: SD Diesel Place Dragster !!!
Super Diesel 08-24-2004, 02:22 AM I am starting the project now. I am having the rear end built and am designing up the frame rails for the 240 inch rail MONSTER. I need a blown motor that has a good block though (spare). Any ideas? I also need stock turbos from upgraded Dmaxes. Most of the parts I will build. I am having some rods made and will have some forged pistons with ceramic coated tops. I will be also building my own exhaust for the turbos (one on each side) and new intake manifolds for each of the heads. We need this for the Dmax crowd, and for history. All who donate will get there name on the side and recognition. I could do this by my self, but it would be slow. I will post pics as the build goes. It will be called; Super Diesel, Diesel Place Dragster. Edited by: Super Diesel
Dmax Tim 08-24-2004, 06:41 AM I wish I still had my '23 A altered, a Dmax/alli or lenco sure would be fun.
I was running mid 8s w/ a hopped up LS7/glide.
What are u using for trans?
The cummins powered dragster at Muncie had a glide http://www.dieselplace.com/forum/smileys/Disapprove.gif and I think u need more than 2 gears w/ our rpm range.
baimpala 08-24-2004, 08:19 AM How about just taking donations via paypal or something?
Bronco 08-24-2004, 10:36 AM A built 5 speed Allison would be cool. Someone needs to figure out a good trans brake or equivelant. Build a stripped down TCM/PCM with no BS. Just line pressure.
The stock Dmax with a custom Extreme program and a huge does of N02 should make enough power for a 2300 LB car. The trick would be getting the programming/camshaft/turbo to work in such a light vehicle.
Just go look at the time slips of 800HP/1500 Ft/lb 2300LB rail. Pretty fast.
Just my 2 cents.
Super Diesel 08-24-2004, 11:44 AM The HPs will be higher than that. I am considering a powerglide. The 5 speed in my truck just rips through the grears as is. It would be to much for a really fast vehicle. I would like to see 7s in this thing. I don't like the 3 speeds but I will research further. I will be talking with Scott Bentz who owns the Cummins diesel dragster on some of the stuff I need to do. He only lives about 20 miles away. I am planning on having the PCM programmed by Steve at TTS. Thanks for the offer on the money donations, but we'll see latter how it is going. Edited by: Super Diesel
ROCKYMTNDMAX 08-24-2004, 11:46 AM The only thing I have to donate is time, If you need a hand with labor, pm me, ill be glad to help.
That's what the Cummins dragster uses... powerglide. Runs 9 second quarters.
Good luck with the Dmax dragster. Looks as though fuel supply and injectors (fuel quantity) are the technical hurdle. With the engine out in the open, putting any larger turbo on should be much easier.
IMO: Fuel cell in front to gravity feed fuel. Chassis with 4 link suspension for rough tracks and ease of "dialing in". PG trans to keep the start less violent. drag cars dont lose much ET with a 2 speed trans, they just lose a little 60' and gain it back at the top end and MPH. 10" Turbo/blower converter (ATI). A good bulletproof PG "shorty" dragster trans with 1.80 straight cut gear, vasco imput shaft, and aftermarket case is around 3k in parts. Will hold over 1500 hp to eliminate breakage. JW transmissions sells a 2 peice case so you can change the bellhousing for different motor apps. or just get a JW "Duramax?" bell housing and bolt it to a stock case and get a shield. Call and talk to them.
I wish i had spare $hit to send you but I finally went this route with the trans on my drag car, after I broke everything more than once. Dont slack on the trans. The stock planetary and shafts wont cut it!
Trippin 08-24-2004, 01:33 PM Sounds like a great project! http://www.dieselplace.com/forum/smileys/Thumbs Up.gif
Burner 08-24-2004, 04:21 PM I'm slobbering.......... I would still like to see a 4L85E hooked to a stout 6.6 Duramax.
The Dodge......what kind of injection system? What are the torque curve numbers and how does the curve look? I was thinking that the Boshe rail system may have too much down stairs for most transmissions.http://www.dieselplace.com/forum/smileys/Confused.gif
Mike
will keep my eyes an ears open, Sure would like to see this project work. You may have to let Wade drive tho cause he don't have sleepin problemshttp://www.dieselplace.com/forum/smileys/Clap.gif
Genohttp://www.dieselplace.com/forum/smileys/Hug.gif
lly101 08-24-2004, 11:51 PM http://www.dieselplace.com/forum/smileys/Big Smile.gif Go man go!! http://www.dieselplace.com/forum/smileys/Clap.gif
We all need to get on this wagon and help SD
lly101 08-24-2004, 11:53 PM Are we going with or without drugs
I vote for drugs (just so you know)
Andrew
Diesel Power 08-25-2004, 12:02 AM That will be one think to see! i can't wait...
Great name by the wayhttp://www.dieselplace.com/forum/smileys/Embarrased.gif
dmaxalliTech 08-25-2004, 12:17 AM I'm slobbering.......... I would still like to see a 4L85E hooked to a stout 6.6 Duramax.
why? I dont think it will take it personally... Look what we are doing to modded Allisons as it is.. I know that a PG will take a massive amount of aftermarket parts to hold the torque
Burner 08-25-2004, 12:27 AM No big reason....... I think it will hold. I think it will hold 800 HP if it's built right. plus.......... I've never seen it and it should "bolt up" with just a few modifications. Although i hear it was on some of the very early production models...............Edited by: Burner
Super Diesel 08-25-2004, 01:48 AM I am shooting for a race weight of 1800-1875 with out any fuel or person on board. Of course it will use N2O and some other goodies I have in the works. I am also shooting for 1000 to 1100 hp for starters. I know I can get there with the way I want to prep the motor. It should be able to handle 2000hp and 3000-4000 fpt in the end before things start going away. Yes, it does sound like I am shooting big. I am! I know how to do it though and what it will take. I would like to see it compete with the alcohol guys. This would put diesels over the top. Remember, diesel does have considerable more energy than gasoline in it and the motor would last considerably longer in these conditions because of the oil contained in diesel. It will be a long proccess. With the help of all the great folk here at the Diesel Place, it will come together pretty quickly though. The built Powerglide is the only thing I think I would trust behind the massive torque of a race built diesel. The torque will be HUGE. That's what breaks things. I want something that the Top Fuelers use that they can't break. I though the name was a good one. It best describes the new modern diesels that were are lucky enough to be able to enjoy this day in age, expecially the Dmax. When I got my truck, and rolled into work with it, a coworker said, WOW is that one of those new SUPER DIESELs i've been hearing about? I said, OH YEA! And it all started. It will be a credit to the Diesel Place, the Founder, Admin, and the honorable members that reside here. Edited by: Super Diesel
Bronco 08-25-2004, 02:09 AM All of this powerglide talk is starting to get me uptight. Before I become irrational here, clue me in on your MAX ENGINE RPM?
Super Diesel 08-25-2004, 02:29 AM Some where around 4000-4200rpm max, maybe more. Time will tell though. The powerglide is practically indestructible when built for these apps. That's why the Top Fuelers use it. They turn 12,000 rpm. Nothing is set in stone yet.
Burner 08-25-2004, 02:53 AM Can you get a HP and TQ curve for the Top Fuelers? What RPM do they leave? How much HP & TQ is hitting the PG at that point? What does the trans see in the first 260 ft, in TQ & HP?
........ just thought I'd ask.
Bronco 08-25-2004, 03:27 AM I am not worried about the strength of a powerglide at all. I am more concerned that a diesel engine has a very narrow power band and a very narrow RPM operating range with a very low peak RPM ( 4000).
Lets be hypothetical for a moment. You wanna brake into the 7.0's. That is approx. 175 MPH. 175 MPH at 4000 RPM with a 33" tall slick would require a rearend gear of approx. 2.24.
So now you have a 33" slick with a 2.24 rear end gear.
A powglide has two gears. The final gear is 1:1. The first gear is ?
Lets just say 2:1.
It would be similar to a Duramax truck with manual transmission ( ZF6) 38" tall tires and launching in 4th. gear and then shifting directly into 6th. gear. The reduced weight, extra HP and torque converter in the transmission would reduce the severity but I think you get the idea.
From what I can tell your current motor and transmission crammed in a 2300 LB dragster with 2.24 gears and a 33" tall slick should get you into the high 7.0's at about 175 MPH. Yes it would shift quickly( not nearly as quick as a 3.73 reargear ) but so what. There are people who bang manual trannys that quick and there are Superstock cars that do it even quicker. The super stock guys are just pulling back on different levers but never the less they shift quite a few time in a little over 6 seconds.
Just think how strong the Allison would be in a vehicle that only weighed 2300 Lbs.
If you can't tell, I have a hard on for a Duramax/Allison dragster. Too Cool!http://www.dieselplace.com/forum/smileys/Cool.gif
It would take a NASA engineer to program the TCM and PCM to work in this application, but I bet Steve could do it.http://www.dieselplace.com/forum/smileys/HiHi.gifEdited by: Bronco
Bronco 08-25-2004, 03:32 AM Can you get a HP and TQ curve for the Top Fuelers? What RPM do they leave? How much HP & TQ is hitting the PG at that point? What does the trans see in the first 260 ft, in TQ & HP?
........ just thought I'd ask.
Imho top fuelers are not a good comparison at any level. Just two different. For one thing there transmissions is basically a huge clutch pack ( 16 plates IIRC?) that comes in at desired points. The clutch pack slips the entire length of the track and gets serviced after every pass. So they are not actually shifiting gears like a normal automatic.Edited by: Bronco
I'm slobbering.......... I would still like to see a 4L85E hooked to a stout 6.6 Duramax.
The Dodge......what kind of injection system? What are the torque curve numbers and how does the curve look? I was thinking that the Boshe rail system may have too much down stairs for most transmissions.http://www.dieselplace.com/forum/smileys/Confused.gif
I wouldn't necessarily call it a Dodge dragster.. I don't think there is a Dodge part on it. It's a Cummins dragster.
Bosch P7100 pump from the looks of it and a couple big turbos. No aircleaner. Check out the Powerglide. I don't think there is even a point to using an Allison. The guy said it's simple and can take all the abuse he can throw at it. I don't know any specs of the motor. I think it also has a custom fabbed intake manifold.
Maybe these few pictures will help out or give you ideas.
http://www.dieselplace.com/forum/uploads/FC7_DSCN5517.jpg
http://www.dieselplace.com/forum/uploads/982_DSCN5499.jpgEdited by: hoot
Bronco 08-25-2004, 10:06 AM Hoot wrote:Check out the Powerglide. I don't think there is even a point to using an Allison.
Hoot,
That dragster is nice. I have seen it run a few times.
The problem is it only runs 9'0s. Huge difference between 9'0s and 7'0s. That dragster has a enormous amount of TQ and that is about it. I do not like the way it stages, spools,launches or makes the pass. It does pull hard mid track.
The Allison is more complicated, but I gaurantee it would yeild a quicker final result. On top of that it would be unique to our GM trucks.
It is no big deal, I just wanted to share my opion and give you guys a heads up on the rearend gear set that is required to make a high 7'0 second pass at a max. of 4000 RPM. The 33" tall tire and 2.24 gear will not change regardless of your engine output and transmission choice. I will be out of the loop for a few days, it will be interesting to see what others have had to say when I check back in.
Really fast rigs get me stoked.http://www.dieselplace.com/forum/smileys/Rock On.gifEdited by: Bronco
baimpala 08-25-2004, 12:20 PM Is there any worry about lost time through 4 shifts? Seems like with that kind of torque, you could use fewer gears applying the power longer. Maybe the shift time isn't to worry about. . .
Dennis
Micheal Tomac 08-25-2004, 12:49 PM if you have the right upgrades in the allison you don't have to worry about wasted time on shifts
lly101 08-25-2004, 01:19 PM I would love to see an alli in it just for grins and show reasons
Dmax Tim 08-25-2004, 01:41 PM I think a 3 or 4 speed lenco would be nice too.
Besides manual tranny and clutch would be http://www.dieselplace.com/forum/smileys/Cool.gif
Got to have something to do while cruising down the track http://www.dieselplace.com/forum/smileys/HiHi.gif
I don't see it slowing down the prostock & alcohol cars.
BMDMAX 08-25-2004, 02:29 PM I think a 3 or 4 speed lenco would be nice too.
Besides manual tranny and clutch would be http://www.dieselplace.com/forum/smileys/Cool.gif
Got to have something to do while cruising down the track http://www.dieselplace.com/forum/smileys/HiHi.gif
I don't see it slowing down the prostock & alcohol cars.
Dat's cause them mofo's got supachargaz dawg! The manual would prolly kill the boost too much even with the lenco.
I think that it should have an Ally just for the cool factor too.....
IBDMAX'IN 08-25-2004, 03:40 PM I may know where to get a 2 speed PG that is stuck in first gear, if my friend will part with it. it came out of his 57 chevy bellaire. I beleive he locked it in first doing neutral tranny drops to get the tires to spin, but if your going to rebuild it anyway what the heck right?
I will talk to him today to find out if he will part with it and how much.
I would love to see a allison in the dragster but who is going to donate one??? they are quite pricey!!! and then you have to have it upgraded to hold all that power.........SD, maybe you could get clint to donate a tranny as soon as you get the dragster built, I'm sure that he would love to have the sponsership rights on the first ever d-max dragster, what a opportunity right!!!!!
IBDMAX'IN 08-25-2004, 03:42 PM One thing I forgot to add..........ALLISONS ARE HEAVY!!!!! Edited by: IBDMAX'IN
baimpala 08-25-2004, 06:22 PM if you have the right upgrades in the allison you don't have to worry about wasted time on shifts
Okay, thanks. I guess I'm thinking lower power (how if you have a Juice/Attitude and set it to defuel only 4-5, it is a lot quicker than defuel all shifts) than what SD is thinking. I think it would be really cool to have the Allison in it, too. It is pretty heavy, but what a statement for the Duramax/Allison combo. GM might even give you a little money if it's fast enough. Good advertising for them.
Dennis
The length of the PG trans will work best with the dragster app. If you look at the pic of the dragster it has a "shorty" glide with the tailshaft removed and a coupler between it and the rearend. (very short) I believe Mikes Transmission is in Cal and may at least help you with an app. They are expensive but can build a bulletproof top sportsman/comp type of trans as I described.
The allison is toooo looooong for a dragster.
Dragraceresults has a couple old dragsters for sale that would save a lot of money on time spent and r&d IMO. Racecars are better bought used if not going "top shelf". FACT
johndeers 08-25-2004, 09:29 PM why not a turbo 400
My experience: A less violent "hit" with a 1.80 1st gear ratio of the glide. They (ATI, Coan or BTE) can set him up with a converter that will put him at the torque peak at launch and then shift before the HP peak and get good ET without slipping and sliding with the super low gear of the 400. Most dragsters with glide trans get 1.1 60 times with less than 850 HP and 750lb tq. Power is GREAT but you gotta get it and keep it stuck to the ground.
Burner 08-26-2004, 12:32 AM no one has mentioned where the old Power Glide came from........
PEANUTGRWR 08-26-2004, 08:27 AM YOU GUYS TAKE IT EASY ON THE ROOKIE JOHNDEERS, I THINK I MIGHT KNOW HIMhttp://www.dieselplace.com/forum/smileys/Big Smile.gif
YOU GUYS TAKE IT EASY ON THE ROOKIE JOHNDEERS, I THINK I MIGHT KNOW HIMhttp://www.dieselplace.com/forum/smileys/Big Smile.gif
That's his problem http://www.dieselplace.com/forum/smileys/Cry.gif
baimpala 08-26-2004, 12:14 PM SD,
Your check is in the mail. Small money, but hope it helps.
Dennis
ratlover 08-26-2004, 12:36 PM YOU GUYS TAKE IT EASY ON THE ROOKIE JOHNDEERS, I THINK I MIGHT KNOW HIMhttp://www.dieselplace.com/forum/smileys/Big Smile.gif
That's his problem http://www.dieselplace.com/forum/smileys/Cry.gif
He hasnt said anything so if he does know you it sounds like he dosnt want it to get outhttp://www.dieselplace.com/forum/smileys/Tongue.gif
IBDMAX'IN 08-26-2004, 02:14 PM I think that for a pro dragster the best set up will be to go with the 2 speed powerglide, not only for the weight savings but as Tony stated it's way tooooo looooong. Don't get me wrong I think that a Allison would be sweet but it's just not practical.
GSXRTURBO1 08-26-2004, 02:34 PM Top Fuelers no longer use a transmission, it's all direct drive with clutch tuning. They have timers that add weight to the clutch making it lock up more as it goes down the track. When the top fuelers and funny cars did use transmissions, they were NOT powerglides! They were usually 2 speed B&J trans with a clutch. A lenco can also be used, they have as many gears as you like, as each section is a different gear. A 5 speed Lenco would have 5 sections (6 if it uses a reverse).
The best bet for what you're trying to do would be a transmission that uses a torque converter, but planetary type gear changes. The Lenco's use a clutch, but I think you could modify one to use a pump with a converter, or modify a B&J with a pump and a converter. A converter will be mandatory to build any appreciable boost on the starting line. Very, very cool project. Edited by: GSXRTURBO1
Chilly 08-26-2004, 02:52 PM SD – I think you have a great idea on making a dragster. Let me know if there is anything I can do to help you. I also have a few suggestions to try and help with the transmission choice.
I don’t think a glide will work. First, I don’t think it will hold up to the torque that SD will produce with the duramax. All cars that are making tons of torque and hp will use either a lenco or a BJ trans (both use clutches). Some guys will get away with a bruno (uses a converter), but its tough to control the torque off the line with them.
I also don’t think using a 2 speed is the way to go either. The spread between the shifts is too great and will actually take the wind out of the motor. You will lose boost since the rpm drop is so great. In pro mod (race class in IHRA and NHRA), the officials used this to slow down the blower cars so the nitrous guys could keep up. The blower cars can only use a 3 speed, while the nitrous guys can use a 4 speed.
Last, another reason why top fuel, pro mod or any other high torque and hp car doesn’t use a glide is because you wouldn’t be able to get off the line with all torque using a torque converter. A converter does just that, it multiplies torque. You really don’t need that or want that in high torque applications. The result will be tire shake. So that’s why a clutch or clutch pack is used and we slip the heck out of the clutch until the car gets moving. That way you minimize the tire shake do to the clutch coming in too quick.
This is just my opinion based on what is done with alcohol cars. Not sure how different it will be with a diesel.
IBDMAX'IN 08-26-2004, 05:51 PM GSX, Chilly,
You guys rock!!!! This is exactly why I love this site, so much knowledge and know how.
So how much will this little set up cost?? Sounds pretty expensive!! but hey, if your gonna do something you might as well do it right!!!
Maybe this is why the cummins dragster is only running 9's????
PEANUTGRWR 08-26-2004, 06:50 PM YOU GUYS TAKE IT EASY ON THE ROOKIE JOHNDEERS, I THINK I MIGHT KNOW HIMhttp://www.dieselplace.com/forum/smileys/Big Smile.gif
That's his problem http://www.dieselplace.com/forum/smileys/Cry.gif
He hasnt said anything so if he does know you it sounds like he dosnt want it to get outhttp://www.dieselplace.com/forum/smileys/Tongue.gif
http://www.dieselplace.com/forum/smileys/Cool.gif
COULD BE A FATHER FIGURE HOOT-----TRUST ME IF YOU THINK IVE GIVEN YOU HELL YOU AINT SEEN sh*thttp://www.dieselplace.com/forum/smileys/HiHi.gif
your turn Hoothttp://www.dieselplace.com/forum/smileys/HiHi.gif
Genohttp://www.dieselplace.com/forum/smileys/Hug.gif
Problem with doing the clutch is the diesel is not going to turn the r p m that the diggers do and the clutch would have to slip to much. We need I feel at least 3 gears to go all the way.
Genohttp://www.dieselplace.com/forum/smileys/Hug.gif
IBDMAX'IN 08-26-2004, 07:11 PM YOU GUYS TAKE IT EASY ON THE ROOKIE JOHNDEERS, I THINK I MIGHT KNOW HIMhttp://www.dieselplace.com/forum/smileys/Big Smile.gif
That's his problem http://www.dieselplace.com/forum/smileys/Cry.gif
He hasnt said anything so if he does know you it sounds like he dosnt want it to get outhttp://www.dieselplace.com/forum/smileys/Tongue.gif
http://www.dieselplace.com/forum/smileys/Cool.gif
COULD BE A FATHER FIGURE HOOT-----TRUST ME IF YOU THINK IVE GIVEN YOU HELL YOU AINT SEEN sh*thttp://www.dieselplace.com/forum/smileys/HiHi.gif
Whew, sounds like it's getting hot in here!!!!
How about that diesel dragster??? LOL
PEANUTGRWR 08-26-2004, 08:39 PM HAS SD GOT A CHASSIS YET?
IBDMAX'IN 08-26-2004, 08:49 PM I think he's still working on that part still, why you have one laying around somewhere???? http://www.dieselplace.com/forum/smileys/Big Smile.gif
PEANUTGRWR 08-26-2004, 08:52 PM http://www.dieselplace.com/forum/smileys/Approve.gif SURE KNOW WHERE THERES ONE-----GLIDE AND ALL
Super Diesel 08-26-2004, 09:30 PM I'm working on the design of it right now. I am trying to absorb input from some veterans of the dragster world. I have some one with the steel for it. I just need to get a jig to start welding it up on. Working on the motor right now as well.
IBDMAX'IN 08-26-2004, 09:49 PM Peanutgrwr,
how much do you think that dragster would go for???
SD,
Might be a good place to start getting something already welded and certified by NHRA. Just a suggestion, I know they have quite a few regulations on just how you can build your chassis. You may find yourself reading 200+ pages of rules on how you can build just the chassis. http://www.dieselplace.com/forum/smileys/Ermm.gif
But if you build your own then it will certainly be one of a kind!!! http://www.dieselplace.com/forum/smileys/Big Smile.gif
PEANUTGRWR 08-26-2004, 09:53 PM I REALLY DUNNO BUT I CAN FIND OUT. IM SURE IF JOHNDEERS READS THIS HE CAN TELL YOU MORE. HE WILL KNOW THE DRAGSTER IM TALKING ABOUT. YES YOURE GOING TO RUN INTO ALL KINDS OF STUFF WHEN YOU START BUILDING ONE AS FAR AS RULES AND REGS GO
johndeers 08-26-2004, 11:15 PM I think you can buy a chasis way cheaper than you can build one. The dmax cant be that much different than big block chevy size and weight wise. Refine your power train and build a nice car when every thing is working good. I think the glide will work ok but I think you are going to have to buzz the motor higher than 4200. Tractor pull diesels are turning up to 6500rpm so the max ought to.
Maxtech 08-27-2004, 08:15 AM SD,
I may be of considerable help with this project if you would like to e-mail me for a contact #.
vanhorntruck@sbcglobal.net
lly101 08-27-2004, 12:18 PM SD
Why not build it to look like a pickup instead of a rail. Could still tube frame and all - but for cool and maybe sponsor reasons the truck look would be way to go. Just food for thought. It will cost more but I'm working on that for you too. No promises yet but I am working on it!
Andrew
baimpala 08-27-2004, 12:51 PM I think that would be cool, too. Aerodynamically a truck is poor at best. It's hard to push a brick at the speeds I think SD is talking about.
I think you'd have plenty of sponsorship waiting to support a DMAX/Allison combo, but people are convincing me against the Allison. I just think it would be sooo cool to have the DMAX/ALLI in a dragster.
Dennis
PEANUTGRWR 08-27-2004, 06:58 PM HOW ABOUT ONE OF THOSE RETIRED PROSTOCK TRUCKS THAT THEY DONT RUN ANYMOREhttp://www.dieselplace.com/forum/smileys/Cool.gif NOW THAT WOULD BE "TRIPLE THROW DOWN" COOL http://www.dieselplace.com/forum/smileys/Big Smile.gif
Super Diesel 08-27-2004, 08:29 PM The dragster will be out fitted with a Lenco three speed trany with a Bruno front drive to take advantage of spool up with a torque converter. The Allison won't work for this application. Sorry guys. The point is that a Dmax is going to get out there and do battle. Another Cummins dragster is being built now as we speak. I don't want them dominating that area of racing with no competition. The Dmax will be pritty stock (except for a built bottom end) at first to work the bugs out. Then the pressure will be applied when we beat the hurdle of making everthing work in harmony together (only big programming and mayby N2O at first). Edited by: Super Diesel
baimpala 08-27-2004, 08:45 PM And you know what. That's awesome. No matter what you decide to do I'll be behind you. If you want to make it hot pink with clown horns on it, go for it. I'm not doing the WORK it will take to make this thing awesome. No reason to be sorry about anything. You makea da dragstah, you makea da rules
(Uh, I was just kidding about the hot pink thing and the clown horns)http://www.dieselplace.com/forum/smileys/Big Smile.gif
Dennis
White Duramax 08-27-2004, 10:00 PM I saw a motor on ebay the other night. It was at 500$, said it had over 100k on it and a couple injectors were bad.
Bronco 08-28-2004, 11:26 PM Great post!
I would be curious to know exactly what the max RPM of the other diesel dragsters is? The max. RPM cannot be over looked. If 4000 RPM is truly the Max. RPM. then a 2.25 gear or so will be MANDATORY.
2.25 is never used in a real race car. All of this power glide talk is in reference to motors that turn any where from 6000 RPM to 9000 RPM and have rearend gears of 4.11 to 5.88. Quite different then what we are trying to do.
I see SD is talking about using a 3 speed tranny. We are now getting closer. The three speed is starting to have a low enough 1st gear to get the car moving and a small enough split to keep the car moving, however I am still concerned that is still missing at least one gear.
If any of you discuss transmissions with your fellow gear heads or transmission builder, make sure they understand you are talking about a 2.25 rear end gear with a max RPM of 4000 RPM. If you could get 5000 RPM out of the Duramax, you could go with a 3.0 gear. All of the difference in the world.
lly101 08-29-2004, 11:54 PM lets keep this one up top
PEANUTGRWR 08-30-2004, 07:46 AM WOULDNT A GLIDE WITH A BREAK BE MORE PRACTICAL AND CHEAPER THAN A LENCO?
GSXRTURBO1 08-30-2004, 08:51 AM Cheaper, yes, but I think the big torque will end up testing the limits of a PG, which would make it more expensive in the long run.
GSXRTURBO1 08-30-2004, 08:55 AM A trans brake applies forward and reverse bands at the same time, no? Can you imagine the internal stresses putting 1500 ft lbs into that trans? Race cars using a trans brake do not make nearly as much torque on the starting line. They need the torque multiplication using the correct converter for the application. A healthy Duramax would definitely push the physical limitations of a glide with a brake IMHO.
IBDMAX'IN 08-30-2004, 06:37 PM I think the lenco will do the trick.
And I'm sure that SD will have plenty of sponsors including GM once everything is finished regardless if it's got a allison in it or not, after all, the only GM product in the mix is the motor because allison although owned by GM is still a different company.
I believe that with the right tuning and parts the d-max will be able to abtain between 5000-6000 RPM. But at that speed the tuning has to be just right or the whole thing will just grenade!!! http://www.dieselplace.com/forum/smileys/Confused.gif
Everyone should start printing this page so we can tell our kids that we were all a part of history!!!! because after SD gets this thing going, thats exactly what this post will be..........the start of the d-max dragster!!!! http://www.dieselplace.com/forum/smileys/Clap.gif
Wade
You mean my grand kidshttp://www.dieselplace.com/forum/smileys/Clap.gif
Genohttp://www.dieselplace.com/forum/smileys/Hug.gif
johndeers 08-30-2004, 10:43 PM I talked with the guys at Sunset Racecraft in Lubbock TX and their opinion was that a properly set up glide would hold the max ok. They ran one behind a 632 with duel fogger systems that ran high 6s at over 200 mph in top sportsman. I don't have any actual numbers on hp and tq but alot I asume. It was all after market but held up well. Can't wait to see it come together
Mikey
IBDMAX'IN 08-31-2004, 04:08 PM Geno,
I forgot that you have grand kids, I guess if you would act your age once in a while we wouldn't have these mix up's!!!!! http://www.dieselplace.com/forum/smileys/HiHi.gif
Wade http://www.dieselplace.com/forum/smileys/Hug.gif
Bronco 08-31-2004, 06:08 PM I think the lenco will do the trick.
And I'm sure that SD will have plenty of sponsors including GM once everything is finished regardless if it's got a allison in it or not, after all, the only GM product in the mix is the motor because allison although owned by GM is still a different company.
The long block is Isuzu, turbo ICH, Fuel Bosch.
I believe that with the right tuning and parts the d-max will be able to abtain between 5000-6000 RPM. But at that speed the tuning has to be just right or the whole thing will just grenade!!! http://www.dieselplace.com/forum/smileys/Confused.gif
Diesel were never made to turn fast. Not enough time at TDC to get that nice slow burn.
Everyone should start printing this page so we can tell our kids that we were all a part of history!!!! because after SD gets this thing going, thats exactly what this post will be..........the start of the d-max dragster!!!! http://www.dieselplace.com/forum/smileys/Clap.gif
If we do come together, start with a good design, and beat the pants off of everyone else out there, we will indeed make history.
Don't ask me why but a 4000 RPM, tall rear gear( 2.25) 4 or 5 speed tranny and light vehicle is the way to go. You guys figure out the rest, like the paint job. http://www.dieselplace.com/forum/smileys/HiHi.gif
Just visualize BMDMAX's truck ( 750 HP mode), subtract the weight of a mid size sedan, reduce drag by 25%, reduce drivetrain loss by 25% and add 39"x18" slicks!! http://www.dieselplace.com/forum/smileys/Evil Smile.gif
Edited by: Bronco
Wade
I do act my age at least when Im drunk.http://www.dieselplace.com/forum/smileys/Cool.gif
Genohttp://www.dieselplace.com/forum/smileys/Hug.gif
Stick with the lenco a more heavy duty set up
Bronco 08-31-2004, 08:40 PM http://www.lencoracing.com/
Now just pick one. http://www.dieselplace.com/forum/smileys/Confused.gif
Get with Lenco and let them tell you what you need as far as ratio's and the amount of tourque you will put in it. This is the only problem I have with the glide. The input shaft is rather small and I have seen them twist besides the split may cause boost loss.
Genohttp://www.dieselplace.com/forum/smileys/Hug.gif
Bronco 08-31-2004, 09:24 PM Probally better send them a dyno plot.
IBDMAX'IN 09-01-2004, 04:28 PM "The long block is Isuzu, turbo ICH, Fuel Bosch."
Would GM not sponsor the D-max because Isuzu helped make it?? http://www.dieselplace.com/forum/smileys/Ermm.gif I'm just saying I don't think it will matter if the Allison is attached.
Diesel were never made to turn fast. Not enough time at TDC to get that nice slow burn.
Care to inlighten us as to how the tractor pullers do it on their tractors??? They MADE them to turn fast.
I think your way off base, Super Diesel pushes 3800-3900 RPM on a stock long block. So your telling me that if he builds a race motor he can only get 100-200 more RPM???? http://www.dieselplace.com/forum/smileys/Confused.gif........I would almost like to say he could push 4000rpm with the way his truck sits.
put enough air in with the #2 and have hot enough compression and it'll burn.
SD is paving his own road here, no one else has ever made a d-max dragster, that's why this is so cool. So lets not try and limit our options here with something you don't THINK can happen and focus on how to MAKE it happen!!! http://www.dieselplace.com/forum/smileys/Big Smile.gif
"Those who follow in the footsteps of others are not likley to surpass them"
Bronco 09-01-2004, 06:23 PM SD is paving his own road here, no one else has ever made a d-max dragster, that's why this is so cool. So lets not try and limit our options here with something you don't THINK can happen and focus on how to MAKE it happen!!! http://www.dieselplace.com/forum/smileys/Big Smile.gif
"Those who follow in the footsteps of others are not likley to surpass them"
Let's not get carried away here. I never said this couldn't happen. I have been focusing on making it happen before it was ever even announced here at the Place. I don't just want it to happen, I WANNA WIN!
The only way to win is to put more power to the ground then what the competitor is putting to the ground. With the same or less weight.
Note: I did not say make more power. I said put more power to the ground.Edited by: Bronco
IBDMAX'IN 09-01-2004, 06:57 PM Let's not get carried away here. I never said this couldn't happen. I have been focusing on making it happen before it was ever even announced here at the Place. I don't just want it to happen, I WANNA WIN!
The only way to win is to put more power to the ground then what the competitor is putting to the ground. With the same or less weight.
Note: I did not say make more power. I said put more power to the ground.
[/QUOTE]
http://www.dieselplace.com/forum/smileys/Clap.gifhttp://www.dieselplace.com/forum/smileys/Clap.gifhttp://www.dieselplace.com/forum/smileys/Clap.gif Now we're talkin
IBDMAX'IN 09-03-2004, 02:14 PM Lets keep this one up at the top
Looks like SD found a motor for the dragster!!!! Looks like he is well on his way to getting this thing going. http://www.dieselplace.com/forum/smileys/Clap.gif
ratlover 09-03-2004, 02:28 PM I asked this in another thread but whats the theoretical max rpm of a duramax? Just figuring the burn rate of #2 diesel compared to piston speed(based on the dmax lenght of stroke)
Figuring the theoretical/armchair quarterback/benchracing max rpm of a duramax should be pretty easy. What speed would we be thechnicly "outrunning the flame"?
Now if we start mixing different fuel in there? it starts to get more complicated. http://www.dieselplace.com/forum/smileys/Confused.gif
IBDMAX'IN 09-03-2004, 03:45 PM Depends, If you're running enough boost you will be creating so much more compression and heat that you could burn the #2 extremely fast. If you look at maddog he's running 120 lbs of boost to burn that #2 and he can crank out 5200+rpm. Now as we all know the duramax is a v8 design and can turn faster than the cummins I-6. It's just a matter of finding out how much boost will be needed to create enough compression to burn it fast enough. Thats also when you will start to run into problems with keeping the motor in one piece.
The real problem here is how to build the bottom end strong enough to hold up with all the heat and compression, then fuel burn rates shouldn't be as much of a problem, all you will have to do is turn up the boost so it creates more heat.
And your right if we mix some propane or other fuel that will act like a catalyst and make the fuel mixture burn quicker then you will require less boost to burn the #2. but all in all it's going to come down to tuning the motor correctly once it's strong enough to hold up to some serious power.
MI Black Max 09-03-2004, 04:58 PM Before you give up on the Th-400 too quickly, give Carl Rossler a call http://www.rosslertrans.com and talk to him about his own little version called the TH210 that he runs in his 1955 Chevy NMCA Pro Outlaw Street car. If it can hold the power to run a best ET. 6.68@213mph at a hefty 2600 lbs, I think it will cover your project. http://www.dieselplace.com/forum/smileys/Big Smile.gif
Pair that up with a Neale Chance 10" racing converter http://racingconverters.com/chance-racing-converters.html and you'll be spending most of your time designing the perfect wheelie bars. http://www.dieselplace.com/forum/smileys/Cool.gif
RickEdited by: MI Black Max
IBDMAX'IN 09-07-2004, 06:46 PM Super Diesel,
Just wondering how the dragster is comming?? I know you ended up buying the motor, did you have a chance to take a look at the internals of the thing yet?
Let us know the suspense is killing me!!!! http://www.dieselplace.com/forum/smileys/HiHi.gif
Super Diesel 09-08-2004, 01:48 PM Just got back in town. No, I havent yet. I have alot of work to catch up on first. I will keep up on this as it progresses. I will take pics to show as things move on.
IBDMAX'IN 09-08-2004, 05:16 PM sweeeeeet!! http://www.dieselplace.com/forum/smileys/Big Smile.gif
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