after the dealer has had my truck since feb. 29 they will finaly begin the install of a new duramax motor today! im going to have to go back and read up on the breakin period agian....being as my old one had 63,000 miles ive forgoton!

ouch!

What led up to this motor replacement ??


Mac

Blow a headgasket or shorten the rods?


Horace

The famous stack, Juice ***, Quad 215, Nitrous, 100% methanol. Look in the drag racing and truck pulling forum.

Found it... Seems like the rods seem to be the weekest point when the Duramax is pushed to the extreme... The bottom end seems to have proved itself plenty strong and I don't believe the connecting rods are going to limit power either like they did on some Powerstrokes. Time to throw in some stoughter rods and see what breaks next... maybe also some custom valvesprings so that the RPM limiter can be raised higherhttp://www.dieselplace.com/forum/smileys/Big Smile.gif.


Horace

I would be very surprised to find that the rods were not shortened from a hydraulic effect. I’ve seen more than my share of broken engines. Sounds like the cylinders had more liquid than the quench area would hold. I’ve seen a few Carrillo (some of the strongest in the racing industry) rods bent in Sprint cars from the same thing.

dealer said the problem stated with the #2 injector was stuck open "to much fuel in there..." the dealer mechanic said.....http://www.dieselplace.com/forum/smileys/Big%20Smile.gif

SmokinMax


How did you get all the aftermarkets off without the dealer knowing and or finding out, especially all the codes? Just curious for future reference incase I have any trouble.


Thanks


Matthew

Codes can be erased with the Quad Stealth, Predator, and Power Pup. Everything can always be taken off and put back to stock, except probably his transmission.

I remember a guy once who was in this same situation!!! http://www.dieselplace.com/forum/smileys/Confused.gif

SmokinMax


How did you get all the aftermarkets off without the dealer knowing and or finding out, especially all the codes?





Lots of wrenching and some time with a tech2. and maybe an oil change or two http://www.dieselplace.com/forum/smileys/Confused.gif

If you blew yours up only making 575hp, how come heartburn canada can make 675hp without blowin his up? Something smells fishy...

What smells so fishy??????

675hp smells...

beieve it pal, I was there


And I don't lie!!!!

So it's a conspiracy ....





Mac http://www.dieselplace.com/forum/smileys/Approve.gif

Nobody's calling anybody a liar. 20 people witnessed GotJuiced put down 550hp. With a couple of modules and a stock tranny. Never did back it up. But to this day, I still DO believe that the dyno said 550hp, and 20 people witnessed it. Never doubted that, but I'm sure the dyno was in error that day.


Fill in some details. What did heartbeat stack, what kinda dyno, did he back it up on a different dyno on a different day? Can you explain to me how one engine can blow with 575hp and another one makes 100hp more with no damage?

Sorry to hear that Amokin Max. I saw your truck at the movies Saturday night. Mine is in a moreph time right now. It should look a bit different in a few weeks. Looking into a tranny sometime this summer.

yeah I can explain, no methanol!!!!!!! a full tank of 2 is all you need!!!


You can believe what you choose to believe!!! I know it heartbeat, (not heartburn) knows it, along with the ownerr hear and a few others. it rocks and that is that!!! later, and hope to see you somewhere this summer!!!


peace out


DEREK

grasshopper is correct, no meth

what are the symptoms of shorten rods?

LET ME GET THIS STR8-------IF ANY DMAX THAT MAKES 575HP OR MORE IT WILL BLOW-----------SOCAL I THINK YOURE THE ONLY ONE BLOWINGhttp://www.dieselplace.com/forum/smileys/Throw%20Up.gif ---------CHUNKS THAT IS!!!!!!!

Hey Stephen, there are lots more higher than me, and guess what they haven't blown anything either. Better pull that tampon string up a bit, cause your trippin on it and getting sand in some of your secretions.


Pnut- i think you right, other than i was thinking of the governor http://www.dieselplace.com/forum/smileys/Big Smile.gif

http://www.dieselplace.com/forum/smileys/Embarrased.gif HAVE YOU NOTICED HE FINALLY SHOWED UP AFTER THE PORN STARS HAVE ALL BEEN QUARENTINED. I GUESS NOTHING TO DO NOW THAT HES LAID OFF FROM HIS NIGHT JOB AS HEAD SHEET AND PILLOW CASE WASHERhttp://www.dieselplace.com/forum/smileys/Clown.gif

http://www.dieselplace.com/forum/smileys/HiHi.gif http://www.dieselplace.com/forum/smileys/HiHi.gif http://www.dieselplace.com/forum/smileys/HiHi.gif

So it's a conspiracy ....





Mac http://www.dieselplace.com/forum/smileys/Approve.gif Conspiracy????....More like......NO CONSISTENCY!!!! Edited by: JRmac

Hey socal. I've got one question for ya. Have you run what i ran to get that number???? ....................Thats right, you haven't so until then, back of the line little man.http://www.dieselplace.com/forum/smileys/Shocked.gif

thats right man, as far as I'm concerned socal is blowin smoke, but it ain't out his exhausthttp://www.dieselplace.com/forum/smileys/Big Smile.gif. Heartbeat has alot of hours in tuning and dialing his ride in, for me to sit here and listen to some guy talk about how HE thinks it Bullsh*t really pisses me off! Like I said before SOCAL, think what you'd like, but YOU were not there, and you have been in jer's truck!!! Later


DEREK

Socal's gonna be back .... You guys better get reading glasses out .... http://www.dieselplace.com/forum/smileys/Approve.gif


Jrmac care to explain ??


Mac

Thanks MACKIN, I guess my edumication will finally pay off !!!!http://www.dieselplace.com/forum/smileys/Big Smile.gifhttp://www.dieselplace.com/forum/smileys/Big Smile.gifhttp://dieselplace.com/forum/smileys/Big%20Smile.gif

Did I dispute anyone? No.


Did I call anyone a liar? No.


Did I say that you did not achieve it? No.


All I did was ask for some clarification. Can't someone ask an honest question without it resorting to personal insults?


READ THE FRIGGIN POST. Rather than attacking someone and sounding like a child, please just answer the question.


So far all I hear is no methanol (I've never even heard of anyone running that) and straight #2.


Let's try it again. What modules and what level did you stack to achieve 675hp?


Do you have a theory as to why one person damaged his motor at 575hp, yet you and possibly others do not appear to have damaged yours at considerably higher levels?


Another trend I see is higher than expected power levels from our Canadian posters. So my next question is - are they possibly getting better quality diesel than those in the US?


Also note the dramatically lower dyno numbers in CA than CT. I'm sure we're getting crappy diesel in CA, but could it be bad enough as to account for 20 or 30 hp on the dyno?


Let's try and keep the discussion to the point please.

we baseline, at 219 to 225 all the time, it doesn't matter which dyno! Methanol is what led to the dimis of his engine, a straight tank of methanol!!! we do not use this stuff, just #2. And a lil nitrous and alot of tunning. I canot disclose to you any of what jeremy has as far a programing! that will be to his discretion. I saw what you guys were baslining out there, and we are in the same boat as you guys. http://www.dieselplace.com/forum/smileys/Approve.gif


sorry to be such a dick, but when you posted jer's name as heartburn,I got a lil hot!!! peace out!

Another trend I see is higher than expected power levels from our Canadian posters. So my next question is - are they possibly getting better quality diesel than those in the US?


Also note the dramatically lower dyno numbers in CA than CT. I'm sure we're getting crappy diesel in CA, but could it be bad enough as to account for 20 or 30 hp on the dyno?


Let's try and keep the discussion to the point please.





You might be right there, the last time i filled up in Spokane WA i noticed a performance hit. enough so that i changed the fuel filter on the road as i thought it could be plugged!


As far attacks go, this is one of the few posts i have seen you make in reference to a high powered truck that aren't totally troll.


Good Job!Edited by: Got Juice?

Got Juice





Hows the tranny ?? You haven't Given any updates lately .... People are looking for upgrades ....





Mac

Maybe there is a HP exchange rate.

since 135 Canadian Dollars = 100 U.S. Dollars
It might make sense that 544 Canadian HP = 402 US Hp

So really that motor blew at 575 which is 778.26 Canadian HP?

I checked out metric horsepower but it is only 98.632% of SAE horsepower. But it is good for about 10 horse difference, maybe using that measurement on top of better fuel, colder dense air?

Ah, we just need these backed up boys. It would be an easy way to settle this argument. If you can do it twice or more then we've got somthing. Don't ya think, eh?

Ohio, EH? you aren't too far from us here in CANADA! come on up kyle we got a dyno that will be good and warm for ya!!!!http://www.dieselplace.com/forum/smileys/Big Smile.gif

Socal- If you've ever read any of my posts you would know i never start calling people names. If someone brings it, i give it back, hence the "heartburn" comment. Seems to me you started the childish name calliing, so better pull that kettle off of the burner as its getting pretty black.http://www.dieselplace.com/forum/smileys/Cry.gif That and your sig. says it all.


Back to why we are all here, usuful info for all of us to share. My baseline has always been like grasshopper said 218-225. Don't know if its my truck or the dyno. I'm gonna take a wild guess and say a bit of both. Though my truck runs strong, maybe it is the dyno. Either way, i don't really care what my end dyno number is as i'm not a dyno queen truck. I'd rather prove the power pullin that sled or getting that time down. The dyno still shows what my gains are regardless.


As far as the contriversal run. I ran a big pcm tune stacked with the 145 edge which gained me squat when stacked without the nos, but did allow for the nos to be turned up some.........ok quite a bit. No methanol, no propane, just plain winter blend diesel and nos. I do not have that pcm as i sent it back, and was given a bigger one. My next dyno run with the pcm, lets just say was not what i was expecting. That might have been truck related so it was not a fair test, not until the next roller session.. I did do one run with the nos, but only had 600 bottle pressure and no refills around. So it was low, but still 580's if i remember. When i got my 674 i was at 1100 bottle pressure. Talk to anyone about nos, and they will tell you pressure is a huge difference in power or numbers.


Now as far as going over 575 and the motor http://www.dieselplace.com/forum/smileys/Throw Up.gifpuking, i don't think so. I dynoed over 575+ with what i previously ran, numerous times and ran it on the street as well. Tomac is past 575 and he's got how many passes, and no problems that i know of. There are also a few above 700 and a couple above 800 that i know of and no issues from what i have been told. Not that i believe everything i hear or read, just like you, but i ussually have a good feeling about people when talking to them and i trust the sources.


If you don't believe my numbers so be it, i don't care, i know what they were along with others, and the dyno operator, i would think knows his stuff when he builds cars that are running in the 8's. He looked at me during those runs and told me they were going to be good. I guess its just one of those experience things to know by the sound and how the vehicle reacts. http://www.dieselplace.com/forum/smileys/Big Smile.gif

Thanks guys for the responses!http://www.dieselplace.com/forum/smileys/Clap.gif It 's not that I doubted, just wanted to know how it was accomplished.


I shoulda put a big smiley next to the "heartburn" comment, because that's how I meant it, but that's my fault and I apologize!


So just tuning and N2O, eh? I certainly understand how important bottle pressure is to getting the proper amount of N2O. There was almost another 100hp to be gained there just from the difference in bottle pressure.


So this definitely points to plenty of fuel and a lack of oxygen on any heavily tuned Dmax, one needs either N2O or a better turbo.


From a practical standpoint, if one had a module with switchable power levels, then turned on the N2O when needed you could change from nearly stock driving characteristics to 675hp with just the flip of a couple of switches. The best of both worlds.


If one changed turbos and went with a heavily(or poorly) tuned pcm, one might end up with a hard to drive, slow spooling monster.


So whose pcm were/are you running? Is it available to the public, or limited availability? How do you like it? Driveability, smoke, etc? Is it adjustable, how many levels, or or one level?


Just exploring the possibility about diesel quality and power levels. Even among the Socal fuel stops, I can hear/feel a slight difference in how the truck runs. Maybe that's another gas co. profit tactic, just charge CA $2.30/gal and give 'em 25% water...





Thanks again!

right on socal, talk to Jeremy and he will get you set up with the PCM you need!!! until then see you around, or at the track!! later


Derek

Steve,





I have a PCM in my posession, and will test it soon.





Placing a HP level on the destruction point of an engine is not likely valid as tuning (timing etc) all has an effect on how hard a given power level is on an engine.

Got Juice





Hows the tranny ?? You haven't Given any updates lately .... People are looking for upgrades ....





Mac





Tranny is holding quite well, still evaluating its perforamnce and feeding info back to DTT.


We are going to try an even tighter convertor in another month or so


to see if it has good towing manners. The convertor i am currently running with is quite good for all around use, but we want to push the envelope and see where the line is drawn between streetable and not.


DTT is working on a few more allison tweaks to handle my latest power adders. The tranny works quite well up until i start pushing my latest bombs to the max. Mind you this is also while pulling so take it with a grain of salt.

Juice thanks


Not trying to pry or hyjack this thread ...


Last I recall your running A DTT converter and transgo kit ...


When you saying holding well are you able to limp or zing the tranny still ?? Is the tranny not holding or the TC??


Just wondering as no one has tested the Transgo kit to it's limitations ... Would be interesting if you could tell us ya Juice and Bullydog 150 did this to the Allison clutches ...


I can tell you I have ran a similiar combo that would send a stock Allison to an early grave .... If not for a high HP number to say just gobs of low end throttle torque ....


Let us know if you would ....





Mac

Anyone want a good laugh?


My latest Debacle.


http://www.nwbombers.com/cgi-bin/forum/ikonboard.cgi?s=21a62a1a069cea5f49d21a0c1d7a2125;a ct=ST;f=10;t=7386;st=0;r=1;&

http://www.dieselplace.com/forum/smileys/Clap.gif

http://www.dieselplace.com/forum/smileys/Clap.gif





ya ya , i have to remember to have a good 360 degree look around when at a light an loaded for bear..... swear to God i didn't mean to do that!