Twins or a Big Single [Archive] - Diesel Place : Chevrolet and GMC Diesel Truck Forums

: Twins or a Big Single


dieselmaniac
04-20-2005, 09:16 AM
I am going to add some massive power gains to the my D-max this summer including a turbo upgrade. I want use it for towing my boat and trailer, everyday cruising and also take it to the strip once and awhile and an occassional sled pullin. Wanted to see what everyone thinks but i know there aren't many guys runnin stuff right now. A few ATS units and a few DTT twins. just wanted some feedback.

Slick
04-20-2005, 09:41 AM
If your going to sled-pull you probably would want to look at the big single from ATS. Twins would put you in the mod. class, and I don't think we can compete yet with the modified Cummins.

dieselmaniac
04-20-2005, 09:54 AM
True i don't know a D-max that can make the crazy power that the mod cummins are doing right now. My buddy has a 96 12 valve runnin 90lbs of boost through twins off a 14 liter and 10 liter CAT. 5200 rpm Cam and a host of other power stuff on only #2. Its alittle over a 1000hp @ the crank with 1600 ft lbs. its a digusting amount of power out of a 5.9L engine.

Opie
04-20-2005, 10:27 AM
True i don't know a D-max that can make the crazy power that the mod cummins are doing right now. My buddy has a 96 12 valve runnin 90lbs of boost through twins off a 14 liter and 10 liter CAT. 5200 rpm Cam and a host of other power stuff on only #2. Its alittle over a 1000hp @ the crank with 1600 ft lbs. its a digusting amount of power out of a 5.9L engine.
dieselmaniac,

Who’s your friend? The highest hp truck I know of is 886. (JetPilot) Several people say they have seen/heard a 1000 hp 5.9 Cummins. But until a truck can do it on the rollers it is just imaginary horsepower.

<?xml:namespace prefix = o ns = "urn:schemas-microsoft-com:office:office" /><o:p> </o:p>

As for massive hp gains of single vs. twins I have played with both. My conclusion and advice is to go with the twins. I run a set on my Dodge and have a line for getting them on my LLY.

<o:p> </o:p>

Got Juice?
04-20-2005, 10:36 AM
dieselmaniac,



<?xml:namespace prefix = o ns = "urn:schemas-microsoft-com:office:office" /><o:p></o:p>

As for massive hp gains of single vs. twins I have played with both. My conclusion and advice is to go with the twins. I run a set on my Dodge and have a line for getting them on my LLY.

<o:p></o:p>



Awww CR@P!

Here i thought we might have 6months of up time on you!

Time to start looking in the rearview..... 'Objects in mirror are closing in fast':eek:

Kyle03D
04-20-2005, 10:42 AM
dieselmaniac,

Who’s your friend? The highest hp truck I know of is 886. (JetPilot) Several people say they have seen/heard a 1000 hp 5.9 Cummins. But until a truck can do it on the rollers it is just imaginary horsepower.

<o:p></o:p>

As for massive hp gains of single vs. twins I have played with both. My conclusion and advice is to go with the twins. I run a set on my Dodge and have a line for getting them on my LLY.


He said crank. and then you factor in that people will aways strech it. Anyway it sounds like a 600-700hp at the wheels truck.

Dyno hp is dyno hp. Numbers.....That be it.

Enterprise engine and Schied diesel are making imaginary horsepower. Thats a good one.

There are people that build motors to make dyno Hp and there are people like above that build motors to really do somthing. You better believe they're putting down 1000hp.

Single. Cheaper and Will let you sled pull where you are competetive.

Opie
04-20-2005, 11:59 AM
He said crank. and then you factor in that people will aways strech it. Anyway it sounds like a 600-700hp at the wheels truck.

Dyno hp is dyno hp. Numbers.....That be it.

Enterprise engine and Schied diesel are making imaginary horsepower. Thats a good one.

There are people that build motors to make dyno Hp and there are people like above that build motors to really do somthing. You better believe they're putting down 1000hp.

Single. Cheaper and Will let you sled pull where you are competetive.
Hi Kyle,

Your "really do something comment" cracks me up. I do dyno, race and pull. I agree with you that a single is cheaper. But I know the motors you are speaking about above are not putting out 1000 hp. Whether they put it on a engine test stand or a dyno they are not making 1000 hp. So that brings us back to imaginary horsepower. Seems imaginary horsepower has been excepted by some people in the diesel world for a couple years now.

Juice, no worries I am too back logged to modify the truck too much this year.:evillol:

heartbeatcanada
04-20-2005, 12:38 PM
Juice, no worries I am too back logged to modify the truck too much this year.:evillol:

Juice, looks like you got a target on your back ):h , and a wild west injector toting hot-rodder taking aim:snipersmi

Crawler
04-20-2005, 12:40 PM
Opz01,


Whats your background, and whats your reasoning in saying that the above guys aren't making the numbers.

Not flaming you, but I like guys to quantify (sp) their statements.


Later,
Wes

Slick
04-20-2005, 12:40 PM
I would put money on Scheid and Enterprise laying down over 1000.:cool:

Crawler
04-20-2005, 12:52 PM
So would I.


But, sometimes I like to sit back and listen to what other people think (even if I don't agree).

For example look at what the Mitchells truck has been doing with a 44,000lb sled set to max.

Right after they put the truck together with the new Rockwells; they just ran off with the sled. Its not like the operator had the sled set light. They drug the sled another hundred or so after the plate was on the ground.

No matter what the suspension or gearing is, thats a display of power.

Sheids has done well in their own right as well.

The above story on Mitchells just happens to stand out in my mind.

I know my post count may not be very high, but I've been playing the Diesel HP game for a while. Lots of people are better at it and have been working at it much longer. I just don't want you to think since my post count is in the low 100s that I'm new to this. I just spend more time working on trucks that typing about them.

None of the above is an attack on anyone or meant in a bad way. I know context is tough to convey over the internet, and I'm sorry if any of this comes off in the wrong way.

Later,
Wes

Slick
04-20-2005, 01:38 PM
Crawler, I think even though your post count may not be as high as some, you still have an excellent rep. on this board.

RUNNINHORN
04-20-2005, 01:41 PM
Crawler, I think even though your post count may not be as high as some, you still have an excellent rep. on this board.I think very highly of him......high enough that he is currently wrenching on my truck:ro) :ro) very stand up guy that knows his stuff.......

On a side note, he showed me my new 5" exhaust last night that he is installing today, I cant believe how massive 5" is, had no idea it was that big....sweet!:ro)


On another side note, once my warranty runs out, ill go to a TT setup........

Slick
04-20-2005, 02:12 PM
I think since your an LLY that a TT setup might be the way to go. Having a VVT charger, I would think it would be easier to just put a bigger one on top of it. Rather than having to change the variable vane progaramming.

Chebby03HD
04-20-2005, 02:15 PM
Well I usually stay out of threads as such, but I thought maybe I would :stirthepo a little. I believe we do have at least one member here that has produced some serious dyno #'s(and I'm not saying 500-600 is not serious either), but SD put down 795ish right? I believe that ended up turning into a pi$$in match though as to the elevation, corrected #'s, and what-not. But that was a single stock charger, granted he's pumping every possible kind of substance into that thing, regardless, it's power none the less. So imagine what a big single at almost twice the boost with all the additional "good stuff" would produce?!?! Nothing against twins either, no doubt they will make some serious power. I really don't know all the sled pullin rules/classes or DHRA rules, but it's more or less up to you as to what YOU want to compete in or do with your truck. Seems like if you want to sled pull "competitively" you need to either step up and go big, or somewhat step up and limit/restrict yourself for certain events. As for DHRA, I'm not sure on the rules, if they allow pane, N2o, etc., but again, you may have to limit/restrict yourself. From what I've seen or read this is my take....

If you want to pull (again competitely), you either stay with a single charger, #2 only and run in the Super stock class (I think that's right?)
Or you go big with twins and or a big single and throw everything under the sun at it and run in the Modified?

As for DHRA, like I said not sure on "classes", so I don't know, but I would imagine it's probably similar in one way or another?

So after all that ramblin, what's it amount to, I'm really not sure, I suppose just a statement? I'd say have fun with it, after all that's what most of us are out to do right, maybe for some bragging rights too. Say you go to a pull and run in the modified class ( only for the reason "cause you can") and place or win who knows, but at least your out having a good time doing it, the same goes for going to the drag strip. And last but not least, with all that power you can see if you could yank your trailer out from underneath your boat at 55mph!:D

OK, back under my rock I go......

ratlover
04-20-2005, 02:49 PM
For drag racing there is not limit on drugs. I personally dont see much of a reason to do anything to the charger. Just add lotsa NAAAAAAWS):h

heartbeatcanada
04-20-2005, 02:55 PM
For drag racing there is not limit on drugs. I personally dont see much of a reason to do anything to the charger. Just add lotsa NAAAAAAWS):h
Oh, but i can run 24/7 untapped air all day, any day :D and i don't have to worry about turning my bottle on or getting it up to temp, when i pull up to a porsche at the lights ):h .......................different story at the track though i guess:)

Opie
04-20-2005, 04:22 PM
Opz01,


Whats your background, and whats your reasoning in saying that the above guys aren't making the numbers.

Not flaming you, but I like guys to quantify (sp) their statements.


Later,
Wes
Wes I am just a diesel enthusiast with a primary hobby finding and fixing weak links.

<?xml:namespace prefix = o ns = "urn:schemas-microsoft-com:office:office" /><o:p> </o:p>

As for them trucks making 1000 hp. I would be happy to make that bet with you guys and I do try to make it back East to the Diesel Thunder event. Let’s get one of them trucks that supposedly only run on #2 that require starting fliud to start up and shoot fire when they shut off on the rollers. After you ask you will find out that we need to stay on the imaginary hp scale as all that will happen is excuses will be given. I don’t blame them though, why screw up the imaginary 1000 hp numbers. Especially now that so many of us are excepting imaginary hp right?


Chebby03HD Yep, I read about that reported too heavy of a correction factor you mentioned above. The 795 would be easier to believe if there was a repeat performance. Which is what I am hoping to see happen as at lower elevation it should be in the 800’s. <o:p></o:p>

<o:p> </o:p>

Back to the turbo thread, <o:p></o:p>

<o:p> </o:p>

If you want to tow, have less turbo lag, less smoke, cooler egt’s, quicker throttle response, way better sound go with twins. If you only want top end power buy a big single. I look forward to this thread being referenced by another in a year from now. And perhaps by then I will of figured out a way to keep up with Juice.

<o:p></o:p>

<o:p> </o:p>

McRat
04-20-2005, 04:54 PM
Get a big VVT! Best of both worlds. Good low end and top end, without the expense of second charger and plumbing.

dieselmaniac
04-20-2005, 05:27 PM
wow i see stating something about a 1000hp cummins has rustled up some arguements. The guy, owns moosehead motorsports in Greenville Junction, ME. The whole engine was completely custom built from the ground up and whether or not its makin a 1000hp. its still a really sick truck that i wouldn't dream of taking on with my D-max. For those of you who answered my questions thanks. Who has a twin turbo kit out and what is it runnin price wise. CRANK IT UP diesel seems to put the kits in at a reasonable rate. i will probably make an appointment with Kyle for the summer for the whole 9 yards. injectors, tranny Fass etc

sp33d
04-20-2005, 10:53 PM
And perhaps by then I will of figured out a way to keep up with Juice.
Why do I think Juice will be trying to keep up with you? :D

Got Juice?
04-20-2005, 11:44 PM
Why do I think Juice will be trying to keep up with you? :D
):h

Hummm.... interesting.

Probably closer to the truth than i want to admit though:eek:

hdmax
04-21-2005, 10:26 AM
Post count don't mean much, so don't sweat it!
I live less then 20 miles from the Mitchell shop, and I've been too dozens of truck pulls where they had 3 or more trucks pull in the Extreme class. It is not at all uncomon for them to take the top spots, one for each truck they have there.
They may not use the dyno for tuning, but I have seen 600 hp trucks, and Mitchell is is a completely different class. If there ever were a 1,000 rwhp pickup truck, Mitchell has it.


I know my post count may not be very high, but I've been playing the Diesel HP game for a while. Lots of people are better at it and have been working at it much longer. I just don't want you to think since my post count is in the low 100s that I'm new to this. I just spend more time working on trucks that typing about them.