would you twin turbo a 4x4 or not & why?

[csutton7]

what are your thoughts on this? Lower egt's & power are a couple of +'s and not too many guys have done it. Besides the initial outlay of $$$ what are the downsides to this set-up. If all things being equal what do you think you'd gain by going to the twins vs. the single turbo. Are you jeopardizing your engine life or drivetrain. pros & cons. let's hear it.
why you ask well why not? I'm curious. I've done searches but there is not a lot of info out there. ----chris

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chris sutton
1999 2500 qcab longbed 4x4 red sport w/ all the options 'cept plow pkg, 4:10 detroit locker in rear & front ARB,
5" skyjacker lift w/ 35" BFG mud terrains on 16. 5x9. 75 Weld rims, black smittybilt nerf bars, black 3 pc. bug persuader,
black lumber rack, camel leather int. w/ mb quartz spkrs and 8" sub, power edge EZ, DTT vb & tc, mag hy-tec transmission pan,
red magview diff covers & coming soon: 275 injectors, red L&L ladder bars, turbo temp monitor & guages on "A" pillar

 

[OO]

Because it's there #ad
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[Deezal Man]

I admit, I'm not entirely sure I understand where you are coming from on this. . Do you have experience with twins on a Diesel?? What benefit did you see over the use of a single?

Are we talking street form or racing?
The guy pulling a 10K lbs 5'r, has different needs than a guy who hopes his truck stays together for the next 15 seconds at the track.

I ask, because I find most people simply don't understand exactly how twins differ from singles, and what benefits they "can" provide.

You ask what I think... I think it'd be a huge waste of money for anyone who uses a truck like a truck.

We are talking about their use on a Diesel, right?

------------------
98. 5' 24v 2500 Auto/3. 54 4x4 SB QC 285-75-16's on Alcoa's. Everything but leather. PIAA 1200's, AMSOIL dual filter relocation system, Smittybuilt Stainless Steel Nerfs, Rhino Liner(Junk), K&N air filter(For Sale)15 year AMSOIL dealer. Time permitting, Soon to include Ultra-lite Pyro,0-50lbs boost, Trans temp in the pillar. Rancho 9000's with in cab adjustment.

 

[BigCarl64]

If a vendor offered a kit, I would purchase it. I know Sportbike has been experimenting with the twin turbo setup, maybe he can add to this thread.

 

[csutton7]

Deezal Man-no experience at all with single-double-triple-etc... . turbos... basically my question is; is it smart or stupid for the guy who uses his truck everyday as a work truck--not much towing--some hauling lumber and such--some 4 whl'n--to go twin or go the normal route of single w/ a combo of the upgrades that are available to us--- I've had my truck for 1. 5 yrs and love it and now the bug of BOMB is in my shorts--and I want a rod(for puttin' the wannabees in their place--behind), a 4 wheeler and great running powerful truck---but I want a truck that will last also and that is very important. I know you can use most if not all of the same upgrades with twin as you would a single, so you can't let money enter the equation or you'll cry-just a little. Do I need twins, of course not, as the single w/upgrades will probably do it for me, but in the world of BOMB is a single the best or a twin & why??? chris

 

[HVAC]

The only twin setup available at the moment is from Dave Mitchell for $4,000.

Sportbike's setup is still experimental, more R&D is necessary before it's working properly.

We can exceed the 600 hp mark with a single, that ain't bad #ad



---------------------------------------------
Nowel/Performance Diesel

[This message has been edited by HVAC (edited 02-22-2001). ]

 

[TomGolden]

Maybe also get in touch with Adam [My 6 Eats V8's]. I think his truck is a 4x4, and I've seen several of his posts where he talks about a twin setup, though I do not know if he has ever done one. He also does pulling with his truck, but I don't know if he uses the same monster Ram for daily driving. I haven't met him yet, but look forward to doing so #ad


Tom

 

[Briar Hopper]

The twin turbo setup that Dave Mitchell has, is on a 2500 2WD converted to a dually. He uses that truck to pull a trailer carrying the famed white monster to pulling events. He told us he pulled 17,000lbs up Jellico Mtn. (in east Tennessee) at 80 mph.
He took a few of us for a ride, it was awesome.
Benefits? I suppose if the bigger turbo "huffs", the smaller turbo will catch the pieces, and you won't need some expensive work on the head... had a friend express that viewpoint to me.
Biggest benefit would seem to be elimination or reduction of turbo lag, which is mostly beneficial only on the drag strip, or meeting a PSD at a stoplight...
True, like HVAC says, you can easily hit 600HP with what's available now.
I don't see a problem with putting twins on a daily driver, if you also use it at the track or the sand dunes...
The additional HP/benefits do not match up to the cost of doing it, unless you can get it done cheaply.

------------------
Tom
Secretary of the Great Lakes Turbo Diesel Registry GLTDR B. A. D. Boys

 

[Hombre]

What everyone seems to be forgetting is there is not a problem with EGT'S with twins... . Daily diven or pulling, no EGT probs. Sure sounds good to me... ... ... ... .

 

[Blkdawdg]

I know that enterprise offers a kit for the dodge cummins. However, don't try to ask about what they use because they are extremely hush-hush. But they say that there are ABSOLUTELY NO EGT PROBLEMS, which means that you can fuel the sh*t out of it and you will not exceed the limits of the engine. The only problem is the cost. But I'm actually going to get one within the next six months so I'll report as soon as it's all in and working.

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2001 ETH SWB Black Sport, Blue Box, HX-40, 4" Exhaust, DD III's, RE-0880, ATS Manifold, Muth Signal Mirrors (way cool!) Too MUCH Stereo, Clifford Avant-Guard 4 w/ Remote Start, 2" leveling kit, Grizzly Nerf Bars, Pathfinder 315's, Ram Grill Guard, BLACK magic hellas, Dual firesticks, and one loud, annoying PA

 

[My 6 Eats V8's Old File]

I'm eventually going to get "them" #ad

its mostly for egts for me, it the only way to get enough air in thar to keep egts in check, then I can add more fuel. #ad

I do drive my truck daily when its not broke, seems to be common for me. Its also sitting here patiantly waiting for its new auto transmission, maybe next week.
benifiet of twins is you double your air intake and keep both turbo's in there designed realms, basically you can run two turbos at 32psi and get 64, with no back pressure and very little lag. If you had a big enough turbo(single) to do that lag would be unacceptable. It seems to have no other drawbacks, well other than price. I'm still saving. it'll be a wile. till then I still have my hx40 with the 16 housing limited to 45psi.

 

[SandDemon]

The main reasons (that I know) to go with a twin set up are:

-Having a sequential turbo set up allows a wider boost range. i. e. 1 turbo makes good boost from idle to 1500rpm, the other kicks in after that. So you can have a huge high end turbo and not loose bottom end. Great trick, absolutely no lag!

-Easier install on multiple cylinder banks.

I would say tha unless you're looking for oodles of power (600+hp) 1 turbo and some goodies will be fine.

Jeff

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2001. 5 ETH/DEE 2500 4x4 3. 54 lsd. 33' Weekend Warrior 5er and an army of toys to fill it!
'96 1500 360 3. 90 LSD 3" cat back no muffler! 110,000 and still eating chebbys for lunch!

 

[NVR FNSH]

you guys are referring to sequential turbos, correct?

Brian

 

[My 6 Eats V8's Old File]

I was. #ad

 

[David_VT]

4x4 and TWIN TURBO... hmmmm
Isn't the 4x4 there just so you can get more traction off the line and thus better times on the strip??

Surely you would not take that much power off road would you? #ad
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How much do I have to save to get Sportbike's setup?? With a real clutch almost in the truck, it is time to start thinking about the next level

 

[JR2]

David,
Send Sportbike an email, I am sure he would be happy to give you a quote. He gave me one, I just don't want to post it because I don't know if he wants the price out there.

I am wondering if I get an HX40 now, can it be adapted to the dual turbo set up later if I so desire?? Heck I desire now, I just can not justify it now.

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John D. Rathert Jr.
*************************
01 2500 Forrest Green Sport SLT+ QC LWB 4x4 Auto 3. 54 rear end with all options avail. DC Nerf Bars, DC Grill Gard, DC mud flaps, Line-X bed liner, Leer 160XL Topper, Power Edge, EZ Edge, SPA Boost/EGT Gauge on pillar mount, DDT's tc/vb combo, 275 RV injectors, DD 4" Exhaust and a KN RE0880 where the air box use to be. New turbo (HX40), SS fuel lines and bigger injectors in planning stages... . See My Truck, Dads truck: 98. 5 3500 SLT QC LWB 4x4, Brother Truck: 92 W250 SLT CC LWB 4x4 (Dads old truck) Winter fun - 2000 Skidoo Summit 700
*************************

 

[David_VT]

JR2, good idea, sending it to him now, thx
UPDATE:
Darn it, his EMAIL address is not on the forum. I know he has emailed me before, but I changed my email software and lost all my old emails. SPORT BIKE, if you see this please drop me an email. Thank you!!

[This message has been edited by David_VT (edited 02-25-2001). ]

 

[HVAC]

The (Sportbike) twin system isn't available at this time. Check back in a month or so.
More R&D is necessary.
-------------------------------------------
Nowel/Performance Diesel



[This message has been edited by HVAC (edited 02-25-2001). ]

 

[sport bike]

David VT,Tried to e-mail you but it came back undeliverable. If you have a different e-mail address,let me know. jmf1223@msn.com

John/SP

 

[David_VT]

SPORTBIKE,
thx, I sent you a response