Twins on LBZ - Diesel Truck Forum - TheDieselGarage.com
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post #1 of 22 (permalink) Old 09-24-2007, 11:53 AM Thread Starter
fordt
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Twins on LBZ

Anyone running twins on their LBZ? I am shooting for about 550HP, figured twins would be the best bet, drivability wise. Not sure how long the stock turbo would last at that #? :
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post #2 of 22 (permalink) Old 09-25-2007, 12:52 AM
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With EFI live shouldn't you be able to get close to 550? How "undriveable" would a tune like that be with an auto??
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post #3 of 22 (permalink) Old 09-25-2007, 02:24 AM
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Wayne, I'd keep your goal to 500rwhp until you have a serious heart-to-heart with Merchant. 550 is really starting to push it with the stock internals, even the "upgraded" LBZ stuff.


A well-thought-out 550rwhp tune, with a proper trans, could be a nice driver. I know Tony has some tunes out there that are very smooth at those power levels. Heck, Keith drives around on his big tune every day.
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post #4 of 22 (permalink) Old 09-25-2007, 08:11 AM
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My truck runs well hehe.

Devil Girl 2006 2500HD LBZ Ex-Cab 4x4

EFI Live tuned by IdahoRob,MPI twins installed by BigDipper,PPE lift pump, BigDipper 30% injectors, BigDipper Trans Precion ML converter.PPE Twin Cp3's.

Alot Of thanks To Kat & Pat at duramax diesels, Joe & Dan at PPE,George aka BigDipper
RIP LBZ 6/1/[email protected]:44pm she was strong

She's Alive again

Born on July 27, 2008, 11:59:02 PM

http://www.dieselbuilder.com/Media/P...adoBuild_2.pdf
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post #5 of 22 (permalink) Old 09-25-2007, 10:12 AM Thread Starter
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I was not sure how long the stock turbo could last at 500hp, so I meant "drivability" of twins rather than a bigger single. OK, so no turbo for now(won't hurt my feelings ). Remember, I am still use to Fords , 500hp is BIG goal in that world, not so much with a Chevy. :
post #6 of 22 (permalink) Old 09-25-2007, 10:34 AM
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Make 500 with the stock LBZ all day long with a good efi live tune or ppe tune, egts werent that bad on my truck with the stock turbo towing on the high tune, just need a built trans and fuel pump.

Devil Girl 2006 2500HD LBZ Ex-Cab 4x4

EFI Live tuned by IdahoRob,MPI twins installed by BigDipper,PPE lift pump, BigDipper 30% injectors, BigDipper Trans Precion ML converter.PPE Twin Cp3's.

Alot Of thanks To Kat & Pat at duramax diesels, Joe & Dan at PPE,George aka BigDipper
RIP LBZ 6/1/[email protected]:44pm she was strong

She's Alive again

Born on July 27, 2008, 11:59:02 PM

http://www.dieselbuilder.com/Media/P...adoBuild_2.pdf
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post #7 of 22 (permalink) Old 09-25-2007, 11:52 AM Thread Starter
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Just waiting on winter to come after the parks shut down, then head to Merchant for some work

Trans
EFI installed
FASS
post #8 of 22 (permalink) Old 09-25-2007, 03:49 PM
 
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the way to do it is,built trans,Lift pumps,EFILive or PPE=500+rwhp.
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post #9 of 22 (permalink) Old 09-25-2007, 05:15 PM
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I wouldn't push the LBZ rods over 650 rwhp. On the dyno 500-650 rwhp came really easy, but it was slow going from 650 to 700rwhp on the dyno when I had a stock lbz shortblock in my 2002. The LBZ pistons seem to be a roll of the dice. I had one let go dragracing at 700rwhp but others had problems with less power and others haven't had a problem at all. My current setup in my signature below is the original 2002 LB7 motor and LB7 pistons with some bowl work from SoCal Diesel.
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post #10 of 22 (permalink) Old 09-25-2007, 05:40 PM
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Wendy has been at 530rwhp for the last 15000 miles with no problems.
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