Modding a Series 2 3800 for a RWD application - Page 2 - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


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Old 09-29-2007, 05:24 PM   #11
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I would want to use an NA Series 2 3800, not a supercharged one.
The Isuzu 3.2 V6 in there now makes 180 hp and 180 lbs of torque. It would be nice to bump that up to 205 and 240...
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Old 09-30-2007, 12:08 PM   #12
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3800 would most definitely get better mileage
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Old 09-30-2007, 12:46 PM   #13
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Quote:
Originally Posted by brminder
If you swap the intake manifolds, can you use the FWD injectors or do you have to swap those over from the RWD too?
You can but you will only be able to mount the rail down with 3 studs. The F-Body rail as 1 stud in a different location. Plenty of people do this without issue though.
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Old 09-30-2007, 03:50 PM   #14
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Quote:
Originally Posted by brminder
I would want to use an NA Series 2 3800, not a supercharged one.
The Isuzu 3.2 V6 in there now makes 180 hp and 180 lbs of torque. It would be nice to bump that up to 205 and 240...
205/230 is the power of a stock FWD L36, 200/230 is the power of a RWD L36 from an f body
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Old 10-05-2007, 12:26 AM   #15
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Thanks for all the input on this. I'm going to do some more research and see how feasible it really is.
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Old 10-05-2007, 01:37 AM   #16
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Quote:
Originally Posted by wjcollier07
Quote:
Originally Posted by brminder
I would want to use an NA Series 2 3800, not a supercharged one.
The Isuzu 3.2 V6 in there now makes 180 hp and 180 lbs of torque. It would be nice to bump that up to 205 and 240...
205/230 is the power of a stock FWD L36, 200/230 is the power of a RWD L36 from an f body
out of curiosity where does the 5hp go?
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Old 10-05-2007, 01:48 AM   #17
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The F-body has a metal Upper, which is supposedly not quite as good at producing power as the composite upper of the FWD versions, there might also be some exhaust differences.

Look at all the variations for the 3800 even with the FWD sector, 205 for H-bodies, 200 for all W-bodies with the exception of the Intrigue which only got 195....how? Who knows.
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Old 10-05-2007, 01:54 AM   #18
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didn't know that

a bit off topic but was the non-composite also prone to failure too
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Old 10-05-2007, 12:50 PM   #19
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The f-body intake can flow better, supposedly. That is my understanding. I think you probably lose the 5 hp due to the smaller plenum size. Nothing that can't be fixed with a little cut and weld action
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Old 10-05-2007, 02:16 PM   #20
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Quote:
Originally Posted by MyLittleBlackBird
The f-body intake can flow better, supposedly. That is my understanding. I think you probably lose the 5 hp due to the smaller plenum size. Nothing that can't be fixed with a little cut and weld action
The plenum size probably isn't that much smaller since a large portion of the FWD L36'* plenum is filled with the intake runners themselves.
The RWD TB is significatly smaller than the FWD though.

I have both the RWD and FWD UIM/LIM in my garage. If anyone has any measurement questions just let me know. (except for volume stuff, that takes a while)
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