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3.86 Final drive connected to a stock 2.5?

M

montrese04

Veteran CEG'er
Joined
Aug 11, 2008
Messages
835
Location
Indianapolis, in
i see a bunch of responses for the 3L and how the 3.86 is better for it, but what about the 2.5L engine.? How would the driving be?
 
Basically you would gain some top speed for each gear but the 2.5 has less tq/hp so in my opinion the acceleration might be slightly less. I think it would be a very slight difference, but considering the high rpm nature of the stock engine the 4.06 fd would keep the rpms in a more optimal range compared to a lower fd.
 
montrese04 said:
No one has an opinion of how the acceleration or top speed will be with a stock motor + the final drive (3.8) swap
Click to expand...
the euro V6's, including the ST200 have a 3.84 as stock. The ST200's top out at 142mph (17" rims)
and are as quick as the SVT's. The SE's equivelent, the ST24 (16" rims) does 134mph.. more if you SVT lite it. .... G.
 
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