Well maybe ill be able to find someone with a LSD that would rather have 3.9 Gears in the future... then we could just swap.....

Well Ill post in the future what happens...

 

Dont do it. A lighter fly wheel with FI is already pretty challenging to drive aorund the parking lot. Dont add shorter gears on top of that. this really doesnt make any sense for a street car. The only reason i can imagine doign these mods are for a track car specificly setup for a certain track.

 

I already have the lighter Flywheel and I already have the 3.9 Gears....

Problem is that I want F/I now......

 

Oh, in that case, what whp are you aiming at? Most of the FI kits with stock boost on this car will make 1st and most of 2nd gear tractionless, even with good street tires. You might as well keep the 3.9 gears in and see how you like them. Keep this in mind:

Power = Rotational speed X Torque

Assuming the same power output from your engine, with shorter gears you are making more torque to the wheels because more power is being used for eash rotation of your tires.

You might have to do something about the clutch, again, this depends on your power goals.

 

I have a spare DUAL disk clutch with a HP rating of 600 and my goal is 350WHP......