What final drive ratio are you running on your f/I car

[cali chase]

Just curious to see what people are running and their thoughts?

[SliM3]

Really glad you asked this question! I’ve been seriously thinking about picking up an m5 3.15:1 ring/pinion, but wanted to get some opinions first.


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[cali chase]

Really glad you asked this question! I’ve been seriously thinking about picking up an m5 3.15:1 ring/pinion, but wanted to get some opinions first.


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im sure it depends on power level, and application, but I was also debating jumping down

[Cglhut]

I picked up a OS Giken and a set of 3.15 gears that I had REM polished. 3.15 are the best for high power cars, I plan to put down 900+whp.

[SliM3]

I picked up a OS Giken and a set of 3.15 gears that I had REM polished. 3.15 are the best for high power cars, I plan to put down 900+whp.

Good deal!
I said “what the hell” and pulled the trigger on the 3.15s as well. Should be a good combo with the DKM twin disc and square 18’s
On that note what do you guys think: yea or nay on upgraded year axles?

[Cglhut]

Good deal!
I said “what the hell” and pulled the trigger on the 3.15s as well. Should be a good combo with the DKM twin disc and square 18’s
On that note what do you guys think: yea or nay on upgraded year axles?

Depends what you plan on using the car for. If it’s going to see any time at the drag strip I’d say do axles and driveshaft. If it’s just going to be a street car that you may take to a couple 1/2 mile events you could get away with stock axles. I plan to do gforce axles and custom 4in driveshaft just because my whole car is torn apart. I’ve heard some guys going with just axles to help with wheel hop, but at that point you may as well do the driveshaft too.

[Rudbari]

I had 4.10 with Ess supercharger and 1st and 2nd were not nice so I switched back to 3.62 .

did some draggy to compare :

With 4.10 had 8.1 sec in 100-200 km
with 3.62 had 7.8 sec in 100-200 km