Quote:
Originally Posted by NoHaveMSG
It will be situation dependent. Running on street run what you like. Assuming stockish K24 with around 76-7800rpm redline I think it will be too low. I know it is a bit too low at 2 of the 4 major NW tracks with an FA20 as is.
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Well my reasoning is I just want redline to be 60mph in 2nd gear, so if I punch in these numbers:
4.56 FD
24.7" Tire Height
2.18 2nd gear ratio
8100-8200 Redline (This is a safe/conservative redline for a k24a2 with type S pump and 50 degree vtc from everything I have read but I could be wrong!!)
This gives me 59.9-60.64 mph top speed in 2nd gear at redline so seems like the 4.56 is absolutely perfect.
Of course the other option I am considering is the 4.3 from a 2017+ which would save me a lot of hassle of figuring out the best 4.56 gear package to select.
Either way I want to do gears 100% as I will be getting an OS Giken Super Loc LSD installed at the same time.