What is the engine turning at 70mph on a 2007 S2000 with stock gearing?

 

Well for me on MY05 is about 3600rpm. Should be about the same, since i know 75mph is right on 4k.

 

 

70mph = 3700 rpm





2007 S2k

 

What about with Rick's 4.56 gear set?

 

be at 5000 haha i dont know but should be higher.. and should lose top end speed..

 

Obviously with 456s you lose top end as it makes your gears shorter for all intensive purposes. If you are turning 5k at 70 that only leaves you 3k of revs in an AP2 that would mean if 1k were 14MPH in 6th that would give you 8X14=112 would be your rev limited top speed. Assuming that calculations for the 4.56s are correct. No highspeed runs for rick aye?

 

http://www.turnzero.com/technical_resource...gear_calculator