I have a 2.5L hybrid swap with big cams and a rev limit of 7.5K using a vf34. here are my questions: will the final drive ratio suck? what top speed should i expect? and is the short gearing going to annoy me? can i expect good MPG? as far as power delivery..will it be better or worse?

i'm going the cheap route and plan to stick with the r160 rear diff. but ofcoarse swapping out the gear pinions and rings. so is the gearing of the r160 going to work with the tranny? thanks.

 

Youre not going to get great mpg with short gearing, especially on the freeway. Your top speed will probably be significantly lower.

 

Gas mileage only has to do with your right foot when you are messing with gearing. My gear ratios are lower since I changed out to RA gears and when I am going 63mph on the freeway I'm taching 3000rpm. So I drive alittle slower than everybody else and I get the same fuel mileage, if not better than before I changed it out.

I'd like to know more about the 6 speed spec C.