Quote Originally Posted by taslucas View Post
Dedication gas and turbo will make a heap of difference on either engine.
Two mates have the rb30 here, one is on 33's, stock carby and not in the best of tune, the other is on 35's with a holley and kept tuned beautifully. They both use a heap of fuel. I guess even on the bitumen here its all hills and corners.
I've found the little 3 litre loves to rev and still get good mileage, I would think that being fitted with 33s would tend to make it lug and drink juice. Did either of your mates swap to a different diff ratio to compensate, Lucas?