I run on a 3/8 paved circle track,and was curious if someone could tell me what kind of an RPM gain That I can expect form switching form a 3.55 gear ratio to a set 3.70's.I am currently revving at 4400 in second gear (c-4) at the end of the straight's,but am lacking a little pull if anyone gets beside me.Most likely have better hold back in the corners as well I would think.Any help would be appreciated.

 

multiply your rpm by 1.04 for the ratio change from 3.55 to 3.70

 

You mean to say that I will only get an increase of around 175 more RPM's?Hmmmmmm,that's very interesting,I thought for sure it would be quite a bit more,like 400 hundred or so.Oh well,what do I know,Thanks very much for the reply.Does that number work with other trannies or just the c-4's?

Thanks for the reply.

 

3.70 divided by 3.55 is 1.0422535211

 

We've been trying to figure this out for a little while now,and just did not have a clue.Thanks very much for the info and the replies,this will help us immensely.Looks like 3.70's,here we come.I will keep you guys and whoever else is interested,informed cause I am gonna try this weekend.I wanna finish first rather than in the top five or six.