How do I figure this out, its all foreign to me. I have a 10" TCI torque converter. One of there cheap off the shelf ones. I think its the super street fighter. Anyways I am going through the traps around 5200 rpms at 110 mph. According to all the gear calculators 110 mph with a 3.08 gear and 26" tall tire the rpm should be 3200. I don't know how to figure this stuff out but isn't that a lot? How much trap mph do you think I am losing from this? or would I be gaining mph from a loose converter?

Originally posted by 66chevyIISS:
According to all the gear calculators 110 mph with a 3.08 gear and 26" tall tire the rpm should be 3200 That is NOT correct..you might want to recheck those numbers.As a reference,I run 2.73 gears w/a 26" tall tire and I cross the stripe at 4100 rpms at 101-103 MPH.

oops your right! its 4400 rpms so I guess thats not as bad as I was originally thinking, but thats still not great is it?