Bob's Track Friends Chat

[Bob Zumbrunnen]

I'm seeing the retainer there but not a kit to change 5th gear. Do they sell it?

I downloaded their RPM calculator and .90 or .83 look ideal. More likely the .90. That'd have the car topping out close to 150 mph rather than the 200 it's currently geared for and impossible to achieve with its aerodynamics and power.

I think I know where my spare racing tranny is. Just need to dig it out and check 5th's ratio. I'm almost positive it has to be stock, but would expect it to be reinforced. If it turns out to be .68, I'll tear it down enough to see if it's got the good retainer and if it does, it'll be the tranny that'll get the .90 upgrade. It came with the racecar and (supposedly) was rebuilt by a builder who only does race trannies and it's probably only got about a thousand or so miles on it from loaning it to a nephew until he could get his rebuilt.

While I've got the tranny off, it'd be a good idea to replace the clutch. And if I'm gonna replace the clutch, a light flywheel sure does seem attractive and that'd be the right time to replace it.