Ordering New Transmission, but What Gears ?

[Rich Biebel]

Yes we did Adger....

My race partner and I became friends with a man that had a '69 Z/28. It was nearly new but was a racecar running F/S at the time. He had fully prepped the car and it had a race engine I drove it a couple times.

I was convinced he should get that 2.20 first gear trans out and I installed a 2.5 first like we ran in our car.

I was used to the hydraulic cammed engine we ran....350/295

His 302 was nothing like the 350 and would spin the tach to the moon if it spun the tires which it did. Leaving at 6500-6800 and with not much traction at our local track.....well forget about it......LOL

I also learned that the 2.5 box would not shift anywhere near as good behind the 302 at the much higher rpm...

Broke some trans parts pretty quickly with it but man that car was great fun to get behind the wheel of....

Black with white panels on the hood and trunk....black and white houndstooth interior and the cold air hood with all the stuff to go with it....except he threw some of it away thinking it was no good for racing....

The car went 12.1's in F/S in 1969 or 1970

[Aubrey N Bruneau]

I'm getting closer to settling on this. Thanks for ALL the "combinations".
Yes, it's more inclined to be a "torque engine", but it still does pull nice up at the big end.

[ss wannabee]

Aubrey...did you ever try launching it at 5000 rpm?

[Aubrey N Bruneau]

I did in Medicine Hat... but traction wasn't dependable. When it did hook, it bogged.
I don't go there any more.

Hoping for Mission in early June, but we're going on a big trip in May, for our daughter's wedding. That may stifle that particular race.

[Geerhead55]

I hope you can pull it off, Aubrey. It would be great to see you and the car again at Mission. Its one of my "must do" trips every year at one of my favorite tracks. Take care.
Danny Durham

[Dwight Southerland]

Aubrey, I would not be afraid of the 3.19 first gear. The super light clutch-flywheel assembly will allow you to accelerate the car without wheelspin. I would go with a 2.00 second and 1.40 third with the 3.19. The faster you can accelerate the car in the first half of the track, the lower the ET. Race setups have you in high gear at the eighth mark and it's just the ride from that point on regardless.

[Pvt Parts]

Originally Posted by Dwight Southerland

Aubrey, I would not be afraid of the 3.19 first gear. The super light clutch-flywheel assembly will allow you to accelerate the car without wheelspin. I would go with a 2.00 second and 1.40 third with the 3.19. The faster you can accelerate the car in the first half of the track, the lower the ET. Race setups have you in high gear at the eighth mark and it's just the ride from that point on regardless.

Yep...

[Alan Roehrich]

Originally Posted by Dwight Southerland

Aubrey, I would not be afraid of the 3.19 first gear. The super light clutch-flywheel assembly will allow you to accelerate the car without wheelspin. I would go with a 2.00 second and 1.40 third with the 3.19. The faster you can accelerate the car in the first half of the track, the lower the ET. Race setups have you in high gear at the eighth mark and it's just the ride from that point on regardless.

Yeah, that also fits in with the fact that he has changed to the correct theory on camshafts now, I'm betting he'll find more power and more RPM working with the correct lobe designs. That gearing combination will allow him to put the gains he'll make in the future to good use. Not breaking valvetrain components will allow him to race the car and learn, instead of trying to keep it in one piece and running. Racing is about to get much more fun!