Ordering New Transmission, but What Gears ?

Aubrey N Bruneau · 03-30-2014, 12:02 PM

I sold my 2.83 1st gear Jerico DR4 a few months ago ( thanks to Class Racer ! ).
Time to order the replacement.
I have the new whizzy ( for me anyway ) Advanced Clutch system now.
Obviously, my previous selection of a 2.83 1st gear was a miss-match. Most guys have told me that I need like around a 3.20. When I spoke with the guy at Jerico, he recommended no more than 3.08. His reasoning being, that the engine doesn't rev high enough. Sounded logical. Engine makes peak torque at 4500/4600 RPM

Car scales at 3635
Shifted at 7000
Thru traps at 7200 / 7300
Best previous 60 ft was 1.59

03-30-2014, 12:02 PM	#1
Aubrey N Bruneau Member Join Date: Sep 2003 Location: South Eastern Alberta, Canada Posts: 311 Likes: 6 Liked 7 Times in 3 Posts	Ordering New Transmission, but What Gears ? I sold my 2.83 1st gear Jerico DR4 a few months ago ( thanks to Class Racer ! ). Time to order the replacement. I have the new whizzy ( for me anyway ) Advanced Clutch system now. Obviously, my previous selection of a 2.83 1st gear was a miss-match. Most guys have told me that I need like around a 3.20. When I spoke with the guy at Jerico, he recommended no more than 3.08. His reasoning being, that the engine doesn't rev high enough. Sounded logical. Engine makes peak torque at 4500/4600 RPM Car scales at 3635 Shifted at 7000 Thru traps at 7200 / 7300 Best previous 60 ft was 1.59 __________________ Aubrey N Bruneau 6409 C/S 62 BelAir sport coupe, 409 HP 409