Re: Gear Vendors Overdrive Unit

[fasterthanu]

Re: Gear Vendors Overdrive Unit

Are any of you out there running this with a 700R4 trans? Big performance difference? I am running my 76 vette with Dual quads, full race cam, Pro Action Heads open chambered, 700R4 with 2500 stall speed, 4.11 rear end, and hooker super competition headers/sidepipes with JCL spiral Inserts. Unfortunately all of these mods are done to the original block, with 8.5:1 compression and 100,000 miles on it =P . When I raced my buddies super charged mustang, 92 I think, he pulled like 1/4 car ahead of me in first, and he opened it up to about 3 car lengths total at the end of about a 1/4 mile. Now he does have a 5 speed stick shift, and a charger, so that is a big difference. But I believe the drop between the 3.08 1st gear and the 1.62 second gear is probably what is doing me in. So, I was thinking about going to gear vendors Overdrive Unit, or possibly, the much loved 6 speed conversion =)

 

[Alwyn678]

I am just curious what you run in the 1/4 mile? Can't go worng with a richmond 6 speed

 

[fasterthanu]

well... What I run isn't the best, but it is better than the stock 1976 running 19's. I do have a traction problem, and should have a 3500 stall speed. Cam kicks in at 3500 so I am losing a little right there. I am running 13.9 with open headers, and 14.3 with the sidepipes on. I have a great setup if I had 10.5:1 compression, sure I would be high 12's =) Not too bad though for what I started with, and for doing it all with 100,000 miles on the car.

 

[AKRAY4PLAY]

if your good with the GV unit, it can shave .75 seconds off your et. i have a couple buddies that run the track a lot and this is based off of their times. Brian