If your motor is still making power @ 6800, good for you!

Just trying to help out....

 

I know thanks. The interaction of tire sizes, gears and stall are a little confusing.

 

build it around a 28" tire

 

Then I'd have to tub it. 28's won't fit in there will they?

 

Bingo. Selecting gear/tire ratios should be based off of max rpm, peak hp rpm, and tranny ratios.

 

Unfortunatley I can only base rpm/HP/tq on speculation and desktop dyno. Maybe I can get someone to break it in and dyno it before I get it in the car.

 

With my set up I cross the line at about 6800-6900and I definatly have 3.70s with a 28in tire but its a heavy car thats under geared and still pulling at 6800. I know i need 4.10s but that would shoot me immediatly into the 9s.
I think with 4.10s your going to definatly cross the stripe ( in the 1/4) about 7200

 

Negative.. Im putting 28x10.5's . BFH and trim / rolled lip of fender

 

Ahhh. thanks.

 

ok cam specs


Camtec grind

Lift:
Intake 328 at cam 567
Exhaust 328 at cam 567

Duration:
Intake 294 Advertised 234 at 50deg cam
Exhaust 294 Advertised 234 at 50deg cam

Valve timing at .50 cam lift:
Intake opens 13 Closes 49
Exhaust Opens 49 Closes 8


Timing number indicate 4deg advance 164deg intake C/L