Blown, injected, 4-valve CJ's at Ennis...

[Mike Gray]

Originally Posted by Chad Rhodes

we know these guys are playing the system, we're using MPH to try and figure out HOW MUCH they are playing the system

How Much? - My super-gas '69 mustang would run about 110mph in the 1/8 and it was capable of 9.40's in the 1/4. My car was lighter but by the 1/8 mile they already have that extra mass accelerating faster, how much difference would there be in the second half?

[ALMACK]

Originally Posted by Mike Gray

How Much? - My super-gas '69 mustang would run about 110mph in the 1/8 and it was capable of 9.40's in the 1/4. My car was lighter but by the 1/8 mile they already have that extra mass accelerating faster, how much difference would there be in the second half?

Your car should run 146 mph in the 1/4 based on a 110 mph 1/8th.

There is a post on another forum where everyone posted both their 1/8th and 1/4 mph and I did the calculations. (Post # 64) Those are real world numbers.

1/8th mile per hour is usually ( but not always) 75 % of the 1/4 mile mph. In the last 200 feet of the 1/4 mile track, I would venture to say the rate of gain noses over, a bunch.

I study speed and distance as well as rate of gain ( as a hobby) in drag racing.

Anyway, here is a copy of everyones % of mph gain from the 1/8th to the 1/4 :

25.4 %
25.4 %
26.1 %
25.8 %
26.2 %
23.7 %
24.9 %
26.1 %
28.0 %
36.9 % ...?????
23.4 %
27.2 %
22.0 %
26.5 %
23.9 %
22.0 %
25.2 %
25.4 %
31.9 %
25.0 %
26.0 %
31.1 %
31.2%
32.7 %
24.4 %
26.0 %
29.9 %
24.5 %
15.8 % ...???
24.8 %
22.6 %
26.2 %
21.6 %
31.9 %
25.8 %
29.5 %
21.1 %
27.6 %
Here's the link:
http://www.yellowbullet.com/forum/sh...ad.php?t=72186