Hi all, we just had a test and tune session at our local airport for 1/8 mile, we had cement burnout boxes vht and lights for single runs. I ran a 6.48 in the 1/8th, can anyone tell me what that converts to in 1/4 mile. I can,t find last years time slips, thanks Tim

A 6.45 should be a 10.06 and a 6.5 comes out at 10.14 so flip a quarter and you decide.

Multiply by 1.58 should be pretty close.

6.48 X 1.58 = 10.24

Thanks guys, there were traction issues, I,m just hoping I,m not in the 9,s at real strip as I just don,t want to go there yet, tim

1.59 was the formula i was told to use

What was your MPH?

We had no mph, this only did times and you had to reset after every run, but we did discover that in the future our local airport will work.

Different cars will have different 1/8 to 1/4 ratios. But 1.57-1.59 should cover it, if the car was working properly.

Every car is different in actual Times for instance mine is 1.575 will be bang on.
I think NHRA uses 1.56 anyhoo NHRA says that at 6.39(or 9.99)for license and cage

I just ran 10.59 (1/4) & 6.70 (1/8th)

6.70 * 1.58 = 10.586

I ran 6.42 1/8, 10.22 1/4, 1.41 60ft

mine is --- 1/8 6.388 107.40 --- 1/4 10.082 132.02

I should be okay then unless there is a tail wind, thanks tim

10.15-10.25

swingin is right its all about they way you have your car set up. If you have it geared where its making power on the top end your going to be on the slow side 1/8th mile wise, if you have the valves set for low end power, well your going to be fast on 1/8th mile, gearing, valve setting and others will play a big roll on how fast you can go in 1/8th mile.
My roadster went 9.20's all the time on quarter mile, but when i went to Pacemakers i was running 5.80's and 5.90's which is in the 8's so........

Just my 2 cents

Here's a vid I found of Tims' car, from the past weekend.



http://www.youtube.com/watch?v=rSS4NGK-lCs

According to the 1.58 theory a 6.19 shows 9.78 and I ran 9.85 so its not too far off.