[Keith Seymore]

Originally Posted by Mike S

I am trying to figure out why my mph seems low for my et, I attached a time slip from Saturday. The run after the one attached was a 1.325 60' but had to lift. The one attached was all out.
I have the car set up to go 10.0. Weighed the car Saturday and was 3400lbs with 280lbs of ballast and me. I have 4.10 gears with a 30" tire and cross the strip at 6600 and a 5000 stall converter launching with a trans brake at 3800.
Do you think I should look at a bigger cam to get more top end? Or maybe a 3.73 gear?

My car is on the left B153

Got him on the tree. Well done, you.

I have a couple observations:

1) It looks to me like your car 60 fts really well. My 10 flat runs are in the 1.40 - 1.42 range (foot brake). So you are making good time on the low end of the track and flattening out on the top end.

2) Light cars take less HP to make good ET. Conversely heavy cars take more HP, which I think results in higher MPH at the end. I'm at 3820 lbs with me in it (and would give my left [insert body part here] to be at 3400 lbs). My car is closer to 134mph and maybe as high as 136 to go 10 flat.

3) I don't think it matters. If you are hitting the ET you want then who cares about MPH, other than to compare your runs to yourself. I wouldn't bother comparing my MPH to other folks (...although I just did... )

Just my $0.03.

K

[Mike S]

I am taking 2 degrees out in high gear. going from 36 to 34 in third gear. Having one time shot and going right into eliminations doesn't give you any runs to play around with the car.
I am going to check the timing this week to make sure it is still at 36.

[Mike S]

455 .060 over. E heads that flow 330 at .700. comp it 12.0-1. Victor intake. 850 Holley. Ran faster with the 1050 but decided to use the 850 to slow it up instead of restrictor plates. Cam is a solid roller 282/286 at .050, .660/.662 lift. ground on 108 and installed straight up. 2" headers into a 3.5 x pipe and dyno max mufflers.

Car has all stock suspension.

[Stan Weiss]

Originally Posted by Keith Seymore

Got him on the tree. Well done, you.

I have a couple observations:

1) It looks to me like your car 60 fts really well. My 10 flat runs are in the 1.40 - 1.42 range (foot brake). So you are making good time on the low end of the track and flattening out on the top end.

2) Light cars take less HP to make good ET. Conversely heavy cars take more HP, which I think results in higher MPH at the end. I'm at 3820 lbs with me in it (and would give my left [insert body part here] to be at 3400 lbs). My car is closer to 134mph and maybe as high as 136 to go 10 flat.

3) I don't think it matters. If you are hitting the ET you want then who cares about MPH, other than to compare your runs to yourself. I wouldn't bother comparing my MPH to other folks (...although I just did... )

Just my $0.03.

K

This what I have found also. When a car 60' really well, it will normally not run its best MPH.

Stan