front tire size worth in delay

[Ed Wright]

Originally Posted by treessavoy

Stock drivers are known for the quickest and consistent reaction times and most of us run tall tires.

Really?? First time I've heard or read this. The only National Dragster I have on hand right now has E-Town sportsman coverage. I averaged the Comp, SS and Stock elimination round reaction times. Comp had 8 red lights, average reaction time was .0675. (Wonder why Fletch and Biondo do so well there.) SS had 4 red, average reaction time was .0335, Stock had 3 red, average was .0448. The .90 classes, of course, killed us all. Should with all the crap they have on those cars. I can't see why foot brakers would have any advantage, from what I have seen S & SS are normally pretty close in that dept.

[treessavoy]

Originally Posted by Ed Wright

Really?? First time I've heard or read this. The only National Dragster I have on hand right now has E-Town sportsman coverage. I averaged the Comp, SS and Stock elimination round reaction times. Comp had 8 red lights, average reaction time was .0675. (Wonder why Fletch and Biondo do so well there.) SS had 4 red, average reaction time was .0335, Stock had 3 red, average was .0448. The .90 classes, of course, killed us all. Should with all the crap they have on those cars. I can't see why foot brakers would have any advantage, from what I have seen S & SS are normally pretty close in that dept.

Yes, I forgot to add SS racers to the mix, my point is that "footbrake" racers work harder on their packages than electronics guys and most of the stockers and some SS'ers run tall tires. I run 29" moroso's and when in practice I have run O's and OO"s with them, so how does a tall tire hurt me vs a small tire?

Jim R

[Ed Wright]

Originally Posted by treessavoy

Yes, I forgot to add SS racers to the mix, my point is that "footbrake" racers work harder on their packages than electronics guys and most of the stockers and some SS'ers run tall tires. I run 29" moroso's and when in practice I have run O's and OO"s with them, so how does a tall tire hurt me vs a small tire?

Jim R

I run the tallest I can get under mine. I have had several 00s, if your over .030 in SS at a div race around here your usually going home. Too many Emmons, Cumings, Helms, etc. I can't seem to get off Slate's side of the ladder. That kid kills the tree.

[chevy620]

Lay a board in front of the tire and one behind it at say, 30 psi. Measure the distance between them. Lower air to 22 psi and do it again with boards. THat is change in physical roll out.
Go to the pits and ask some guys if you can measure that same thing on some different tires.

If I was looking for a solid .01 (which I was with Camaro) I would look for 1" to 1.5" wider gap in the boards. I went from tall Moroso to 26.5 M/T and it was about 1.5" at 26 psi. Haven't been red since but then again....I have been late a few times.

I still feel it is best to find a "spot" you like to leave at and you are consistent at, then work on the car to use that "spot".

A lot of guys on here have done this more than me but we are getting better every time out. I just keep running into guys who crush a .006 light and run the number...I know my day is coming, just have to keep working on it.

Good luck in your tire search.

Jok