Drag Racing Tech - Help me choose tire size
04-10-2003, 09:33 PM
Hey guys, I am needing new tires and can't decide what to go with. My best is an 11.04 with a 1.44 short time. Since then I have made a few changes to help the car leave harder and also dropped some weight, and now my tires aren't holding the launch anymore. I am currently running 26x9x15 hoosier slicks on 15x8 draglites with no spacer. What size tire should I step up to? 26x10x15? 28x9x15? Something else? The best I can cut on the tires now is a 1.51 with spin. I'm looking to get back into the mid 1.4's or better.
Thanks! <img border="0" alt="[cheers]" title="" src="graemlins/gr_cheers.gif" />
04-10-2003, 10:06 PM
i LOVE the 28x9 since it is only 27.3" - nice compromise i think.
04-11-2003, 01:10 PM
Thanks guys, I switched from the stock 10-bolt with 3.23's for the 11.04, 1.44 run to a 12-bolt with 3.73's and haven't been able to get a good pass yet (best being 11.08 on a 1.51) so I don't think the slight gear reduction would hurt all that much.
I guess what I'm asking is, which way should I grow to help out my launch? Diameter or width? Would I get better results from the taller tire or the wider tire? Or should I go both wider AND taller?
Hey Joey,I have 26x10x15 ET drags and have no problems.Will a taller tire mess up any shift points?anyway your making a little more power and have a slightly bigger converter,but IMO they should work.but I guess you have to keep in mind the future mod.good luck.
04-11-2003, 06:49 PM
Well, taller and wider would help more than taller or wider, but again, it's a matter of what you want to do.
The taller tire may require some trimming, which a lot of people don't want to do. If you want the best traction without going totally crazy, I'd still have to vote for a 28x10.5 slick... You'll need to go to a 10" wide wheel for them to work 100% though, as the 8" wheel you have now would have a tendancy to not put all of the tread on the ground.
If you want to/have to stay with the same wheel, the 28x9" tire would be a good choice...
04-11-2003, 10:01 PM
I say go with general tires the next time you run me... <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" />
04-12-2003, 12:27 AM
It really depends... A 28" tire will generally provide better traction and down track stability. The extra height will also take away some gear, which may or may not be a desired effect in your case.
I had great success with M/T 28x10.5 slicks, but I've switched to a 29.5x10.5 tire now. The 28x10.5 is a "true" 28" tire, as it measures 28.1" (unlike the 28x9 mentioned above by gator). Again, that may or may not be a good thing in your case, and the 28x10.5 may require some trimming of the rear bumper as well.
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