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Old 04-12-2010, 06:25 PM   #1
Jimmy Smith
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Default Rt

car runs 7.0 in 1/8 with about .440 bulb, 25" front tire, switch to 23" tire would do how much better? Thanks for looking J.Smith 4621 racing
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Old 04-12-2010, 07:18 PM   #2
63corvette
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Default Re: Rt

Moving to a smaller front tire will help with reaction time (less roll out) but how much depends on how hard the car leaves.
Every car reacts differently.
Hope that helps.
Rick
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Old 04-12-2010, 07:43 PM   #3
Jimmy Smith
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Thanks Rick, I know it will help but I am trying to get " guesstomites " as to how much to help a friend and competitor improve his RT Later J.Smith 4621 racing
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Old 04-13-2010, 02:01 PM   #4
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Default Re: Rt

1 inch = .15 .20 in rt
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Old 04-13-2010, 02:12 PM   #5
63corvette
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Default Re: Rt

Quote:
Originally Posted by JJ3159 View Post
1 inch = .15 .20 in rt
I think you mean .015 to .020.

Again it depends on the HP and the weight of the car on actually how much you will get.

My 2 Cents
Rick
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Old 04-13-2010, 03:27 PM   #6
THE LEGEND
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Default Re: Rt

Keep in mind 1 inch on the sidewall is not always 1 inch rollout.
Check your tire pressure often.
I personally don't think you will get more than a hundreth.
Chip

Last edited by THE LEGEND; 04-13-2010 at 03:28 PM. Reason: add on
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Old 04-13-2010, 03:44 PM   #7
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Default Re: Rt

switched from a 27.5" to a 26" once and didn't see much of anything
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Old 04-13-2010, 06:18 PM   #8
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Default Re: Rt

same here. switched from 28" to 26" and hardly noticed
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Old 04-13-2010, 07:28 PM   #9
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Default Re: Rt

Went from a 17" to a 19" and did not see anything in r/t or et. It has to be there but could not show it.

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