wheelie bars!
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63vette;275078 wrote:
How high is the wheeliebar wheel centerline?Its set with the bottom of the wheelie bar wheels about 6" above the ground, but the height is adjustable (obviously). I didnt measure to the center of the wheels.
DaveH
'94 Supra- 7.77 @ 176mph -
DaveH;275081 wrote:
Its set with the bottom of the wheelie bar wheels about 6" above the ground, but the height is adjustable (obviously). I didnt measure to the center of the wheels.How long of a wheelie bar kit did you put on it?
Are you shooting for a dead hook or a couple turns on launch?
If its under 36" your initial height may be a little high.The drivers wheel is typically 1/4" higher than passenger side. You can roughly figure out your front tire rise by dividing your wheelbase by the distance from your rear contact patch to the wheelie bar wheel and multiplying by the height of the bottom of the wheelie wheel -2" for sidewall crush (on a big slick) and subtracting the front suspension drop. So if you are running a 36" wheelie bar with a wheel height of 6" with 106" wheelbase on a car that limits front suspension drop to 5"...
Front contact patch height with 36" wheelie bar :
106" / 36" = 2.94"
(2.94" x (6" - 2")) - 5" = 6.76"Front contact patch height with 24" wheelie bar :
106" / 24" = 4.42"
(4.42" x (6" - 2")) - 5" = 11.68"My roadster was 109" wheelbase with 72" wheelie bar and wheel at 6" with 3" front strut drop :
109" / 72" = 1.51"
(1.51 x (6" - 2")) -3" = 3.04That's how it worked out in my head for S/G and S/C cars anyway. I was really just curious how you determined the initial starting point.
Slow day at work...The only one way to get it right is spray chalk.
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Its a 60" wheelie bar kit. I'm guessing i'll want a couple rotations at launch, but no sure on that. i just took a guess on the initial wheelie bar height, but i'll run ou calc and see what that says. My wheelbase is 98.5", i have the front wheels limited to 3/4" extension right now (trying to lessen the wheelies). Not sure if i should take the limiter off and let front wheels drop or leave it as is. We'll def b e using the wheelie bar chalk to see how its hitting the ground.
63vette;275084 wrote:
How long of a wheelie bar kit did you put on it?
Are you shooting for a dead hook or a couple turns on launch?
If its under 36" your initial height may be a little high.The drivers wheel is typically 1/4" higher than passenger side. You can roughly figure out your front tire rise by dividing your wheelbase by the distance from your rear contact patch to the wheelie bar wheel and multiplying by the height of the bottom of the wheelie wheel -2" for sidewall crush (on a big slick) and subtracting the front suspension drop. So if you are running a 36" wheelie bar with a wheel height of 6" with 106" wheelbase on a car that limits front suspension drop to 5"...
Front contact patch height with 36" wheelie bar :
106" / 36" = 2.94"
(2.94" x (6" - 2")) - 5" = 6.76"Front contact patch height with 24" wheelie bar :
106" / 24" = 4.42"
(4.42" x (6" - 2")) - 5" = 11.68"My roadster was 109" wheelbase with 72" wheelie bar and wheel at 6" with 3" front strut drop :
109" / 72" = 1.51"
(1.51 x (6" - 2")) -3" = 3.04That's how it worked out in my head for S/G and S/C cars anyway. I was really just curious how you determined the initial starting point.
Slow day at work...The only one way to get it right is spray chalk.
DaveH
'94 Supra- 7.77 @ 176mph -
When is this hitting the track this year? I would like to come up and watch it run.
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DaveH;275139 wrote:
Hoping it will be ready for the opener on the 30th, 31st of may.Theres a local car show I have a couple cars attending in on the 30th but I can make it on the 31st.
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didn't think you would do this yet, butits prolly a smart move
Monty
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