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05-17-2018, 11:16 AM
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#1 |
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Member
Join Date: Apr 2006
Posts: 248
Likes: 7
Liked 42 Times in 17 Posts
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Re: Front tire pressure adjustments
ok this is gonna sound stupid but try ankle weights used them on my stick super stocker was going 10-15 red try 5pd weight
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05-17-2018, 02:44 PM
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#2 | |
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Senior Member
Join Date: Jan 2008
Location: 100th Meridian
Posts: 569
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Liked 280 Times in 139 Posts
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Re: Front tire pressure adjustments
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05-18-2018, 05:00 PM
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#3 | |
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Senior Member
Join Date: Dec 2008
Location: Berthoud, Coloraduh
Posts: 695
Likes: 13
Liked 8 Times in 7 Posts
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Re: Front tire pressure adjustments
Quote:
__________________
without losers,winning means nothing. |
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05-18-2018, 06:03 PM
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#4 |
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Senior Member
Join Date: Mar 2002
Location: Woodburn, Or
Posts: 685
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Liked 805 Times in 245 Posts
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Re: Front tire pressure adjustments
I would think there is grounds to consider that the whole front tire pressure affecting RT's might be somewhat of an urban legend. As a test, I put my car on a flat floor in the shop and put a 3" block in front and behind the front tire at the 40PSI that I normally run and measured the distance between the blocks. I then started lowering the pressure in increments and remeasured the distance. I got all the way down to 15 PSI (which I thought was probably an unsafe pressure to actually race at) and the distance between the block had barely changed. Maybe the 3" height wasn't quite right but it has to be pretty close to the correct height for the photocell. Based on that, I kind of wonder if the real life change in RT is in the drivers head and not a result of the rollout. If you doubt my test, try it yourself.
Jim Caughlin SS6019 |
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05-18-2018, 06:08 PM
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#5 |
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Member
Join Date: Apr 2014
Location: Mesa, AZ
Posts: 497
Likes: 162
Liked 223 Times in 73 Posts
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Re: Front tire pressure adjustments
Someone has a detailed mathematical analysis of this online that reached the same conclusion. I think you need to focus on other parameters rather than tire pressure.
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05-18-2018, 09:42 PM
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#6 |
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VIP Member
Join Date: Mar 2003
Location: Littleton,Colorado
Posts: 1,194
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Liked 249 Times in 109 Posts
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Re: Front tire pressure adjustments
A brake pressure switch will work for some, not for others. When I tried one on my Skyhawk, I found out I don't pull my foot up consistently off the brake pedal. Way too much variable with reaction times, went back to button in pedal. Was between .008 and .036 in six runs today testing.
__________________
Lane Weber It`s Not What You Drive That Wins....It`s How You Drive It |
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05-18-2018, 11:03 PM
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#7 |
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Junior Member
Join Date: Nov 2008
Posts: 30
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Liked 0 Times in 0 Posts
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Re: Front tire pressure adjustments
Trust me from 40-17 works. It's worth about .012-.015
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05-19-2018, 10:32 AM
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#8 | |
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Live Reporter
Join Date: May 2006
Location: Dripping Springs, Tx
Posts: 2,709
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Liked 520 Times in 132 Posts
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Re: Front tire pressure adjustments
Quote:
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Ed Carpenter 2005 Chevy Cobalt A/SM Race Engine Development |
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05-19-2018, 11:16 AM
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#9 |
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Veteran Member
Join Date: Mar 2005
Location: Sand Springs, OK
Posts: 8,132
Likes: 896
Liked 390 Times in 170 Posts
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Re: Front tire pressure adjustments
Wish I could remember who, but a fast stick shift guy once showed me weights he bolted to his clutch pedal.
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Ed Wright 4156 SS/JA |
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05-18-2018, 04:55 PM
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#10 | |
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Senior Member
Join Date: Dec 2008
Location: Berthoud, Coloraduh
Posts: 695
Likes: 13
Liked 8 Times in 7 Posts
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Re: Front tire pressure adjustments
Quote:
damn! never thought of that! I gotta try it 
__________________
without losers,winning means nothing. |
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