Author Topic: front end pushing center off need help  (Read 8731 times)

Offline rsrr

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front end pushing center off need help
« on: March 20, 2011, 01:48:21 pm »
What would you suggest for a tight car center off when i get back to gas.Flat asphalt track small tight corners.325 RF 250LF 200LR 180RR 48 CROSS  rf camber -5 left 2.5. do i need softer fron springs harder rear springs or more cross.thanks




Offline DanH

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Re: front end pushing center off need help
« Reply #1 on: March 20, 2011, 04:50:38 pm »
Looked at swapping your rear springs around? Should free it up a little, (that is if you are running 180lb in RR).


Offline VMS Motorsports

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Re: front end pushing center off need help
« Reply #2 on: March 20, 2011, 05:45:52 pm »
What are you running for caster?
I know nothing about asphalt, but adding some RF caster will help the car turn easier
JIM BUCHER
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Offline rsrr

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Re: front end pushing center off need help
« Reply #3 on: March 20, 2011, 07:57:01 pm »
Thanks for help,i will get rest of number and post them soon.I was leaning torwards the heavy of front springs,tried to lower front tire pressure but no help.thanks

Offline justfreaky

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Re: front end pushing center off need help
« Reply #4 on: March 20, 2011, 08:42:32 pm »
What would you suggest for a tight car center off when i get back to gas.Flat asphalt track small tight corners.325 RF 250LF 200LR 180RR 48 CROSS  rf camber -5 left 2.5. do i need softer fron springs harder rear springs or more cross.thanks

Springs and cross weight seem off to me. For flat to medium banked 1/4 mile track, I am thinking more in the range of 51% cross weight. Springs: 200 - LF, 225 - RF, 150 - LR, 125 -RR.  That 325# spring seems kind of excessive. Like Gimpster, I would like to see the rest of your numbers. Tire pressures, and/or tire temp readings, would be nice to know. A link to the track would be nice too. That way we can see the track configuration, size, etc...

This is the reason I stress filling out your profile and posting an introduction. Spend a lot of time playing 20 questions when nobody knows where you race.

Steve
Better to be hated for who you are, Than to be loved for who you are not.


Offline rsrr

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Re: front end pushing center off need help
« Reply #5 on: March 21, 2011, 09:17:05 pm »
OK ,got some more info.Racetrack Indianapolis speedrome 1/5 mile.rf 325 lf275 lr175 rr 225,cross w/o driver 48.7 ride height  rf 3 5/8  rr4 1/8  lf3 5/8  lr 4   wb r73 3/16  l 73 ,24 right side air 20 lf 14 lr.no tire temps


Offline VMS Motorsports

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Re: front end pushing center off need help
« Reply #6 on: March 21, 2011, 10:59:59 pm »
Not to sound like an ass, but cross without driver won't help much, if any.
You need a driver to be pushing , loose, or anything.
Where the seat is mounted, layback, driver weight, it's all going to factor in. Need the numbers with driver
JIM BUCHER
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Offline IraceLegends77

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Re: front end pushing center off need help
« Reply #7 on: March 22, 2011, 07:18:37 am »
Jim is right for getting a base line and also just my opinion is that you have way to much front spring for a track like that.

Scott
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Offline justfreaky

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Re: front end pushing center off need help
« Reply #8 on: March 22, 2011, 08:39:10 am »
Still think you have too much spring. How much stagger are you running?

Steve
Better to be hated for who you are, Than to be loved for who you are not.

knoxracing

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Re: front end pushing center off need help
« Reply #9 on: March 22, 2011, 09:07:32 am »
Call me I can help you. I do not believe you have a spring or cross issue for the 1/5th mile asphalt.  I would say geometry of your set up and or tires. I will tell you the tire pressure is to low for Federals on asphalt.
Dennis Knox
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