 Neep some help, front tire chatter how do I fix it??, Second day on track tomorrow |
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 Dec 1 2013, 12:20 AM
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Experienced Member  Group: Advanced Members Posts: 1,099 Joined: 14-October 06 From: Mobile, Al Member No.: 1,410  |
First time on r comps.
The front end is chattering in the corner, get on the gas and it fixes it cant carry any entry speed because of it. Tires are BFG R1's, pressures to start are 30F 26 R, end of session 34F 33R. I took the rear spring rubbers out and lowered the rear. The ass end was all over the place, this helped a bunch and dropped 3 seconds off the lap time. Go up or down on pressure or what? You enter the corner, the car starts to push and the tires chatter, skip, gas pedal pedal helps it. All input welcome. My new best is 2:02 at NOLA. |
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Dec 2 2013, 03:56 AM
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Experienced Member Group: Advanced Members Posts: 1,099 Joined: 14-October 06 From: Mobile, Al Member No.: 1,410 |
Listen at 4:44 and 8:56
https://www.youtube.com/watch?v=xKIDff6zT5c...eature=youtu.be When I open the wheel or get on the gas it goes away |
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Dec 2 2013, 01:27 PM
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#3
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FRRAX Owner/Admin Group: Admin Posts: 15,433 Joined: 13-February 04 From: Ohio Member No.: 196 |
QUOTE (FASTFATBOY @ Dec 1 2013, 10:56 PM)  Listen at 4:44 and 8:56 https://www.youtube.com/watch?v=xKIDff6zT5c...eature=youtu.be When I open the wheel or get on the gas it goes away I can't see the video from here at the office, but we fought that in autocross. When you turned the wheel and the tires started to chatter (and the car quits turning) you have to learn to unwind the wheel and get the contact patch flat on the ground. That could be a case of too much camber (caused by too much castor) where the tire gets up on the edges. That always seemed to be the issue in autocross (tighter turns). |
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Posts in this topic
FASTFATBOY Neep some help, front tire chatter how do I fix it?? Dec 1 2013, 12:20 AM
nape Less front roll stiffness > Soften the front sw... Dec 1 2013, 05:21 AM Blainefab Try backing off the front sb end link nuts a coupl... Dec 1 2013, 06:25 AM Steve91T I don't think that's enough front tire pre... Dec 1 2013, 06:27 AM Blainefab With Toyo/Hoosier/Yokohama, starting cold pressure... Dec 1 2013, 08:37 AM
Interceptor QUOTE (Blainefab @ Dec 1 2013, 01:37 AM) ... Dec 1 2013, 03:37 PM ReEntryRacer QUOTE (Interceptor @ Dec 1 2013, 07:37 AM... Dec 1 2013, 09:17 PM FASTFATBOY VID
http://www.youtube.com/watch?v=YaCRdy4mBVw...... Dec 1 2013, 11:22 AM robz71lm7 How are your caster bushings??? I've had weir... Dec 2 2013, 07:33 PM PeteL Loose upper control arm bolts were the cause of my... Dec 2 2013, 09:59 PM FASTFATBOY All of my front bushings are fine.
Would the 35/1... Dec 3 2013, 04:02 PM FASTFATBOY Tire pics. They were rotated at the end of day 1.
... Dec 3 2013, 04:04 PM trackbird QUOTE (FASTFATBOY @ Dec 3 2013, 11:04 AM)... Dec 3 2013, 04:48 PM Steve91T You're on Strano springs, right? Seems like yo... Dec 3 2013, 05:05 PM FASTFATBOY QUOTE (Steve91T @ Dec 3 2013, 05:05 PM) Y... Dec 3 2013, 05:24 PM Steve91T QUOTE (FASTFATBOY @ Dec 3 2013, 12:24 PM)... Dec 3 2013, 06:13 PM FASTFATBOY QUOTE (Steve91T @ Dec 3 2013, 06:13 PM) Q... Dec 3 2013, 09:50 PM camarokid91 My car does this in Autocross on low speed tight c... Dec 4 2013, 06:38 PM trackbird QUOTE (camarokid91 @ Dec 4 2013, 01:38 PM... Dec 4 2013, 08:46 PM FASTFATBOY QUOTE (trackbird @ Dec 4 2013, 08:46 PM) ... Dec 4 2013, 08:50 PM FASTFATBOY I took my spring rubbers out of the rear, it dropp... Dec 4 2013, 08:54 PM ReEntryRacer QUOTE (FASTFATBOY @ Dec 4 2013, 12:54 PM)... Dec 4 2013, 09:54 PM Blainefab QUOTE (FASTFATBOY @ Dec 4 2013, 12:54 PM)... Dec 10 2013, 02:46 AM FASTFATBOY QUOTE (Blainefab @ Dec 10 2013, 02:46 AM)... Dec 10 2013, 02:55 AM mr.beachcomber QUOTE (FASTFATBOY @ Dec 10 2013, 02:55 AM... Dec 10 2013, 01:24 PM FASTFATBOY QUOTE (mr.beachcomber @ Dec 10 2013, 01:2... Dec 10 2013, 01:47 PM FASTFATBOY QUOTE (Blainefab @ Dec 10 2013, 02:46 AM)... Dec 10 2013, 01:50 PM FASTFATBOY I put the Detroit TrueTrac in the car, trimmed the... Dec 8 2013, 11:48 PM |
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