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Author Topic:   NEED HELP READING TIRES
YAZ
Dirt Maniac

Total posts: 147
posted July 17, 2005 08:39 PM  
MY CAR WORKS GOOD UNTIL THE LAST 3 TO 4 LAPS AND IT STARTS PUSHING REAL BAD.
TIRE TEMPS AFTER FEATURE WERE
LF 109 RF 135
LR 110 RR 130
THE RF TIRE GROWS 2 LBS. OF AIR
ALSO RF TIRE WAS HOTTER ON INSIDE THAN OUT SIDE 135 IN 130 MIDDLE 119 OUT SIDE
DO I NEED TO ADJUST CAMBER, IF SO DO I GO WITH LESS CAMBER?
ANY HELP WOULD BE APPRECIATED

racer17j
Dirt Forum Champ
Total posts: 5390
posted July 17, 2005 11:04 PM  
GO WITH LESS CAMBER

YAZ
Dirt Maniac

Total posts: 147
posted July 20, 2005 09:08 PM  
for anyone having the same problem.
I changed the camber to 3deg. moved 50lbs
of weight from the left rear to the middle
and changed the rr wheel offset from 3"
to 2". the car is now too loose. as they
say do onething at a time.
I am going to move the weight back try it
this week end.

hsracer158
Dirt Full Roller

Total posts: 33
posted July 31, 2005 08:46 PM  
I would just take out some camber. What is your total on the RF? We run neg 5.5 degrees. We spent alot of time on the front end machine over the winter, what a difference from last year.
Rick

CLBaker25
Dirt Maniac

Total posts: 193
posted August 02, 2005 02:22 PM  
Remember that by moving 50 pounds from one side to the other you are giving the car a double wammy of taking the weight off of one side and putting it on the other. That would be like just adding 100 pounds to the right side. I doubt that you would ever do that.

I would try to find a smaller change. Depending on the weight of your car you took out 3-4 percent of left side. Which would make a huge difference in your setup.

Good Luck!

Steve Dupree
Dirt Freak

Total posts: 316
posted August 02, 2005 05:26 PM  
Yes small changes is the way to go and no more than one at a time or you will get lost. We tried running less rear weight last week for a test but we run bigger tires and wow we were back to are old set up quick by the second nite of trying this. Two pounds of air will change alot so dont go moving 50 lbs and all those other changes all at once. You probally had the car you wanted when it tightened up at the end and hear is the reason why. You were running good and started getting smother on the gas and easier in the corner and letting off the gas easier at the same time as entering the corner. So end result is the car started pushing,Put it back the way it was and when it does that move up a little on the track and drive it harder into the turn by just a little and it will get screaming fast.

CLBaker25
Dirt Maniac

Total posts: 193
posted August 03, 2005 07:25 AM  
What are your tire temps doing?

nate 11
Dirt Freak

Total posts: 316
posted August 03, 2005 06:24 PM  
go to the tool box there is a guide for tire temps. in the chassis calculation. hope this helps........later

YAZ
Dirt Maniac

Total posts: 147
posted August 07, 2005 08:34 PM  
thanks nate, I didnt even know that was
in the tool box, I will give it a try.

    

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