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Author Topic:   Handling
ryan
Member
posted June 04, 2002 12:49 PM
My car pushes on dryslick and is fine on tacky. I was wondering the best way to cure this using wheel offsets,tire pressure and weight placement so I can change it from heat race to feature. p.s. no weight jacks


ryan
Member
posted June 06, 2002 12:02 AM
nevermind I'll just experiement


jammin
Administrator
posted June 06, 2002 12:39 AM
Ryan, you don't have enough cross in the car during the feature...your problem is that you have too much right rear bite to get the car to turn. You can increase cross by putting air in the rf or lr or you can increase cross by taking air out of the rr and lf.....Offsets as well can help you....decrease in stagger in the rear can help....

jammin


racer17j
Member
posted June 06, 2002 01:16 AM
using offsets you can loosen it up by putting less offset on the lr also if you have different rated springs on the rears you could put the heavier one on the right if it's not already


smayo964
Member
posted June 06, 2002 10:15 AM
Hey Jammin. Are you sure you want to increase left rear bite if he's already pushing on a slick track? Just thought you'd want to take some bite out of the left and let the right take the car around the corner. Yes/no?


jammin
Administrator
posted June 06, 2002 10:48 AM
If the entry push is continuing throughout the turn, yes, but if the car sets up in the turns and pushes after it is set up...no. On a heavier car, if you don't have enough motor to turn the car, then if the Right rear never releases then it will push all the way around.


jammin


snowman
Member
posted June 06, 2002 10:54 AM
Ryan, about offset in general, RR out will loosen, LR out will tighten,RF out will tighten...........just some guide lines, you will need to experiment to find the effects on your car/track/driving style.

Good luck,

Snowman

[This message has been edited by snowman (edited June 12, 2002).]

smayo964
Member
posted June 06, 2002 12:22 PM
Ok Jammin. Are you trying to get the RR to "skate" through the corner? Basically taking side bite out of that corner of the car and letting the LR do all the holding? Just trying to get a grip on the logic. Just used to taking the weight out of the LR so it unloads, or can't load during acceleration, making the car roll through and out of the corner on the RR only. Typical to when I used offset rims for tuning (2"), whereby if I was tight, I would move the offset rim to the LR to take the weight off that corner. Like I said, just trying to get an understanding.


ryan
Member
posted June 06, 2002 01:02 PM
The push starts in the middle. Entry is fine. I had a 2" offset on the RF. Everything else had a 4" offset. If I put my rear tire pressure about 3-5 lbs higher than my front that would help also wouldn't it?
Thanks for the posts guys


jammin
Administrator
posted June 07, 2002 01:18 AM
Well..I actually had a little problem with this the last time I raced toward the end of the feature. You had to have enough motor to turn the right rear over to get the car to release the right rear bite to get it to turn. My problem was coming out as well.....mine was due to fuel loss, and my cell positioning. Actually pushed with 2 laps to go. But somewhat the same type of scenario.....I would just increase the air pressures, see if it helps you by doing it on the right front and left rear.....it really depends on your driving style and the motor. If it doesnt help, go the other way with it.


jammin


smayo964
Member
posted June 07, 2002 07:09 AM
Hey Ryan. I ran my camaro on a dry slick track for most of the season here. Your condition now sounds like mine when I ran my camaro. I did the same you did at first, using the offset rim on the front. Since my entry was good, I decided to swap the offset rim from the RF to the LR/RR. I gained more control of the chassis with the offset in the rear. As Jammin stated, I also used a few extra pounds of air in the RR or LR, basically as a fine tune. Humor yourself and try it one night during hot laps, etc. Swap the LR & RF, use the same air pressures, and see if that doesn't plant you good coming out of the corner. A buddy of mine that runs late model told me at the track once that if you're good going in, you want to make all changes in the rear for the middle to off the corner. Good luck.


hobby23
Member
posted June 07, 2002 07:41 PM
is there any stager in your rear tires ? also try a 3 off on rr worked for me ...just a thought


snowman
Member
posted June 12, 2002 01:41 PM
Ryan, I made a mistake in my earlier post concerning the LR.......I have corrected the error..........

AwkwardJeff seen the error and was kind enough to bring it to my attention.......Thanks Jeff.

The reason I mention this,(instead of just editing the post), is to make sure you see it......in the event you had added the info to your notes........I would hate to "steer" you wrong.........lol

Good Luck........(have you ever noticed that you have better "luck" when you have the correct info ??????......lol........)

Snowman

ryan
Member
posted June 13, 2002 01:31 PM
Still not fixed. I took my 2" offset off the right front and ran 4"s all around. Raised my rear tire pressures about 3-4 lbs higher in the back with no success. I only made a little change beacause I didn't want to go too far but it still pushes bad. This week I am going to put my rr out more, switch rear springs around putting the heavier one on rr, and lower my weight some to keep the car from rolling as much. I would rather be loose than tight anyday. I might also have some stagger to use for this weekend also. What effect do offsets have on the lf tire?
Any more suggestions??
Thanks again


hesseracing
Member
posted June 14, 2002 12:03 PM
ryan, i run a camaro with the big latemodel hoosier tires so this may be alittle different for you. 1/4 high bank clay it gets slick later tires are rf18 rr16 lf10.5 lr11 when i go out for feature i add 1 pound to lr and rf. it tightens the car up if you are pushing then i would say take some air out of the rf and lr to loosen it up. as far as the spring you said about changing the heavier one needs to be on the left. hope this helps. i never get to technical and always run good. scott


ryan
Member
posted June 18, 2002 02:04 AM
Well I got it loosend up quite a bit maybe too much but I think I can adjust with air pressure. p.s. I love this site


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