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Author Topic:   ok guys
bubba0six
Dirt Maniac

Total posts: 146
posted May 16, 2005 04:25 PM  
heres the problem... the car is perfect for the heat race.(7 laps, 2nd place finish two weeks in a row) ran 2nd in the main event for about 8 laps 2 weeks in a row. after about 8 laps the car seems to push bad going in. 72 monte, 3370lbs 52.5 left side 52.1 rear 51 cross. springs- 1250lf-1050rf-225lr-200rr-no sway bar hoosier rc4 compound-air preassure left side-10 psi rf-20 rr-18 my question is should i just loosen it up and let it come to me as it tightens up? and where should i do it (move weight, tire preassure, change a spring, or what)?

smallrock98
Dirt Forum Racer

Total posts: 100
posted May 16, 2005 04:51 PM  
You might just want to try changing the RF wheel with an offset that brings it in closer. If not, soften right front spring a little bit or drop rf air pressure a couple pounds. I'd try the offset rim first. You might be suprised.

hoosier transplant
Dirt Maniac

Total posts: 104
posted May 16, 2005 05:02 PM  
I think possibly that the front springs need to be swapped. You might be good for a few laps, but then the right front is heating up too much and causing the push. Might also take a little cross out.

sc1 racing
Dirt Freak

Total posts: 419
posted May 16, 2005 05:21 PM  
try 12 lbs air in the right side, 10 in the left front, and 8 on l/r..

bubba0six
Dirt Maniac

Total posts: 146
posted May 16, 2005 05:33 PM  
sc1 are you serious or do you run against me and trying to mess me up? really?

crew81
Dirt Roller

Total posts: 10
posted May 16, 2005 07:00 PM  
Do you run nitrogen? That will keep your tires more consistant throughout the race. (but that might just be the asphault side of me talking?)

bobaluuu
Dirt Freak

Total posts: 474
posted May 16, 2005 07:58 PM  
definately change the two front springs over
and drop that air pressure on the right side about 3lbs front and rear. Finally consider that your driving might be a cause as well.
are you driving more aggressively as the laps mount up and adrenaline increases.

------------------
Light it up, Baby!

racer17j
Dirt Forum Champ
Total posts: 5390
posted May 16, 2005 08:04 PM  
should i swap the front springs or just stifen up on thr rf? (i have plenty of springs)and if i swap them how will this affect the car on the first half of the race? i have considered my driving to be part of it but i dont really think that is the problem

Busch
Dirt Full Roller

Total posts: 46
posted May 17, 2005 05:22 PM  
What kind of track are you on? If it is a steep banked momentum track your springs may not be far off. I agree drop the air a touch and maybe try a little more roll out and let the car come in later in the race.

bubba0six
Dirt Maniac

Total posts: 146
posted May 17, 2005 06:46 PM  
3/8ths mile med bank goes dry slick in a hurry

36 Race Team
Dirt Full Roller

Total posts: 45
posted May 22, 2005 03:03 PM  
Are you running the E-MOD hoosiers if so I agree with lowering right side pressures. Try 15 RF and 14 RR check pressures all around immediately after feature and see where you end up...if you don't already have a beadlock on RR get one if possible

bubba0six
Dirt Maniac

Total posts: 146
posted May 23, 2005 08:23 PM  
we run the RC4 Compound Hoosier 36220 with 8 inch wheels. i tried the lower air preassures (2 pounds on the right side is all i let out) and it was really loose. and never tightened up as the race went on. finished 5th. I will try swaping the springs on the front. but i would really like to know how much diffrent the car will react. (will i have to re set up my whole front end am i gonna have to change my driving style how is the car gonna react diffrent? we dont have practice but once every 5 or 6 weeks or it would be no big deal, and im 3rd in points and cant really afford a terrible night trying to learn to drive again.

Raz_900
Dirt Forum Champ
Total posts: 635
posted May 23, 2005 09:02 PM  
I run the same tires on a banked high speed 1/2 mile. I've found going down to 17 PSI on the right front rolls it over to within 1" of hitting the wheel on the ground. 19-19.5 PSI seems to work best on the RF.

RR drop it to 12-14 depending on stagger and tire temp.

To keep the change from being too drastic, drop the LF down a bit at a time. The 1050 on the RF might not be all that bad, but the 1250 on the LF is throwing all the weight onto the RF going in.

Change the air in the RR, run it, then try an 1100 or 1150 in the LF. If it gets better, go to a 1000 or 1050 on the LF. If it's better still, up the RF to a 1100 or 1150. Small changes a little at a time will be better than 3 massive changes all at once. (Softer LF, stiffer RF and changing split)

Without a sway bar and that heavy of a car, I wouldn't go below 1000 on the LF.

[This message has been edited by Raz_900 (edited May 23, 2005).]

sc1 racing
Dirt Freak

Total posts: 419
posted May 23, 2005 09:12 PM  
geez i didnt notice you had springs backwards in the front..change them definatly..you will see a world of improvement..

    

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