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Author Topic:   Sliding the frontend BAD
Jacob53
Dirt Roller

Total posts: 23
posted April 18, 2005 11:56 AM  
It doesnt do it as much or as bad in the beginning of a run but like 5 or 6 laps in it starts sliding the frontend real bad. I dont want to have to lower the tire pressures anymore because they are at like 16psi now. Anyone have any ideas?

johndirt
Dirt Newbie

Total posts: 2
posted April 18, 2005 03:01 PM  
On my bomber (which I run a 1/4 mile) I run 9 psi on both left sides, 16 or right front and 14 on right rear. I am also running hard tires on right side and soft on left (Hoosiers). Don't know if that will help you any, but... also, have you scalled the car? You might have too much percentage weight on the front...

racer17j
Dirt Forum Champ
Total posts: 5390
posted April 18, 2005 06:09 PM  
And if you do get those numbers I am quite certain we can cure it.

bigdozer
Dirt Full Roller

Total posts: 54
posted April 19, 2005 05:01 PM  
try putting all tires at 28 psi and run your laps again if it still pushes bring rt front down 2psi until you get to 22 psi radials are about done at that point (does your rearend have a locker if not it will always have apush

2870
Dirt Roller

Total posts: 14
posted April 19, 2005 05:05 PM  
to stiff a rf spring, shock, or sway bar might be the problem.

Jacob53
Dirt Roller

Total posts: 23
posted April 19, 2005 09:58 PM  
well the frontend is pretty low our tires are from 16-18 psi. Dunno Chissis type, Track is Semi banked 5/8 mile clay track. Weight is around 3400pounds. I am think it might be that the temps in the tires get built up i saw another post on here sayin that maybe goin up in the cold mud by the wall under caution could help bring temps and pressure down in the tires hence get me my handling back. Dunno if that is the prob or not.

petordragon
Dirt Maniac

Total posts: 167
posted April 20, 2005 01:46 PM  
you are prob not using all of you tires use temp gauge to see if even temp acrost the tire and if low budget get a tire depth gauge measure tread acrost the tire (will only work if you leave that tire on that corner) measure after each race and adjust camber and tire pressure to maintain even wear.

k2dirtnut
Dirt Full Roller

Total posts: 33
posted April 20, 2005 05:03 PM  
petrodragon is right, you can also take shoe polish and make a line from the top of the tire to the rim in 4 or 5 places to see how much the tire is rolling over then adjust your pressure. I had the same problem a few years ago and a friend told me to get back in the gas and help bring the back end around that helped alot, but if you have a real problem it could or will probably put you into the wall.

doubletrouble racing
Dirt Forum Racer

Total posts: 88
posted April 21, 2005 08:51 PM  
We been working on our front set up as well,it is a try it and change it sitution.First off tire pressure is a little high then we run,15lbs in Rf and as low as 10.5 in left rear.No bead locks yet run tubes in all tires.We are playing with tire sizes right now.I was told to put a BIG tire on the right front we had a 25 1/2 inch tall tire there before.Tryed a 29 1/2 inch tire last week(BIG TIRE) car was great coming into turn but middle off it was tough getting it to turn,ya we are also experincing a bad power steering pump but think tire was alittle big we will go and try something alittle smaller this week like 27 1/2 inch.The whole idea is to add cross in the car,since us purestockers cant adjust with weight jacks we must do it with tire sizes

Steve Dupree
Dirt Freak

Total posts: 316
posted April 22, 2005 04:30 AM  
Hey doubletrouble one problem i see is the left rear if you are pushing from apex out. Leave big tire on right front and try this for a start next week. left front 14 right front 20 left rear 14 right rear 18. Play with air preasures in two lb. inc.

bubba0six
Dirt Maniac

Total posts: 146
posted April 22, 2005 02:51 PM  
sounds like a brake problem to me (too much front brake) do you adjust your rear brakes every week?

petordragon
Dirt Maniac

Total posts: 167
posted April 23, 2005 07:16 PM  
adding cross will make it tighter. try adding more rear stagger around 2.5" move rf under car more a 3" or 4" and rr out a 3" or 2", and dependin on how big a fuel cell you are running runn it as low as possibe.

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