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Author Topic:   chassis help
toddr46
Dirt Roller

Total posts: 18
posted July 27, 2004 06:06 AM  
Could someone confirm this or correct me if im wrong. Wedge or crossweigt is the total of the RF and LR added together and divided by the total weight. what would be a good ball park number to get for a metric?

36 Race Team
Dirt Full Roller

Total posts: 45
posted July 27, 2004 01:55 PM  
you are correct...our car has between 52- 53 cross depending on track conditions-however all cars are different

toddr46
Dirt Roller

Total posts: 18
posted July 28, 2004 05:55 AM  
would a high % make the car tighter. the car is a little loose, but fast for heats, but scary loose in the center and off the corner for the feature on dryslick. it does have foward bite though.

eborcim
Dirt Freak

Total posts: 303
posted July 28, 2004 09:18 AM  
Increasing the crossweight % too much will make the car push. Like mentioned above each car and driver are different for what % they like, but probably above 54% cross you are in trouble.
What are your beginning and ending tire pressures in the rear? I like to start with 10-12 (beadlock) in the RR and 12-14 in the LR. One of the guys is running nitrogen gas instead of air. For dryslick you want a little more pressure in the LR than RR...helps keep the car from being loose. Now, you also have to keep from spinning the heck outta the tires b/c 1. you are building tire pressure (changing stagger) 2. you are wearing out the tires prematurely and 3. you ain't goin' nowhere fast.

WesternAuto17
Dirt Forum Champ
Total posts: 569
posted July 28, 2004 09:59 AM  
Just to make sure we're all on the same page--

It doesn't make sense to say that you are scary loose at the corner exit, but have good forward bite. Forward bite, by definition, is traction from the center and off the corner.

I'm running a 3000lb metric at 54% cross and about 52% rear and my car is best on a slick track. However, I am also low on power right now, so I don't even worry about tacky tracks, I just don't have to power to run good early in the night.

toddr46
Dirt Roller

Total posts: 18
posted July 29, 2004 04:52 PM  
what I mean is it feels like it is going to spin out,i have to drive it in easy, but once i catch it and am pointed in the right direction and hit the gas it hooks up good for a dryslick track. If I toatally mat it I can break it loose but the obvious question am I loose because i am buzzing the tires all the way out,I don't think so.

o5racer
Dirt Freak

Total posts: 402
posted July 29, 2004 09:12 PM  
Hey western, Is your car 3000 with you in it? Or is that just the car only?

    

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