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Author Topic:   set up help
nick29purestock
Dirt Roller

Total posts: 21
posted November 26, 2004 07:39 PM  
2005 will be my second year runnig dirt after switching from the asphalt, and i'm gettting a handle on things finally, but like everyone else, I'm trying to find that extra little bit to break into the top 5 and have a couple wins hopefully this upcoming season. I am running a Gm metric chassis that i built my self with an 85 monte ss body on it for next year we have up to 10/1 compression, dot tires 8" or less wide, 3200lbs. I run at the Central PA Speedway in Clearfield, PA which is a 3/8 inside 4/10 outside line "D" shaped slightly to medium banked track. The track stays wet and tacky for hot laps and the heat races but turns to the hard/dry side( well as dry as it can with all the brine they water the track with.)for the features. My car seems to doo ok in the hot laps, Great in the heats, and gets bad for the feature( it gets on the very loose side). Here are my questions for everyone on here: I'm not too good at figuring out what I should do to the car between the heat and feature when the track changes the most, what kinda of changes do you think would make the car handle better? I am going to buy new shocks for next year(left in my old asphalt shocks to save money), what brands are better in the stock mount style and what com/reb rates should i get? my springs are lf 900, rf 1100, lr 225, rr175 ( bouught off a suggestion of local speedshop) any comment/suggestions on possible changes to these spring rates? whats a good starting point for caster/ camber on this style track? What backspacing on the rims should i get for next year (had all 3" this year from the asphalt days...) ? Thanks in advance for any and all help Nick

racer17j
Dirt Forum Champ
Total posts: 5390
posted November 26, 2004 09:10 PM  
try 25 lb split on the rear put a 200 on rr

nick29purestock
Dirt Roller

Total posts: 21
posted November 28, 2004 08:34 PM  
I weight about 3400 -+ I' don't rember the exact weights, and i never wrote them down, We were in a bit of a time crunch that day. My left was about 51, rear was about 46-7 and the cross was around 48-49. I know you guys are going to tell me that the scale are my friend, I just never had the chance to get across the scales that often down at the track, its just a little too hectic down there. I was running 16psi rr, 16psi rf, 15 lr 14 lf. If i put any more than about an inch of stagger it would get unhandlable loose. I was running 3 inch offset wheels all around i did put 1/2 inch spacer on the lr and it seemed to help out a bit

nick29purestock
Dirt Roller

Total posts: 21
posted November 28, 2004 08:42 PM  
What weights and percentages are ideal for the type of track i mentioned above?

lastplacecar
Dirt Roller

Total posts: 16
posted November 28, 2004 08:44 PM  
Get a Rebel Chassis and it will save all your problems. lol

racer17j
Dirt Forum Champ
Total posts: 5390
posted November 28, 2004 10:31 PM  
The car seems to be ok going in, as far as i can tell considering my asphalt racing background..... to me sliding it sideways around a turn like we do on the dirt still makes me think its loose but i know its not... but i am learning the differance between loose and on the edge of control atleast on dirt


lastplacecar... do you run at CPS, your comment about rebel chasis makes me wonder if i know you....

lastplacecar
Dirt Roller

Total posts: 16
posted December 01, 2004 03:02 PM  
Yeah, you do know me and I have raced at CPS. I've never scaled my car just kinda did it the old fashion way with the jack under the rear end but you really have to get your rear percentages up. I usually just put in a spring rubber in the left rear to tighten up my car. Seems to work for me.

nick29purestock
Dirt Roller

Total posts: 21
posted December 01, 2004 08:42 PM  
lastplacecar.... I must be drawing a blank...let me know who you are...email me if you don't want to reveal your name on here

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