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Author Topic:   Tight at apex
Dirt Freak

Total posts: 376
posted June 02, 2005 09:15 PM  
Dw-8 short 2-link
51.9% left
60.1% rear w/1/2 tank of fuel, no driver (driver only weighs a buck thirty)
50.6% cross
60lbs. LR bite
Shocks: RF-50/50, LF-30/30, LR-30/30, RR-40/40
Stagger: front-1.25"
Lead on the rear: right side high-2 chunks, 1-17lbs, 1-48lbs.
center low-55lbs.
center high-20lbs.
left side high-2 chunks,1-45lbs, & 1-17lbs.(We have to have this much lead to make our min. weight rule).
Our car is good on dry, but a tad tight at the apex in traffic on tacky. Key words "in traffic".
My question is this. Would it free the car up at the apex on a real tacky track if we took the 48lb chunk off of the right side?

Dirt Freak

Total posts: 209
posted June 03, 2005 04:06 AM  
yes, just try moving your ballast lower and to the left.
could also try some more stagger or increase rr tire pressure.

Dirt Forum Champ
Total posts: 2007
posted June 03, 2005 06:48 AM  
I would take it evenly off both sides or the middle to start with and go from there. Taking it off the right side might free it up a little into the corner but might also tighten it off on the gas because you now have higher left%.

Dirt Forum Champ
Total posts: 505
posted June 03, 2005 09:10 AM  
In reguards to ballast placement, generally I start with all the ballast as far left as possible when its tacky and move it to the right side as the track slicks off. The higher left percentage will free up the car in the middle.

The main things I do to free up apex are more stagger and raising the panhard bar.

Usually when a driver feels the car is tight at the apex in traffic its because the car is actually tight on entry but the driver can overcome it when on a clear track by driving in harder or pitching the car.

[This message has been edited by wfoondirt (edited June 03, 2005).]

Dirt Full Roller

Total posts: 46
posted June 03, 2005 09:21 AM  
wfoondirt, with a j-bar could you just move it up 1 hole on the pinion, or would you have to move both ends up?

Dirt Forum Champ
Total posts: 505
posted June 03, 2005 10:43 AM  
I usually move the whole bar up or down when I make changes, but I typically try to keep the bar as level as possible. If you run alot of angle in the j-bar moving just the pinion side would probably be enough of a change because the RC is closer to that end of the bar.

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