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Author Topic:   flat track to high bank track
bachshute
Dirt Maniac

Total posts: 118
posted August 11, 2005 08:14 PM  
what are some of the common changes made when going from a flat track to a high banked track ?

should straight bar be raised or lowered ?
more LR bite or less ?
should wieght percents be changed ?

I know there are a lot of varibles but i am looking for the most common changes made when going to a high banked track. Thanks

[This message has been edited by bachshute (edited August 11, 2005).]

FlyNLoIMCA17
Dirt Forum Champ
Total posts: 753
posted August 11, 2005 09:17 PM  
right off the top of my head..... decrease angle in panhard/J-bar. Raise panhard/J-bar. Reduce Left Side %. Raise front Roll Center, if you have the ability/or mounts. Raising the panhard bar will raise the rear RC. The front is a little more difficult and may not be an adjustment thats absolutely neccesary or practical. Probably want to stiffen the springs.( not sure on the springs though?? can't remember if you stiffen or weaker so don't hold me to that.) Also probably wouldn't need as much LR bite. Thats what I can think of right now. I used to run a track in TN that had a supposed banking of 28 degrees. I ran ther on Sat. and on Fridays I ran a flat track and never changed anything on the car. This was when I first started driving so I wasn't exactly burning up the track either place but I could normally run in the top 3 or 5 with the same setup.

I'm sure others will add to it.

[This message has been edited by FlyNLoIMCA17 (edited August 11, 2005).]

[This message has been edited by FlyNLoIMCA17 (edited August 11, 2005).]

wfoondirt
Dirt Forum Champ
Total posts: 505
posted August 12, 2005 07:16 AM  
We race one fast high bank 3/8s and pretty much everywhere else we run is pretty flat so we do this quite often.

I will actually add ls% because of the speeds involved on the high banks. I know it seems counterintuitive but the higher corner speeds offset the loss of weight transfer due to banking. I've been running a really stiff spring package all year and has been working really well. I also run really low r/c and use a long right side mounted panhard bar (ala rayburn).

As a side note, depending upon the track/racing line/driver etc, ls spring changes can work backwards on a high bank track due to them compressing versus extending.

DirtTrackRacingRules 3 8
Dirt Maniac

Total posts: 101
posted August 15, 2005 07:50 PM  
What i do is take bite out because the banking held it on the left side, and you could soften the rr spring help the car roll more. JMO

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