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Old 12-29-2012, 11:13 PM   #2776
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Any info on western Union payments to purchase the Car ???
Anyways, I think many things can contribute to your traction roll problem, but we'll need to know how much droop , front caster(progressive or not), camber, upper arm angle, and most importantly roll Center( it probably should be at the lowest setting)... Also, if your Car is not close to scrubbing the carpet in the turns, then you are on the stiff side, if your droop is 1.5mm to 2mm above rideheight... It''s really all about balancing responsiveness and lowering the CG in turns while maintaining traction.... Of course saucing full fronts is a no no. I would not even sauce full rears, just 80% inside.... Just food for thought....
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Old 12-29-2012, 11:32 PM   #2777
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Raced this car for the first time today, I am impressed.
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Old 12-29-2012, 11:34 PM   #2778
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I forgot , your track width will need to be 190mm , and if you could lower your lightweight body some, it would help.... Good luck and congrats on running faster with the A700....
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Old 12-29-2012, 11:59 PM   #2779
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Are you saucing full front or half fronts?
half front...
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Old 12-30-2012, 12:05 AM   #2780
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I forgot , your track width will need to be 190mm , and if you could lower your lightweight body some, it would help.... Good luck and congrats on running faster with the A700....
Already at 190...thanks...

Come to think of it, I may have been experiencing the issue only when I sauced quickly and wiped it off after very short period of time...anxiousness for track time to test new adjustments...

I think I'll make a point to wait at least 10-15 minutes after saucing to wipe off the excess prior to going for a run...patience is a virtue...

Thanks again guys...the car is a lot of fun!
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Old 12-30-2012, 01:00 AM   #2781
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half front...
mhavlena, can post your setup? We could give you better advice to help you get your car hooked up, also you could try a different traction compound to see it helps.

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Old 12-30-2012, 03:58 AM   #2782
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Hi all,

I would like to know about the handling characteristics between the L and EXL version.

Is one version better for carpet and the other for tarmac? One better for more technical and twisty outline, and the other one better for faster and straighter outline?...

Thanks in advance!!
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Old 12-30-2012, 04:29 AM   #2783
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Well, I did my first full 6 minute timed run today and.....well...I beat my record by two (2) laps??!!.....excuse me while I lay here in shock.....

My setup is similar to Jake Danilchick racing on tight high grip small carpet track, with exception to using long camber links and a little heavier on rear dampers...

Only problem that I am experiencing is that I have to take it easy for the first two laps, otherwise the car will traction roll on the fast sweeper...after the 2 laps, I'm good for the remainder of the run.

Any ideas as to how I can dial this out? I'm not really sure whether the traction roll is caused by the chassis being too stiff or too flexy, however, if I don't put any sauce in the front, it won't roll over at all.

Appreciate any thoughts on this matter.

Thanks!!
Hey MHavlena,

Congratulations on your new personal best... 2 laps !! That pretty cool.

What tires are you using ?

I really didn't feel my car was at all close to traction rolling at TZ II. I reduced the sauce in front to take a little bit of the early "edginess" out so I'd be a little smoother early but not due to any fear of traction rolling.

The easiest changes in order ( Only for *HIGH speed* sweeper traction roll , NOT corner entry traction roll ! )

reducing front camber.
change saucing technique.
turn down dual rate
increasing front droop ( may make it better or worse ! ) ( allows front to raise under power - reducing front traction in high speed sweeper , but allows car to roll more which can add to too much body roll)
adding another .5mm shim to the front hubs.
a larger front anti roll bar
reducing front caster and/or reducing active caster
adding shims to raise roll center on front A-Arms
using a light weight body ( if you aren't already ! )

Again , please note that this is for high speed traction traction rolls, not quick tight , "pressure spike" traction roll issues.

My setup is based on Freddy's setup, so maybe he can chime in here and suggest a solution ?

gotta go get some zzzzz's.

Cheers,

Jake D.
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Last edited by Magnet Top; 01-01-2013 at 01:39 AM.
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Old 12-30-2012, 06:41 AM   #2784
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Oleg, I sent you the funds ! Ship me the best EX kit you have....ahahah..... What a relief ! Now which deli to hit....lol...
No saucing the outer edges of the Tires front & rear , and you'll be alright.... Another thing to consider is tire cleaner. Is it oily? I use nitro clean and it dries good, leaving the tire not too sticky: great to fix too much grip...
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Old 12-30-2012, 08:12 AM   #2785
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I was under the impression that to stop traction rolling, you had to lower the roll Center , increase front camber and caster (no progressive caster) , keep the droop between 1 to 2mm , and soften the springs a bit.....
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Old 12-30-2012, 08:16 AM   #2786
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The anti roll bar should also be softer to stop traction rolling...
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Old 12-30-2012, 09:42 AM   #2787
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Do You have any good tips to ad or remove shims under pivot balls, without rebuilding whole car... ? Shims under suspension arms, inner.
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Old 12-30-2012, 10:08 AM   #2788
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Originally Posted by markova View Post
Do You have any good tips to ad or remove shims under pivot balls, without rebuilding whole car... ? Shims under suspension arms, inner.
this is perfect:
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Old 12-30-2012, 10:32 AM   #2789
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Originally Posted by Magnet Top View Post
Hey MHavlena,

Congratulations on your new personal best... 2 laps !! That pretty cool.

What tires are you using ?

I really didn't feel my car was at all close to traction rolling at TZ II. I reduced the sauce in front to take a little bit of the early "edginess" out so I'd be a little smoother early but not due to any fear of traction rolling.

The easiest changes in order :

reducing front camber.
change saucing technique.
turn down dual rate
increasing front droop ( may make it better or worse ! )
adding another .5mm shim to the front hubs.
a larger front anti roll bar
reducing front caster and/or reducing active caster
adding shims to raise roll center on front A-Arms
using a light weight body ( if you aren't already ! )

My setup is based on Freddy's setup, so maybe he can chime in here and suggest a solution ?

gotta go get some zzzzz's.

Cheers,

Jake D.
Appreciate the info Jake!

We are only allowed sweep 28 spec tire.

Originally, I was not using the sway bars and the car was traction rolling on every lap, now I use the hardest ones, and now the issue is almost all gone with exception to maybe the first lap....

This gives me the impression that reducing roll will help, thus increasing the roll center, so I agree with Jake, I will try more shims on the A arms in front and adding more shims to increase front width....

Also, I am currently using long camber links both front and back. Wolud you think that trying shorter camber links could help a lot with front roll? more than the shims on the A-arm?

Thanks again!!
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Old 12-30-2012, 11:04 AM   #2790
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Originally Posted by bertrandsv87 View Post
The anti roll bar should also be softer to stop traction rolling...
Pretty much everything I suggested was for his specific high speed sweeper traction roll. He specifically said only in this one place was he having a traction rol. Reducing total body roll should help this. But I'm no authority on the subject and it's been a while since I saw a traction roll with the Awesomatix.

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