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Traction Roll SC10 4x4 Have some questions..

Traction Roll SC10 4x4 Have some questions..

Old 02-22-2012, 02:19 PM
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Default Traction Roll SC10 4x4 Have some questions..

I have an SC10 4x4 that I race indoors on carpet. I run stock Losi Strike Tires w/stock Orange foams. I have am running the stiff sway bars. I changed from stock bladders to emulsion style shocks and picked up the traction roll..... I like the way the truck lands and plants the power, but in high speed corners, I either traction roll or have to slow down way too much. Either way, I am loosing a lot of time in the high speed corners..... I am assuming because there is very little rebound in the shocks (now that it is emulsion) there just isn't enuff suspesion travel . Maybe I am wrong... Aside from switching back to bladder style shocks, are there any other things I can try?? Thank you for any help.

If this has been covered in the SC10 4x4 thread, please include a link to the page. I simply don't have the 12 hrs necessary to read the whole Sc10 4x4 thread.............
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Old 02-22-2012, 02:28 PM
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Originally Posted by active_sport
I have an SC10 4x4 that I race indoors on carpet. I run stock Losi Strike Tires w/stock Orange foams. I have am running the stiff sway bars. I changed from stock bladders to emulsion style shocks and picked up the traction roll..... I like the way the truck lands and plants the power, but in high speed corners, I either traction roll or have to slow down way too much. Either way, I am loosing a lot of time in the high speed corners..... I am assuming because there is very little rebound in the shocks (now that it is emulsion) there just isn't enuff suspesion travel . Maybe I am wrong... Aside from switching back to bladder style shocks, are there any other things I can try?? Thank you for any help.

If this has been covered in the SC10 4x4 thread, please include a link to the page. I simply don't have the 12 hrs necessary to read the whole Sc10 4x4 thread.............
Have you tried adjusting the roll center via shimming the inner camber mounts?
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Old 02-22-2012, 02:30 PM
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Originally Posted by active_sport
I have an SC10 4x4 that I race indoors on carpet. I run stock Losi Strike Tires w/stock Orange foams. I have am running the stiff sway bars. I changed from stock bladders to emulsion style shocks and picked up the traction roll..... I like the way the truck lands and plants the power, but in high speed corners, I either traction roll or have to slow down way too much. Either way, I am loosing a lot of time in the high speed corners..... I am assuming because there is very little rebound in the shocks (now that it is emulsion) there just isn't enuff suspesion travel . Maybe I am wrong... Aside from switching back to bladder style shocks, are there any other things I can try?? Thank you for any help.

If this has been covered in the SC10 4x4 thread, please include a link to the page. I simply don't have the 12 hrs necessary to read the whole Sc10 4x4 thread.............
Try going up 2.5-5 wt in shock oil. Emulsion style shocks are 'softer' due to air mixing with the oil and basically making the oil thinner. Also, if the front tires are biting too hard and causing your traction roll, superglue the sidewall of the tire to reduce grabbing. You could even superglue a bit of the tread on the outer edge of the tire as well. Do a little at a time until it steers good but doesn't roll.
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Old 02-22-2012, 03:21 PM
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Originally Posted by symmetricon
Have you tried adjusting the roll center via shimming the inner camber mounts?
I have not tried adding washers, but will make that my next step.

Originally Posted by Stealth_RT
Try going up 2.5-5 wt in shock oil. Emulsion style shocks are 'softer' due to air mixing with the oil and basically making the oil thinner. Also, if the front tires are biting too hard and causing your traction roll, superglue the sidewall of the tire to reduce grabbing. You could even superglue a bit of the tread on the outer edge of the tire as well. Do a little at a time until it steers good but doesn't roll.
I have already bumped up 5wt in both front and rear. While the superglue is an idea, there are a few guys running the same tire with the proline blue foams. It seems to work well in their 2x4 SCTs.. I may try that, but was hoping to keep the same tire feel, as it is hooked and thru tight turns I can carry incredible speeds, it is just the higher speed areas that suffer... If changing foams, I fear it would comprimise my low speed cornering...
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Old 02-22-2012, 04:43 PM
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change those strike tires to what the "prefered" tires are at your track
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Old 02-22-2012, 04:55 PM
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You can shorten up the sway bars also. Are you running them flush with the link or pulled through. Pull them through and I bet the problem goes away.
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Old 02-22-2012, 05:17 PM
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Originally Posted by travymoto11
change those strike tires to what the "prefered" tires are at your track
Strike tires are the prefered tire for our carpet surface.

Originally Posted by jmackani
You can shorten up the sway bars also. Are you running them flush with the link or pulled through. Pull them through and I bet the problem goes away.
I will try this as well. As currently my sway bar is flush with the link.
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Old 02-22-2012, 06:00 PM
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Have you tried adding a little negative camber, how much do you have? If you don't have enough the high side loads from the traction can sorta fold the outer edge over and cause a sudden traction roll.
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Old 02-22-2012, 06:08 PM
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Originally Posted by Dave H
Have you tried adding a little negative camber, how much do you have? If you don't have enough the high side loads from the traction can sorta fold the outer edge over and cause a sudden traction roll.
The strike tires are pretty stiff, I think it would be tough to fold the outer edge on them. Though I do agree with the negative camber.
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Old 02-22-2012, 06:31 PM
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Originally Posted by jmackani
The strike tires are pretty stiff, I think it would be tough to fold the outer edge on them. Though I do agree with the negative camber.
Yeah, what I was trying to say with the sorta of comment. It just seems to hook a little on the edge. In any event some more camber most always helps me when I have traction rolling issues.

Also suspension set up can be somewhat counter intuitive. Letting it roll a little, a softer setup, should help absorb some energy. A really stiff set up can go over really quickly, the suspension doesn't soak up any energy.
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Old 02-22-2012, 09:16 PM
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Originally Posted by active_sport
Strike tires are the prefered tire for our carpet surface.



I will try this as well. As currently my sway bar is flush with the link.
Stock SC10 tires are the choice for most carpet tracks for best traction. The hpi stock tires are the choice for most forgiving while still giving traction. I run the stock sc10 tires on my scte, they are outstanding & funny enough also work well on the indoor clay track I run at sometimes.
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