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Old 01-11-2009, 05:37 PM   #1
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Default Traction roll cures?

Hey guys.

I am running on what has become a high traction tight carpet track.
I am traction rolling hard in the middle of the high speed sweeper.
Very entertaining to watch at 45 kph I,m sure.
Would putting on a stiffer roll bar and lowering my inner link location help? Or is there another cure I,m just overlooking?

Come on guys, throw me a bone here.

The barrel roll king, Dave.
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Old 01-11-2009, 05:40 PM   #2
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Hey guys.

I am running on what has become a high traction tight carpet track.
I am traction rolling hard in the middle of the high speed sweeper.
Very entertaining to watch at 45 kph I,m sure.
Would putting on a stiffer roll bar and lowering my inner link location help? Or is there another cure I,m just overlooking?

Come on guys, throw me a bone here.

The barrel roll king, Dave.
if your traction rolling try giving your car more droop and also try different tires or even try trueing them down to almost nothing that will help also
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Old 01-11-2009, 05:41 PM   #3
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are you useing traction compound?
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Old 01-11-2009, 05:51 PM   #4
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Sorry Gentlemen, I should have specified.
Jaco prism blue.
Paragon.
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Old 01-11-2009, 05:55 PM   #5
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a bar (or thicker bar), axle spacers/offset (wider track), or less downtravel.

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Old 01-11-2009, 06:01 PM   #6
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Stiffer springs/bar, lower the roll center, decrease downtravel, a smaller holed piston (not common but worst case senario), more front ride height, less dual rate, etc.

These are some of many suggestions.
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Old 01-11-2009, 06:10 PM   #7
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You can also add more camber or even going up in front shock oil 5-10 wt.
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Old 01-11-2009, 06:23 PM   #8
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Stiffer springs/bar, lower the roll center, decrease downtravel, a smaller holed piston (not common but worst case senario), more front ride height, less dual rate, etc.

These are some of many suggestions.
Perhaps I,m very misguided here but does lowering the roll center not increase chassis roll thus worsening the roll issue?

D.
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Old 01-11-2009, 06:26 PM   #9
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Perhaps I,m very misguided here but does lowering the roll center not increase chassis roll thus worsening the roll issue?

D.
Ah yes, roll center...

When i say a low rollcenter i mean a higher hinge pin height relitive to the chassis, thus reducing body roll.

Sorry for any confusion.
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Old 01-11-2009, 06:27 PM   #10
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Default Too much Traction??

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Sorry Gentlemen, I should have specified.
Jaco prism blue.
Paragon.
I like less traction compound first, then stiffer sway bars or camber added, oil thicker last. no ride height adjustments up.

I wish our local track had traction like that, I cannot remember the last time I traction rolled at Fastlane
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Old 01-11-2009, 06:57 PM   #11
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Very good gentlemen!

I shall decrease chassis roll (by whatever means) and use less compound on the outside half of my front tires first.

Rc tech rules!
Who won the novak?
10.5 rubber and 13.5 rubber anyhow?

Dave.
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Old 01-12-2009, 07:39 AM   #12
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LEAVE YOUR SETUP THE WAY IT IS
GO DOWN IN TYRE SIZES UNTILL U STOP ROLLING (LESS TYRE WALL LESS SIDE GRIP)
IF THE TRACTION IS SUPER HIGH U CAN GO DOWN TO LIKE RUBBER BANDS
SO TO SPEAK, AND U WILL GET HARDLY NO TYRE WEAR (MORE TRACTION LESS WEAR)AND THE CAR WILL FEEL DIALED
THE TYRES ALSO BECOME ALOT HARDER WHEN THEY ARE SMALLER
U WILL NOT ROLL IF U RUN TINY TYRES
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Old 01-12-2009, 07:52 AM   #13
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heres 1 way.

1. lower your roll center--the inner hinger pin is closer to the chassis when you lower the roll center, also raising NOT lowering the inner camber link actually lowers the roll center (trust me on this-i have a cad drawing to prove this)-but it does not work as pronounced as lowering the inner hinge pin.

2. tires with less side wall--for example jaco blues has less side grip then rp's.

but the number one thing to do imo is to lower those inner hinge pin first.
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Old 01-12-2009, 08:27 AM   #14
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TYRES ARE THE MOST IMPORTANT ASPECT IN THE CARS HANDLING
THEY ARE WHATS TOUCHING THE GROUND!
EVEN IF YOU CHANGE THE INNNER PIN TO THE LOWER SETTING U WILL TRACTION ROLL IF YOUR TYRES ARE TOO BIG

TINY TYRES BUD! JUST DO IT
I RAN ON A TRACK WITH INCREDIBLE HIGH TRACTION LIKE IVE NEVER SEEN BEFORE (I WAS ROLLING FOR THE FIRST TIME)
I TRIED CHANGING EVERYTHING ON THE CAR SO IT WONT ROLL
NOTHING WORKED!
EXCEPT RUNNING RUBBER BAND TYRE SIZES!

ALL THE LOCAL GUYS WERE FLYING ROUND THE TRACK AND SOMEONE
ACTUALLY OFFERED TO GIVE ME A SET OF TYRES WHICH LOOKED LIKE JUST RIMS (I DECLINED AND THOUGHT HE WAS JOKING)

ON THE WAY HOME AFTER THE MEET I WORKED IT OUT
THE NEXT TIME I RACED THERE MY CAR WAS DIALED
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Old 01-12-2009, 08:33 AM   #15
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Very good gentlemen!

I shall decrease chassis roll (by whatever means) and use less compound on the outside half of my front tires first.

also I found that putting CA on the edge of the front tires helped A LOT getting rid of the problem without altering the handling of the car. good luck.
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