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15 Mar 2007, 19:08 (Ref:1867521)
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#1 | |
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Rookie
Join Date: Dec 2006
Posts: 38
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Improving traction
I'm currently designing a RWD race car and one of the main areas is to get as much traction as possible out of corners. It has double a-arm suspension all round. I try to move as much weight as possible to the rear but do you have some other tricks that can be done to design of the chassis to improve traction?
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15 Mar 2007, 22:22 (Ref:1867721)
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#2 | ||
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Veteran
Join Date: Jul 2006
Posts: 4,418
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what type of car is it? How much RWHP & RWTQ are you looking at?
What size tires are you allowed to use? actully a well corner ballance race car handles better. |
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__________________
"When the fear of death out weighs the thrill of speed, brake." LG
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15 Mar 2007, 22:54 (Ref:1867749)
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#3 | ||
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14th
1% Club
Join Date: Jul 2001
Posts: 42,900
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200kg in the boot?
 Do you also have a skitish rear  under braking when the weight it transfered to the front?
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__________________
Seriously not taking motorsport too seriously.
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16 Mar 2007, 07:46 (Ref:1868007)
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#4 | |
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Racer
Join Date: Nov 2006
Posts: 262
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MM Left and Right corners? Black stuff or Dirt. Cof G placement (and RC') are important to get the weight transferring around. Shock control is the big winner in controlling weight transfer these days. I don't mean that you have to spend squillions of $ on shocks but a 'balanced' car is a definate must and I reckon most of the guys here agree with the balance thing just that sometimes it's hard to achieve. The single biggest thing for traction is tyres. What are you planning to use? A balanced package takes time to sort thats for sure..........trikes
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18 Mar 2007, 14:35 (Ref:1870239)
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#5 | ||
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Rookie
Join Date: Dec 2006
Posts: 38
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Quote:
Summary so far, traction is mostly a setup thing so dampers are important ? Last edited by moonman; 18 Mar 2007 at 14:38. |
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18 Mar 2007, 15:57 (Ref:1870296)
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#6 | ||
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Veteran
Join Date: Jul 2006
Posts: 4,418
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too much rear wt, will cause understeer up front.
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__________________
"When the fear of death out weighs the thrill of speed, brake." LG
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19 Mar 2007, 11:44 (Ref:1871291)
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#7 | |
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Racer
Join Date: Nov 2006
Posts: 262
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Sounds like a grass track racer. Yes? Are u allowed to add or regroove the tyres? I have a couple of tricks concerning gooves.
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25 Mar 2007, 20:09 (Ref:1876107)
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#8 | ||
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Veteran
Join Date: Jun 1999
Posts: 727
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anti squat is important too, if the car dont squat it move forward instead of down.
ie, angling the wishbones towards the CofG |
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25 Mar 2007, 20:52 (Ref:1876145)
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#9 | |
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Rookie
Join Date: Mar 2007
Posts: 32
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Geometry and weight distribution are key. You also need tyre data to design your kinematics to work with the tyre. remember that shocks are the final part of the equation - the geometry and spring rates will determine the majority of how the car handles.
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