Steel Control Arms
05-12-2008, 04:36 PM
#17
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05-12-2008, 05:58 PM
#20
Drifting
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why is that not legal? That is a safety modification, someone should protest that. Also, PCA requires cars running with r compound rubber to have gussets on steel control arms.
05-12-2008, 06:29 PM
#21
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And PCA actually recognizes the weaknesses in the OEM parts for track use and allows aluminum arms to be replaced with approved aftermarket replacement arms or appropriately modified early factory steel arms, allowing for the welding of flat metal to reinforce suspension components.
Following PCA's lead, 944 Cup also allows are all cars to use the box welded steel arms for safety reasons.
05-12-2008, 07:02 PM
#22
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Unless the rule states you can, you are not allowed a modification from its stock for competitive advantage in IT class of SCCA. IT class is not a spec class nor one model class. Hope you convince all other car drivers and officials it is only safety and no performance benefit at all. If the unmodified arms last a race, they would say to make sure to have new arms for each race in order to avoid any possibility of a performance benefit.
So race in the Cup.
So race in the Cup.
05-12-2008, 09:43 PM
#23
Burning Brakes
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Ther rabbit guys that race in IT are replacing hubs every weekend or every other because the huibs on the car are too small and overheat, so its not just limited to 944s. The SCCA doesnt like giving cars exceptions to the rules that could be percieved as performance advantages.
05-13-2008, 02:17 AM
#25
Three Wheelin'
Here's a set I did recently. I took some extra time smoothing out the welds hoping it would reduce the chances of stress cracks forming. If it doesn't do that at least it will make them easier to see. Barrels are also reinforced.
05-13-2008, 10:01 AM
#26
Burning Brakes
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While you may be right, youd have to prove to SCCA that it has 0 effect on performance. I dont see the big fuss anyways. The control arm that is pictured in this thread was an original arm. That would put it at, what 20 years old? Maybe more? Replace the arms every year and I doubt youll ever have a failure of the arm.
05-13-2008, 10:27 AM
#27
Three Wheelin'
05-13-2008, 01:58 PM
#28
Race Director
An no it is not legal for SCCA be it ITS or ITA in the case of the 924
Aftermarket control arms in anyway are also not legal in SCCA IT. It has been argued to SCCA about safety, but they have not changed their view point.
05-13-2008, 02:02 PM
#29
Race Director
Yes, I agree. I replaced my steel arms back in 2002 when I started racing. I inspect them visualyl every day and found one with the crack in the barrel. I replace it with a spare. They are cheap enough and simple enough to be disposable.
05-13-2008, 04:53 PM
#30
Drifting
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Page 9 of the rule book states aluminum arms may be replaced with appropriately modified early steel arms
then for the spec 944 rules PCA states steel arms MAY be box welded
so you can read that how you like but I wouldn't run a stock arm with sticky tires and/or good brakes
then for the spec 944 rules PCA states steel arms MAY be box welded
so you can read that how you like but I wouldn't run a stock arm with sticky tires and/or good brakes