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Stevo
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« on: July 27, 2012, 02:45:33 PM » |
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OK, the slippery slope has begun and I'm sliding fast. I'm looking to get some additional negative camber in my Shelby GT. http://www.ingallseng.com/81260-14mm-fastcam-bolts_pair.html Will these conflict with F-stock rules? Ford Racing says to slot the bottom strut mount and use stock bolts; I've been told to get the cam bolts instead. I'm sure this is covered some place in the rules but I'm challenged to figure it out....;^) -S |
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pzahornasky
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« Reply #1 on: July 27, 2012, 03:36:42 PM » |
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You cannot use the cam bolts.
If the factory method is to slot the struts, then that is what you have to do.
Also, per the rules, when you slot, you have to stay within the Ford specified range of camber for the vehicle.
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_______________________
Paul Zahornasky
29 HS - 2008 Mazda 3s
NER Regional Executive
NER Director of Marketing and Communications
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davidh729
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« Reply #2 on: July 27, 2012, 06:03:42 PM » |
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I'm not sure slotting the strut mount would be legal either. "Ford Racing" typically isn't the same thing as "Ford Factory". The language in 13.5 about no offset bushings and not changing suspension geometry with aftermarket parts would suggest that unless slotting the strut bottoms is a permitted procedure in the factory service manual or a ford technical service bulletin its probably not legal. Getting enough camber out of stock vehicles is often a challenge or not possible. Have you upgraded the front anti-sway bar? The stiffer the car is the less it'll roll and you'll need less camber.
Dave
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pzahornasky
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« Reply #3 on: July 27, 2012, 06:48:26 PM » |
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Good point Dave - missed the Ford Racing part.
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_______________________
Paul Zahornasky
29 HS - 2008 Mazda 3s
NER Regional Executive
NER Director of Marketing and Communications
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focus137
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« Reply #4 on: July 27, 2012, 09:42:02 PM » |
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Why don't you ask Mark Daddio what he has done on his F Stock Mustang ...
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jmartynuska
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« Reply #5 on: July 27, 2012, 10:49:49 PM » |
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Another option if you're in the market for parts - and advice - give Sam Strano at Stranoparts a call.
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45BS '89 Corvette
45FS '97 Trans Am, Retired
45GS '95 Probe, distant memory
"This is a carburetor. Take it apart. Put it back together. Repeat until you're normal". - Hank Hill
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Stevo
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« Reply #6 on: July 31, 2012, 10:50:39 AM » |
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Thanks for the info guys. I had a feeling the cam bolts would be a violation. The Ford Racing thing, I dont know, I'll have to look into that again. I had assumed that its a factory authorized procedure but I'll have to check the fine print.
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Stevo
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« Reply #7 on: July 31, 2012, 11:59:30 AM » |
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Hi all, looks like the fastcams are going back to the bin; they are not allowed. However, Ford Racing says the procedure in the referenced document is an "acceptable" method for increased camber adjustment. Specifically document M-1800-A says. From document M-1800-A "Attention: if camber adjustment is desired, then slotting the strut at the lower mounting plate is an acceptable method." The PDF goes on about the 4 or so procedures involved. Whats interesting is that they say not to slot beyond the factory marked 'etchings'. Obviously they intended for people to do this if so desired. The procedure requires more work but no new parts. If anyone has the time to review this one page document I'd appreciate the asssist very much. Is there a procedure within the SCCA to address this kind of thing? http://www.fordracingparts.com/download/instructionsheets/FordInstShtM-18000-A.pdfMaybe I'll have to call Sam, the man... Strano. |
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Stevo
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« Reply #8 on: July 31, 2012, 12:20:14 PM » |
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Allrighty, I called Sam. He said that I shouldnt go on the internet, LOL. He was very helpful. He said Ford has OEM fastcam bolts and that they are legal for F-Stock. He also mentioned a new Bar and Konis, all allowed under F-Stock. Next year I'll take his parts and advice. He also said you can slot the strut. I can go either way. If anyone can contradict this PLEASE, tell me now. The parts are not expensive but the round trip alignments are both time consuming and expensive.
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« Last Edit: July 31, 2012, 02:14:40 PM by Stevo »
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newportroyal
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« Reply #9 on: July 31, 2012, 01:42:08 PM » |
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You shouldn't need to constantly align the car. Negative camber doesn't really eat tires, its the toe that eats them.
Lots of camber, and zero toe (or close to zero) shouldn't cause any issues with excessive wear, or funny behavior on the street.
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Ken
#72 DS/RTA 2011 WRX
#72 STC 1992 Civic Si
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crxracerb
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« Reply #10 on: July 31, 2012, 02:31:34 PM » |
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excessive negative camber will cause the tires to wear on the inside edge if daily driven
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Did you eat a bowl of stupid for breakfast???
EP REDEYE SF CRX #???
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Chang
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« Reply #11 on: July 31, 2012, 09:48:49 PM » |
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Go with what Sam Strano says and recommends. I would take his word as gospel.
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Chang Ho Kim
FunHondas Racing
24DS 00 ITR, 24STC 89 Civic Si
24MF 90 Civic GSR, 24PF 89 Civic Si
89 CRX HF 118mpg
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Leafy
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« Reply #12 on: August 01, 2012, 07:17:03 PM » |
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excessive negative camber will cause the tires to wear on the inside edge if daily driven
If you can get that much camber is a stock class car, something's broken/bent, its a factory freak, or you're cheating (baring anything strangely model specific). |
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WPI BS/ME '12 MS/ME '13 WPI SAE Metal domination specialist
#63 STR 1994 Mazda Miata R mild SSM build
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Beans
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« Reply #13 on: August 04, 2012, 11:02:47 AM » |
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excessive negative camber will cause the tires to wear on the inside edge if daily driven
want even tire wear? drive faster in the corners! |
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Scott
1995 Miata
#198 ES
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Gus Heck
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« Reply #14 on: August 06, 2012, 01:06:35 PM » |
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or funny behavior on the street.
In dry weather. Put a puddle under one wheel but not the other and increased camber does do funny things. If your street tires are good wet tires with more than half their tread however that will help a lot. My maxed front camber + horrible-in-the-wet to begin with A048's which are downright exciting in a heavy rain. This is very closely related to my hasty exit from the event and hour spent in a sub-shop watching it rain buckets yesterday. |
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