recomended mods for sm auto x
Wow, thanks for all the great responses. The main reson I go out to autoX is to have fun, but when I get home and see that I am in the top 5 in my class I start to feel very competitive. I know I could place higher in some of the slower classes. In this sport the money is best spent on another set of wheels with r compound tires. I just dont have the $ for that, so I guess I willl just hang on to my money and wait untill I get more experience.
Thanks again for all the great advice.
Thanks again for all the great advice.
If you are looking for pads I use Cobalt GT Sports. They are loud as hell, but they stop great even when cold, and they are cheaper than Ferodo.

Cobalt Website
Cobalt spec(VR)
SKU: CRB.VR.D961
Weight: 5 lbs
Price: $299.00 (front)
Price: $169.00 (rear)
Product Details
Cobalt spec(VR) is a professional motorsports compound designed for GT sportscar, formula car, sport racer, and prototype road racing, featuring an extremely strong initial bite and sustained braking torque, excellent modulation and release characteristics, a very linear pedal feel for consistent braking performance, and very high fade resistance. The spec(VR) has a virtually flat torque curve, with a coefficient of friction of 0.64mu, with fade free performance in excess of 1550F. Additionally, the spec(VR) is extremely disc friendly and has very good wear rates. Suitable for most GT-class vehicles, formula cars (Atlatic, Continental, Mazda, et al.), sport racers (Radical, Stohr, WSR, et al.) and prototypes (Daytona Prototype, ALMS P2, et al.). **
Cobalt GT-Sport
SKU: CRB.GTS.D1001
Weight: 5 lbs
Price: $175.00 (front)
Price: $109.00 (rear)
Product Details
Cobalt GT-Sport is a proven, class-winning ProSolo Autocross compound exhibiting good cold performance, a strong, aggressive initial bite, linear pedal feel with excellent modulation, and high fade resistance. Along with its excellent performance, the GT-Sport compound is rotor friendly and has very good wear rates over a broad operating temperature range. For the serious autocross driver, the GT-Sport will let you take back the time under braking! Also suitable for spirited street driving (i.e. canyon and mountain drives, etc.) and novice to intermediate level HPDE events on most vehicles (under 3000lbs).

Cobalt Website
Cobalt spec(VR)
SKU: CRB.VR.D961
Weight: 5 lbs
Price: $299.00 (front)
Price: $169.00 (rear)
Product Details
Cobalt spec(VR) is a professional motorsports compound designed for GT sportscar, formula car, sport racer, and prototype road racing, featuring an extremely strong initial bite and sustained braking torque, excellent modulation and release characteristics, a very linear pedal feel for consistent braking performance, and very high fade resistance. The spec(VR) has a virtually flat torque curve, with a coefficient of friction of 0.64mu, with fade free performance in excess of 1550F. Additionally, the spec(VR) is extremely disc friendly and has very good wear rates. Suitable for most GT-class vehicles, formula cars (Atlatic, Continental, Mazda, et al.), sport racers (Radical, Stohr, WSR, et al.) and prototypes (Daytona Prototype, ALMS P2, et al.). **
Cobalt GT-Sport
SKU: CRB.GTS.D1001
Weight: 5 lbs
Price: $175.00 (front)
Price: $109.00 (rear)
Product Details
Cobalt GT-Sport is a proven, class-winning ProSolo Autocross compound exhibiting good cold performance, a strong, aggressive initial bite, linear pedal feel with excellent modulation, and high fade resistance. Along with its excellent performance, the GT-Sport compound is rotor friendly and has very good wear rates over a broad operating temperature range. For the serious autocross driver, the GT-Sport will let you take back the time under braking! Also suitable for spirited street driving (i.e. canyon and mountain drives, etc.) and novice to intermediate level HPDE events on most vehicles (under 3000lbs).
Last edited by evo8usa; Jul 20, 2005 at 08:06 PM.
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this is good to know.. I dont really want to have to build my car around a set of rules.. its really the boost control rule that knocks me out specifically. I just want to have fun.. and at the same time not get killed to badly everytime im out.. im hoping i will be ok running in street modified once i have some hoosiers on the car.
Originally Posted by jbrennen
First, note that at the local level, your car is probably a pretty decent Street Modified car. Sure, there are a few monster SM cars around, but they are the exception rather than the rule. Most of the cars running SM around the country in local events are going to have an uphill battle against a stock Evo on R compounds...
Second, get all of the seat time that you can, and find out where you can get instruction in autocross driving. Don't mess around with an HPDE or track day -- road racing and autocrossing are very different skills and some of the things that work well in autocrossing could get you killed on a road course.
Don't modify the car based on what somebody on the "net" tells you to do for autoX. You're just starting out, and you won't be able to evaluate the changes anyway. Give yourself some time to figure out how serious you want to take this autocross thing. If you're not serious, just modify the car the way you want and have fun driving it around the cones. If you find that you want to seriously compete for wins, you'll have to evaluate the car with respect to your own driving style, and make your own decisions on modifications. Some folks love a car that's loose, others don't. Do you know what you want?
Second, get all of the seat time that you can, and find out where you can get instruction in autocross driving. Don't mess around with an HPDE or track day -- road racing and autocrossing are very different skills and some of the things that work well in autocrossing could get you killed on a road course.

Don't modify the car based on what somebody on the "net" tells you to do for autoX. You're just starting out, and you won't be able to evaluate the changes anyway. Give yourself some time to figure out how serious you want to take this autocross thing. If you're not serious, just modify the car the way you want and have fun driving it around the cones. If you find that you want to seriously compete for wins, you'll have to evaluate the car with respect to your own driving style, and make your own decisions on modifications. Some folks love a car that's loose, others don't. Do you know what you want?
Originally Posted by bdking57
this is good to know.. I dont really want to have to build my car around a set of rules.. its really the boost control rule that knocks me out specifically. I just want to have fun.. and at the same time not get killed to badly everytime im out.. im hoping i will be ok running in street modified once i have some hoosiers on the car.
Everyone always told me to learn on Street tires first, then switch to race tires.
Originally Posted by evo8usa
Everyone always told me to learn on Street tires first, then switch to race tires.
If you are prepared for the cost of autocrossing on R compounds, go for it. Nothing will teach you to autocross on R compounds quite like autocrossing on R compounds. I switched to R compounds after just 5 events on my stock A046 tires, and I basically had to relearn how to drive. But I learned quickly that autocrossing on street tires requires a different style than autocrossing on R compounds. Further "practice" on street tires would have been wasted in my case.
But note that autocrossing on R compounds can get very expensive. If you always want to run on top level R compounds -- buying new tires and discarding or selling them when their performance goes away -- figure on spending at least $25 for every autocross run you make.
Originally Posted by jbrennen
But note that autocrossing on R compounds can get very expensive. If you always want to run on top level R compounds -- buying new tires and discarding or selling them when their performance goes away -- figure on spending at least $25 for every autocross run you make.
Running on street tires is sort of a false economy. If you can get over the initial cost of the extra set of wheels and tires, it is not that much more expensive to run R-compounds, especially if you go for a more conservative tire choice like an RA1 or Victoracer. And you get to go faster and your street tires will be a lot happier
Last edited by jwtodd60; Jul 21, 2005 at 05:36 AM.
Originally Posted by jwtodd60
Running on street tires is sort of a false economy. If you can get over the initial cost of the extra set of wheels and tires, it is not that much more expensive to run R-compounds, especially if you go for a more conservative tire choice like an RA1 or Victoracer. And you get to go faster and your street tires will be a lot happier

although the inside edges are looking pretty slick at this point.
if my co-driver and I had a bigger budget, we could have easily bought another set of r-compounds, but it was not worth it since the regional championship is almost over and I doubt we will be going to the nationals this year...
Originally Posted by bdking57
this is good to know.. I dont really want to have to build my car around a set of rules.. its really the boost control rule that knocks me out specifically. I just want to have fun.. and at the same time not get killed to badly everytime im out.. im hoping i will be ok running in street modified once i have some hoosiers on the car.
If you continue running with teh BMW club in marina, no worries, hell I might be joining you if we get 9 runs each
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From: Del Monte Beach, Monterey, CA
Where in monterey are you?..you should come join us in marina.. I love the courses because they definately were not set up by a miata owner. The courses are pretty large and open with long straights, round abouts, etc and its on a pretty good surface.
I live in toro park are for now. Have you been going to the meats in sand city.. there is an AWD meet just about every weekend at the starbucks there. I think I will take your advice and run the slush series... then start running on r comps next year, although im getting pretty anxious to get some bigger tires.
I live in toro park are for now. Have you been going to the meats in sand city.. there is an AWD meet just about every weekend at the starbucks there. I think I will take your advice and run the slush series... then start running on r comps next year, although im getting pretty anxious to get some bigger tires.
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