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I'm attempting to 'design' a piece of roll cage. What is generally considered the minimum (smallest - tightest) radius bend that can be made to a piece of 1 1/2" DOM roll cage tubing. Not the apsolute min, but what most tubing benders can handle. Please state the measurment is inside, outside or...

Guys: My car is a 77 280z. It came stock with electronic ignition. The stock black box overheats when you rev the car up near redline and goes bonkers until it cools off. Motorsports carries a Crane for this application but it has an external controller box. I'd perfer it all contain inside the...

I've read an awful lot on this site about IT going national, the pros and cons of staying regional only and going national and even the suggestion of desolving national or regional status for all classes. I do NOT want to rehash that debate. What I am curious about is why IT was originally...

I know this has been asked before. I'm trying to order brake pads and shoes for my car (77 280Z ITS). SummitRacing has Hawk blues for the front $110. I also need rears. Carbotech, Porterfield? Anybody know a good source for these or any other road race pads and shoes? How about it Z guys, what...

I'm trying to build a motor for my car. I know hardware is open but can I use studs for the head instead of head bolts?