I just installed a new OEM equivalent clutch and resurfaced the flywheel. From what I understand it seems that a 500 mile break in is needed before any aggressive driving should take place. Now to me 500 miles is pretty vague. I could go out on a large highway and get 500 miles and only shift the car 100 times or I could drive around the city and shift it 2000 times. Is the clutch breaking in while engaged and under load or is it the amount of times it gets engaged?

You see my problem is the car normally will not see 500 miles in a year, it's basically a toy/backup. I tinker on it a little through the month then I take it to the drag strip. I'd like to go next week but I'll be lucky to hit 250 miles before then, and this is driving the car every day. I could get 500 miles on it but I don't feel putting around on the highway is an effective way to break it in. Or is it?

 

Well, i'm getting a clutch soon, and the second it comes back from the dealer, my dad's teachin me heel-toe...

 

I think it's heat cycling that'll break it in, so I'm guessing a hundred fairly easy stop light takeoffs would do it. I don't think going on the highway is best. Maybe use it as an excuse to go drive a mountain road and do a lot of shifting. smile.gif

I would say that 100 miles of actually having to shift regularly would be more than enough.

 

Or you could just dump it a few times....

 

Well, I'm racing it next week regardless of how many miles are on it. I should have more than 100 miles of pure city driving though.