[SuperMacGuy]

Dammit so I am trying to fix my brakes, and seriously considering the C7 z51 brake upgrade. Which according to peeps on LS1Tech seems to fit 17 inch wheels. EXCEPT I look at my CCW wheels and see there is a 1/2 inch "inset" bump on the inside of the barrel. (IMG:http://www.frrax.com/rrforum/style_emoticons/default/rant2.gif) (IMG:http://www.frrax.com/rrforum/style_emoticons/default/banghead.gif) I went with 17s when I got them b/c they generally fit and I thought I'd be good with them. I didn't buy the new brakes yet but man I am upset. I don't want to have to sell these (along with a set of extra tires) just to buy 18s and spend even more money.

[79T/A]

I’m 50/50 on your situation. Yeah, stock brakes with good pads are capable (I never felt that way), but upgrading to a wilwood race kit was the best thing I have ever done for the car. Confidence inspiring brakes, that require little to no maintenance and the consumables last a million times longer. I was constantly replacing parts when I ran stock brakes (spread calipers, thin pads that didn’t last, junk rotors.)

I know you were looking at the C7 stuff as a budget upgrade, but I know wilwood makes lots that would fit your wheels. Yes, much more expensive but worth it in my opinion.

[Mojave]

I’m 50/50 on your situation. Yeah, stock brakes with good pads are capable (I never felt that way), but upgrading to a wilwood race kit was the best thing I have ever done for the car. Confidence inspiring brakes, that require little to no maintenance and the consumables last a million times longer. I was constantly replacing parts when I ran stock brakes (spread calipers, thin pads that didn’t last, junk rotors.)

I know you were looking at the C7 stuff as a budget upgrade, but I know wilwood makes lots that would fit your wheels. Yes, much more expensive but worth it in my opinion.

A fixed caliper upgrade might give hm the pedal feel he wants (if wheel bearings are in good shape) and a race caliper that uses thick race pads could reduce servicing requirements, but a bigger rotor than a stock LS1 12" rotor isn't needed for autocross, and will only slow the car down by increasing unsprung rotating weight. If this is a dual purpose track/AX car, then bigger brakes might certainly be worth it, but for AX only, a bigger rotor gives you nothing in this application.