What brand of pad are you running? I have them and am doing the 13 in Vette rotor upgrade. I would like to try Hawks. Just looking for some input.

Thanks

 

Hawks, front and rear, for me.

JamesC

 

I run Porterfield R4 (race pad) on my 1le equiped racecar.

I just installed some R4-S (their street pad) on my '02 T/A streetcar this past Sunday, so no feedback on those yet.

 

HAWK HPS

tell me more about this 13" rotor upgrade, whats needed?

 

I'm assuming the OP is speaking of the rears--at least I'm unfamiliar with a 1LE front upgrade of that nature.

JamesC

 

Check with EB Miller, you can use your 1 LE caliper, different abuntment brackets and hubs, and install a 13 in HD Vette rotor.

 

Ah, here we go:

http://www.flynbye.com/catalog/i17.html

Thanks for the heads-up. So essentially the rotor is simply larger. I wonder how much real world difference that would make?

JamesC

 

I'm guessing it would be a noticable difference. Any time you can move the caliper farther away from the spindle with a larger rotor you increase leverage. The farther you get the faster that portion of the rotor is traveling and there is also an increase of surface area.

 

shoot.. for almost a $1000 for another 1"... not worth it to me

 

No-No, I already have the 1LE set-up, all you need is the hubs, brackets, and rotors. And I found a good deal from a place, rotorpros, and got dimpled/slotted 13 in front and 12 rear LS car(For the rear drum to disc swap) for $200 shipped for all four. Now that is pretty cheap, and the car is not a big auto-x or track car, so they should hold up to some street driving, and they came recommended from my guys on the caddie (CTS-V LS-6) board.

Once I am all together I will let you know how they hold up.

 

I'd be curious about this. Yes it may have more leverage, but at what expense? I can see there being less pad life, and the pads getting hotter than usual since that part of the rotor is moving faster (albiet fairly slightly). There is no (pad to rotor contact) increase in surface area.

 

I think pad life would be exactly the same. The vehicle travelling at a given speed requires a set amount of energy (heat/friction) to stop it. With the increased rotor size this heat is applied to a larger area of the rotor which will help with fade resistance. And given that the outer edge of the larger rotor is moving faster, there is less pad force(per amount of time) required as the distance the pad scrubs on the rotor is longer, comparing equal speed stops. Mechanically speaking it is less "work" for the caliper/pad with the larger rotors. The benefit being is if you wanted to make a faster stop, the larger rotor will have more braking force before locking up.