rotor/caliper question - 3000GT/Stealth International Message Center

Black_Sunshine · 03-20-2008, 08:12 AM

our stock tt rotors measure 30mm wide. do you think we could use 32mm rotors without spacers in the stock caliper? i asked this in the general forum, but i'm guessing no one knows. hope to get an answer from the road racing masters

Boostaddict · 03-21-2008, 09:25 AM

I personally can't tell you the 100% answer to that (and I'm certainly not a road racing expert). My assumption is based on my own experience though. I don't think a new set of standard pads would fit with 32mm rotors (its just too tight). However, some pad clearancing aught to get you there (just don't breathe the brake dust).

Turbo Powered · 03-21-2008, 12:34 PM

The WIDE rotor kit comes with machined spacers that fit between the two caliper halves (and extra req'd O-rings). SCE sold me an extra set to put into a spare caliper set, maybe they'd sell you just those pieces. Very easy to install. Depending on where the centerline of the rotors is, you may need the spacers for the caliper mounts that also come in that kit.

Black_Sunshine · 03-21-2008, 03:02 PM

Quote:

Originally Posted by Turbo Powered

The WIDE rotor kit comes with machined spacers that fit between the two caliper halves (and extra req'd O-rings). SCE sold me an extra set to put into a spare caliper set, maybe they'd sell you just those pieces. Very easy to install. Depending on where the centerline of the rotors is, you may need the spacers for the caliper mounts that also come in that kit.

thanks. i think the WIDE kit is 35mm tho right? i'm looking to use a 32mm rotor.

Turbo Powered · 03-24-2008, 12:44 PM

Quote:

Originally Posted by Black_Sunshine

thanks. i think the WIDE kit is 35mm tho right? i'm looking to use a 32mm rotor.

The whole idea is to be able to put new pads on and have them fit. The spacers for the 35 mm rotors will do that. The only issue is whether the caliper pistons will extend too far out when your pad wears down to the backing plate metal. Maybe SCE can answer that question for you. Or you could take the spacers for the 35 mm rotors and machine them down thinner to be the perfect size for a 32 mm rotor.

2 mm is only 0.079 inches, so that's less than 0.040" per pad clearance lost. Are you sure the stock calipers and new pads won't clear that with the pistons fully depressed?

Black_Sunshine · 03-24-2008, 01:05 PM

Quote:

Originally Posted by Turbo Powered

2 mm is only 0.079 inches, so that's less than 0.040" per pad clearance lost. Are you sure the stock calipers and new pads won't clear that with the pistons fully depressed?

that's what my question is

. i have no idea if it would or not. lol

03-20-2008, 08:12 AM	#1 (permalink)
Black_Sunshine Boost Happy Join Date: Jan 2002 Location: Bay Area CALI Drives: a japanese dodge Trader Rating: (62)	rotor/caliper question our stock tt rotors measure 30mm wide. do you think we could use 32mm rotors without spacers in the stock caliper? i asked this in the general forum, but i'm guessing no one knows. hope to get an answer from the road racing masters __________________

03-21-2008, 09:25 AM	#2 (permalink)
Boostaddict Super Member Join Date: May 2002 Location: Around Detroit, MI Drives: First e16g 3/S Trader Rating: (38)	Re: rotor/caliper question I personally can't tell you the 100% answer to that (and I'm certainly not a road racing expert). My assumption is based on my own experience though. I don't think a new set of standard pads would fit with 32mm rotors (its just too tight). However, some pad clearancing aught to get you there (just don't breathe the brake dust). __________________ Quaife Front LSD for AWD Ksport Suspension Kits Specializing in 3/S Suspension, Billet Transmission Shift Forks, 300M Output Shafts, Front AWD and FWD LSD, Transmission Rebuild Parts, STOPTECH Brake Kits, Big Reds, and Custom Brake Upgrades! More Products to Come. 1993 3000GT-VR4: AEM EMS, etc 663 awhp, 607 tq (retired tdo5-e16g's) 10.835@132.69 -26psi

03-21-2008, 12:34 PM	#3 (permalink)
Turbo Powered been here way too long Join Date: Nov 2003 Location: PA Drives: Slower-@#&! Points! Trader Rating: (18)	Re: rotor/caliper question The WIDE rotor kit comes with machined spacers that fit between the two caliper halves (and extra req'd O-rings). SCE sold me an extra set to put into a spare caliper set, maybe they'd sell you just those pieces. Very easy to install. Depending on where the centerline of the rotors is, you may need the spacers for the caliper mounts that also come in that kit. __________________

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