Took off the rear tires saturday night while fixing the car to attempt to do the brakes and what do i find? Appears to me and a few others that i have 2-piston aluminum calipers....WTF? should my car have them? do i have(or should i have) single piston calipers up front? Has any GTA recieved 2-piston calipers in the rear brakes? any info would be nice

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Originating member of the SJNEP Crew
Rice..It's whats for dinner!
All new projects put on hold till its fixed..whenever that is
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Tony

 

As far as I know, all 3rd gens with rear disk brakes had single piston calipers. My stock IROCZ with a L98 engine has single piston calipers.

If you absolutely sure that you have dual pistons calipers, then I think that they are aftermarket.

I assume that you are NOT the original owner of this car, otherwise you would know that they are OE.




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'87 L98 TPI IROCZ, AFR190 heads, 3.70 gears, ZZ9 cam, 2400 Art Carr TC, SLP 1 3/4" headers, SLP cat-back, no cat, no AC, no MAF screens, Accel manifold base & SuperRam, Edelbrock double roller timing chain, MSD ext coil & distributor, trans cooler, 52mm TB with airfoil, TB coolant bypass, AFPR(58psi), K&N filters, Hotchkis lowering springs, my custom chip, Lay Ind. ram air kit, SS Brakes 1LE upgrade 12" rotors dual piston calipers, 265/45R16 Kumho V700 tires.
ET 13.39sec @ 107.21mph
'90 Eagle Talon AWD, no rust thru 9 winters
'99 Camaro SS, red, 6-spd, T-tops, Mcleod clutch, Pro 5.0 shifter, MAF processor, Direct Flow airlid, K&N filter, next mod: 4.10 rear gears
313.7Hp & 320.6ft-lbf, ET 13.55sec @ 105.1mph

 

I agree, they're 1-piston aluminum calipers. They have fins on the outside of the calipers and the rotors are almost 12" in diameter. Standard equipment for a GTA of that year.

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Greg Westphal
'87 IROC 305TPI/A4

 

thats what i thought...these are 2 piston though....and unfortunatly i'm not original owner but i could always swing by his house to ask...i remember where he live...i think

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Originating member of the SJNEP Crew "Welcome to Understated Sounds and Performance"
Rice..It's whats for dinner!
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***AOL IM RiceEatinGTA***
Tony

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