4 piston or Single piston, how to tell?

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11-20-2002, 02:40 PM

REZN8R

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I've got a '88 GTU and I'm not sure which calipers are on it. They're aluminum with cooling fins on the outside. Anyone a certified RX-7 guru?

11-20-2002, 04:12 PM

Rob x-7

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Those are probably the 4 piston, if the car has 5 lug wheels it has the 4-piston brakes. They say Mazda on them right?

11-20-2002, 04:51 PM

j9fd3s

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yup, it sounds like the 4 piston to me too

mike

11-20-2002, 06:21 PM

cymfc3s

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if its got cooling fins, its the 4 piston. The single piston fronts look like big versions of the rear calipers.

11-21-2002, 01:40 PM

REZN8R

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They're 5 lug wheels. I think they say Mazda on them, not sure. 4 pistons make me happy

11-21-2002, 04:11 PM

Rob x-7

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Besides saying Mazda on them, if you look at the actual piston itself, you see it will 2 'circle' type of things on them, those are the pistons, 2 on each side of the pad for a total of 4.

Single have on circle, or just squared off in shape and not rounded at all.

Im talking about the outside of the caliper by the way.

11-24-2002, 10:21 PM

dysthymia

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Sounds like the 4-pot to me. Nice!

11-25-2002, 07:38 AM

Baldy

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Glad to see this thread...I just got a 5-lug conversion that (evidently) has 4-piston calipers. Sweeeet. Only downside is that someone painted them purple.