2nd Generation Specific 1986-1992 Discussion

radiator confusion

Old 09-12-2012, 06:46 PM
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Default radiator confusion

I think i'm going to upgrade the radiator before I get into any performance mods in my FC. It's the simplest, easiest and will help with the weak cooling system the cars have. Im looking for upgrades I can put into the car that dont directly effect the engine because at the beginning of the year i plan to buy a T2 swap. Ebay and Racing Beat both list different P/Ns for KOYO radiators and none of them have a pic of the actual radiator. Anyone know which one will fit? KOYO's site doesnt list a radiator avail for any RX-7s
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Old 09-13-2012, 12:38 PM
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Default Re: radiator confusion

Only difference is S4 or S5, because of the radiator cap and filler neck position. S4 is positioned by the thermostat housing cover, the S5 is on the radiator itself.

Radiator is the same model whether it's NA or Turbo.

Cooling System - 1986-92 Mazda RX-7 Performance Parts

The aftermarket radiator will be a bit thicker than OEM, but uses the OEM radiator bracket to install. The OEM fan shroud will be pushed in slightly.
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Old 09-13-2012, 02:12 PM
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Default Re: radiator confusion

Originally Posted by recian View Post
Im looking for upgrades I can put into the car that dont directly effect the engine
These cars respond really well to suspension upgrades (plus most cars' suspension are over 20 years old).
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Old 09-13-2012, 05:35 PM
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Default Re: radiator confusion

i was at racing beat, that link looking. I'll just buy from them when it comes down to it. I figured i could get the same p/n on ebay cheaper but it seems to be about the same price minus the shipping and ebay cant seem to get the p/n to match RB's site
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