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TRD radiator caps?

TRD radiator caps?

Postby alltrac92 » Fri Oct 03, 2008 9:09 pm

TRD website list two radiators caps

PTR04-00000-02 21.3 psi
PTR04-00000-01 18.5 psi

Which is the better one to use?
Does anybody know what the stock cap psi rating is?
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Postby alltrac92 » Fri Oct 03, 2008 9:13 pm

I checked stant's website and it said a stock replacement cap is 16 psi
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Postby TRDSleeper » Fri Oct 03, 2008 9:47 pm

I got the 18.5 psi TRD radiator cap last month. I had trouble deciding which one to get. The stock cap is 1.0 bar=14.5 psi so jumping to 18.5 psi seems reasonable to me. I was worried that the 21.3 psi might be too much pressure and cause some problems as the years go by.
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Postby Dawgz » Fri Oct 03, 2008 9:52 pm

Im sorry, but i may be mistaken....i thought these TRD Caps were just for aesthetics?
--=Black on Black=-- (Sold)
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Postby Mr_Chunkz » Fri Oct 03, 2008 11:10 pm

Dawgz wrote:Im sorry, but i may be mistaken....i thought these TRD Caps were just for aesthetics?


supposedly they increase pressure on the coolant which make your car run cooler somehow
screw it i think it looks cool.
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Postby lexmex » Tue Oct 07, 2008 3:08 pm

You won't notice much of a measureable blip unless you also go with a TRD Thermostat. I actually went with a Tom's Radiator Cap.

Technically, what the radiator cap is supposed to do is allow the radiator to cool better by raising the valve opening pressure a bit more.
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Postby Camry Racing » Tue Oct 07, 2008 8:00 pm

found them on ebay
http://cgi.ebay.com/ebaymotors/Toyota-C ... otohosting
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