Which Radiator cap to choose with Koyo Radiator??

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JDMbyBlood
Posts: 85
Joined: Tue Oct 03, 2006 2:47 pm
Car: 93 240sx Coupe

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Hey guys what's up. I did a search and only a couple posts came up. I was surprised that was not much talk about the diffrent brands of radiator caps that are out there to choose from. I was looking around for a radiator cap for my KOYO radiator that's going in my 240 with a SR. After looking around, I found the following brands:*BLITZ*Greddy*ARC*Buddy Club*Nismo*Cusco*Apexi*Skunk2I'm sure most are no different then the others in performance wise, but some cost 2-3 times more then another. I'm leaning towards the Greddy, but thought I would check with you guys and see what you are using and get your input on the subject. I asked the same question in FA, but not much going on overe there. Maybe I'll have better luck over here. Thanks...


Emperor_Tha
Posts: 834
Joined: Wed Nov 22, 2006 12:56 pm

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i got greddy, i pressure test the cap before i put it on. if i remember it was 19 or 20 psi that it hold.

exode
Posts: 253
Joined: Mon Oct 02, 2006 10:32 am
Car: 90' 240 w/ 400hp SR20DET

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If you live in a cooler climate area and don't have alot of heat mods (bigger turbo, added boost, blah blah) you honestly would be fine with the 300ZX Twin Turbo Rad Cap, which you can get at autozone for like $12. Its rated at 1.1bar (bout 16 psi)

I have alot more power adding (and heat adding) mods installed and I run a lot more boost. I run the same radiator and have a Nismo rad cap which is rated at 1.3 bar (19 psi give or take).

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9240sx
Posts: 2676
Joined: Wed Dec 10, 2003 4:06 am
Car: What i believe to be the cleanest s13 in the world.

SR20DET + RS*R-Apexi-Nismo-Trust-HKS= 100% pure love
Location: New Mexico

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Pretty simple part,And all trusted company's listed...I would go with what ever's cheaper...I have a Greddy and i love it looks good and has worked like new since i bought it over 6years ago..I have a few friends with the Nismo cap and the only thing they dont like about it is that it has a sticker on top and it will start to peel off with time..

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CMG
Posts: 1259
Joined: Tue Jan 16, 2007 6:48 pm
Car: 1989 240sx Hatch w/ Redtop

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I have a bunch of different ones from .9 to 1.3 to 1.6. They all work fine. As far as looks though, I think Greddy is best. Nismo is great, but the sticker starts to fade and peel. The Greddy one has a metal name badge which will not peel, and I've seen them for under $30 too.

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White Comet
Posts: 19033
Joined: Thu Jun 15, 2006 7:22 am
Car: fc, s13 and mazda6, Sierra
Location: lancaster, pa

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i went w/ koyo one to match the koyo rad


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