Best Radiator Cap

[willz52]

Hey all the rubber on the standard radiator cap has turned to sh*t, just wondering if those 1.3bar caps are any good or if I should just go get a standard one? Am not too sure what the standard ones pressure are rated at anyway.

v3 1997 sti.

[dubbedup]

standard replacement cap is best, i cant rember why the 1.3 are not that flash but im sure someone will advise.

[Guest]

 dubbedup said:

standard replacement cap is best, i cant rember why the 1.3 are not that flash but im sure someone will advise.

If its good from factory with no faults, Don't **** with it, Just replace with a genuine subaru cap

[nztintin]

1.3bar cap makes standard hoses\end tanks etc more prone to exploding

standard 1.1bar? cap is more than adequate for a street car

[Guest]

 nztintin said:

1.3bar cap makes standard hoses\end tanks etc more prone to exploding

standard 1.1bar? cap is more than adequate for a street car

Mines 1.3 bar ???

[kamineko]

the 1.3bar caps have their advantages but you would never see those extremes on the street

and when you do see those extremes on the track, it will tax every other cooling component rated to 0.9/1.1 bar - expect failure

i bought a sti 1.3bar cap in japan but don't see myself ever fitting it

[Scoobydoo]

I believe the ones you get from places like Repco, Supercheap, your local petrol station are 0.9 bar rated.

Again, fine for standard systems. If you get a 1.3bar cap, then you'd also want to upgrade all your water hoses to better silicon ones, then also wait for your factory radiator to sh*t a plastic tank, then get an alloy one

Then you're pretty much set!

[Guest]

 Scoobydoo said:

I believe the ones you get from places like Repco, Supercheap, your local petrol station are 0.9 bar rated.

Again, fine for standard systems. If you get a 1.3bar cap, then you'd also want to upgrade all your water hoses to better silicon ones, then also wait for your factory radiator to sh*t a plastic tank, then get an alloy one

Then you're pretty much set!

Looking at full alloy race radiators at the moment, GC8 wrx silicon hoses should fit my car right?

[Ninja8)]

interesting thread...so u guys reckon that 1.3 bar radiator cap will be swt when running an alloy radiator and silicone hoses?

[Scoobydoo]

Well I can only speak from my own experience, but I'm running the 1.3bar cap, and my radiator sh4t itself. so i upgraded it to an alloy one, and am also running full silicon hoses, so I'm just hoping I don't have any more problems

[nztintin]

if your alooy radiator and silicone hoses are good you should be right, then theres other things that may be the weakest link... i decided against a 1.3bar when i upgraded my radiator and hoses because i figured there was no gain for the risk, the new radiator keeps temps down more than standard anyway

[gotasuby]

well i have gone through 7 radiators with a 1.3 bar cap and have now got a alloy radiator. So i believe that they are not as good for your radiator . never broke a hose though 8)

[R.D]

my geniune cap has rusted, i really dont understand how you can make radiator cap that isnt rust-resistant. Worth getting a new one or not? seems to just be some rust particles floating on top of radiator.

[willz52]

pretty much whats happening to mine, plus the rubber is wearing off it I'll probably just get a new one, worth going to Subaru for it or just get a repco one?

[Ninja8)]

 willz52 said:

pretty much whats happening to mine, plus the rubber is wearing off it I'll probably just get a new one, worth going to Subaru for it or just get a repco one?

i would recommend going genuine?? or autostop or BNT or something??? so factory cap is 0.9 bar?? i might just stick to factory even tho ive got an alloy radiator..like nztining said..no point taking the risk lol.

but yea willz...if u go genuine..could u post up how much it cost? should be around 50??

[willz52]

yea ill try source sumthing out tomorrow.

[Ninja8)]

swt..chur chur ;D

[willz52]

just went to Sublab, 40 bux for the cap so not too bad, 0.9 bar.

[Ninja8)]

swt..cheers for that. guess thats a plan for me 2

[R.D]

hmmm. 40 bucks to replace a slightly rusted one. :-\

no deal

[Guest boostcut]

you can get a perfectly useable one for 5 bux from repco! theres nothing special about your subaru that you need a 40 dollar cap!!

[willz52]

yea I'll probably just go to repco tomorrow get a cheap one, just wanted a price for it to see how much it was.

[NotAWhiteGTB]

I got told that ones that have HKS on them are the best. Either that or ones that come with free monster energy stickers and a flat peak hat...

Seriously though. If you want bling go get a annodised alloy 1.3 bar one.

But if you want something that will do your job more than suffciently, go and get a 0.9 bar cap. You are more than likely to have a hose blow off, or crack, or develop a hole way before the cap reaches its yeild point.

I wonder if Ken block brought out his own radiator caps how many doosh bags would buy them? Hahaha

[Koom]

Ken should release a special edition Closed Deck Ken Block for rebuilds..........charge $10k for it too.

[NotAWhiteGTB]

And a direct monster injection system so you can throw down some sweet D's yo'll