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Just finishing up the install on my new Champion radiator. The old cap was 16 psi. The one that came with the radiator is 0.9 which I believe is 13 psi. Is the 13 psi ok?
Dunno. Stock is likely 15 psi. I run a 16 psi Stant cap, since the manual release valve is handy sometimes. Your FLAPS might have one, or Amazon. How precise to you expect it to be anyway?
If you test a bunch of caps on a pressure tester you'll find they're +/- 1-2 psi anyway.
What the pressure does is help keep coolant from boiling in the head.
Where Vette people go wrong is adding MORE than 50% glycol/antifreeze. It does not move as much heat per unit of volume as distilled water does. Better as antifreeze, but less effective as coolant.
I've been defeating overheating for 30+ years but I'm sure now someone will tell me how wrong I am about all of this, being the Internet and all.
Just finishing up the install on my new Champion radiator. The old cap was 16 psi. The one that came with the radiator is 0.9 which I believe is 13 psi. Is the 13 psi ok?
Having my Champion installed tomorrow, i did not like the cap that came with very hard to get on, will be using my old cap.
Just finishing up the install on my new Champion radiator. The old cap was 16 psi. The one that came with the radiator is 0.9 which I believe is 13 psi. Is the 13 psi ok?
No, 15 psi Cap.
Why would it cone with a metric cap?
Champion says to use the cap that is supplied with the rad. Their filler neck is machined, not a stamping and perhaps a regular replacement cap will not fit or function properly. Call them. I’m using the one they supplied and it’s working fine.
Radiator cap pressure
