So I was looking into a trd rad cap for my 22re but i couldnt really find any but i did find that stant makes a 16lb rad cap over the 13lb not a huge difference but it might be worth it if you were planning on replacing yours soon. The part# is Stant 11233

 

waddya think?

 

what do you mean "what do you think?"? you didn't ask anything.

FYI high pressure caps just mean the cooling system can run hotter before the coolant boils, it doesn't actually increase the cooling capacity.

 

ya, it has no effect on the cooling ability, just means the pressure can get higher before the cap releases. Are you trying to make your truck run cooler or be more efficient or something?

 

chill mode.

no just my 13lb radiator cap(that was new) would always open when my truck got up to 5000rpms and it doesnt do that anymore with the 16lb

 

i sense blown heater core in your future my son...

no j/k but that pressures gotta go somewhere...i would rather have it come out the cap then out somewhere else, might be cheaper to keep it away from 5K rpm

 

I saw this today and thought hmmmm thats different

 

welll thats why its only a 3lb difference. aint big but it helps.

 

Higher boiling point of the coolant does equal better cooling; raising the pressure of the cooling system raises the coolant's boiling point. It's not really needed though if the rest of the cooling system is in good shape. I had a higher pressure cap from one of my other cars on my truck as a temporary fix when my stock cap went bad and my temperature gauge never moved off the bottom line.

 

Yeah it really ain't a huge diff just thought it'd be a better replacement to help with cooling

 

what KYNgsx said, I learned that the higher a rating a cap is, that's how many PSI is going to be in the system, i think it's like wtvr the coolant or water boils plus 3x(rated psi of cap)
the 3 would be the degrees in Fahrenheit x like say 16 which equals 48 degrees more that the system can have before it boils
ok say lets say (im not saying water boils at this, im just to lazy to google)
water boils at 180 degrees, running temp for a vehicle is 210 degrees, if you have a 16 rated psi cap, that's 48 degrees you can add to 180 which equal 228 degrees so in turn, with 16PSI in the cooling system, water will start to boil at 228 instead of 180, the more pressure your cooling system can hold, the "cooler" it will run. that's just a prime example, go figure out the temp. water boils at and find the degree's in F times your rated pressure cap then that equals the F that your coolant or water in your system will start to boil! Whoo! UTI is fun! lol... Go figure!

 

water boils at 212 f and freezes at 32 f
50/50 water/ethylene glycol at 15psi boils at 265 f and freezes at -34 f

no offense to you but go UTI!

 

Cool! You did the correct calculations, now how many degrees in F. is it for every PSI?

 

most of it I remembered from grade school, the rest I looked it up on a chart. yay internet.