I purchased & installed a 300zx twin turbo 1.2 bar radiator cap from a local Nissan dealer, our stock cap is a 0.9 bar, the zx cap has a higher boiling point which helps cool things down a little, the summers here in Toronto are pretty hot, I immediately noticed the temperature guage slightly lower, nice little mod for the summer.

 

how much? $$

 

$15

 

Not bad!

 

Your joking right?

 

Nope, in fact all Nissan's/Infiniti's have the same size cap.

 

Does this actually work?

 

LOL he is talking about your hot summers!!! LOl I doubt they are that hot!

 

for them it is lol. it's relative. op, come to texas and see how hot it gets.

 

ive been to texas. **** is crazy hot. i never thought i would have a sweaty ***..

 

LOL, I can just imagine how hot it is in Texas, in your case I would upgrade to a Nismo radiator & maybe a couple of bottles of Red Line water wetter. lol

 

lol it was like 90 plus just 2 days ago! my outside temp guage said 100 the other day until I got on the freeway!

 

How can a radiator cap change the temp? I'm lost here............

 

It basically raises the boiling point of the coolant, which will increase the performance of your radiator. Inexpensive upgrade, nothing major.

 

Exactly! But you raise the "boiling point" at which you have "boil over", not lower the temp at which it operates. However, you may increase the efficiency of the system, therefore it throws off more heat and works cooler. Or some such shit.