The radiator cap of the Champion 3 row radiator is really worn. Would this 16lbs Stant Cap work and help lowering the temperature? 

https://www.amazon.com/Stant-10230-Radiator-Cap/dp/B000B8LKVY/ref=sr_1_2?dchild=1&keywords=Stant+radiator+cap&qid=1634738898&qsid=135-7717209-6316309&sr=8-2&sres=B000B8LKZ0%2CB000B8LKVY%2CB000B8N3G4%2CB000C846LY%2CB00180JSSQ%2CB000B8LKYQ%2CB000E3ZLM0%2CB00180JSP4%2CB000C8227E%2CB000B8JUGQ%2CB000C808SE%2CB000B8JUG6%2CB000B8N3GE%2CB000B8N3J6%2CB000C808T8%2CB000C8224M&srpt=ENGINE_COMPONENT_CAP

The one that my radiator currently carries is labeled 1.1

What does worn mean? Pictures??

It will not change the temperature in the radiator at all! It will boil at a higher temperature but then you might bust hoses at the higher pressure or have leaks.

"If it's not broke; don't break it!!"

20 hours ago, jalexquijano said:

help lowering the temperature? 

You use a Aluminium radiator?  Let me just say this: There is no better radiator than a copper one!!!   Personally i HATE  those stupid aluminum (or aluminium) radiator makers.. they say their 3 row is a very good radiator... NO a 3 row COPPER radiator is MUCH better.. 

I don't no i have not tested it but i Bet that even a 2 row copper radiator cools better than a 3 row alu..  

Yes a copper one is much more expensive, thats why the alu is popular.. not that it's better...

All Z's & ZX's have copper radiators for a reason.. 👍

20 hours ago, jalexquijano said:

one that my radiator currently carries is labeled 1.1

Yeah that means it opens at 1,1 Bar.  (15,95 Lbs per square inch) i would'nt go much higher..  (i know that my 300zxtt works at 1,2 Bar (17,4 Lbs/sq Inch.)

Bought the wrong cap. Damn!! The one my radiator carries is the one in the pic