I am have a k20 turbo integra. and i am using a 3 row half civic radiator.. and the temps are getting up tp 210.. so i got a fal fan and made a shroud.. but i think the problem is the filler neck is lower the the upper neck on the k20 so i made a custom top piece of the radiator like the k tuned swap radiator( i raised my top half of the radiator about 1 1/2).. but i think that i am going to still going to have filler neck issues.. and want to keep the stock filler neck on the radiator and want to weld on another filler neck on the upper coolant part on the k20.. but the issue is where can i get another stock radiator cap filler neck to weld on.. i searched.. and what is the diameter or the stock one.. can somebody lead me in the right direction.. thanks.. what did you guys do about this.. thanks in advance

 

I believe jegs sells them

 

Should I use -16 or -12..

 

What are the temps you guys are getting driving the car and track.. ?

 

-16 is plenty

 

Ok cool.. what was yours temps on the car..