Nissan2nr22

Title pretty much sums it all

Engine is all stock, original.

I drive 15 miles from work to home daily twice and the cars fine, heat gauge is a little below half.

Yesterday I had to drive to Miami, at about 20-30 miles in heat slowly started rising till almost the top.

Obviously I pulled over before it hit the top, cooled the radiator down.

I noticed when I put the car in neutral while going 70-80 on the highway and just cruise the heat QUICKLY RISES after 20+ miles of traveling at 70+ MPH

Heres what friends are telling me:

1) From Previous owner, he said : Redtops arent made to go past 65mph and to be able to do that I'd have to get a bigger turbo and a 6 speed trans.

2) Friend said : It could be the water pump?

3) Mechanic said : You need a better radiator.



Does anyone here know or is familiar with this problem? How did you fix it? Please tell me I really need to be able to travel longer distances.