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Discussion Starter · #1 ·
hey guys i no its been covered before but i cant find an answer to my problem my rb25 keeps running hot on the highway 220f to be exact cant figure it out bleed the radiator no leaks help me out guys
 

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I have to ask...if you continually run hot, why do you insist on driving it? You're just killing your motor.

Anyway, fans? Do you have the right radiator? Is your water pump good? Do you have a front mount intercooler that might be blocking sufficient air from getting to the rad or is the bumper allowing sufficient air to get in? There are many variables that could affect this. A/F ratio good, fueling sufficient? You see where I'm going with this, you gave little clues to help us out.
 

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Discussion Starter · #5 ·
first off im not continually running it hot drove it yesterday for ten mins and stopped bc of the overheating.

i have 2 efans a 10 and 12 inch cx racing front mount and isis intakemanifold, q45 throttle body, walbro 255 fp, cx racing dual core 2" rad.
 
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be more clear.. at idle does it stay cool then once you do some open air cruising it start to rise? could be your bumper like above not allowing enough cool air.. is the coolant/water mixture on point.. my uncle had a problem like that.. he just uses straight up water like in his big block now
 

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Discussion Starter · #9 ·
no it starts to climb after about 3mins of staying at 185 at idle. im scared to take it back out on the road i dont want it to overheat bad again. and the fans are pushers and run while i cruise so it still gets some what fresh air with the bumper on. and i run 50/50 prediluted antifreeze
 
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