Did anyone get heater issues when using stock radiator with twin turbo?

I put on a nismo thermostat but my car still is over heating. But only sometimes. I notice the coolent catch has some fluid everytime is stop. Wondering a race radiator will help.

 

...... I am in no way a Forced Induction tech/pro. BUT im pretty sure if your running a twin turbo set up you need an intercooler to cool the compressed air before it blows your ****ing engine to pieces.

 

A thermostat causes your engine to quickly get up to the normal engine operating temperature. I also am no expert on forced induction, but I don't think that has anything to do with your overheating if it didn't do it right from the moment you added FI. I would almost bet that your radiator is clogged and that it can't keep up with the heat that the engine generates. I doubt that you need a racing radiator, just a (stock) radiator that allows enough coolant flow through the radiator.

 

You probably have a air pocket in your cooling system.Search for how to properly bleed the cooling system....its a biatch.

 

Pretty easy, actually. Go out and drive the car around, let it get fully warm, and come home. Wait a couple of hours for it to fully cool down, and open the radiator up (top valve). Fill it full of water/rad fluid, and then find the radiator bleed valve, near the passenger side, on a black hose. It's a black cap, and unscrews with a phillips screwdriver. Unscrew it, and make sure you don't lose the cap by letting it fall down into the engine bay. Continue filling the radiator through the radiator cap until rad fluid starts coming out of the bleed valve.

Close everything up, and then repeat the process. You'll have to do it about 3-4 times to be sure to get any bubbles out. You don't have to do it the same day, though, it can be different says, or whatever.

As for the guy who mentioned something about an intercooler, you said it yourself when you said you were not an expert on FI. I doubt there are any twin turbo kits out there for the Z/G that don't have intercoolers.

 

the best/safest and fastest way to bleed our cooling system both NA and FI are following these instructions. The Tee piece it refers to is for the APS TT you probably still have a bleeder there.

http://www.airpowersystems.com/350z/...m#_Toc86034204

 

Yea I think there is a air bubble because everytime I fill it after I let it warm up it starts to bubble up and out. Then the heater blows cold.

 

Thanks everyone for the help.


Also I have an Intercooler it's just so big it doesn't allow air to the radiator.

 

its definitely an air bubble, just follow those steps (with heat on full blast)until you no longer have to add coolant after the final step and your heat blows hot.

and the intercooler isn't blocking the radiator, air flows through it as well, even though you may been a upgraded radiator you shouldn't have heating problem until your in boost