overheating......

[talonite]

yes its still stock motor. and i just did the headgasket at my work, looked fine before, and now its new and still doin it. But my fans dont kick on by them selves when the engine is hot and it wont do it if i leave them on. But if i let my car idle for a while then give it a little gas and let it sit again with no fan (cause it wont kick in) it boils over, i mean i have all new components cooling system wise and i put my stock fan back in. And everything mechanical and sensors checks out, so im wondering if it could somehow be related to tuning or an issue with the eprom ecu i put in.

[talonite]

You could also try and get a lower temp thermastat... Or drill a hole or two into yours.

done this, didnt help and stuck a stock one back in

[123abc]

So from what I gather your fans aren't turning on? Wire them up to a switch and keep them on as soon as your t-stat opens.

[scheides]

a) You still left out almost ALL of the info I asked for!
b) Sounds like your fans are the issue get them to come on either all the time, or at the appropriate time.
c) can you log the car? Do you have DSMLink? What are your coolant temps doing, if they skyrocket (go over 190-200°F for example), and the fans don't turn on, then your sensor is working fine, but something triggoring your fans is not.
d) are you sure you installed the fans correctly? Some are push, some are pull.

[talonite]

a) You still left out almost ALL of the info I asked for!
b) Sounds like your fans are the issue get them to come on either all the time, or at the appropriate time.
c) can you log the car? Do you have DSMLink? What are your coolant temps doing, if they skyrocket (go over 190-200°F for example), and the fans don't turn on, then your sensor is working fine, but something triggoring your fans is not.
d) are you sure you installed the fans correctly? Some are push, some are pull.

lol sorry. yes i can log the car with dsm link v3 and i watch the coolant temp rise pretty slowly to about 125-130 but i use a electric thermometer gun i have at my work and it says the coolant is at operating temp. Motor is stock, have a few bolt ons, evo3 turbo, fmic, opendump, ported exhaust manifold, walboro 255, 560 injectors, high pressure fuel regulator, stock fan and stock radiator back on it, full 3" exhaust and I had rsmotors do a base tune on my car just to get it running because i had a few issues to take care of, so its not fully tuned. And i am running 14psi at the moment and havent been hitting the gas at all lately just normal driving. It usually happens when i stop after driving a little bit and let it idle,i hope that covered everything you asked, and im almost 100% sure its because my fans dont kick on by themselves, but im trying to figure out why they wont come on. Because my ecu is seening a completely different temp than what it actually is. and i have replaced both the coolant temp sensors( gauge and switch) and measured the resistance on both and they were both in spec. So basically all im asking is would re-flashing the eprom mess with the temps it sees coming out of the car? and can it be fixed with a full tune? or should i just say f it and click the little box that says fans full on all the time?

[Matt D.]

You haven't said if your fans are turning on or not, or if you've checked to see if they're blowing in the correct direction.

[talonite]

i have said a couple time my fan does not turn on by itself, it is pulling air through tho. not pushing/

[GsXtUrBo98]

Im telling you. After all that I went through it ended up being the fans... because the stock ones flow so much more then aftermarket slim fans and the stockers have a shrouding around them to focus the cooling off of the radiator.

Also, Go into dsmlink and make those fans stay on at all times.

[Constant_Project21]

He has the stock fans back in from what I've been reading. Just have them on all of the time, and see if it works. I had 1 stock fan in my 1g, with way more mods, 24psi of boost, and never pushed a drop of coolant. Did you swap in new headstuds with the new headgasket? If not they couldve stretched and be causing the headgasket to not be sealing.

[talonite]

He has the stock fans back in from what I've been reading. Just have them on all of the time, and see if it works. I had 1 stock fan in my 1g, with way more mods, 24psi of boost, and never pushed a drop of coolant. Did you swap in new headstuds with the new headgasket? If not they couldve stretched and be causing the headgasket to not be sealing.

ya im kinda thinking i may have to just have that one fan on all the time. But yes i switched out the head studs for new ones. couldnt have used the old ones if i wanted to, they were really stretched