My friend has a turbo gsr in a civic. He can drive the car all day and it wont overheat. But after going under boost a couple of times the car will overheat when he stops. Once he gets moving the temp will go back to normal but if he stops again it will overheat even with normal driving until he lets it cool off for a while. The fan does work and he removed the center section of the thermostat.

thanks

 

sounds like a blown head gasket.

 

I have a similar issue. A compression check would also tell you if the head gasket was okay...correct?

I did put a shroud on my fan and it helped big time. I was going to make a heat shield and see if that would help.

 

He has arp head studs. Do you have to retorque them after driving the car for a while or is the one time good?

thanks

 

water pump?

 

no you dnt have to retorque headstuds and does sound like a waterpump

 

how can you test the water pump. also he put a new one on 2 years ago and barely drives the car. There is no fluid on the ground under the car.

 

bump to find info

 

how close is the down pipe the the radiator heat soak can also cause this or high temps under the hood as well

 

Can we get pictures? A good shroud may be in order.

 

hummmm.. this could be why im running a bit warmer.

 

i had these issues as well so instead of changing anything up I just went to e85 lol never ever gets to 190 degress at the track

 

the down pipe is close to the radiator so he wrapped the downpipe and manifold with heat wrap. the dump tube gets close to the radiator also so he is going to heat wrap that also. Also he just got drag radials so he gets more traction than before and not just spinning thu the gears. This should create more heat in the engine bay.

 

also someone told me if the car is running lean it could overheat. if so at what point would on a a/f gauge would be too lean for a turbo car?

thanks

 

Yeah if the car is running lean it would cause the motor to run hotter. Which can cause the motor to overheat. I would suggest getting a wideband, to see where the A/F ratio at, it should be around 11-12.

 

i know for part of the time it gets to 12.2 sometimes but the place where it was tuned said 12.2 is the highest you want it to go. he has a wideband but I need to ride with him to watch it

 

Make sure you check the radiator cap, I had a similar problem a while back. I ended up changing the thermostat, waterpump, and headgasket. It ended up being the radiator cap, wasted a lot of time, because I didn't check the little things first. I would pressure test the coolant system and do a leak down test.

 

this is what I did today trying to lower temps.

before:



after:









seems to help. it didnt get as hot as it usually does. still a bit warm but i think i just need another fan. I just have 1 pusher.

 

here is mine you see the down pipe is actually hitting the radiator ima need me some heat wrap also

 

is your oil source tapped off the head?

 

off the vetec solinoid

 

gotcha..

 

lost my headlight for the top mount though lol

 

just a track car i guess.

 

it wasnt lol might be now