Pushing Coolant

[cman3000]

Also, the headgasket did not show any obvious signs of a leak, but i have been told that is doesnt always.

[cman3000]

So should i just go with another set of ARPs? I only plan on pushing it to 28 psi, and i shouldnt be making over 450whp.

[95talonracer]

So should i just go with another set of ARPs? I only plan on pushing it to 28 psi, and i shouldnt be making over 450whp.

go L19s or A1's

[Halon]

If there was no sign of anything wrong with the head gasket, than your issue could be elsewhere. Cracked block maybe. Also have you done a pressure test of your cooling system? Maybe you have a small leak somewhere.

[cman3000]

I hope to god that it isnt a cracked block. Have not tested coolant system yet, will do though.

[Halon]

Also, might want to try a new cap. I got the 1.3bar mishimoto one personally.

[goodhart]

What kind of headgasket have you been running? I have used the Cometic MLS with ARP's and have had the same issue. I am pretty sure what has/is happened to mine is that the head lifts under a decent amount of boost ( I run 23psi ) and combustion pressure seeps into coolant passages causing the car to push coolant. Even though the head gasket didn't get damaged, it unsealed during boost causing the pushing/overheating problem.

So, if You are using a Cometic MLS or similar headgasket, this may be your problem. I plan on going with a Fel-Pro Permatorque and a set of L19's to cure my problem.

If the problem isn't horrible, try a higher pressure cap like Halon said, that way the coolant won't boil until a higher temperature. I also run a 1.3 bar Koyo radiator cap and it made a surprising difference in my car.

[mike55112]

I was pushing coolant and it was a blown headgasket, I got it machined and then slapped it back on reusing my arp headstuds and it stopped. I was using a cometic headgasket and ditched that for an oem mls one.

[cman3000]

What headgasket should i go with? OEM Mitsu? I can't really afford the permatorque.

[95talonracer]

Do it once and get it over with. Permatorque and L19's.

What headgasket should i go with? OEM Mitsu? I can't really afford the permatorque.