2003 Impreza rs. Round track race car. I race in 3 rd gear at the rev limiter. It literally will blow out 1-2 qts of oil and dump it into the air breather. Any help?

Get, or make a catch-can for your PCV system.

http://www.killerbmotorsport.net/oiling-products/oil-control-valves/2002-2007-wrx-sti-oil-control-valve.html

Awsome info GD. Also only other issue I had was the coolant from the system kept filling up the over flow tank

Awsome info GD. Also only other issue I had was the coolant from the system kept filling up the over flow tank

That usually means the HG'S are starting to go. Or you have a bad cap.

 

GD

Thought so. I’ll redo them. I had to redo the driver side head last night. But didn’t check the pass side. Plugs looked good on pass side so I assumed. Thanks alot

What head gasket do u recommend for my race car?

Use the factory gasket part number ending in 642. Its for a 2004 STI.

 

GD

Use the factory gasket part number ending in 642. Its for a 2004 STI.

 

GD

 

Would this be your recommendation for any EJ22?

His 03 Impreza uses an EJ25. That gasket will not fit a 2.2

 

GD

OOops, sorry, I had this confused with another thread.

GD ANY SUGGESTIONS ON HEAD STUDS? I RACED SATURDAY NIGHT AND BOTH HEAD GASKETS WERE BLOWN RIGHT IN THE MIDDLE. I ORDERED THE GASKETS U RECOMMENED TO USE. IM NOT SURE IF MY HEAD BOLTS ARE HOLDING UP OR NOT.

The head bolts should be fine. Need to machine the heads flat. They are likely cupped.

 

GD

Having them cut back flat today. Idk what happened. I’ve torqued these heads a million times. Not sure what happened. Maybe just the quality of gasket. I had the felpro the first time, then i tried I think the brand was cometic or somthing. The metal shim type. What type of gasket material are the 2004 sti ones u reccomened?

How much compression are you running in the car?

The sti gaskets are MLS.

They are decked.20 over. Haven’t checked

GD DO I HAVE TO BACK THE HEAD BOLTS OFF 180 DEGREES TWICE, OR CAN I SOMEHOW SKIP THAT STEP. IM NOT SURE IF THERE IS A BETTER WAY TO TORQUE THEM OR NOT.

Yes you need to pre-torque the bolts then back them off.

roger thank you for ur help

Oil control work amazing. Thanks a lot GD

Right on! Glad that worked for you. We go straight to that valve for track cars rather than the air/oil separators that people always want to use.

 

GD

Well I hooked up both together the control valve and the AOS. It’s a freakin complicated setup but man oh man does it work amazing. Now I’m working on a msd dis 2 ignition box to make my rev limiter higher.

Edited May 6, 20187 yr by Tireman28