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01-08-2009, 03:05 AM | #1 |
Scooby Specialist
Member#: 96163
Join Date: Sep 2005
Location: IN
Vehicle:2009 IMPREZA WRB |
Recommendation of Head Gaskets
I have an EJ257 with crank, stock STI rods, and CP Piston(100mm), I had 2.5 heads re-done with with Supertech valves 1mm over. I am running the DOM3. What would you recommend head gasket to use. I still want to use the stock OEM head gasket, what do you think...
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Last edited by islandboy78; 01-08-2009 at 03:05 PM. |
01-08-2009, 03:36 AM | #2 |
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what turbo and cams u running? 2.0 heads?
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01-08-2009, 04:56 AM | #3 |
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Location: Australia
Vehicle:2001 V7 sti |
I used cosworth head gaskets on my last build and can only say good things about them.
Next build I will use them again, for sure. |
01-08-2009, 12:57 PM | #4 |
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Join Date: Sep 2005
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01-08-2009, 01:34 PM | #5 |
Scooby Specialist
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Again, what turbo and cams? trying to determine your boost and power goals as you can use them to modify compression/quench.
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01-08-2009, 01:53 PM | #6 |
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OEM head gaskets.
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01-08-2009, 02:42 PM | #7 |
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Vehicle:2013 PBP sti ltd 05 LGT 35r 30psi..busted |
I went from cometic .051, to stock sti headgaskets. I love the bump in compression with the sti gaskets. I will never go back. So much more off boost power. I have also logged 400-500 rpm sooner spool to peak boost ( which was 19psi on booth setup).
DK |
01-08-2009, 03:04 PM | #8 |
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+1 on OEM
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01-08-2009, 03:44 PM | #9 |
Scooby Specialist
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Join Date: Sep 2005
Location: IN
Vehicle:2009 IMPREZA WRB |
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01-08-2009, 03:48 PM | #10 |
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i have a set of oem sti gaskets i wont be using if you need some.
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01-08-2009, 03:54 PM | #11 |
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stick to the sti ones if less than 25lbs. If you're looking to go above that, I'd lower your compression a bit with 0.51 or even 0.60 cometics to handle the high boost easier. If you're ever considering 35/40rs in later life, I'd also suggest going there.
You will loose a bit off boost but with smart tuning, timing can make up some of it and you'll be safer IMO with a little bit less compression, especially if you do the tuning on the street yourself. |
01-09-2009, 06:02 AM | #12 |
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01-09-2009, 06:02 AM | #13 | |
Scooby Specialist
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Join Date: Sep 2005
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