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Old 05-23-2020, 01:05 PM   #401
Scooby Specialist
Member#: 5591
Join Date: Apr 2001
Chapter/Region: MWSOC
Location: Westerville, Ohio, USA
2002 WRX
EJ257 Gt35r


FWIW, we always shim ours if needed to ensure proper seat pressure. Not just on Subarus as this is very typical.

It doesn't take much of a "misfire" to have a plug break at big power levels and high cylinder pressure. It could have been much worse than that. I am running the endurance springs and only have about 1500 miles on the motor.

Obviously, my motor worked with the large cams for 40,000 miles. The springs got tired, and just like Firehouse, that was all she wrote (I'm old).

Starting all over again has is own concerns and challenges. After all these years it's turning into Groundhog Day.

One thing that keeps me going, besides my passion, is working in the industry. This makes me understand that these problems are not limited to Subaru. My setup doesn't always last the longest, but they aren't the worst. And I've lost count of those who has come and gone over the decades. Please make your own choices and be confident that it's all on you. KEEP STRONG AND CARRY ON!!!!
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Old 05-23-2020, 01:47 PM   #402
Scooby Specialist
Member#: 163648
Join Date: Nov 2007
Chapter/Region: MWSOC
Location: Xona 78•64 UHF
2002 WRX
V9 6mt R180 Brembos


Originally Posted by SW00P_G View Post
Please make your own choices and be confident that it's all on you.
This is important.

I do my own research and form my own opinion. Because like SW00P_G said it’s my choice in the end. I like to be confident, because it is all on me when the rubber meets the road. It’s the exact reason I like to ask people questions about parts who have had actual experience with them.

Wisdom from those who have walked before you is extremely valuable if used correctly.
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Old 05-23-2020, 02:52 PM   #403
Scooby Specialist
Member#: 57064
Join Date: Mar 2004
2008 STi IAG built
HTA86 E85 Kel272s Cos IM


What I took away from this experience are the positives of what works. Bravo to:

Manley turbo tuff rods and pistons - 38psi for 45k miles and perfect on tear down. You can’t ask for anymore. Zero oil consumption

OEM crank - beat the **** out of it with a whole lotta boost

King bearings - smooth as day one without signs of premature wear on oil analyses

IAG closed deck - not even a single crack after this long, stayed a cool 195F even on a 100F day AC blasting

JE pro seal headgaskets + IAG 14mm headstuds - before the firelock O rings, these sealed perfectly after all these years

kelford cams - special place in my heart for 100k miles

All in all, It has been one damn fine shortblock IAG has put together

The odd thing is that if these parts failed on my next engine, I would have an “oh you” moment and forgive them
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