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10-23-2007, 11:52 PM
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My STI is alive again, here's what happened
 The drivers side Intake cam broke. Cosworth 278/274 AVCS cams with 4k miles. There was no other damage to the engine! Wear on the cam buckets, lobes, and bearings looked normal. There was no "smoking gun" besides the broken cam. And there was no indication of a build problem or a tune problem. Cosworth replaced all 4 cams, no questions asked. The timing belt and tensioner were replaced. The lower uppipe gasket was totally destroyed! Also replaced. Needless to say, I have my car back after a little over a month of downtime, and about half the time we were waiting for the cams to come back. I fixed most of the drivability issues in a 10 minute tuning session - the ECU fuel map is really sensitive at low rpms and things were off just a bit. I ran it up to 15psi... the car feels great and sounds absolutely nutty. I datalogged both the ECU and the UTEC and everything looks good. More boost tomorrow  Thanks to Synapse for getting my car in and out of the shop so quickly! I think I might sleep in my car tonight.
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05 STI, built 2.5L, cams+headwork, gt35r+meth, dents and scratches galore 
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10-24-2007, 06:38 AM
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Nice Jay!! Congrats on getting the car back up and running. Are you gonna be around this weekend? you still have to see my car now that its done....
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10-24-2007, 06:59 AM
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Rollers On Sunday?
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10-24-2007, 07:06 AM
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Good to hear man!
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10-24-2007, 07:47 AM
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Quote:
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05 STI, built 2.5L, cams+headwork, gt35r+meth, dents and scratches galore
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10-24-2007, 09:48 AM
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Come To Moon Sunday Damn You!!!
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JDM AWD Turbocharged Madness The "replacement for displacement" is measured in 'psi'! "You can lose a lot of money chasing women. But you'll never lose a woman chasing money." -A man much wiser than I 
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10-24-2007, 10:50 AM
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I forgot that I have to work on Sunday from 10am to hopefully 12-1pm. We are making a pretty big, high-pressure network change at work. If the change fails somebody is gonna get fired, so I am not going to risk making this change while I'm on the road.
Saturday is still looking good for LVD though, provided we get some dry roads between now and then. I bet that replacing the uppipe gasket will give me another MPH or two in the quarter.
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05 STI, built 2.5L, cams+headwork, gt35r+meth, dents and scratches galore
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10-24-2007, 01:11 PM
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Quote:
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This is Mike's dad and I've heard just about enough complaining from you guys. Autofest was cancelled because of lack of support from all of you, plain and simple. Blame yourselves. Here it is one month before the show and not one of you cheap bastards has pre- registered...
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10-25-2007, 11:42 AM
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Mucho problems again.
I am gonna pull the plugs and do a compression test tonight. At best a plug is fouled. On cold startup it fires on all 4, but if you give it any boost at all, it turns into a 3cyl. It started last night on a 22-23psi pull. This morning I was gonna pull things apart and check the plugs, but the car started up and drove around the neighborhood fine. I tried a 14psi pull on the way to work and a cyl dropped again.
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05 STI, built 2.5L, cams+headwork, gt35r+meth, dents and scratches galore
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10-25-2007, 11:56 AM
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sounds like the flux capacitor, in my experience just give it more boost!
 just kidding, thats odd i wonder whats happening with your motor. that would suck if something else serious were to break now!
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10-25-2007, 02:11 PM
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Quote:
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This is Mike's dad and I've heard just about enough complaining from you guys. Autofest was cancelled because of lack of support from all of you, plain and simple. Blame yourselves. Here it is one month before the show and not one of you cheap bastards has pre- registered...
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