11-14-2006, 07:57 AM | #11 | |
Si vis pacem, para bellum
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Nice!!! I can't wait to see it in person!!
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1989 Saleen SSC 1988 AL DPS SSP |
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11-14-2006, 08:38 AM | #12 |
Daddy x4 ...we're done
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Congratulations on getting it on the road, Brad. Now for the fun part of tuning and perfecting it.
Kind of suprised at that -- aren't the o-ringed heads supposd to help prevent that? I wouldnt think they would blow at that low of a boost level.
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11-14-2006, 09:20 AM | #13 | |
ooooo cake!!!
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I bet it was detonation, especially since he had oil in the combustion chamber. |
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11-14-2006, 10:11 AM | #14 | |
Si vis pacem, para bellum
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Thanks man!!
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I may end up selling the heads(since I really don't want to start shaving the heads to remove the o-rings) and buying another set. Then use some copper head gaskets that are made with an o-ring of sorts in the gasket itself. They are supposedly tested to 1200 hp. Decisions...decisions.
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1989 Saleen SSC 1988 AL DPS SSP |
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11-14-2006, 10:19 AM | #15 | |
Si vis pacem, para bellum
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Still just trying to feel everything out and get an idea. I have the heads getting looked at right now. I want to make sure that that specific head wasn't actually slightly off in the area that it blew. I did buy them used. But with a receipt from TEA with all the work that was done, including hot tanking and checking everything. But that doesn't necessarily mean anything.
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1989 Saleen SSC 1988 AL DPS SSP |
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11-14-2006, 03:24 PM | #16 |
3v's are slow
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All it takes is oil fumes in the cylinderto cause detonation. Oil fumes from even a PCV return setup will lower your octane rating significantly.
Brad, do you have any idea where your WOT timing was set to? Based off your 9psi #'s I am assuming you guys had very little timing in it. How did your a/f look before the head gasket blew? |
11-14-2006, 07:08 PM | #17 | ||
Si vis pacem, para bellum
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The air/fuel was more than fine....as a matter of fact, at the top of the rpm range, it had actually started dropping off the graph because of being so rich. And Blake was trying to atleast get it back on the graph when the gasket blew.
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1989 Saleen SSC 1988 AL DPS SSP Last edited by NightHawk756; 11-14-2006 at 07:11 PM. |
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12-12-2006, 06:33 AM | #18 |
Si vis pacem, para bellum
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Well, the car's back on the road again. And, I may be wrong....I haven't driven it in about a month after the head gasket blew.....but it certainly feels much stronger.
Turns out that the pcv oil baffle on the lower intake wasn't there. I bought it used and it's apparent that one was never even installed on it. And of course, I never noticed this. Duh. And it was definately dumping oil in atleast #5 and #8 cylinders pretty significantly. So, we've got her buttoned up now....with a baffle freshly installed on the intake , and an oil seperator for extra insurance. I'm gonna drive it for as many miles as I can before carrying it back to the dyno. It needs a little more tuning. It has a bit of a stumble that needs to be worked out. And I'm sure the tune needs to be changed now that I don't have two weak cylinders. I'll keep this thread updated and try and start uploading dyno sheets also once I get back to the dyno.
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1989 Saleen SSC 1988 AL DPS SSP |
12-12-2006, 06:48 AM | #19 |
BamaMafia 4 Life
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12-12-2006, 06:57 AM | #20 | |
3v's are slow
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Where do you have your PCV valve venting too. I learned the hardway not ot vent back into the induction system. Need to run it to a catch can |
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