Request for logs->Headgasket thickness changes. I'd ideally like to
02-07-2005, 12:49 PM
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Request for logs->Headgasket thickness changes. I'd ideally like to
see as many logs as possible for people using the OCT or MTM headgaskets. Of course I'd like to see all the details as well->octane, tuning, other parts, turbos....
Before and afters of them on the same car would be ideal, but I'd like to see whatever you have. I'm seeing some hints that the squish area is all screwed and the knock is actually being *increased* on pump gas. Any input/observations would be welcome.
Before and afters of them on the same car would be ideal, but I'd like to see whatever you have. I'm seeing some hints that the squish area is all screwed and the knock is actually being *increased* on pump gas. Any input/observations would be welcome.
02-07-2005, 12:52 PM
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My guess is knock is not increased but the knock sensor activity is increased. When/if i pull my
motor again, i'll probably put the stock ones back on. My car has never pinged but my knock sensors read high.
02-07-2005, 12:55 PM
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Oh yeah->thanks for the info btw. It sorta correlates with what I'm hearing from others who
don't post here. I'm likely to stick with the stockers for now as well.
02-07-2005, 12:56 PM
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Heh. Just curious. I'm gonna go the stocker route for now. I'm gonna sell
the MTMs, since I'm gonna mod the heads a bit and get some CCs from some of that. Still have to decide on the studs.
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02-07-2005, 12:57 PM
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That's the whole thing that DAP is collecting data on and once I can get him some logs I will. KV
and CF don't seem to have any kind of direct collelation. I can saturate my knock sensors and still have single digit CFs...I can be 100+ octane with no change to knock sensor activity...
It's going to require lots of logging on various settings to show it but I've observed the same thing DAP is hypothesizing.
It's going to require lots of logging on various settings to show it but I've observed the same thing DAP is hypothesizing.