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Randomly started feeling like it's falling on its face in 2nd & 3rd sometimes when I go WOT. As if it's pulling timing. Doesn't do it all the time, though.
No leaks, no smoke, runs & drives fine otherwise. Oil pressure & such are good too.
It's a C6Z w/cam, exhaust & tune. I pulled the NGK TR55 plugs and pics are below. The car was tuned w/these plugs over a year ago and has never given me any issues. The gap has widened out a bit, though. It's now .062. I also did a compression test and the results are below.
Compression test results (Done after car sat for a day):
2 - 240
4 - 225
6 - 225
8 - 240
1 - 210
3 - 225
5 - 225
7 - 210
To whomever deleted & banned my account I just made yesterday & posted this same post, what is the problem?
Last edited by CorvetteGarage; Nov 15, 2016 at 05:13 PM.
2020 Corvette of the Year Finalist (track prepared)
2019 C6 of Year Winner (track prepared)
Originally Posted by CorvetteGarage
Randomly started feeling like it's falling on its face in 2nd & 3rd sometimes when I go WOT. As if it's pulling timing. Doesn't do it all the time, though.
No leaks, no smoke, runs & drives fine otherwise. Oil pressure & such are good too.
It's a C6Z w/cam, exhaust & tune. I pulled the NGK TR55 plugs and pics are below. The car was tuned w/these plugs over a year ago and has never given me any issues. The gap has widened out a bit, though. It's now .062. I also did a compression test and the results are below.
Does it feel like a misfire? If so, it could be spark blowout due to the enlarged gap.
Many will tell you to avoid the NGK, however many of us are using them successfully.Don from Slowhawk (a really good LS tuner) uses them in his H/C C6Z builds. I commute in my car and sometimes it fouls the plugs, so I prefer just to use cheap copper plugs and change often. In your shoes, I'd throw on a new set of properly gapped TR55 and see how it does. Would be a quick/cheap test. If that doesn't fix it, I would try the delcos.