Keep nipping the #7 plug.....
Air distribution , IMO. I've run double the boost with more timing at the same A/F ratio and fuel type. Never burnt a ground strap,,,,, ever! Like the others have said checking the injector is easy.
I think you are too lean if your in the 12.0-12.4 afr range over 10 psi . Just looking for trouble. I would shoot for 11.2-11.5
Any chance you can run e85 ? Much cheaper than the race gas and IS badass on the boost.
There is no need to run anything with c16. I was running 25 psi with 20+ degrees of timing with IAT's at 200 degrees when I was A/A. A/F was around 11.5 on NGK 9's and never showed the first sign of detonation. There is something wrong in that cylinder or that injector.
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I am going to richen it up a bit either way. Going to a larger injector and more turbo.
Mike
Aside from what was posted that there is no need to run alky with C-16, C-16 is designed to run at high inlet temps. I would not be running a supplemental fuel with it. Either run straight meth or straight C-16. However if you keep hurting the same plug/cyl then you probably have a ring that has lost tension from the original improper tune up. That will allow oil to get past and into the combustion chamber contaminating the fuel charge causing repeated detonation in that hole.
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Aside from what was posted that there is no need to run alky with C-16, C-16 is designed to run at high inlet temps. I would not be running a supplemental fuel with it. Either run straight meth or straight C-16. However if you keep hurting the same plug/cyl then you probably have a ring that has lost tension from the original improper tune up. That will allow oil to get past and into the combustion chamber contaminating the fuel charge causing repeated detonation in that hole.
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Kind of moot at this point since the heads are off, but I wonder if it wasn't pushing water when it was lean because it wasn't making the same amount of power. I know when I was tuning boosted cars, if it was leaned out too much it was actually slowing than when I richened it up.
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Kind of moot at this point since the heads are off, but I wonder if it wasn't pushing water when it was lean because it wasn't making the same amount of power. I know when I was tuning boosted cars, if it was leaned out too much it was actually slowing than when I richened it up.
Mike
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Good luck, keep us posted.
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Currently a Typhoon. I was going to go back to an LS1 though.
Except that its been proven that 7/8 being lean has nothing to do with the ls1/ls6 style intake manifold. It has to do with the cooling system. Been proving time and again, including people who have swapped the intake manifold 180 degrees and 7/8 were still the lean cylinders.
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Except that its been proven that 7/8 being lean has nothing to do with the ls1/ls6 style intake manifold. It has to do with the cooling system. Been proving time and again, including people who have swapped the intake manifold 180 degrees and 7/8 were still the lean cylinders.
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And, when I say distribution I mean the fact that I am fueling from the injector and two meth nozzles. If that rear cylinder is not getting its fair share of meth, and I am fueling pretty lean based upon this mix...that cylinder is going to be very lean. So, I am going to pull the fuse on the meth when I am running C16 and dial in the fuel strictly from the injectors.