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I moved my AEM wideband O2 over into the suburban.
From my initial setting the idle was a tad too lean, needed about 1/8 of a turn rich to make it idle between the 16 to 18 range.
Gentile acceleration is lean, between 15 and 16 to one. That could burn a valve.
Moderate acceleration is around 15.
Flooring it meters fuel in at fuel at a rate of between 13 and 14 to one.
Cruise is around 16:1. I am pretty sure that is in the valve burn range.
I think I will start off by seeing what the next size smaller metering rod will do (will let in slightly more fuel during acceleration).
Edit: when I took the motor apart I pulled the exhaust valves and they showed no signs of burning.
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1984 chevy suburban, custom made 6.5L diesel turbocharged with a Garrett T76 and Holset HE351VE, 22:1 compression 13psi of intercooled boost.
1989 firebird mostly stock. Aside from the 6-speed manual trans, corvette gen 5 front brakes, 1LE drive shaft, 4th Gen disc brake fbody rear end.
2011 leaf SL, white, portable 240v CHAdeMO, trailer hitch, new batt as of 2014.
Last edited by oil pan 4; 01-12-2017 at 01:27 PM..
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