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Yeah I did once, a long time ago. Burned all the exhaust valves because it was running lean all the time.
That was about 22 years ago.
My later experiments 2013-2014 with lean burn using a 4bbl carburetor were successful. The primary venturis were set up for lean burn, the secondary venturis were fuel dumps and I had wide band air fuel gauge hooked in. Any time I got on the throttle I had a rich air fuel ratio. When I disassembled that engine it had no trace of burned valves.
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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; 07-22-2022 at 11:51 AM..
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