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Another great thing about negative pressure supercharging is it doesn't kick in till above 6,000rpms on most engines and you don't see volumemetric efficiencies above 100% until you get above 7,000 or 8,000 RPMs.
Running at 6,000+ is great for fuel economy.
My second engine, the holset HE351VE turbocharger starts building boost by 1,500rpms, putting my V.E. at or above 100%. If I increased my fuel injection rate on the diesel enigne I could be above 200% V.E. well under 3000rpm. But I'm not messing with the fuel injection rate until the intercooler, water injection go back on and the improved cooling mods get done.
I hand fitted file fitted narrow gap piston rings to each cylinider bore (0.018'' top, 0.014'' second and 0.015'' oil rings), excess heat will cause the ring gap to close and seize in the bore.
This can not be allowed.
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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.
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