|
Super V.E. for diesels
Super Volumemetric Efficiency
I studied this years ago, around 2004. Reason back then was to make gas powered cars go faster. I hadn't thought about it in a long time.
Something reminded me of it and I realized it could be used for fuel economy too, mainly on diesels.
Basicly you get inside your intake runners harmonic range (depending on how long they are) and you stuff up to 10% more air into your cylinders, with no additional parts or moving parts.
With a turbodiesel you have boost. Increased pressure does effect harmonics.
10psi of boost and the heat you would expect from it (after being intercooled) has the effect of making the runners seem like they are about 10% longer. The added heat and pressure slows down the speed at which the intake pulses move.
__________________
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.
|