Quote:
Originally Posted by Diesel_Dave
High compression ratio does improve fuel economy. The advantage of lower compression ratio is that power density improves, that is to say you can get more power out of the same displacement engine. If you look at diesel racing engines they'll have low compression ratio, as will some other applications were fuel economy is less important than power output. Higher compression ratio increases peak cylinder pressures, thus the reduced power density.
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on a avrege,
lower compression with boost = reliability
higher comp with boost = short engine life.
im very interested in how the water mist injection will help on the temps.
ive also heard of high powered boats running 14/1 compression with large amounts of boost.
there was some N\A diesel VW engines that where 23/1 but there quite common to have head issues with small cooling systems and alumnaum head on iron block.
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1 86 T\D trooper with rare GEN 3 rods TRANS FIXED  NOW DD
1 86 4WD 5sp pup is 2.3L gas, but plan on 2.2L diesel repower
1 91 trop, long term plan is a group buy of imported Isuzu 4JB1-T 2.8L I-4 engines, hoping to get price down to 2K not 3K plus
1993 sidekick my MPG toy, epa rating 26.
i get 29/31 with stock drive train.
Last edited by trooper Tdiesel; 02-29-2012 at 03:10 AM..
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