diesel the turbocharged engines have the same comp ratio as non.
the only way a 240 shoould be getting 15 is if the fuel timing is way off or a fuel leak or bad odo. or a seriously lot of idling and stop and go traffic. i would bet on the odo. if it runs and starts good.
much of the fuel economy that might be expected in the smaller engined 240 is eaten up by the relatively low geared rear end. at 3.69 the engine turns much faster than the turbo cars and pumps much more air through it as a result. we have had long discussions here about turbo vs non turbo effeciency, but it is all wrapped around the gear ratios. since the turbo cars have higher gears and the motor turns less rpm on the highway their more fuel consumption is mostly compensated for. if carrying the same gear ratios the non turbo motor will win on economy every time.
tom w
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[SIGPIC] Diesel loving autocrossing grandpa Architect. 08 Dodge 3/4 ton with Cummins & six speed; I have had about 35 benzes. I have a 39 Studebaker Coupe Express pickup in which I have had installed a 617 turbo and a five speed manual.
[SIGPIC]
..I also have a 427 Cobra replica with an aluminum chassis.
11-13-2005, 03:28 AM
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