ORIGINAL: ericheller
ORIGINAL: Nitroaddict
guver - A deisel enginre dervives torque from increased compression. A deisel engine the same size as a gas engine will produce far more torque at a far lower rpm.
Example:
VW Jetta 2.0L 4cyl 8valve gas engine - 115hp, 102lb/ft@4800rpm
VW Jetta 1.9L 4cyl turbo deisel engine - 91hp, 155lb/ft@1800rpm
as you can see the deisel far exceeds the gas engine in both the amount of torque and the rpm at which it maxes out. I have driven this car, and the engine has so much torque at such a low rpm, that you can put it into first - not give it any gas - and dump the clutch, it wont stall - it will actually begin accelerating on its own without applying the gas, just based on the amount of torque it has at idle rpm.
my point exactly. i think actually the turbo on desil engines doesnt do much, except maybe let it rev out a little higher. at such low rpms it shouldnt add much power and at 1800 rpms i doubt the turbo spools up like it would in a normal gasoline engine.
guver- have you ever riden in a desil truck? my dad drove a power stroke for a while and it was one of the most powerful trucks ive ever riden in. come to think of it, it pulled more g's than alot of cars.
This is a non-debate item, give the gasoline the SAME AMOUNT OF BOOST IN PSI and then comapre the two. You wouldn't compare any engine to one the same size with turbo and expect to see the non-turbo make more torque, it just wouldn't make sense. I have seen a BONE STOCK Buick Turbo with a 3.8L turbo (gasoline) in a HUGE HEAVY car pull the front tires and run an 11.40 at over 120mph...STOCK.. all he did was work the waste gate on the turbo to up the boost (the only change to make to the car is the racing fuel from the track). find figures for a single-turbo 3.8L and compare them to the 3.8L's with the same PSI of boost.