R56 HP limits of new Engine?
#26
Originally Posted by Dr Obnxs
and others that use the low pressure turbos (5-7 lbs boost maximum).
Matt
Matt
#27
Most motors on steroids have issues....
But turbos shure are easy to add power, just turn up the boost! But when cars are getting ever heavier, and you still want to accelerate quickly, the only way to do that is burn more gas!
Thing is, here in the good ol USofA, we have cheap gas, so we tend to get power over economy.
Matt
and RockC, a turbo is only a win-win if you don't need any low RPM torque....
Matt
Thing is, here in the good ol USofA, we have cheap gas, so we tend to get power over economy.
Matt
and RockC, a turbo is only a win-win if you don't need any low RPM torque....
Matt
#28
#29
#30
Originally Posted by Dr Obnxs
and RockC, a turbo is only a win-win if you don't need any low RPM torque....
#31
#32
Originally Posted by Dr Obnxs
with the twin turbo 2.7. It was impressive as well. They limited the torque via computer to 250 ft lbs over quite a bit of the RPM range. Wonder what the torque curves would look like without the electronic mother in law?
#33
Originally Posted by RockC
But increased fuel economy, as good as and probably better performance than the comparable supercharged engine, reduced noise, make the changeover to a turbo-charger a win win.
Sincerely,
RockC.
Sincerely,
RockC.
Sorry to be such a whiner (pun intended)
#34
rE: supercharger noise vs. turbo-charger noise...
Originally Posted by paul_
REDUCED NOISE?!?!?!? What do MCSers live for? The beautiful wheeeeEEEEEEEEEE! of the supercharger. NOISE! not the silly psssshh od a blowoff valve, although the twincharge kits combine the two and it sounds pretty tight... but that's still got a S/C.
Sorry to be such a whiner (pun intended)
Sorry to be such a whiner (pun intended)
I don't expect the new turbo-charged engine to have a blow-off valve. That's so past it. New turbo-chargers use a variable vane setup -- under control of the engine controller unit (engine computer) -- to modify the effectiveness of exhaust gas flow into the turbine to control the amount of pressurization at the compressor side.
Turbo-charged diesel engines have used these for a while but only recently (within the last couple of years) have turbo-charger makers sorted out these for gasoline engines and their higher exhaust gas temperatures.
Sincerely,
RockC.
#35
Originally Posted by caminifan
Hmmm. Try checking out the Volvo S40/V50 with the T5 engine - they have stump-pulling torque low in the RPM range. When I first drove one, I thought I was driving an H1 Hummer Alpha. So, it is possible to tune a turbo engine for high torque low in the rpm range. All we can do is wait until the BMW turbo engine is released to see what it actually can do.
Sincerely,
RockC.
#36
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