Quiet Cummins...
#2
#4
RE: Quiet Cummins...
ORIGINAL: RcBandit28
When the heavy duty trucks got the new body style in 2003, was when the Cummins Engine was re-worked to make it quieter. Yes, there is a significant difference.
When the heavy duty trucks got the new body style in 2003, was when the Cummins Engine was re-worked to make it quieter. Yes, there is a significant difference.
I'll second that, but whats nice sounding is hearing that turbo spooling between 1600-2400rpm. . .music
however there are ways to make it louder, if you want more turbo whistle theres a damper you take out of the turbo that will be like putting an amp on a guitar and cranking it up.
the way Cummins got this engine more quiet is to do a pre-ignition dump of fuel right as the piston hits TDC, this acts as a buffer for the main charge of fuel as it enters the combustion chamber. plus the main dump is not one continous stream, it's bursts of fuel at different rates to keep the engine quiet throughout the RPM range, by doing this you are achieveing a more even and efficent burn of fuel produceing more power. I do miss the old clatter of the gen 2 engines, but when I pull side by side to a gen 2 and smoke the tires through 5th gear it makes me forget about the old clatter and the new ponies under the hood.