I guess what I meant to say is there a drone in the cab. Most people with the aero 4040 say it usually needs the resonator that the xl usually has. I'm looking at gutting my cat, but don't want it louder than it is now.
I guess what I meant to say is there a drone in the cab. Most people with the aero 4040 say it usually needs the resonator that the xl usually has. I'm looking at gutting my cat, but don't want it louder than it is now.
I recall when installing my Banks powerpack that I cranked the engine during the period where there was no exhaust installed. The engine was not noticably louder. The old mechanical fuel injection was still the biggest noise maker. The turbo makes a pretty good muffler all by itself.
I recall when installing my Banks powerpack that I cranked the engine during the period where there was no exhaust installed. The engine was not noticably louder. The old mechanical fuel injection was still the biggest noise maker. The turbo makes a pretty good muffler all by itself.
Ive seen some turbos that say on them "muffling Device"
Your turbo is a bit of a muffling device. A little, but not much.
The biggest reason the old engines were so much louder was the cylinder pressure and timing.
The old 12V's only had 1 injection event per cycle and this made the cylinder pressures spike which causes the "diesel rattle"
The newer engine have the pilot and post injection events that prevent that spike and subsequently lower the engine noise.
A straight piped 12 valve will set off car alarms. A straight piped 6.7 is still pretty quiet, the loudest thing you hear is the turbo.
Hi Coal Train
Thanks for all the great information you share with us,maybe we can get your thoughs on the so called death wobble.....
I enjoy reading your post and getting informed
Thanks again Mike
Hi Coal Train
Thanks for all the great information you share with us,maybe we can get your thoughs on the so called death wobble.....
I enjoy reading your post and getting informed
Thanks again Mike
Just so as not to get to far off the original topic, start a new thread on this subject.
Actually, there is a lengthy thread about it already.
The last post by God Ram It pretty much explains it, bad geometry.
