cardo0

How do i make my cummins quite?

My '96 is too noisy with my close neighbors. I listened to a 2013 cummins recently and man it was a quite as a gas engine. How did they do that? Is there any way i can get mine that quite?

cardo

14psisupra

iTrader: (1)

Don't think an old 12 valve will ever be quiet

cardo0

I'm wondering how they do it with the later models. I heard there is some noise suppression inside the valve cover and oil pan.

fastlane01

iTrader: (1)

Not real sure about the suppression. The 4th generation do sound way different than the previous generation 6.7's. Far as your 12v try out flo pro or diamond eye exhaust with their mufflers. That should help out quite a bit

cardo0

Thx fast lane but those look like performance enhancers not noise reducers.

FrostKing

I believe the castings have noise considerations as well as the method used to control the injectors.

cardo0

Is there a fix or anything that would help my '96 Frosty?

FrostKing

Not really.

MustangPunk

iTrader: (1)

Yeah like said, it wont ever be that quiet. Only with a engine swap haha.. The newer diesels with piezoelectric injectors precisely control the combustion event with pilot injection, which really quiets them down.

vettelovralexand

Cummins doesn't use piezoelectric injectors. You will never get a quiet engine with only a single injection pulse.