| Author |
Message |
gusc
Rating: N/A
Votes: 0 (Vote!) | | Posted on Sunday, November 06, 2005 - 11:40 pm: | |
Anyone running straight pipes on a non-turbo 6-71 conversion?
Is it even legal? |
pipes
Rating: N/A
Votes: 0 (Vote!) | | Posted on Monday, November 07, 2005 - 10:02 am: | |
"Is it even legal?"
I hope not! |
Jerry C
Rating: N/A
Votes: 0 (Vote!) | | Posted on Monday, November 07, 2005 - 4:36 pm: | |
I run a straight pipe on a tug boat And I can tell you that you DO NOT do this on a bus, over water you can hear it for 2 miles on a windy day. at 1400 rpm. |
Nick Morris (Nick3751)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Monday, November 07, 2005 - 4:45 pm: | |
I've run mine without pipes or muffler just straight out of the manifold and it's not that loud. |
Henry R. Bergman, Jr. (Henryofcj)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Monday, November 07, 2005 - 5:18 pm: | |
Believe it or not Detroit Diesel still publishes guide lines on the necessary/desired exhaust pipe length on their various models of 2-stroke mills. We learned this stuffing 453's into pickups.
Sometimes you can even "tune" the exhaust system to give your maximum power or torque at a particular rpm range. A longer pipe helps the low end torque.
And.....sometimes you get the most power by having a little bit of back pressure (like a muffler) that "pulses" thru the exhaust, sucking gas out of the mill. Go to www.detroitdiesel.com to learn more. |
gusc
Rating: N/A
Votes: 0 (Vote!) | | Posted on Monday, November 07, 2005 - 11:11 pm: | |
Quite a variety of responses, thanks.
Nick, did you drive it that way?
Henry, thanks for link-I'll give it a look. |
gusc
Rating: N/A
Votes: 0 (Vote!) | | Posted on Monday, November 07, 2005 - 11:38 pm: | |
Henry, I looked but didn't find anything so send DD an email. |
Nick Morris (Nick3751)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Tuesday, November 08, 2005 - 10:07 am: | |
Drove it some, a few miles. I've got a few small holes in the bulk head and it got pretty smokey inside. I drove it from Kentucky to south Ga with the end of the muffler blown off and heard no difference there, no performance change either. |
Henry R. Bergman, Jr. (Henryofcj)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Tuesday, November 08, 2005 - 5:20 pm: | |
gusc....sorrry I did NOT say that you need to communicate with DD to get the info you need. The website was assumed (by me, unfortunately) to be the beginning link to do soosss. Sorry for not telling you. Henry of CJ. |
gusc
Rating: N/A
Votes: 0 (Vote!) | | Posted on Wednesday, November 09, 2005 - 12:49 pm: | |
Henry,
No sorry necessary. I found a lot of info but nothing about exhausts. Most websites are too involved for me and I manage to waste a lot of time on them looking for something specific. In these cases I usually give up and email the owners. Most of the time this is much faster because too many websites are mazes.
Nick,
Thanks. I know what you mean about smoke. My hole was about the size of a quarter in the top muffler end and I was getting enough smoke to make it very unpleasant. |