Making a muffler

General engine tech -- Drag Racing to Circle Track

Moderator: Team

Post Reply
Brian P
Guru
Guru
Posts: 1341
Joined: Wed Jan 02, 2008 7:35 pm
Location: Toronto, Ontario, Canada

Re: Making a muffler

Post by Brian P » Tue Apr 10, 2018 9:52 pm

That sounds really good. Nicely done.

ptuomov
Guru
Guru
Posts: 2041
Joined: Fri Aug 07, 2009 3:52 am

Re: Making a muffler

Post by ptuomov » Wed Apr 11, 2018 7:02 am

Thank you for the comments.

The next steps on this are for John to button up the install and then drive the car around for bit. Next is tuning it on the dyno, and getting some back pressure data from the exhaust. Finally, a 1000 mile continuous test drive. I'll get some video and audio of the process.
[b]Paradigms often shift without the clutch[/b] -- [url]https://www.youtube.com/watch?v=cxn-LxwsrnU[/url]

ptuomov
Guru
Guru
Posts: 2041
Joined: Fri Aug 07, 2009 3:52 am

Re: Making a muffler

Post by ptuomov » Mon May 07, 2018 3:34 pm

The turbine outlet pressure is down from 2 psi to 1 psi, so 50% drop with less than 36% increase in the area. This is from debugging tests at about the same power levels (a hair under 700 rwhp).
[b]Paradigms often shift without the clutch[/b] -- [url]https://www.youtube.com/watch?v=cxn-LxwsrnU[/url]

ptuomov
Guru
Guru
Posts: 2041
Joined: Fri Aug 07, 2009 3:52 am

Re: Making a muffler

Post by ptuomov » Mon Jun 04, 2018 3:16 pm

The new exhaust is now sporting a bit of a tan, and and the system is making 2 psi of boost already at 1400 rpm:
8214B193-379C-416A-8079-FFAD879DD9BB.jpeg
You do not have the required permissions to view the files attached to this post.
[b]Paradigms often shift without the clutch[/b] -- [url]https://www.youtube.com/watch?v=cxn-LxwsrnU[/url]

Post Reply