Speed-Talk is running on www.Speed-Talk.com

IMPORTANT: Update your bookmarks to https://www.speed-talk.com/forum/
(Right-click the URL and select "Bookmark this link")

A pipe or chamber for drone reduction?

General engine tech -- Drag Racing to Circle Track

Moderator: Team

Post Reply
Posts: 632
Joined: Tue May 24, 2005 10:45 pm
Location: Los Angeles, in The People's republic of Kalifornia

A pipe or chamber for drone reduction?

Post by sc2dave »

Is it more effective running a chamber or just a pipe? Is there a site that has a program where you can punch in numbers and get the size you need? Also, can you use 1 chamber for 2 headers?
Posts: 313
Joined: Mon Nov 04, 2019 9:01 pm

Re: A pipe or chamber for drone reduction?

Post by dannobee »

Google Helmholtz exhaust resonator.

The bottom line is this. Do the math for the length/size of the pipe to get you close, then find another pipe that slips over that pipe and attach the two with a muffler clamp. Drive the car and test. Vary the pipe length at the clamp until you achieve your desired result (just like a trombone). Then weld up the two pipes and take off the muffler clamp.
Post Reply