Mazda Rotary Club

General => General Technical => Topic started by: m1tch on August 10, 2009, 06:39:07 PM

Title: Screamer pipe with silencer?
Post by: m1tch on August 10, 2009, 06:39:07 PM
Hi guys, just wondering about this, I have seen lots of screamer pipes that are obviously just a bit too loud for a track lol has anyone made a muffler or a silencer for a screamer pipe, or do people either plumb it into the downpipe or leave it unsilenced?
Title: Screamer pipe with silencer?
Post by: col_fd3s on August 10, 2009, 07:17:36 PM
mines unsilenced, and god is it loud!
 
can\'t imagine it\'d be that hard to make a silencer for them, but would there be any detrimental effect from restricting it?
Title: Screamer pipe with silencer?
Post by: Jono FD3 on August 10, 2009, 07:30:18 PM
you would be better off pipeing it in to the exhaust system mate as if you silance it seperatly I think it might affect things!
Title: Screamer pipe with silencer?
Post by: m1tch on August 10, 2009, 08:13:45 PM
How far down would I need to route the pipework? I know I don\'t want to mess up the gas flow too close to the turbo exit lol has anyone tried to silence a screamer pipe with a bike can or something?
Title: Screamer pipe with silencer?
Post by: mx1311 on August 11, 2009, 08:54:52 AM
plumbing it back in will loose you more power than running a seperate silencer

hth

colum
Title: Screamer pipe with silencer?
Post by: Jürg Hensdiek on August 11, 2009, 11:30:45 AM
Lost 53ps off the FC when rerouting currently have a seperate muffler. See attached.
 
J
Title: Screamer pipe with silencer?
Post by: strange_days_uk on August 11, 2009, 12:09:16 PM
You can use the muffler from a scooter, get busy with a welder..
Title: Screamer pipe with silencer?
Post by: L18M on August 11, 2009, 12:53:38 PM
i didnt realise it would make such a big difference?! 53ps!
thats like 10% increase by using a silencer route.
Title: Screamer pipe with silencer?
Post by: m1tch on August 11, 2009, 12:55:59 PM
Thats exactly what I wanted to see lol :) awesome, have you got a video of it at all? What can is that from? Im pretty sure thats metal drain pipe you are using for a downpipe lol thats a mental sized downpipe :D
Title: Screamer pipe with silencer?
Post by: Jürg Hensdiek on August 11, 2009, 04:49:00 PM
The system is 4\'\', but no drain pipe ;)
 
Not necasserily 10% Each set up is different, and our loss was with a gentle flow in at the far end of the downpipe. Set ups with a direct 90 deg feed will loose more.
 
A point to note is that an increase in overall torque is found with both the muffler and the feedback, more with the plumb in though. Torque was increased by 27ftlb throught the curve.
 
J
Title: Screamer pipe with silencer?
Post by: m1tch on August 11, 2009, 07:12:38 PM
What kind of silencer is that? im guessing it must be quite good to keep up with the crazy rotary temps that it will be under, considering it will be used when the turbo is on full chat lol :D