Mufflers & motorsport

[roon]

Why is this considered taboo?

[JonoNic]

I'm not sure what you are asking about here. Mufflers can restrict the flow out of an engine therefore hindering performance yet the car can be illegal without them. Noise limits at tracks.

[flynfrog]

Hacked on mufflers to past sound check at Laguna Seca

[marmer]

Would be nice to see straight pipes out of the engine for each cylinder but current regs don't allow it I don't mean an exhaust system to the back of he car I mean poke straight out of the engine block a couple of cm to be flush with body

Sent from my HUAWEI VNS-L31 using Tapatalk

[Manoah2u]

Hacked on mufflers to past sound check at Laguna Seca

http://www.burnsstainless.com/images/te ... y_2011.jpg
https://rennlist.com/forums/attachments ... pipe_2.jpg
http://www.racingonthecheap.com/wp-cont ... 00x225.jpg
http://oi68.tinypic.com/oadilw.jpg

so.......my first question is.....why on earth race on laguna seca then? i mean it's a cool track and all, but.....well....what the hell

[zac510]

I didn't know mufflers were taboo. I've seen many mufflers on race cars, but it seems to go by the racing series (ie series regulation).

[flynfrog]

Hacked on mufflers to past sound check at Laguna Seca

http://www.burnsstainless.com/images/te ... y_2011.jpg
https://rennlist.com/forums/attachments ... pipe_2.jpg
http://www.racingonthecheap.com/wp-cont ... 00x225.jpg
http://oi68.tinypic.com/oadilw.jpg

so.......my first question is.....why on earth race on laguna seca then? i mean it's a cool track and all, but.....well....what the hell

Practice day. They can be louder for race events.

[BanMeToo]

Hacked on mufflers to past sound check at Laguna Seca

http://www.burnsstainless.com/images/te ... y_2011.jpg
https://rennlist.com/forums/attachments ... pipe_2.jpg
http://www.racingonthecheap.com/wp-cont ... 00x225.jpg
http://oi68.tinypic.com/oadilw.jpg

This was my first thought when I saw the thread title.

[strad]

why on earth race on laguna seca then

The first thing that comes to my mind is points.
You don't want to miss the points.

[DiogoBrand]

Hacked on mufflers to past sound check at Laguna Seca

http://www.burnsstainless.com/images/te ... y_2011.jpg
https://rennlist.com/forums/attachments ... pipe_2.jpg
http://www.racingonthecheap.com/wp-cont ... 00x225.jpg
http://oi68.tinypic.com/oadilw.jpg

Why are they all pointed to the left side? I know this will sound silly, but is the noise measured from the right side of the car?

[JonoNic]

Hacked on mufflers to past sound check at Laguna Seca

http://www.burnsstainless.com/images/te ... y_2011.jpg
https://rennlist.com/forums/attachments ... pipe_2.jpg
http://www.racingonthecheap.com/wp-cont ... 00x225.jpg
http://oi68.tinypic.com/oadilw.jpg

Why are they all pointed to the left side? I know this will sound silly, but is the noise measured from the right side of the car?

You are right. The track runs clockwise. Sound check must surely be infield... so why point muffler infield?

[marmer]

aim sound infield to keep noise down perhaps

[flynfrog]

I'm guessing the test MIC is on the outside of a turn somewhere.

[BanMeToo]

Turn 5 unless they've changed it in recent times. I found this:

https://www.southbayriders.com/forums/threads/59281/

[Santozini]

Hacked on mufflers to past sound check at Laguna Seca

http://www.burnsstainless.com/images/te ... y_2011.jpg
https://rennlist.com/forums/attachments ... pipe_2.jpg
http://www.racingonthecheap.com/wp-cont ... 00x225.jpg
http://oi68.tinypic.com/oadilw.jpg

Why are they all pointed to the left side? I know this will sound silly, but is the noise measured from the right side of the car?

You are right. The track runs clockwise. Sound check must surely be infield... so why point muffler infield?

Laguna seca is anti-clockwise