Silencer box internal diagram

Rickard M · Post by **Rickard M** » Mon Nov 10, 2008 5:28 pm

I used the same guide as Andy shows, sounds very nice!

I used 60mm stainless pipes. I now feel peckish for making exhaust spliters like this (see links below), just because I think it looks cool, does it also reduce the sound level? or what do the do?
http://www.flickr.com/photos/johndglynn ... 9/sizes/o/
http://www.flickr.com/photos/johndglynn ... otostream/

TheEasyLife · Post by **TheEasyLife** » Mon Nov 10, 2008 5:58 pm

(puts on Homer Simpson voice) "MMMmm... Megaphones"

Now that is what I want on mine.
Or those on one of the RS's for sale at CLM such as these.

Or one this one

Hmm, dear Santa....

Cheers

James

mycar · Post by **mycar** » Sun Dec 14, 2008 4:24 pm

I`ll tack this onto this thread, as it seems the best place to ask.

Have you ever seen one of these missile launchers before and does anybody have an internals diagram ?

Mike.

hot66 · Post by **hot66** » Sun Dec 14, 2008 4:28 pm

Mike ... noooooo, they look awful, just like the old cheap tat 'Monzas' they used to try & sell to the Vdub crowd

Matt black70 · Post by **Matt black70** » Sun Dec 14, 2008 4:53 pm

I'll second that James, the old Monza's were terrible,how could anybody do that to an early 911.

Lightweight_911 · Post by **Lightweight_911** » Sun Dec 14, 2008 5:02 pm

That looks like an Abarth exhaust - or a copy of one.

Here are some photos of 911R #20 fitted with such an exhaust:

mycar · Post by **mycar** » Sun Dec 14, 2008 5:15 pm

hot66 wrote:Mike ... noooooo, they look awful

Much as I value your opinion James and would normally bow to your superior judgement in all matters Porsche, I would like to point out, they actually look utterly brilliant and the only shame is, that they don`t produce a 6 or 8 pipe version.

Turns out it`s an Abarth stroke of genius and anything good enough for a Fiat is bound to be an excellent addition to my car.

With stock 0-60 times of only 5.9 secs for my car, a tasty exaust like this can only improve things.

Mike

Project 911 · Post by **Project 911** » Sun Dec 14, 2008 5:32 pm

I think this is by far best looking exhaust for 911R or ST, anybody have one?
It looks be be almost straight through, they must be either LOUD or VERY LOUD!

(still I want to get one)

http://www.pbase.com/9146gt/image/45804706

Lightweight_911 · Post by **Lightweight_911** » Sun Dec 14, 2008 5:47 pm

Ville - I have one of those on my car.

I have supplied a few of them to builders of ST/RSR inspired cars - either with or without headers:

Project 911 · Post by **Project 911** » Sun Dec 14, 2008 6:16 pm

How usable they are Andy, do they provide any silencing at all?

They are not badly priced either, less than 600 euros from Germany.

hot66 · Post by **hot66** » Sun Dec 14, 2008 7:24 pm

mycar wrote:
hot66 wrote:Mike ... noooooo, they look awful
Much as I value your opinion James and would normally bow to your superior judgement in all matters Porsche, I would like to point out, they actually look utterly brilliant and the only shame is, that they don`t produce a 6 or 8 pipe version.

you sound like the 7 year old kids I was at school with .... obviously the more exhaust pipes the faster a car was

....I remember my neighbours go-kart he built was faster than mine because he manufactured 8 tail pipes out of 1"x2" section wood .......... mine only had 2

mycar · Post by **mycar** » Sun Dec 14, 2008 8:06 pm

Mmmm, two by one you say? That I can try.

Mike.

Alan @ CanfordClassics · Tue Dec 16, 2008 8:23 pm

In case it helps here is a pic of an exhaust that was cut open in the last few days.

and a few pics of what we did to an older stainless steel exhaust

Alan

Roadrunner · Post by **Roadrunner** » Sun Jan 11, 2009 5:26 pm

Alan.UK wrote:In case it helps here is a pic of an exhaust that was cut open in the last few days.

and a few pics of what we did to an older stainless steel exhaust

Alan

That looks like it might be mine !

Hopefully picking the car up from Alan next week. Report and pics to follow.......

www.fluidimages.co.uk

KS · Post by KS » Sun Jan 11, 2009 6:21 pm

The stainless-steel sport muffler I had on my Carrera 2.7 passed the Brands Hatch noise test with both pipes uncapped. Not sure of the figures but clearly OK for the MSA at the time.