Anatomy of a Hayabusa exhaust system
#1
Why?

Because it is a work of art. It is made of the finest materials, adheres to proven theory, barely affects performance, is quiet and meets the strictest emissions tests. The only compromise is weight....

I recently cut up a set for a separate project, thought I might share my findings. I could help but think that some engineer in the might Suzuki works got an internal award for his efforts. Or maybe a cup of saki in a plastic cup.

Firstly, the headers. They contain a carapace within which is another stainless steel shell holding two catalytic converters. Some high tech insulation is sandwiched between the two shells.

[Image: CatalyticConverters001copy_zps6de14add.jpg]

The above image shows the position of the stock narrow-band oxygen sensor, the wide band was fitted by myself for logging purposes.

Here's a close-up of the cat. Unlike the ceramic matrices you find in cars, this one is metal. And heavy!

[Image: CatalyticConverters003_zps558b2a16.jpg]

Here is a close-up looking into the incoming headers. The second stage pipe diameter follows traditional exhaust ratios, in this case 1:1.5 of the headers, i.e. the cross sectional surface area of the stage two pipe is 1.5 times that of the two headers that feed into it.

[Image: CatalyticConverters006_zps412c4012.jpg]

Not the smoothest transition, but far better than aftermarket pipes I've seen.

Now for the mufflers....

[Image: Tackwelded001_zpsdf01997c.jpg]

First, a cutting disc on the Dremel to remove the tack welds on the retaining screws.

[Image: TackWelded002_zps6e0e8295.jpg]

TBC...
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Messages In This Thread
Anatomy of a Hayabusa exhaust system - by Camel - 20-05-2013, 09:18am
RE: Anatomy of a Hayabusa exhaust system - by CaptainRob - 20-05-2013, 11:14am
RE: Anatomy of a Hayabusa exhaust system - by RYDRZ - 20-05-2013, 09:32pm
RE: Anatomy of a Hayabusa exhaust system - by RYDRZ - 20-05-2013, 09:41pm
RE: Anatomy of a Hayabusa exhaust system - by CaptainRob - 21-05-2013, 09:44am
RE: Anatomy of a Hayabusa exhaust system - by CaptainRob - 21-05-2013, 12:07pm
RE: Anatomy of a Hayabusa exhaust system - by CaptainRob - 22-05-2013, 02:39pm
RE: Anatomy of a Hayabusa exhaust system - by CaptainRob - 23-05-2013, 07:46am
RE: Anatomy of a Hayabusa exhaust system - by GRUNTMAX - 29-12-2013, 12:10am



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