Whadda you think?

[Norton]

Those of you who were at Rotorstock will remember a certain white (and pink) Norton Rotary \'Streetfighter\' motorcycle called \'Speed Trochoid\'. The owner has just built this new exhaust for it, whadda you think?....

[Norton]

and again...

[Norton]

and again...

[g11ary]

excellant, a rotor shaped exhaust, why the bloody hell did I not think of that when having my custom jobbies done. Top job.

[clive]

Wow, that\'s a work of Art:)

Seems a shame to bolt it on anything and subject it to all those nasty gasses.

[Norton]

Ive spoken to Geoff about it and he says that if anyone wants a Trochoid back box made for their mazda he would be up for it. Geoff made the exhaust on my bike and its top quality, Stainless and Titanium throughout.He is a welder in the aircraft industry so he knows his stuff.

[MikeLMR]

cool, thats going to be loud

I\'ve seen these in Oz before and they look very :cool

[monkeyboy]

I have a FD how much will it be for that? That really is the coolest thing i have seen in a long time

[Norton]

Originally posted by monkeyboy
I have a FD how much will it be for that? That really is the coolest thing i have seen in a long time

Not bad is it?! An RX7 version will have to be built to order and i expect Geoff will need the dimensions you want it made to. You will have to discuss price with Geoff. PM me with your email address and i will pass it onto him.

[Carl]

That is really great work!!
One small point,the rotor housing is the trochoid and the rotor is the the rotor.
Not that I wish to take anything away from the work,it is fantastic.
Regards
Carl

[MikeLMR]

Hi Carl, a trochoid is a linear version of the rotor housing profile which is a epitrochoid with very specific dimensions.

Epitrochoid

Trochoid

Nice Java demonstration

I\'ll shut up now (I think Clive wants his rotary anorak back )

[Norton]

Oh!... thanks for pointing that out. I knew the shape of the housing was an Epitrochoid and always assumed that the shape of the rotor was the Trochoid.

[James S]

That\'s some impressive workmanship! :god

[Norton]

Is this a standard FD exhaust???....

[clive]

The box shown looks like a Racing Beat aftermarket one, the stock box has two little pipes out of the back.