My latest addition...

is there any changes made to the 09 top end from BZM?

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full tilt STAMAS SR FACTORY Built & Tuned @ BOLLINS RACING
http://www.pocket-bike-racing.com.au...actory-10.html

yeah the exhaust port shap is a little different, i should have one soon so i will know for sure if they are any better

The top of the exhaust port is squared off as opposed to full oval shape, the two holes for the exhaust port are also a different shape and the boost port is also higher..

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SMALL WHEEL SUNDAYest 2008


@ LAKESIDE PARK

SWS forum here >>>> http://swslakeside.46.forumer.com/ <<<<

Can i lick it??

pure beauty that bike there is. those tig welds are flawless! looks tough as!

Also with a custom made billet velocity stack..

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SMALL WHEEL SUNDAYest 2008


@ LAKESIDE PARK

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that looks like a giannini velocity stack just like the ones we have

That stack looks perfect to suck in any ambient steel shaving from your chain into your new engine, just ask WBR all about that i believe be ruined a new engine like that once, just bad luck i guess.

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I can assure you that it is a custom made velocity stack.. It is also 15mm longer than the Giannini stacks.. Hansen Racing turned it up on his lathe and put a thread in it..

As for sucking in shavings, I doubt there is any worry for that.. The Giannini pipe is an under the motor pipe, so the stack itself sits behind and slightly to the brake side of the pipe, essentially protecting it from debris and also has the rear mud gaurd to stop most crud flying up..
If a chain is well lubed there really should not be any 'shavings' coming off the chain..

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SMALL WHEEL SUNDAYest 2008


@ LAKESIDE PARK

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looks wicked. i didnt think a velocity stack would work with a straight taper like that (unless its radiused on the inside?). guess ill have to knock one up for me now

hows the techno clutches going?

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It's not straight on the outside, it is tappered just may not be noticable in the picture..
It is also tappered on the inside..


I can't speak highly enough of the Teckno X clutches.. I'd rate them higher than Zocchi and BZM..
They have excellent bite and grab all through the rev range..
Best thing about the Teckno X clutches is that they are way cheaper than the other brands but perform slightly better..
I'm running Teckno X in my Giannini and WRS..
I will not be going back to the other brand clutches!!!

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SMALL WHEEL SUNDAYest 2008


@ LAKESIDE PARK

SWS forum here >>>> http://swslakeside.46.forumer.com/ <<<<