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In this new decade the old PowerPC Macs have become a little obsolete... Don't throw yours in the bin.
Join in and help support this rapidly expanding new extreme sport by turning your ancient Mac case into a mean-wheeled speed machine! You may be surprised at just how fast your old G3/G4 Powermac can still go and the range of different event classes afford a project to suit every budget, big or small! With the Pro-Stock, Pro-Mod, MOTO G4 and SUPER MOTO G4 series to choose from, it's no wonder that this is the most exciting computer-chassis-based motorsport and downhill skating league in the WORLD!!

Monday, 25 April 2011

MOTOG4 TURBO - Hooked the 'Busa pipe up.

Hooked up the Hayabusa exhaust can today and got the supercharger working somewhat using a thick rubber-band and a short tube with a grub-screw to extend the crank-axle stub, although this needs a lot of fine tuning before it'll spin well under engine power. Thought I'd give it a try anyway and couldn't wait to hear the new exhaust sound, but alas she wont fire up. There's no spark for some reason, so I'll have to wait until next weekend to get it sorted, shame.

To get the new exhaust on I chopped the old one off on the up-pipe, removed it completely from its mount under the seat and cut the small silencer off leaving the start of the truncated section as the end of the pipe. With a little shaping with a ball-hammer the truncated section slips perfectly into the 'Busa can and fits tightly into the smaller diameter pipe a few inches inside it. To get the cut pipe at the manifold over to the opposite side I added a new 6" section, using aluminium pipe and fixed it into place with a wealth of ally-tape, it'll be fine for this application.



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