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Old Apr 20, 2005 | 09:59 PM
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Mark V8
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Joined: May 2003
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From: Essex
Default My DIY turbo EFI bike project

Started off with 1989 Yamaha FZR1000 EXUP, did a rebuild with 6 speed box, 1040 kit, billet clutch etc and after a while got bored with 137bhp at the wheel and for some reason decided that a turbo would be a good idea
Running with an IHI bitsa turbo and home made manifold blowing through some troublesome carbs

First ex manifold was a log type

Mk2 version half complete



Nearly done



Baked in the oven with "ceramakote"



fitted



Half made plenum/intercooler



Fitted over carbs with tempory cement mixer fuel tank for tuning purposes



Trying to get CV carbs to work with a blow through turbo system with large cam overlap turned out to be a stupid idea Massive overfueling at low rpm made the bike splutter it's nuts off on a warm day and it was only any good over 6000rpm
Pic shows AFR and BHP at wheel on a hot day at the dyno.



PLAN B
Ditch the carbs and megasquirt it.



Stock inlet manifolds modified to convert from 38mm CV carbs to GSXR750 46mm bodies.



Bodies re-spaced and modified with Jag V8 injectors and billet fuel rail.



End body modified to take GM TPS



Fitted



Escos FPR and billet remote housing





Still have to make the old plenum fit new bodies, find a home for MegaSquirt and make wiring loom but it should be running this year I hope !

Mark
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