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  • 3 weeks later...

decent tips for tuning the naturally aspirated 5efhe anyone ?

A good intake (itb? like they said here),increase compression close to 12.1, this is what i have done with my 5efhe cynos first before going to turbo

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Not yet @Richard currently running yamaha fj1100 carburettors and they are old. Experimenting with constant velocity slides for a wider torque curve. My compression is too high to be messing with these carbs much longer. Next step is to finish my new intake adapter for my 03 yamaha R6 itbs and go efi with megasquirt and the 5EFE dis coilpacks. Everything is inplace just need to weld the adapter up, and have the megasquirt wired... And swap in my fuel pump.... And run the efi fuel lines... Sigh

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