
Over all the excitement of buying my bits for the turbo set up, i have not give a thaught for fuelling of the car.
My zx9r engine is run on carbs, i will have stock internals and will be running 6psi of boost.
Will i need to mess about with the fuelling or will it be ok??
What do i need to buy if i do have to do something??
What do i need to buy if i do have to do something??
Petrol (lots of ) 
I expect you will need to get the carbs set up and re-jetted.
the carbs have had a TTS dynojet kit in already so in that department i am already done.
I was just wondering if the carbs would sense if there was more air being thrown in that the fuel would automatically alter aswell to give the correct
ratio???
and most importantly, a rising rate fuel pressure regulator.
This increases the fuel pressure as the boost increases via a feed line running from the pressurised side to the regulator. Your fuel pressure always
has to be higher than the boost pressure otherwise you wont get fuel flowing through the carbs.
quote:
Originally posted by evo.rocks
the carbs have had a TTS dynojet kit in already so in that department i am already done.
i thought there was issues potentially with bike carbs on different pressures externally and internal with boost? fuel pressure will need some link to rising pressure against boost too
quote:
Originally posted by will121
i thought there was issues potentially with bike carbs on different pressures externally and internal with boost? fuel pressure will need some link to rising pressure against boost too
hi, inmho you would need to get rid of the carbs and run throttle bodies and have it mapped
cant realisticly see it running right on carbs without a real load of hassle but basically as atmospheric pressure is 14.7 psi and your gonna run 6psi
boost youll need a 50 to 60 percent fuel increase on boost so your dynojet kit and jets will be way off
also not sure how the diaphrams will react to having boost instead of vacum to lift the slides
Ray
quote:
Originally posted by RAYLEE29
hi, inmho you would need to get rid of the carbs and run throttle bodies and have it mapped
cant realisticly see it running right on carbs without a real load of hassle but basically as atmospheric pressure is 14.7 psi and your gonna run 6psi boost youll need a 50 to 60 percent fuel increase on boost so your dynojet kit and jets will be way off
also not sure how the diaphrams will react to having boost instead of vacum to lift the slides
Ray