Help Please Uncle Bob!

[exupturbo]

It looks like the 5 Valve Genesis engine in super sensitive to any changes to intake and exhaust.

The dynojet instructions are quite clear about removal of float bowl vent tubes which is a bit of a pain when turbocharging.
I'm now 90% sure the over rich running is caused by the tiny amount of pressure in the float bowls forcing some extra fuel through the pilot jet(idle jet?) Dynojet recomend altering the pilot jet air corrector which is on the face of the carb but I know this does not work on turbo aplications because I've tried every size going to no real effect. The solution I'm hoping is to change the pilot jet itself and lower the needles. Stock jet is #40 for the FZR1000 and on the FZR600 it is a #30. Must be worth a go?

Mark

 

[Uncle Bob]

yes, FZR's are very famous for their sensitivity to intake mod's.

Running 30's on the idle jets probably won't work, but hell, why not try it. I'd still try my suggestion, but its your bike.

 

[exupturbo]

I've been a busy boy over the winter and have nearly completed FI setup.

38mm carbs V 46 mm GSXR750 throttle bodies.

Exup inlet stubs modified to take GSXR rubbers

Billet housing for 3 bar Escort Cosworth FPR

assembled

end body modified to take GM TPS

re-spaced bodies with supercharged Jaguar V8 fuel injectors 345cc min at 3 bar (really a Denso/ford part) and billet fuel rail

Bodies in place and fitted with adaptors to fit original plenum

I'm 90% through wiring up the Megasquirt and should hopefully fire it up this weekend  

Mark

 

[Uncle Bob]

you've definitely been busy alright!

whats your management system? megasquirt?

 

[exupturbo]

Yes Bob, I went for Megasquirt in the end.

http://bgsoflex.com/megasquirt.html

I cheated and bought a ready built Megasquirt 2 and will be triggering it from the tacho signal keeping the original ignition system.

Mark

 

[Uncle Bob]

Yes Bob, I went for Megasquirt in the end.

http://bgsoflex.com/megasquirt.html

I cheated and bought a ready built Megasquirt 2 and will be triggering it from the tacho signal keeping the original ignition system.

Mark

interesting! I didn't know you could trigger it with so little signal input. But I guess it shouldn't surprise me since you'll have to use batch injection anyway.

The more I play with the idea, I've thought heavily about seeing how cheaply I could do it for on my bike.....