I have heard people talk of ignition cut but I have some instructions that state the injectors are to be cut instead. Is this right?

Jason

[Edited on 26/10/08 by Jason Fletcher]

Taken from www.trickshifter.com

When the gear lever is operated in the upshift direction the shift rod sends a signal to the control unit when a pre-set amount of force has been applied to the gear lever. The control unit momentarily "kills" the engine by disconnecting the ignition coils, removing the torque from the gearbox and allowing the gears to move, giving a virtually instant gear shift. The control unit then re-connects the supply to the ignition coils allowing the engine to run again. The kill time is typically around 60ms but may be adjusted on the control unit. The control unit also has a 250ms lockout time immediately after the kill time to prevent multiple triggering caused by bumpy road surfaces or friction in the gear linkage. Shifts can be made smoothly and quickly at part or full throttle.

On my GSXR's, there's the handy single +12V feed to the coils, this is what I cut momentarily.

I cut the ignition on mine. Quite entertaining though, I think my carbs must run rich on part-throttle. If I'm tootling about on part throttle and then change up there's sometimes an almighty bang from the exhaust So from that perspective it might be better to cut injectors if you have that option.

[Edited on 27/10/08 by gingerprince]

well it turns out I can't cut the injectors because the power commander also uses the live from the injectors so it would cut that too.

I have fitted it to the coils but the up changes are not smooth. It's still clonking and I was expecting seemless upchages. Or am I expecting too much?

chris
Although I have not set it up on a rlling road I have spent hours doing so on a real road. and I know mine will certainly be really lean without the PC and I have no Lambda fitting on the exhaust currently either.

Cheers

Jason

i use a trickshifter that cuts the common to the coils,seamless changes..

the only thing we have found is that if the rear wheels are spinning you need to do a "lift" change...

hth
barney

You can fit Quick shift directly to the PC3USB.
See their www.