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ducati v2 motor 91-99

Posted: Thu Jan 22, 2009 2:51 pm
by cvdm
Hi everyone
I would like to switch my bike, which is actually a cagiva elefant 750 with a ducati 750 ss motor on it, to efi. I have diy hand on experience with bikes but mostly repairing or restoring, and never went to modifications or tuning beyond a milde port or polish or a carb jet kit. I have a pro mechanic as best friend also, but he has poor knowledge on engine electronics but he is always a help. So bare with my ignorance pls and I promise I'll read on while collecting parts or ebaying.
As I have some kind of a plan in my mind, after reading some threads and manual, seems like it is not such a big deal but maybe its just my ignorance.
Parts I have on my list are:
A pair of throttle bodies from post 2000 monster 750ie with tps from ebay, some mild mods to fit airbox and / or throttle cable
An external fuel pump - filter. Tank has second outgoing piping for the right side that I could use for fuel return
Air temp sensor
Oil temp sensor since its aircooled. Ducati has an oem one that uses to meassure oil temp (mine hasn't the gauge and has a bolt filling the hole on front head) on 900's. Its a bolt on to mine.
An o2 sensor like a bosch wideband from honda or volvo which are about 70euro here, and a machine shop to drill my exhaust pipe to make a bolt for it.

Bike has two pickup coils on single flywheel, left side of cruck. I pressume this are vr sensors or am i wrong?
If those are vr sensors then i pressume that nothing else is missing but the spark issue. Am I correct or day dreaming?

If these coil pickups are vr sensors do I need both? Should I go for single or dual ignition input and why?
What about ignition? Wasted spark, direct or other (and why pls)?

My plan is to make my shopping list, get the parts, install them as quick as possible because i need the bike to commute. A week installing and maping should be my best case scenario.

Thank you all in advance
Dennis

Re: ducati v2 motor 91-99

Posted: Thu Jan 22, 2009 2:54 pm
by cvdm
I forgot to tell you that bikes tacho is feeded by cable from front camshaft, so nothing to do there!!

Re: ducati v2 motor 91-99

Posted: Fri Jan 23, 2009 6:47 am
by Matt Cramer
Sounds like a plan. I'd go for fuel only control first and get that straightened out before tackling spark control.

On the ignition, do each of the pick-ups have two wires, or are there more than two wires per sensor? Also, is there an advance mechanism of some sort built in?

Re: ducati v2 motor 91-99

Posted: Sat Jan 24, 2009 7:51 am
by sportage4x4
the two pickups are both normal VR sensors. mounted exactly 90* apart on their mounting plate. the flywheel has one single tooth. the stock coils are garbage, so use some better aftermarket single tower coils. if you have the coils from the factory efi version, those work well too.

this setup should run fine with standard Dual Spark setup. each cylinder has its own crank sensor, and the offset is built into the physical location of the sensor, so no software offset required.