st4s in 851, how to do electronics?

[Mr.R]

Jimmy,
I have a couple of 'ongoing projects' one of these is actaully in my '92 851,
it's a 851/916cc mildly tuned motor and I've done around 10,000 miles with it, the others a 984cc motor.
(still very much in kit form)
I'm using a P8 and got John Hackett of JHP/Ducati coventry to burn me a couple of 'Baseline' chips using the motors spec (that I'd supplied him with) to then use a PC III usb to fine tune them on the dyno.
One chip's for single and the other's for duel injectors, they cost me around £30 each.
The single injector chip made +1 rwbhp out of the box and another 5 rwbhp after a day on the dyno using the PC III usb over the set up FIM UM061 that I'd been using.
There must be someone (like possibly Doug Lofgren?) over in the States who can supply something similar, if you can't find one I could try Mr Hackett for you.
Brad Black might be able to help you here, I'm sure he's got a chip that you could use as a baseline on file.

Steve R

[marvin]

Originally Posted by brad black

i'd just get a loom from a st4 if possible and use that with the 1.6m. the 748/916/996 loom will be too long at the ecu end and won't have throttle body stuff. the 1.6m will fit nicely and is mostly reliable none of the later ones are as reliable as a p7 or p8 tho ime.

and because the 1.6m has internal coil drivers, you do away with the ignition boxes at the back of the bike, etc. helps makes the loom better. there's no way i'd go through the hassle of making it dual pick up.

Brad,
Do you know of any differences between the St4 harness and the St2? I checked the part numbers for an 02' St2 and a 00' St4 and there is one digit difference between the numbers.

[brad black]

tps connector, all 2v bikes use a different smaller tps with different connector. same as your 999 one and all the linear tps. apart from that i don't think anything is in a different location.

[brad black]

Originally Posted by Mr.R

Jimmy,
I have a couple of 'ongoing projects' one of these is actaully in my '92 851,
it's a 851/916cc mildly tuned motor and I've done around 10,000 miles with it, the others a 984cc motor.
(still very much in kit form)
I'm using a P8 and got John Hackett of JHP/Ducati coventry to burn me a couple of 'Baseline' chips using the motors spec (that I'd supplied him with) to then use a PC III usb to fine tune them on the dyno.
One chip's for single and the other's for duel injectors, they cost me around £30 each.
The single injector chip made +1 rwbhp out of the box and another 5 rwbhp after a day on the dyno using the PC III usb over the set up FIM UM061 that I'd been using.
There must be someone (like possibly Doug Lofgren?) over in the States who can supply something similar, if you can't find one I could try Mr Hackett for you.
Brad Black might be able to help you here, I'm sure he's got a chip that you could use as a baseline on file.

Steve R

there isn't a std cam 996 p8 eprom that i know of. could possibly make one by dropping the 916 to 996 single injector eprom mods over a 916 p8 eprom, but it'd be a guess at best.

[marvin]

Originally Posted by brad black

tps connector, all 2v bikes use a different smaller tps with different connector. same as your 999 one and all the linear tps. apart from that i don't think anything is in a different location.

Thanks Brad! Shouldn't be too hard to splice in a different TPS connector.

[vij]

Originally Posted by brad black

there isn't a std cam 996 p8 eprom that i know of. could possibly make one by dropping the 916 to 996 single injector eprom mods over a 916 p8 eprom, but it'd be a guess at best.

If you manages to find a FIM/ultimap 916 P8 eprom it might be possible to zone it to get something acceptable.

Jocke.....

[brad black]

Originally Posted by vij

If you manages to find a FIM/ultimap 916 P8 eprom it might be possible to zone it to get something acceptable.

Jocke.....

i think that's a um061.

[saludos]

Ok friends,

Some things became me clear!!

I will be going on with my project. At first I will be using the ST4S loom and 5.9 ECU. This might be surprising, but there are a couple of reasons:

I do have these parts, don't need to buy anything
I can run on a single pick-up system and don't need exotic parts
the 5.9 is still on almost all Ducati's, so management shouldn't break down
I can have different set-up's via the ecu conversion, which is available at Kaemna etc.

By the way, I'm quiet surprised that there are so many people going on with projects, for longer periods of time....don't you want to ride??? ;-)

I hope to do an easy and straight-forward conversion, if I start, I will make a post on this forum.

Cheers to all!!

[Henrik]

Originally Posted by saludos

don't you want to ride???

Where I live We have loong winters, then we use the summer to test the modifications done and plan for the next garage season.

Brgds
Henrik

[marvin]

Originally Posted by saludos

Ok friends,




By the way, I'm quiet surprised that there are so many people going on with projects, for longer periods of time....don't you want to ride??? ;-)



Cheers to all!!

Some of us have other things to do like "work"! And we have other bikes that we can ride.