Jim Comstock fuel injection for sale

baz · Monday at 4:12 PM

looks interesting

MichaelB · Monday at 6:28 PM

Would be, if I could see anything.

baz · Monday at 10:35 PM

MichaelB said:
Would be, if I could see anything.

dobba99 · 2026-08-18T00:59:05-0600

I'd be interested but i don't do facebook and not at $1000, maybe £400 ish and then there is the knobache of trying to pack all that gubbins around the bike....

Fast Eddie · 2026-08-18T01:19:46-0600

dobba99 said:
I'd be interested but i don't do facebook and not at $1000, maybe £400 ish and then there is the knobache of trying to pack all that gubbins around the bike....

His listed price isn’t $1,000… it’s $1,000,000…!

But he’s only done that coz you have to put a price on due to their advertising rules etc. He does say that he doesn’t know what it’s worth and that ‘best offers considered’.

I suspect that not many people will be that interested due to lacking the skills to make it all work. So if you’ve got a mate with FB, it might be worth a punt.

dobba99 · 2026-08-18T01:24:46-0600

Defo not at 1 mil! I have enough projects etc to last me two lifetimes, let alone the one i have left.....

mdt-son · 2026-08-18T08:00:38-0600

Fast Eddie said:
I suspect that not many people will be that interested due to lacking the skills to make it all work. So if you’ve got a mate with FB, it might be worth a punt.

It will be a costly project if the ECU, speed sensor ring, crankshaft angle sensor, and tuning notes are missing. I think it will need lots of dyno time to make this system work flawlessly - another cost issue.

- Knut

Schwany · 2026-08-18T08:27:46-0600

From one guy's box of parts that never worked right sitting on the shelf to another guy's box of parts on the shelf. Not worth the time it would take to make it work. Doesn't matter who cobbled it together originally. It is incomplete without user friendly ECU software and some installation notes. FCRs work as good as fuel injection on an old twin and are bolt-on and go if one has a reasonable amount of tuning skill.

MichaelB · 2026-08-18T14:25:34-0600

Need to have Comstock to come with it for any value.
Points given for trying to sell it.

acotrel · 2026-08-18T19:10:26-0600

If it had all the electronics, it would be interesting to play with in an attempt to find performance limits of a Commando motor, - however its obvious lack of originality would devalue a road bike, and make it ineligible for most classic road racing. It would probably help a Commando to be as least as fast when using petrol, as it can be when using methanol. Petrol has a higher calorific value than methanol, but lower latent heat of vaporisation. The high heat of vaporisation of methanol makes jetting easier - it hides-up the errors, but volume for volume provides less power. With petrol as fuel, the energy is there. but more difficult to access.

robs ss · 2026-08-18T20:20:01-0600

acotrel said:
If it had all the electronics, it would be interesting to play with in an attempt to find performance limits of a Commando motor,

I doubt that carburation (or whatever fuel mixing) is the performance limiting factor of Norton's 360 twin

NORTSTER1974 · 2026-08-18T21:43:43-0600

robs ss said:
I doubt that carburation (or whatever fuel mixing) is the performance limiting factor of Norton's 360 twin

Alan could be right. Perhaps I will buy that unit and hook it up to my lawn tractor. If I do that then all I need to do is hook up the Drouin. Then I could take it out to the salt flats?

Jim Comstock fuel injection for sale

baz

MichaelB

"Sons of Arthritus"

baz

Attachments

dobba99

Fast Eddie

dobba99

mdt-son

Schwany

MichaelB

"Sons of Arthritus"

acotrel

robs ss

NORTSTER1974

Similar threads