Old Daimler V8 Mods

[dave de roxby]

Hi Folks!

Does anybody know if fuel injection has ever been applied to the old Daimler V8 engines?

I fancy having a go with my old Mk2 250V8 (manual gearbox). Got a complete Rover V8 hot-wire system to play with. Just wondered if anyone has done this before? Can't seem to find anything on the net.

Cheers,

Dave

[350Matt]

Hello

I've always been a fan of this little V8 so ripping off the poorly designed inlet and carbs is a excellent start, The rover ECU will be looking for a speed signal from the coil an a throttle pot so the trickiest part will be to fabricate a new inlet system or replace the carbs with a pair of throttle body's of a mondeo or some suchlike.

Best of luck with it and post some pictures up to generate some comment and ideas.

[dave de roxby]

350Matt said:

Hello

I've always been a fan of this little V8 so ripping off the poorly designed inlet and carbs is a excellent start, The rover ECU will be looking for a speed signal from the coil an a throttle pot so the trickiest part will be to fabricate a new inlet system or replace the carbs with a pair of throttle body's of a mondeo or some suchlike.

Best of luck with it and post some pictures up to generate some comment and ideas.

Thanks Matt. I guess I'm a little late, doing this to a fifty year old engine! But I'm a retired engineer with a few dreams to get out of my system. If I'm going to do this, I want to go down the multi-point injector route, rather than a couple of throttle bodies on the existing manifold.

It seems in vogue to spray the fuel directly onto the back of the inlet valves? Not sure how this gives atomisation a chance but does at least equal things up between the cylinders with a sequential system. But as I've mentioned elsewhere, the Rover's manifold actually looks restricted by the positon of the injector, right in the middle of the inlet tract??

To make things easy and flexible (maybe for application to other engines later) I'm thinking about making up some individual cast injector bodies which I could use on all the cylinder inlets, then a fabricated manifold on top of that, maybe followed by an adapted version of the Rover's stacked plenum.

You are right about all the other pick-ps needed for the ECU which in itself will need some re-mapping I suppose. And I've heard from America that standard carb type camshafts don't always take well to injection. But let's not get ahead of ourselves!

(I've started threads on this in a couple of places on this site, just to get some interest, maybe not such a good idea! Suggest we all congregate here on Technical/Engines & Drivetrain and sorry for any confusion - still learning - I'm a silver surfer!)

[deetes]

Perhaps a better idea would be to go for an after market ECU, as the systems used by Rover required Air Flow Meters, where as the aftermarket systems only require a throtlle position sensor, inlet air temp sensor and manifold pressure.

Inlet wise. Bike throttle boddies????

There are plenty systems, to suite every pocket, available to chose from and they each usually have a forum related to them.

I've used a system called Megasquirt, which is at the cheaper end of the scale.
http://www.extraefi.co.uk/
The link takes to the site belonging to the guy I bought mine from.

Best of luck anyway and keep us informed of your progress.

[Steve_D]

I'm not sure you can re-map the hotwire system.
My vote also goes to MegaSquirt.
Individual throttle bodies perhaps from bikes would be easier to create a manifold for and may be easier to do in steel than trying to cast something.

Steve

[dave de roxby]

deetes said:

Perhaps a better idea would be to go for an after market ECU, as the systems used by Rover required Air Flow Meters, where as the aftermarket systems only require a throtlle position sensor, inlet air temp sensor and manifold pressure.

Inlet wise. Bike throttle boddies????

There are plenty systems, to suite every pocket, available to chose from and they each usually have a forum related to them.

I've used a system called Megasquirt, which is at the cheaper end of the scale.
http://www.extraefi.co.uk/
The link takes to the site belonging to the guy I bought mine from.

Best of luck anyway and keep us informed of your progress.

Thanks Detees, Now this is what Pistonheads is all about - never thought about bike parts! Its like most things in life - someone's been there before you! (For some reason, I'm thinking of my ex-wife - but we wont go there!!!) Well, I'll certainly be looking into this.
Cheers, Dave.

[dave de roxby]

Steve_D said:

I'm not sure you can re-map the hotwire system.
My vote also goes to MegaSquirt.
Individual throttle bodies perhaps from bikes would be easier to create a manifold for and may be easier to do in steel than trying to cast something.

Steve

Steve! Thanks for that! Yes, I'll look at MegaSquirt. I have some empathy with that!

[350Matt]

Try these guys for manifold fabrication

http://www.boggbros.co.uk/

[dave de roxby]

350Matt said:

Try these guys for manifold fabrication

http://www.boggbros.co.uk/

Thanks again Matt They look good and are within striking distance of me!