rover 827

[jago]

hello all.

my name is jago i'm from didcot oxforshire, and i have a rover 827 v6, i am wanting to fit vems to her by march 08'

However i would like to use the orignal sensors only (except WB o2)
Being a honda engine, it uses 2 cam sensors for the injection and a rover v8 style ignition sensor for the ignition. no direct crank sensor (can vems support this??)

I am currently running the ecu at it's limmit (ign timming advanced to max, fueling near max (on external pots) and i have 180hp off nitrous and 230 on (165hp standard).

The ecu is fantastic for a 17yr old unit, however it's just not quite flexible enough for my needs.

I use the car everyday for work and is my toy when not working.

[jago]

oh and while i remember, could i use a vems unit to data log the o'e mapping to help create a map for the car???

[rob@vems.co.uk]

Jago,

Honda distributors tend to have a 24 tooth trigger for the engine speed and then either a 4 (possibly 6 in this car) or 1 tooth for the cam sync, which we can work from happily.  I'm not sure what the Rover ignition sensor is TBH, but if we've got an engine speed sensor and a cam sync we can run VEMS from that.  Any information you have on this will be welcome.

There is a way of logging the ignition using VEMS:
http://www.vems.hu/wiki/index.php?page=OnlineCourse%2FAlienIgnitionLogging
But its not something I've ever done, the main problem (apart from understanding the instructions and finding someone who's actually used this tool to help), is that its not a good idea to share the triggers across two ECUs.

[jago]

hello,

yes my car has the 24 tooth and a 1 tooth wheels (on the cam wheel) there is a 6 tooth wheel inside the distributor for tdc of each piston (rover manual) i have the waveforms of each sensor and they are all nice and clean from the ecu socket.

i was thinking of logging the injection setting to get a rough idea of the priming and cold running settings for the engine really, as on my old v8 (megasquirt) and tony's v8 that is the old bug i had.

[rob@vems.co.uk]

The 24+1 is straightforward, it should work with my Nissan Skyline setup.  And that will be all you need to run fuel and ignition.

Scoping the pulse widths should help you get the fuelling closer.

[jago]

thats fantastic, so would i only need the ecu without any odd setting up to use both inputs?

[rob@vems.co.uk]

Yes, it would need two VR inputs which is a factory option

Next would also be the issue of ignition, I'd hope that you'd be dumping the single distributor coil and trying something like wasted spark coil packs or coil on plugs.

[jago]

my plan was to use the std set-up for the time being (single coil pack + dissy) and then move to somthing more advanced once running,

[rob@vems.co.uk]

Fair enough, I was planning the same on my car (check the S14 Sprint Car thread in the Projects section) but found that the coil pack was much easier to get working than trying to figure out where the rotor arm was in relation to the timing that the ECU had - as for wiring, its two more wires than a single coil to get a 3 coil wasted spark unit running.  I'm not even trying to sell you anything here, as I head off down to the scrappies for coils, I'd be looking for a Ford EDIS off a V6 or something along those lines.

[jago]

right so the big question.... you say i only need the ecu to get her started, so what is the lead time for an ecu with the connectors for patching into the oe loom (or just the connectors with some wire on so i can remove the oe connectors and make a adapter cable. so i know how long i have to save up.....

[rob@vems.co.uk]

Usually a week to ten days.

Contact me on rob@vems.co.uk please.