Magneti Marelli Parts?

[h4x0r7000]

Howdy guys,

Ive got a megane coupe that im looking to install a racing dash and ecu. I know its not a clio and on the wrong forum but noticed alot of you guys have installed some in clios.

I got the dash, the ecu and both connectors but no wiring. was tempted to chop up the original wiring but before i do, see if i can get hold of a wiring loom for marelli dash+ecu.

the question is, any of you know sites for the parts etc? any experience when you fitted them?

Ive checked ebay and LOADS of racing forums but nothing.

Cheers

 

[Icarus]

What exactly are you trying to fit i.e. what ECU and Dash. Is this ex Cup Racer stuff? If so from which revision/version of Cup Racer?

We can supply pretty much every MM specific sensor, connector, dongle/software etc. but if you have Cup Racer stuff then thats unlikely to be of much help as they are completely sealed boxes.

 

[h4x0r7000]

hi, both parts are from an ex megane coupe racer. ecu was remapped as the engine was just a standard f7r without TBs.

dashboard no. mt940/bm

dont see a code on the ecu but here's an image:

 

[theduck]

Matt is the man for this, sure he'll be able to sort you it.

 

[Icarus]

It's an MF4 ECU, quite classic now! Data sheet for it here: http://www.magneti-marelli.com/uplo...14048400 MF4 data sheet v4_unlocked_1page.pdf

Do you know what developer it's on i.e. has it been coverted to an open ECU by MM/Compsys or is it still locked to RST.

We should be able to rustle up the bits to get comms with it and IIRC I think it's a Vision 3 only ECU, I'll check.

The one issue you may have is that I'm pretty sure MF4 supports only a single anomaly per crank rotation as such you may need to stick a 36-1 or 60-2 trigger wheel on it as due to the way if processes timing data, if you have a 4R type large tooth before the gap trigger it won't work.

Good little ECU though.

 

[Icarus]

Oh also you'll probably need a dongled version of table manager to setup that dash. Do you have it? If not we may have something old enough in a box somewhere.

 

[h4x0r7000]

LoL sorry you completely lost me xD

I havent a clue what developer its on sorry.

but glad i posted on here now

 

[h4x0r7000]

all ive got is the dash, ecu and both plugs to connect. no wiring etc

 

[Icarus]

Okay MM produced those ECU's with various versions of software on them. Some can be "spoken to" by the generic version of Vision (MM's calibration tool) specifally those which were supplied to individual customers. ECUs supplied to OEMs such as RST were locked to a version of Vision only supplied to them, usualy this was hardware locked via a dongle. You need to find out if it's an open ECU or not, if it's been remapped previously chances are it is. Check with MMCompsys to see if it's open, they'll need the number off the front of the case to check.

Pin outs for dash and ECU are available from MMCompsys so knocking a loom up is no bother. What bits of loom/plugs do you have at the moment?

Also do you want to be able to calibrate this yourself? If so you're looking at a pretty hefty investment for the bits - like the price of a decent aftermarket ECU!

 

[h4x0r7000]

plugs is just the connection to the ecu, and the plug to go into the dash.

im not that interested in calibrating it yet.

 

[Icarus]

Well you sort of need to know if you're going to need to (likely!) before you go any further down the road of commissioning it else you may well spend a s**t load of money getting it in only to find it won't run your motor! Do the homework first to make sure.

A loom for it will be pretty simple as comms with the dash is CAN so youll only need 4 wires for that as you'll have a spare digi input on the MF4 which can be used for wheelspeed. Aside from that it's just the F7 sensors and actuators.

 

[h4x0r7000]

ok cool, how much are the sensors and actuators? also would it be best me taking the wiring loom out and taking that apart or get a loom already set for the ecu and dash?

 

[MicKPM]

I still think you should let me have it all Gaz

 

[Icarus]

ok cool, how much are the sensors and actuators? also would it be best me taking the wiring loom out and taking that apart or get a loom already set for the ecu and dash?

Have you not got sensors and actuators already? i.e. injectors, coils, CTS, ATS, TPS, crank sensor etc. etc.

There is no loom already made for that ECU unless you can track one down from an old Megane racer. Anything produced to a decent spec will be £650 + engine loom only as there is two to three hours in doing those mil connectors properly alone.

 

[h4x0r7000]

I still think you should let me have it all Gaz

you know it aint happening dude

 

[h4x0r7000]

Have you not got sensors and actuators already? i.e. injectors, coils, CTS, ATS, TPS, crank sensor etc. etc.

There is no loom already made for that ECU unless you can track one down from an old Megane racer. Anything produced to a decent spec will be £650 + engine loom only as there is two to three hours in doing those mil connectors properly alone.

ive pretty much got a running f7r. wel it was until i stripped the car

 

[Fred@BTM]

why not go for a more modern ecu and dash?

 

[h4x0r7000]

because i got it at a decent price 2 years ago.

 

[Icarus]

because i got it at a decent price 2 years ago.

I think you're underestimating the cost to get it all working though. A copy of vision is £600, cable and comms box is £550, if you need a copy of table manager with dongle for the dash then that's £480 for the club version........... just the bits to get comms with it is more than a Dash 2 display and an EC1 ECU!

If you're happy having no way to talk to the ECU then that makes things slightly different but that would be a massive PITA at some point.

The problem with using pro-motorsport electronics is that regardless of their age it will always, always cost you pro-motorsport money to make them work!

Don't get me wrong I'm happy to flog you all the bits you need to get it running but I would carefully consider what you intend to do with it and if there are any better solutions out there for you.

 

[h4x0r7000]

I still want to go ahead and fit the dash and ecu. if its become an even longer long term project, then thats what it will be. Its not my main car so i got plenty of time to do it.

I want the car to be a road legal track car. that way i dont have to somehow get a trailer etc.

Your right about needing to talk to the ECU, because i could be tempted to upgrade the engine with TBs and ecu will need remapping.

whats my options?

 

[Fred@BTM]

sell it all and get a more modern setup = easy, cheaper and better

 

[MicKPM]

Another "Issue" I foresee, without being able to access the ECM Gaz, is you don't know the actual spec of the engine the ECU was driving. Okay, it was most likely an ex-Cup car so fairly standard on the internals and rev limits but without the ability to access the map on it you've no idea how a standard production motor is going last or react to that map.