Mini Mad
Posted 28 August 2017 - 07:47 PM
Hi,
Just toying with the idea of changing the ECU. For a couple of reasons but mainly because I want an ECU that is a bit more open and something I can tinker with.
Looking around the choices are either horrifically expensive or ECUs that look like 5 people have bought them.
What are the choices? What would you recommend? I'm not looking to replace it to try to get more power or anything silly like that.
One Carb Or Two?
Posted 28 August 2017 - 08:09 PM
If you're not going for more power, why would you want to change it..?
Mini Mad
Posted 28 August 2017 - 08:32 PM
I'm using a Emerald K6 on my non A-series mini and really get on well with it
One Carb Or Two?
Posted 28 August 2017 - 08:35 PM
On The Road
Posted 29 August 2017 - 09:15 AM
The Turbo Mini's forum might be a good place for you to look. Quite a few of them run Megasquirt ECU's and someone on there has developed code specifically to run the MPi setup.
Mini Mad
Posted 29 August 2017 - 10:24 AM
If you're not going for more power, why would you want to change it..?
The MEMS unit is essentially closed without specialist equipment. I don't like that idea.
Mini Mad
Posted 29 August 2017 - 10:33 AM
I'm using a Emerald K6 on my non A-series mini and really get on well with it
Is it compatible with A-series'?
Crazy About Mini's
Posted 29 August 2017 - 01:53 PM
If you're not going for more power, why would you want to change it..?
The MEMS unit is essentially closed without specialist equipment. I don't like that idea.
It also depends on what power you're trying to make. It has been known to run applications up to around 95-100bhp. The issue you'll always face with the A series dual port inlet is the siamese injector firing to make it work effectively.
Crazy About Mini's
Posted 29 August 2017 - 02:05 PM
Having an ecu that can be bespoke mapped to your car is a no brainer imo, even if its lightly modded, to get the most from it .
I run the SC setup, as it was a plug and play loom for my factory MPi.
Up Into Fourth
Posted 29 August 2017 - 02:22 PM
this is trickier than it first appears,
there is nothing of the shelf plug and play AFAIK, because the MPI does some weird stuff with injector timing to try to make the fuel go where it should despite being a 5 port configuration.
there are people on the Turbomini's forum running Megasquirt setups, but there would be an amount of adaptation required, to 1) adapt the current wiring to the megasquirt, and 2) to convert to 2 wideband lambda sensors so ithe inner and outer cylinders can be measured inependantly.
the alternative is to "chuck it all in the bin" and go to a normal wet manifold setup like the SC setup, and whil your doing that you may as go the extra mile and go for the SC 7 port head + injection kit.
Edited by mini13, 29 August 2017 - 02:23 PM.
Mini Mad
Posted 29 August 2017 - 03:02 PM
I'm well aware of the issues that the siamese ports present with regards to fuelling. Changing the ECU on the MPIs has been done before and I'm sure there are maps out there for them to at least get the engine turning. It's a long road of tuning to get it perfect, yes.
One Carb Or Two?
Posted 29 August 2017 - 03:27 PM
I think this statement:
this is trickier than it first appears,
is very accurate. I am not sure that many people have changed ECUs on an MPi while maintaining the Rover manifold.
Some people have had good luck with the SC system right off and others have required some "tinkering."
It all depends on how much data you really wish to have and what the capability of the system is to allow adaptations to the data. Monitoring and logging dual widebands to really know what is happening requires some work.
SC has made some announcement about a new system for the MPi or a system based on the MPi. It might be worth waiting to see what that system has to offer.
Terry
Edited by tmsmini, 29 August 2017 - 03:30 PM.
Mini Mad
Posted 29 August 2017 - 03:46 PM
I think this statement:
this is trickier than it first appears,
is very accurate. I am not sure that many people have changed ECUs on an MPi while maintaining the Rover manifold.
Some people have had good luck with the SC system right off and others have required some "tinkering."
It all depends on how much data you really wish to have and what the capability of the system is to allow adaptations to the data. Monitoring and logging dual widebands to really know what is happening requires some work.
SC has made some announcement about a new system for the MPi or a system based on the MPi. It might be worth waiting to see what that system has to offer.
Terry
Do you have a link to that announcement?
One Carb Or Two?
Posted 29 August 2017 - 09:09 PM
I think it was on Facebook and that is one of the reasons I dislike FB, it is not easy to go back to a post.
It may have been thisfrom MITP:
The newly released S-Pack Supercharged 5 Port EFI engine
This post was in June:
I think it's safe to say that the next revolutionary Specialist Components 'Kit'/ 'Crate Engine' is going to be MPI based......... something new is coming towards the end of the year!
Up Into Fourth
Posted 30 August 2017 - 08:15 AM
Pretty sure they are refering to the supercharger kit will fit the MPI engine, I would expect that they will include their manifold and TB which moves the invectors away from the head.
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