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Home > A-Series EFI / Injection > My 1998 SPI AUTO Gear Mini cooper MS 2 Project

priyangagw

6 Posts
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My dear friends. Can you all guide me to do this successfully. I am going to change my distributor-less
spi engine to an MPI engine with auto gear. I bought a MS 2 assembled kit and assembled to basic level. Now to run fully sequential injection I bought a fully completed manifold assy and the air cleaner .
Pls advice me to do following
.

Need to fix a original cam sensor. ( Need to Make the bore on the engine block???)
Can I Use original Map sensor on the MPI manifold?????
How can I give trigger signal to my original Wasted spark coil pack???
Do I need injector 4 lines or can I manage with Two lines. In my MS 2 I have only two injectors outputs only,
Please explain me some one,


Paul S

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Formerly Axel

Podland

Have a read of this build guide:

http://www.turbominis.co.uk/forums/index.php?p=vt&tid=408438

Saul Bellow - "A great deal of intelligence can be invested in ignorance when the need for illusion is deep."
Stephen Hawking - "The greatest enemy of knowledge is not ignorance, it is the illusion of knowledge."


Paul S

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Formerly Axel

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Also, you may have one of those hybrid Spi/Mpi engines. SPi engines were not fitted with coil packs in the UK, but I vaguely remember someone saying that there were some exceptions.

Where in the world are you?

Saul Bellow - "A great deal of intelligence can be invested in ignorance when the need for illusion is deep."
Stephen Hawking - "The greatest enemy of knowledge is not ignorance, it is the illusion of knowledge."


Sprocket

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Preston On The Brook

The 'MPi' auto was only available in Japan and actually used the SPi injection manifold specifically for the auto box kickdown mechanism.

If you intend using the MPi injection manifold with an auto box, you'll have to resolve the kickdown mechanism problem it creates

Edited by Sprocket on 27th May, 2014.

On 26th Oct, 2004 TurboDave16v said:
Is it A-Series only? I think it should be...
So when some joey comes on here about how his 16v turbo vauxhall is great compared to ours, he can be given the 'bird'...


On 26th Oct, 2004 Tom Fenton said:
Yep I agree with TD........


Paul S

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Formerly Axel

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So there may be a MPi cam fitted. Check lobe behind blanking plate.

The other issue is that the MPi cam sensor is a VR sensor. You'll need some extra electronics to use that with the MS2.

Saul Bellow - "A great deal of intelligence can be invested in ignorance when the need for illusion is deep."
Stephen Hawking - "The greatest enemy of knowledge is not ignorance, it is the illusion of knowledge."


Sprocket

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Preston On The Brook

The 'MPi' auto block doesn't have the cam sensor hole drilled, it's as cast.

Not sure introducing all these extra complexities will yeild any worthwhile benefit over the SPi manifold. Seems like a lot of work for little gain. I remain skeptical. By all means install the MS2/3, you will certainly see some improvements there and open up cam choice.

Edited by Sprocket on 27th May, 2014.

On 26th Oct, 2004 TurboDave16v said:
Is it A-Series only? I think it should be...
So when some joey comes on here about how his 16v turbo vauxhall is great compared to ours, he can be given the 'bird'...


On 26th Oct, 2004 Tom Fenton said:
Yep I agree with TD........


Paul S

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On 27th May, 2014 Sprocket said:

Not sure introducing all these extra complexities will yeild any worthwhile benefit over the SPi manifold. Seems like a lot of work for little gain. I remain skeptical. By all means install the MS2/3, you will certainly see some improvements there and open up cam choice.


In this case, I would agree. The starting point of a SPi auto creates a lot of hurdles to overcome.

Fitting the MS3 and MPi manifold to my lads 998 was a breeze, but then I've done that sort of thing before and I'm biased *smiley*

Saul Bellow - "A great deal of intelligence can be invested in ignorance when the need for illusion is deep."
Stephen Hawking - "The greatest enemy of knowledge is not ignorance, it is the illusion of knowledge."


priyanga

5 Posts
Member #: 10833
Junior Member

Dear Paul. I am in srilanka, Recently visited UK Birmingham.crazy about cars. I really want to make this happen. Jean told me he can send the VR conditioning circuit for cam sensor, I am going to drill the cast , exact point of the engine block , I am doubt , I got a same MPI cam in my car. then i dont need a cam replacement.I got down this car from japan, I am really curious about to know about fixing wideband 02 sensor too, cause jean told me I might need 2 or three wide band o2 sensors, can you explain why i need many of them>? why I cannot use existing o2 sensor (Is it a narrow band one?)
to run fully sequensial injection do i need to order the injector drive board from jean too, please explain me,


priyanga

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Junior Member

oops. sorry I saw the link lately. I will go through them and comeback with some photographs


Paul S

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You will need 2 widebands to understand the fuel distribution between inner and outer cylinders and make adjustments to the injector timing.

You will be able to use the 2 standard MS2 injector drivers unless you are going to extensively modify the engine.

Did you read the "MS Build Guide" ?? If so then all these questions are answered in that. If you have read it and have not understood the issues with port injection, then I suggest you do some more reading.

Saul Bellow - "A great deal of intelligence can be invested in ignorance when the need for illusion is deep."
Stephen Hawking - "The greatest enemy of knowledge is not ignorance, it is the illusion of knowledge."


priyanga

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Junior Member

according to your advice I might need to order injector drive board and cam sensor input modification board from jean? what about o2 sensors? since i am in srilanka i can find o2 sensors from very modern Japanese toyota or nissans made in 2004 upwors, Can you give a clue to find o2 sensors from those cars?? Are they really wideband??


Paul S

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No, you don't need the quad driver board from Jean. You can drive the 2 MPi injectors and the wasted spark coil without.

O2 sensors need controllers and gauges. Something like this:

http://www.aemelectronics.com/products/wid...-uego-afr-gauge

Saul Bellow - "A great deal of intelligence can be invested in ignorance when the need for illusion is deep."
Stephen Hawking - "The greatest enemy of knowledge is not ignorance, it is the illusion of knowledge."


priyanga

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Junior Member

So I will fix the cam ASAS. huraah. If I dont need the quad driver board , how can i run fully sequential injection. Can it be done only by two injectors??? please correct me if I am wrong. since i got only two injector outputs how its serve 4 cylinders. In original MEMS MPI ecu I saw 2 Injector out puts given to one injector and other two output given to the other injecter. that means origial rover ECU got 4 injector outputs while i am having two outputs only on my MS2.???
And I am little bit fancy of having to put 4 wire cops instead of having wasted spark coil pack. because I can buy used cops ( Japanese ) cops in my country. can you tell me can I put 4 wire 4 cops to my mini without having jeans support??


jbelanger

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Montreal, Canada

This is not an easy project but it is something that can be done if you put the effort in understanding what is needed. You need to start reading and be ready to read a lot.

You obviously have not read or understood even the simple basic document mentioned above. If you had, you would not be asking the questions you are asking. And continuing to ask basic questions here (or through email to me) will get you nowhere and likely won't get you the answers you want or expect either.

So start reading all the information available here on the forum. You will need to spend many hours doing so before you start begin comfortable with the subject and have a better idea of what is needed.

You also need to read more on the Megasquirt because the documentation does tell you how you can control 4-wire COPs. Using the MS on a Mini doesn't change that. There is also information on wideband O2 sensors and controllers (hint: the sensors have 5 or 6 wires and need a separate controller not found on an OEM setup).

http://www.jbperf.com/


Rod S

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Rural Suffolk

On 28th May, 2014 priyanga said:
So I will fix the cam ASAS. huraah. If I dont need the quad driver board , how can i run fully sequential injection. Can it be done only by two injectors??? please correct me if I am wrong. since i got only two injector outputs how its serve 4 cylinders. In original MEMS MPI ecu I saw 2 Injector out puts given to one injector and other two output given to the other injecter. that means origial rover ECU got 4 injector outputs while i am having two outputs only on my MS2.???
And I am little bit fancy of having to put 4 wire cops instead of having wasted spark coil pack. because I can buy used cops ( Japanese ) cops in my country. can you tell me can I put 4 wire 4 cops to my mini without having jeans support??

As already said by Paul, Jean and Colin (Sprocket) this isn't easy with the rather strange engine you have but it is possible if you really want to do it.

To answer your latest questions in detail....

You only need two injector drivers with the MS2-E siamese code because it fires the two injectors twice at defined crank angles so replicating the normal four injectors you would expect on a normal 8 valve fully sequential engine.
Rover doubled the four outputs from their MEMS to two injectors because they had a 4 channel MEMS from their other ranges but had to work with two injectors. The MS2-E siamese code does the same with two drivers except it does it better (well IMO anyway).

You only need Jean's 4 channel driver board if you are in the really serious territory of staged injection (usually only with a turbo) and then you need some modifications to the MS2 daughterboard as well.

The standard MS2 build is fine for fully sequential siamese code.

For any form of sequential you need the cam (phase) input.

If you have an MPI cam and drill the rather strange block to take it, you will need some additional input circuitry, as already mentioned. We can explain more later once you accept the basic problems.

The MS2 will drive a wasted spark coilpack but you will have to modify it to include a second IGBT (ignitor) or use a logic driven coilpack. Again, more details later.
If you want COP, it gets more complicated, again, depending if they are logic level of IGBT driven.
All still doeable but you need to understand the basics first.

Another thing you need to consider as this seems to be a rather strange engine, is the fuel pump inside the tank an MPI one or an SPI one ?
The SPI one won't be any good for normal injectors as normal injector require 3 bar, the SPI only ran at 1bar.

And to answer one of your earlier questions you absolutely need two widebands (and associated controllers) to setup the fuelling if you go the way of siamese code port injection.

Edited by Rod S on 28th May, 2014.

Schrödinger's cat - so which one am I ???


dan187

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774 Posts
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Wootton Bassett

as above, also try these...

http://apavlov.pagesperso-orange.fr/mini/e...management.html

http://jbperf.com/sequential/Fuel_Injectin...e_A_Series.html

http://www.starchak.ca/efi/siamese.htm

1275 N/A Sprite, 998 T2 Turbo Mayfair
1275 EFi Turbo


jbelanger

1267 Posts
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Montreal, Canada

Interesting. I had never seen that first link.

http://www.jbperf.com/


Sprocket

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Preston On The Brook

The 1998 automatic engines were only available in the japanese market. The block was a modified 'MPi' block and head, but the induction system was the SPi injection manifold and air cleaner. This allowed the automatic gearbox kickdown linkage to be connected with an already available mechanism.

These models were nearly always fitted with air conditioning, which then used the side mount rad and the condenser behind the grille on the opposite inner wing. The AC compressor was mounted directly below the alternator on the already available mounting bracket and the drive belt was then simply a longer version, using the very same tensioner mechanism. The flywheel is the same 36-4 pattern of the MPi or Rover K series engines and used the 'wasted spark' distributorless ignition system.

The engine block itself did not have a drilling for the oil temp sensor or cam sensor, or the oil filter, and the oil galleries were different to feed the auto box with oil as is the case with any other A series auto engine block.

Seeing as these engines were built alongside the rest of the production, i'd suggest that the cam will be the MPi type cam, but you never know with Rover, untill you take it appart.

I actually bought a short engine from one of these, delivery mileage from Ebay user snnoker (Graham from the old Minis Bristol Minis) just for the crank. I scrapped the block as it was just far to much work to modify it for use with a manual gearbox. seemed a bit of a shame at the time.

Suggestions for a work around for the kickdown linkage?......

Here are a few pictures of what a Jap spec 1998 auto engine bay looks like.

http://www.alibaba.com/product-detail/1998..._109236874.html

An ebay piccie of the engine



Edited by Sprocket on 28th May, 2014.

On 26th Oct, 2004 TurboDave16v said:
Is it A-Series only? I think it should be...
So when some joey comes on here about how his 16v turbo vauxhall is great compared to ours, he can be given the 'bird'...


On 26th Oct, 2004 Tom Fenton said:
Yep I agree with TD........


Paul S

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8604 Posts
Member #: 573
Formerly Axel

Podland

On 28th May, 2014 jbelanger said:
Interesting. I had never seen that first link.


Me neither. I'm guessing that's from "alpa":

http://www.turbominis.co.uk/forums/index.php?p=vt&tid=364031

Interesting write up although has got the charge stealing issue incorrect.

EDIT: Missed the links that take you straight to this forum and alpas threads - Doh.

Edited by Paul S on 29th May, 2014.

Saul Bellow - "A great deal of intelligence can be invested in ignorance when the need for illusion is deep."
Stephen Hawking - "The greatest enemy of knowledge is not ignorance, it is the illusion of knowledge."


Paul S

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8604 Posts
Member #: 573
Formerly Axel

Podland


On 28th May, 2014 Sprocket said:


Suggestions for a work around for the kickdown linkage?......



How about:

Adapting the linkage to the free end of the throttle body, or
Doubling up the throttle cable, or
Vacuum diaphragm actuator from a R5GTT?

Do-able with a bit of ingenuity and fabrication, not impossible.

Saul Bellow - "A great deal of intelligence can be invested in ignorance when the need for illusion is deep."
Stephen Hawking - "The greatest enemy of knowledge is not ignorance, it is the illusion of knowledge."


priyangagw

6 Posts
Member #: 10848
Junior Member

Dear Friends. I really did understand up to some extend and decided to buy an complete engine to keep separately and do my trials, My only problem now is to find Wide band 02 sensors. so i need to try ebay to get them down. I will keep update the forum, its look like not easy as i thought. lets hope for the best.


priyangagw

6 Posts
Member #: 10848
Junior Member

Dear Friends

Please advice me since i am about to order VR board from jean. In my case should it be 5V board or 12V board,

Thanks
Priyanga


jbelanger

1267 Posts
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Post Whore

Montreal, Canada

Use the 5V version and put it inside the MS2 case.

Jean

http://www.jbperf.com/

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