EFI Test Engine UPDATE 12/01/08
Turbo Mini Forums

ive not looked very deeply into the whole 2 and 3 sharing the same port stuff ,other than the obvious robbing theories ,but i wondered if it may be usefull for you to know about the system where one puts a thermocouple ring under the spark plug of each cylinder ,and from the temp diff deduce cylinder conditions distribution etc ,with a shared port this seems the only way to do it cheaply ,and may give an insight into the reality of ,is the second firing cylinder being robbed of fuel and should the timing be diff etc .
just a thought , i dont know how much a iron head would affect the temp of the seat of the plug irrespective of cyl temp ,and so mask the data , i suppose one could move a single ring from plug to plug and see if there was a diff to save money on buying 4 .
regards robert.

Medusa + injection = too much torque for the dyno ..https://youtu.be/qg5o0_tJxYM

Run gas temp probes in the manifold branches as close to the head as possible. This proven method is widely used by oems when setting new engines up on dyno's. As mentioned earlier with the cam and carb combination I was running the gas temps out of 2+3 were a long way off what 1 + 4 were running, adding spark advance to 2+3 to warm them up did clean the emmisions up and increase torque. At the end of the day you will get fast resolution readings from the gas temps and be able to tune in the advance quickly, whereas spark plug seat temps will not be instant and would probably be affected by soak etc, not good for calibration of ign timing.

I have 3 probes on the shelf not doing anything if you want to "borrow" them?

John

If Carling made Mini engines
it would probably be like this one!

i think the point john was to try to get over the prob of a probe in the centre port reading 2 and 3 and not letting one know if those 2 cyl were different .. i agree on the heat soak prob , reading the turbine housing temp on a v8 i found a 3 to 4 sec delay in temp increase ,but on a steady state load on a good eddy current dyno that should be ok .i was more concerned with the whole head getting to a temp where the diff between 2 cyls would just not show much ,only thing to do is give it a try ,specially since peter has done his usual research memory machine brain wopr impression ( computer from war games)

Medusa + injection = too much torque for the dyno ..https://youtu.be/qg5o0_tJxYM

You have completely lost me on the last two posts, am I showing my age or lack of age?! - but you're more than welcome to use the temp probes I have if of use.

John

If Carling made Mini engines
it would probably be like this one!

what about bonking your sisters pet lobster ?

Medusa + injection = too much torque for the dyno ..https://youtu.be/qg5o0_tJxYM

I have a megasquirt kit for my 8 port, so for me this is a really interesting thread (apart from the bit about lobsters and incest :) )

I have so much to learn :cool:

after the lobster pete i really think you should draw the line at ally bananas , a nasty skin condition and itching can be the only out come ...

Medusa + injection = too much torque for the dyno ..https://youtu.be/qg5o0_tJxYM

oh - right!

I get them from breakers yards...

Edited by TurboDave16V on 10th Aug, 2006.

Medusa + injection = too much torque for the dyno ..https://youtu.be/qg5o0_tJxYM

Latest News,

Engine is in car and running.

Started straight away after getting some oil pressure.

Only problem is too much oil pressure. Was 90 psi at idle with a new spring! Put the old spring in and it only dropped to 80psi.

I wasn't worried about it but just as I put the car back in the barn, it developed a massive oil leak from the clutch case - shit.

I'm hoping its blowing along the primary gear and dropping the pressure more will stop it, otherwise it's a backbreaking job of changing the crank seal.


We put the Cooper inerior in this afternoon, looks great.

That's my chief mechanic, the real "Axel" at work.

It's took longer than expected because the car needed more welding than I thought. In the end it needed a new boot floor, rear valance, inner sills and door steps plus patches on the front inner wings. Solid as a rock now.

The other big problem is the electrics. Some of it works some of the time. No indicators, but the hazards work. No rear lights or brake lights but the reversing lights did work, now they dont! No dash lights but the gauges work. Tacho reads about double the actual revs.

It was standing for a year or so before I got it without the fuse box cover - so I'm starting with a new fuse box and see how we go from there.

Edited by Paul S on 28th Aug, 2006.

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."

Hi,
You'll have a MPi rev counter in there then
Unless it's something to do with your other wonky wiring defects!
Cheers,
Gavin :)

VEMs Authorised Installer / Re-seller. K head kits now available!

WB/EGT gauges. Click here for customers write-up

Visit www.doyouneedabrain.co.uk

My Mini build diary

Bat,

Thanks for that clue to the rev-counter misbehaving.

On the 3 clock panel I got out of my lads 30, the rev-counter case was damaged so I bought another off ebay.

I'll rip the innards out of the old one.

Goodness knows whats going on with the electrics. I've just ordered a decent multimeter so I can attack it at the weekend.

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."

Hi,
I think you maybe able connect the rev counter straight to one of the coil negatives on your coil pack
Cheers,
Gavin :)

VEMs Authorised Installer / Re-seller. K head kits now available!

WB/EGT gauges. Click here for customers write-up

Visit www.doyouneedabrain.co.uk

My Mini build diary

Too late, I've changed it already.

I'm not using the EDIS yet. At least I've got a solution if the tacho reads half the engine speed once the MS is fitted. LOL.

Spent last Saturday sorting the electrics. The new fuse box sorted most problems. There were also a few loose connections plus a rotten indicator base.

If it wasn't for the massive oil leak from the transfer case we would be going for an MOT tomorrow.

Edited by Paul S on 6th Sep, 2006.

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."

Fitted the MSII this weekend.

Just using ignition with EDIS to start with. Bill Shurvington has built the MSII so that it can be quickly converted to MS2/extra/siamesed code/direct coil control later.



Made up a relay board with a fuse block. Main relay and fuel pump relay. Fuses for incoming, EDIS, MS, injectors and fuel pump. The EDIS unit is fitted underneath the realy board.



Got it running without a problem. Checked that the EDIS was firing on its own at 10 degrees. Then checked which coil was driving which cylinders by running the engine on the distributor. Checked that the laptop was talking to the MS. Then connected up the plug leads and it started straight away.

After all my double checking, I still needed to connect 1&4 plugs to the 2&3 coil. I think that the diagrams are incorrect, particularly the coild connections. I think the diagram is looking at the plug rather than the coil connection.



It ran better once I told it that it was not a V8 and upped the idle advance.

I haven't driven it yet because it's pissing down at the moment.

Next job is to wire in all the sensors for the EFI.

Edited by Paul S on 4th Mar, 2007.

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."

Nice! looks to run a bit lean doesn't it? AFR almost 17.

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."

he he okay:) was not trying to pick on you:)

well done axel (and the real axel) very exciting stuff bet you cant wait to get it timed up and stonking along .!

Medusa + injection = too much torque for the dyno ..https://youtu.be/qg5o0_tJxYM

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."

Good work.

So what are the differneces between a normal MS2 config and the one Bill built for you then??

Think your right about the rain thing .... Mini's always wait till the worst possible time to die and laptop in the rain doesn't sound like fun..

Every day is a school day ...........

How fast and how expensive ...... the same question...

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."

Ok, understand all that. I was wondering if Bill had come up with a universal do all modification .... seems he is mortal after all .... LOL

Every day is a school day ...........

How fast and how expensive ...... the same question...

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."