7 porter progress, Engine build Number....seven?? ....now K1200
Turbo Mini Forums

Ah, so the tables are actually summing then, I assumed that it switched from
cranking to afterstart to warmup.

I have had the after stat and warm up figures both set to past the top of the set up graphs.

In the crank, afterstart settings you'll have a cranking threshold number, after the engine exceeds this number it will then be running on the ve table (+warmup enrichments). If it fires then stops the figures in the VE table need increasing.

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1/4mile in 13.2sec @ 111 terminal on 15psi

Right, not fully knowing how MS sets up the injectors, i would say however you set it up to achieve, with the hardware you have, alternating pairs of injectors 1/4 and 2/3, firing twice per cycle with the correct calculated required fuel. Batch fire is too much for your injectors i feel.

The 490cc injectors are large enough for sequential injection, so are twice as large as they need to be on alternating and four times as large as they need to be on batch :/

Matty, the MS uses the VE table differently to VEMS, the MS VE table has a noticable shape to it

I'm running four off 490cc injectors on my 998 - no problems.

I ran them on the 1275 on the MS2/extra code two squirts per cycle. Ran OK.

I would stick with the MS settings you have and concentrate on the fuel delivery, ignition timing and other hardware.

It is easy to blame the ECU settings but it is usually something else as Matty found out.

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."

I'll get me coat

Ms does a self calc when you change between 2&4 squirts and batch and alternating,

so if you enter the 4.6 req fuel calculated from the engine size, AFR and injector size it will have a box below that has the actual req fuel it is using (2.3)

the main reason i tried it on batch was i n case i hade the injectors connected up wrong , not that it should matter that much.

as you say the injector should be easily big enough, without increasing the fueling, with the figures i have entered i would have expected to flood the engine but have not really managed to.

well I have ruled out the ignition, it should run on these settings if yours is, so that leaves fuel delivery.

Have you set the injector opening time?

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."

Edited by matty on 7th Jul, 2008.

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1/4mile in 13.2sec @ 111 terminal on 15psi

It will only use the full 4.6ms on one squirt per cycle.

I guess that it is set up for two squirts per cycle and is running at 2.3ms

4.6 works out about right.

My money is on the injector opening time not being long enough.

With big injectors on a small engine, this is highly significant. If it is set too low then no fuel is going to get through.

It is worsened again by the halving of the Req Fuel.

At idle my pulse width is 1.3ms with all four injectors firing. That's 1ms to open and 0.3ms to deliver fuel. I actually have two of the injectors staged out to give a better idle.

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."

Injector opening time is set to 1ms, as per the manual,

setings are as below.

Edited by Joe C on 8th Jul, 2008.

Edited by Paul S on 8th Jul, 2008.

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."

Ummm. Thinking out load.

Noisy pump. Fluctuating pressure. Empty tank?

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."

me neither,

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Im running my 460's at 1ms at idle, haven't seen any problems yet?

Ive got some 230cc injectors you could try but one of them appears to but not working?

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1/4mile in 13.2sec @ 111 terminal on 15psi

Matty I thougtt it was 2.4ms at idle?

and your other injectors are300 - 330cc

well, borrowed another pump and jacked around with the opening time, to no avail, managed to flood it so cleared that out of the system with a minite of about 4000 rpm of blow torch powered flight,

also have poped the manifold of and pointed it up in the air and I am getting a good cranking spray, but of cource i cant check the afterstart pattern.

I assume the opening time has no effect on the cranking pattern.

currently have leveled the ve table entrys to 100 and put the req fuel to about 3 and am flooding it, am about to bolt the manifold back drop the ve table and crank up the req fuel.

How long has the petrol been in the car?

If the car has been off the road since you started this thread, it could be nearly two years old.

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."

I would leave the VE table as it is and lower the Cold crank PW as you won't be running on the VE table until you have gone past the crank threshold setting (im guessing around 400RPM you have it set)?

What are your cold/warm PW's set to?

Edited by matty on 9th Jul, 2008.

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1/4mile in 13.2sec @ 111 terminal on 15psi

If it's been in the car since that's been off the road then we are talking more like 3 years eh Joe?

In the 13's at last!.. Just

more like 10.....

it has a can full of 2 month old stuff from the boot of my car and another can of fresh in it.

What are your pulse widths whilst cranking?

Should be around 2-3ms.

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."

about 3.3 ms

Is that with one or two squirts per cycle?

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."