Siamese Code Trial - With Boost
Turbo Mini Forums

Have started

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."

Wonderful news, keep us posted!

No logs today, but we are getting there.

The LM-1 Wideband decided to play up, then we lost the data stream for logging. When the LM-1 was working, it was spiking for some reason.

Also suffered a strange misfire. Hot starting also seems to be a new problem.

Now we have lost comms with Tuner Studio :(

Most the problems, inclusing the misfire and hot starting, seem to be caused by the coil sitting very close to the wideband sensors. So need to relocate the coil pack again.

Other than that, it's been fun driving a Turbo Mini for the first time. Only 8 psi boost, but still lots of fun and loving the sound of the dump valve. Tssshhhh.

We've got the AFRs close, but still some tuning to do.

Tssshhhh.

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."

great stuff, looking forward to the results :)

turbo 16v k-series 11.9@118.9 :)

Denis O'Brien.

Good to see you're getting there.

About the hot starting, make sure that the cranking speed is still less than what it's set as. Otherwise it's running off of the running tables instead of the cranking parameters.

Jean

http://www.jbperf.com/

Edited by Paul S on 5th Jul, 2009.

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 have found some data from one of the earlier runs before we lost the datastream. Attached.

You have to ignore the outer AFR (LM-1) spikes, but you can see the base figures in the trend are similar to the inner AFRs.

We have richened up the mixture since.

Interestingly, it shows the spikes at the gearchange which confirms that the sample chambers are working fine.

Attachments:

19.82kb

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."

Very good - a bit difficult to read because of the extra random spikes, but

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

Some more attached.

I seemed to have knocked about 10 secs of my 0-90mph with the turbo!

Still not quick, but not bad for two up in a full weight Mini.

Attachments:

17.18kb

Edited by Paul S on 6th Jul, 2009.

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."

is it a 2.9 diff or the 2.75?
and how long have you had your own section?

2.95 diff.

Actually 6k in 3rd is about 85 mph. Good job we have our own test track.

I've had my own section since someone, who has yet to own up, made it separate.

Edited by Paul S on 6th Jul, 2009.

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."

Great stuff Paul and Stugero!!!

Edited by TurboDave16V on 6th Jul, 2009.

I made the sections seperate, seeing as I thought as you were doing groundbreaking work, it would (a) give some deserved recognition and (b) make it easier for other people to try and follow what you are doing in the future.

However, from the reactions I've seen I wish I hadn't bothered to be quite honest.

Good work with the data log though, I know the main thing is that the inner and outer follow one another, but with AFR's around the 14.5 mark I'd definitely add some more fuel across the board if you can.

We have already made some improvements after the above logs were taken. We have richened up the top end by a fair amount.

But the datastream lost the MAP sensor reading. We tried to fix that and we lost the datastream altogether.

Without the MAP reading, the logs are meaningless.

Tom, your good intentions are appreciated.

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."

Sturgeo has been working all evening getting the logging system working. I was watching TDF on TV - fantastic stuff.

The problem with the logging appears to be a faulty LMA-3. It finally packed up altogether.

So Sturgeo had a go at extracting the data from the Megasquirt and feeding it into Logworks. Amazingly, he got it to work. He is an IT boffin anyway.

So we now have logging of the important parameters again.

Just quickly whizzed around the block to get a log, but it has gone very lean on us. Sort that out later in the week.

At least we are back on track.

Big thanks to Sturgeo.

Attachments:

17.48kb

Edited by Paul S on 6th Jul, 2009.

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 think its running lean because the vacuum/boost takeoff pipe for the LMA-3 wasn't sealed properly.

I'll block it off whilst you go to the airport tomorrow afternoon and see if it makes any difference.

Possibly.

The MS was picking up the boost, but the fuel presure regulator may not have been as it is the same branch of the vac/boost pipe as the LMA-3.

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."

great progress , why is the yellow afr so spikey ? can you utilze the smoothing on logworks to get cleaner traces
?

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

The problem with the yellow trace is due to the wideband sensor cable being too close to the coil pack - I hope.

I've moved it away as far as I can, but it's still picking up interference. It's not as bad as it was.

I'm going to move the coil pack before 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."

is it a sheilded cable?

if not wrap some bacofoil round it.

The coil pack is also too close to the TB and the throttle is not returning properly. Bit too busy in that part of the engine bay. So I've got to move it anyway.

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."

yup ,as joe says, some tin foil around it ,and earth the foil .

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

Or put it in a steel braided hose and ground the braid (only at one end, preferable the MS side).

Jean

http://www.jbperf.com/

I'll try the foil for a short term fix.

What's interesting about the log from last night, now having studied it, is the near linear acceleration.

Previous rpm traces had been spikey, but now it is more stable, you can see a straight line, possibly taling off at 5.5k.

Presumably that means a flat torque curve?

EDIT: Also how the AFRs change as soon as the MAP drops before the gearchange, actually instantaneous. Those AFR sample chambers are working fine.

Edited by Paul S on 7th Jul, 2009.

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."