Launch control for Motronic

[Acidburn]

BTW - have you actually tried to fit B5 stalk onto B3/B4 yet ?

If I get a chance i'll try this as I have a few stalks laying around

[Zoig]

If I get a chance i'll try this as I have a few stalks laying around

Could you also post measurements from the intermittent switch (min-max value of the rheostat, how many steps and what increments they are at).

[prj]

Adjustments will be 1800 to 7200 rpm in increments of 36 rpm.
We will be testing it with Paul shortly.

[s2_wot]

Funk switch + dash light dimmer switch lads located over the radio?

Great work I feel the need to burst a clutch / gearbox / driveshaft soon. Combined with the FFS this would help the old girl shift fairly well.

Want!

[Billman]

Adjustments will be 1800 to 7200 rpm in increments of 36 rpm.
We will be testing it with Paul shortly.

You and Paul should let this launch control thing and get on with the daughter board stuff. That way one can set RPM limits etc. on his own plus it's gonna give you more moneay :-)

[prj]

I don't think the daughter board is worth it money wise.
I doubt many people will buy it.

The thing is, the ability to tune is just half the problem. The other problem is knowing how to tune, and that doesn't come over night.
Just because you can adjust maps in Motronic or in VEMS does not make you a tuner.
And it will be much easier to let a tuner tune VEMS, since more people are familiar with it and speed density...

[nip]

[QUOTE=prj;558872]Motronic without MAF on MAP sensor coming in summer most likely.
Don't know how well that'll work yet.


When? so we can get rid of the maf alltogether, is this possible? if so hurry

[Billman]

We all learn every day. Many people would buy it I think just because they can implement changes with help from others....like VEMS.

[prj]

When? so we can get rid of the maf alltogether, is this possible? if so hurry

Why do you want to "get rid of the MAF"?
I already have software that runs with the RS4 MAF, which does not max until 600hp.
All this mass-flow hate is silly and caused by misunderstanding.

Also, it is mostly stated for marketing reasons. Look at ME7 cars. They make 800+ hp on Motronic just fine.

[quattrofrank]

What settings do you use on the launch?
soft rev limiter with 50% fuel / ignition cut and like -20degress igintion ?

Tried to fiddle around with my car with 60% start ignition cut and a 200rpm range with 90% end cut. Didnt manage more than 0,4-0,5bar.

The only way to get a good launch control setup is to just try different settings, or is it a "recepie" to have a good starting point?

[prj]

I have just fuel cut.
I don't want to retard ignition, because someone will blow their manifold and melt their turbo with it.
For that to be even remotely safe you need EGT feedback, but Motronic does not have EGT. Of course, it is possible to add EGT to Motronic, but I don't see the need for it just because of this feature...

[mouse]

Just had a thought for another location for controls.. In the ashtray, still within reach and can be totally out of sight if the lid is closed.
What do you think?

[Jamo]

Why do you want to "get rid of the MAF"?
I already have software that runs with the RS4 MAF, which does not max until 600hp.
All this mass-flow hate is silly and caused by misunderstanding.

Also, it is mostly stated for marketing reasons. Look at ME7 cars. They make 800+ hp on Motronic just fine.

Global MAF hating is mainly down to the price of the replacement part which quite frankly considering how wide place they are in cars is not understandable.

Have you got details of this conversion with the RS4 maf, is coding only or is it bespoke to your tuning only i.e car has to be tuned by yourself

Have you example car projects working close to these power levels, threads, dyno's etc ?

[S2central.net]

MAF hating is also due to fact that hot-wire version gets destroyed much above 400bhp... hot-film MAF is superior in this regard and I know prj has been working on that - we got some more fun to do with scaling and such for a cleaner install... The principle of a MAF is perfectly sound.

[S2central.net]

Just had a thought for another location for controls.. In the ashtray, still within reach and can be totally out of sight if the lid is closed.
What do you think?

It is a possibility - if maybe fiddly to get in there... I often thought it a good location for other hidden switches... trouble is lots of folk use that location for trash unt ash