Getting off the line
Turbo Mini Forums

Took the mini out for a spin on the weekend for the first time in ages. The screaming kids and the old snarler were out for the day

Great fun but wheel spin is massive in 1st and 2nd gears. 3rd grips eventually.

My brief spec is 10" wheels T2 turbo 1bar ish boost mega-jolt etc.

Which of these ideas is best.

1. Learn to use the pedals properly, not just as a on off switches.

2. 2 stage boost control. controled some how.

3. Use mega-jolts inputs to do something clever (I got the very old version (V2) I think.

I struggle with No.1 as my daily driver is 4WD so I get spoiled for grip.

So am leaning towards Numbers 2+3. Any one got a good system already?

I have had thoughts about using some ABS sensors to detect wheel spin and cut the power with megajolt but I'm not sure if it would cause more problems that it solves.

Any opinions gladly recieved guys :)

LSD?

take a look at my feature in Mmag this month, you're on the right lines

JK

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

get an apexi avcr like me,
it sense's wheel spin via a speedo pickup and cuts/lower's the boost,
i does this by self learning and after driving a day or two like normal it picksup on eratic speed spikes,
works really well,
plus you can have 3 different boost settings, and set boost inj each gear per every 500 rpm.

i neeeeed to get one of those avcr's

yeah one of those avcr's - would be great.. how hard is it to wire up etc?

do it nick,
you just put the solenoid between the turbo and actuator line, then the map sensor it comes with is tee'd from the inlet/megajolt,

then its just live and earth to a switch or ignition,

another wire for scramble boost which will last for 30 sec's,just on a push to make button,
i use a speedo pickup from a rover of some kind, forget which one,
only thing is, it reads in Kph which doesnt really matter as it seems to have the correct speed anyways,
they are well worth the money

Can anyone recommend a solenoid I can fit between my Actuator and bleed valve, so I can run a simple 2 stage boost as a starting point?

i may have a few kicking about,
used to run 6,9,12 ish psi,
i think they are standard metro items....

Has anyone thought of useing a megasquirt and only use the ignition side. As the ms also has capabilitys for boost control, launch an traction control etc

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

The Megasquirt will not do traction control. You will need a more sophisticated ECU for that.

We have also configured the MS for launch and boost control but have not tried it yet.

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."

In my head I'm thinking of a solenoid that when closed will run boost determined by the actuator spring, and when open will be what ever the bleed valve is set to connected to it.

I've got a metro turbo one that vents to the atmosphere, but would worry that due to the age of the part it may fail and over boost.

I will take a look at the megasquirt site perhaps it will at least give me a few ideas. thanks

Yes i moved to the darkside

Instagram @jdm_brett

How does launch control actually work? Does it retard the ignition when it detects wheel slip? Or something completely different?

In boost we trust

Launch control just cuts so many sparks to hold the rpm at a set amount whilst your foot is flat to the floor.

simple launch control does like Sturgeo states - a rev limiter in effect, real launch control modulates the torque of the engine to limit driven wheel speed to a pre-set or adjustable level above the real road speed, ideal wheel slip is around 5%, ie the spinning wheels are travelling 5% faster than the undriven wheels. The launch point rpm is maintained until the driven wheel speed drops within 5% say of the real road speed then the ecu will allow more rpm until the driven wheel speed is 5% higher then the real road speed - it'll do this until the engine has no more torque to give at any road speed in any gear

JK

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

Fook those AVCR's aren't cheap!

You'd be better off buying an ECU that has boost control and launch control built in. It would work out about the same by the time you've bought Mj and an AVCR controller. Sounds like a handy piece of kit though!

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www.fusionfabs.co.uk



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

John, how much is your ECU with traction control?

Team Racing

Keeping things simple! What tyres have you got on there?

seems they have gone up in price in the last year...

Blimey JK you sound like Martin Brundle.

I run a supercharger and I don't care the TB is on the wrong side.
VEMS + 12 PSI + Liquid Intercooler = Small Bore FUN!

Jim - on my car we've got 2 Typhoons, one for the engine one for the TC. The "big" ecu - Tornado is capable of traction/launch and drive by wire - £780+vat

gr4h4m - I'll take that as a compliment!

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

so could I get the typhoon to work with my Emerald & how much would that be?

Team Racing