Well you don't HAVE to boot it all the time..

And, if your missus is driving it you could always just unplug the EBV; voila - baseboost!

i was just thinking that as with my greedy i have three setting

On my Blitz EBC channel 4 = Nutty b**tard full on will race anything setting 3 = Fast setting 2 = Every day driving, 1 = Wife setting. I really wouldn't want the missus to experience channel 4!

excatly, i would love to have a flea map (as my fastest option) but then be able to "turn it down" now and again for long journeys and for when the misses is wanting a go.

really could do with an answer from flea on this.

or opinions anyone?

When you have multiple boost settings with an EBC you modify the boost but not the fueling...

Hypothesis :

"If your car is mapped at 1.2 bar for example, the fueling will be ok at this pressure. But if you set 1.4 or 1.5 bar with the EBC you will probably run too lean"

"If your car is mapped on the max boost you plan to run... and you set a lower boost you will be too rich"

This is only hypothesis but is this right guys? And if yes, it means we need one different eprom for each EBC setting (to run rightly and safely)

What are your past experience about that?

I think you are correct MiniPit.

My Dad's old rally car, had a switch which allowed him to flick between 2 different maps. One which is balls out and one where all the boost and ignition is right down, for driving between stages.

I'm confident Leighton could sort something like that out, for anyone that really wanted one

I'm quite sure Leighton can map to different boost levels, with help of a Bigger MAF. He'll be along soon.

But if you are using an electronic boost controller, the ECU has no way of knowing the boost level you are running. I *think* there is just 1 map for fuelling and ignition, as MiniPit said, and when adjusting boost it will therefore alter how it fuels slightly ie. more boost = leaner, less boost = richer

Im also sure that leighton can map the fuelling at different levels

Ben

Yes you are quite right eldinho, my apologies

As punishment you can come and polish my car for me

Pffffffffffffffffft......... do i have to?

so.... now i'm wondering whats the better solution for me?

EBC so that I can set differnet boost levels dependant on the situation

or

The wonders of Flea-mapping but i'm stuck with the one setting.

Is it too much to ask to have both?

Flea can map your car with an EBC if you take it to him. In fact its probably the most common way he does it??

But if you use remote mapping then he will want to set the boost using the ECU which uses an EBV (prefably uprated).

One disadvantage of not letting the ECU control the boost (EBV)is you lose some safety features.

I tkink you are right Mini but don't forget the role of the lambda probe.
Is the lambda probe able to regulate the mixture? (beetween a boost set to 1b4 with an EBC and a boost set up at 1b2 for example?)

The Lamda is only used when you are at idle / off boost.

humm ok

Open or closed loop RULE Chris

ouep

what?

"ouep" means "Yeah" in French

ah - makes sense now!!

Did a well needed rebuild (SMIC to FMIC).
This reduced the max inlet temps from 65 to 28degrees, reduced the boost a little, but upped power with around 15hp.

The Kit (same as in current GB)

Some finishing needed

Finished, smoother

Getting there

Straight turbo - IC pipe

Bumper on

So; the newest graphs looks like this:

Graph 1 (hp@wheels, Nm@wheels, boost, lambda)

Graph 2 (hp@wheels, Nm@wheels, pressure before IC, after IC, temp(F) after IC)

Results in figures;
# 267hp @ the wheels / 6700rpm at 1.03bar
# 340Nm @ the wheels / 5300rpm at 1.2bar
# max 28.3deg C after IC, 20deg C ambient.
# Shell 99 octane

It's rather nice, this car.
So nice the clutch gave up on me. It does not slip but makes loads of vibrations.. That said, it's stock factory and done 193000km's. Fiat Quality!

Next step is a little more boost, now that I have decent cooling. (and a new GTA clutch..)

Well actually it was my demand to use the ECU/EBV. You can buy a map from Flea and use it with a EBC if you want to (why you would I don't really know).

Clutch changed (GTA), Flea map 2.0 is in the car and settled in!
Adjustment has been made to ign.timing, fuelmap and boost - with a nice new feature...

I now have a boost of 1.3bar before 3000rpm, then at around 4800rpm it rises to ca 1.45bar, after that sloping to ca 1.3bar over 6000rpm.
Haven't yet got any explanation from Leighton about this little feature, but I suspect it'll save my transmission etc. from the worst torque-bursts..?

Needless to say - it goes LIKE STINK now..
Until I've done the next RR-session I don't know much, but I suspect I need a Warlbro fuelpump.. I've noticed some misfirings at full whack, high revs.
According to JohnS the std pump is out of it's depth over 310hp.

Yet my first theory was bad sparks, that's exactly what it felt like.
I now have NGK Iridium BKR7EIX with 0.9mm gaps. Maybe I shouldn't have changed it from factorys 0.75mm? (was reading Fiat's book; "0.7mm to 0.9mm gap recommended".)
What do you think?

If it's the pump, exactly what pump should I use and where to buy it?

For your level of tuning, I guess you need an uprated fuel pump (Walbro 355lph, GSS340 model) with the wiring mod.

In UK, you can get it from here: Walbro 255lph. Not sure about Sweden though.

What injectors do you use? standard? it's not mentioned earlier on the thread.

Ok! Thanks for the link. Things are usually cheapest in UK with that weak £..
I have a list of mods on my first page. Injectors are std.
It seems the problem lies in the plugs right now. Fuelling is ok. Will less the gap to 0.6mm.

for sure!

We'll see!