I'm looking for a boost controller, manual controllers are cheap, but are the electronic version much better?
wrinx
I'm looking for a boost controller, manual controllers are cheap, but are the electronic version much better?
wrinx
My Q4 in the Garage
www.alfaromeo155.co.uk ............................ □□□-V-□□□ .................................. www.ilmostro.co.uk
Evodelta's post:
http://forum.berlinasportivo.org/sho...0&postcount=41
1993 Alfa Romeo 155 Q4 , 2.0 Turbo
Damn....best go join the boys at Maccy D's then...
wrinx
My Q4 in the Garage
www.alfaromeo155.co.uk ............................ □□□-V-□□□ .................................. www.ilmostro.co.uk
Thanks....and an update on your BC
wrinx
My Q4 in the Garage
www.alfaromeo155.co.uk ............................ □□□-V-□□□ .................................. www.ilmostro.co.uk
I asked a fella who is running one but really all I got out of him is that the delivery of the boost is controllable so it can come in gradually. I think this is relevant on a FWD where wheel spin and torque steer might be an issue but on ours, all the power early as possible would be best so a MBC is best IMO.
I still have boost leaks - its flying up to 1 bar and falling to about 0.7 now - each time I raise the boost it doesnt fall as far - it was falling to 0.5 when it was set to a 0.8 peak, now its up to a 1.0 peak, it falls to 0.7..........a bad boost controller?
1993 Alfa Romeo 155 Q4 , 2.0 Turbo
Thanks, if that's the case I want a MBC which can be run to the cabin....will there be any problems caused by running the vacuum hoses in to the cabin???
wrinx
My Q4 in the Garage
www.alfaromeo155.co.uk ............................ □□□-V-□□□ .................................. www.ilmostro.co.uk
Not sure TBH, the air in the line between the turbo and wastgate has to compress over a much longer line now, but I have no idea if that will make a difference or not....maybe a question for a turbo specialist or EvoDelta....
1993 Alfa Romeo 155 Q4 , 2.0 Turbo
My Q4 in the Garage
www.alfaromeo155.co.uk ............................ □□□-V-□□□ .................................. www.ilmostro.co.uk
Need to reconnect the pierburg valve and test really. AFAIK the MBC is there to hold constant boost - no movement at all when on full throttle...
1993 Alfa Romeo 155 Q4 , 2.0 Turbo
The Q4 already has an electronic boost controller. Its VERY easy and inexpensive to gain almost total control over the boost characteristics of the engine. You just need to by a ROM emulator (moates.net) and use the free software (Tunerpro RT).
Sounds interesting, will have a look later
wrinx
My Q4 in the Garage
www.alfaromeo155.co.uk ............................ □□□-V-□□□ .................................. www.ilmostro.co.uk
Got the software...have I got this right, software to change parameters and then the programming is held in the emulator???
You may have to explain this
Ostrich 2.0 looks like the favourite....?
wrinx
My Q4 in the Garage
www.alfaromeo155.co.uk ............................ □□□-V-□□□ .................................. www.ilmostro.co.uk
Squadra...
wrinx
My Q4 in the Garage
www.alfaromeo155.co.uk ............................ □□□-V-□□□ .................................. www.ilmostro.co.uk
all the info you need is there :http://www.berlinasportivo.com/Techn...CU/hexmaps.php
but you need to check fueling with O2 sensor to avoid underfueling and keep in mind that with the oem MAP you can rise boost up to 1,2 bar {as they say}at middle range.
Nick
Someone's left a load of web code on that link...needs sorting so I can read the info
Looks like I'm back to a MBC then....still want it in the cabin though
...any problem with using longer pipes to the cabin? Does it slow the system in any way?
wrinx
Last edited by wrinx; 29-07-08 at 12:14.
My Q4 in the Garage
www.alfaromeo155.co.uk ............................ □□□-V-□□□ .................................. www.ilmostro.co.uk
My Q4 in the Garage
www.alfaromeo155.co.uk ............................ □□□-V-□□□ .................................. www.ilmostro.co.uk
wrinx - I read on the net (though I cant find the reference) - of a WRX enthusiast who tried an experiment using 100 meters of thin tube (on a roll) to connect his boost gauge and manual controller. It made no measurable difference to turbo spool up time.
.. you can't use a proprietary chip like the squadra if you want to set the boost etc up yourself - you can just buy an off the shelf generic 27c256 EPROM that fits the ECU and copy the code direct into it - however (and even simpler...) I am simply using the Ostrich 2.0 plugged into the ECU - rather than a separate 27c256 - and its very quick and easy to make changes to the code.
jimn.
Mmm, you keep changing my mind!
Tell me more....
wrinx
My Q4 in the Garage
www.alfaromeo155.co.uk ............................ □□□-V-□□□ .................................. www.ilmostro.co.uk
Decided to go the cheaper route and bought a Powertek Boost Controller, looks like a quality item so hopefully all will be well
Might look in to this electrical box of tricks in the future
wrinx
My Q4 in the Garage
www.alfaromeo155.co.uk ............................ □□□-V-□□□ .................................. www.ilmostro.co.uk
squadra chips have a copy protection on them, so it's doubtful you can start from your squadra to make a new chip.... not that you'll need to with a MBC
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