N2o

OK just for Peter as long as he doesnt come a arrest me

The only one answer to the MANY Many replies, Its the only question and answer im posting, so dont ask for anymore replies

Forum; Shame the GTA doesn't respond to a piggyback units like the japanese cars do...

Things like Dastek, Unichip etc, can't remedy the over correcting ignition retard and fuel enrichment caused by the high inlet temp air sensor..



Dastek;Yes it can, it has two temperature inputs that can be linked to any of the maps inside the Unichip, so timing & fuel corrections can made versus both water & charge temp, but rarely are they needed unless there is a specific problem with the cars compensation maps (pretty rare)

Some Dastek advertising

The UNICHIP can be used for the following functions:



Alter ignition timing in a 3D map down to 0.1degree resolution. YES

Alter fuel mixture in a 3D map by +-50%. NO

Control variable valve timing. N/A

Control variable induction systems. N/A

Control turbo wastegate solenoid systems. YES

Record maximum boost pressure. YES

Record maximum RPM. YES

Water injection control. YES

Nitrous oxide control. YES (ON OFF SWITCH)

Automatic secondary map when water or nitrous is active. YES

Automatic switch back to primary map when water or nitrous is low or de-activated YES

Road speed governor delimiting. N/A

Calibration of electronic speedometers. N/A

Conversion of electronic speedometers from KMH to MPH. N/A

Drive additional fuel injectors, with variable blend control. YES

Launch control. N/A

Full throttle gear changes. N/A

Idle speed stabilization. N/A

Conversion to individual throttle bodies on certain cars. YES

Conversion of mechanical injection systems to full 3D fuel & ignition control. NO

Conversion from flap type Air Flow meters to less restrictive Hot Film meters. YES

Multiple maps to suit different fuels. YES

Shift lights YES

Alter or implement rev limits NOT ON A GTA

Alter or implement boost limits YES

..it just can't increase the fuel beyond 5v map..

What would we want a stand alone ECU for if not to hype the power of our poor old V6's more so when "nearly" every one on here seems anti power

I'm not anti power

I've got 3 PRV 24v engines, a standalone ECU and a Rotrex supercharger with oil cooler cluttering up my living room!

My mate had the same sort of storage arrangements ,he came back one day to find it had all fallen through the floor

[quote

I've got 3 PRV 24v engines, a standalone ECU and a Rotrex supercharger with oil cooler cluttering up my living room!

I said nearly everyone Stephen

What would we want a stand alone ECU for if not to hype the power of our poor old V6's more so when "nearly" every one on here seems anti power

I'm not anti power

I've got 3 PRV 24v engines, a standalone ECU and a Rotrex supercharger with oil cooler cluttering up my living room!

So in theory Steve you're telling us you've got a living room pushing out about 700 hp.

Not bad.

[stephendell]

That's not mentioning the nice new line in grey velour armchairs!

:wink: OK just for Peter as long as he doesnt come a arrest me

The only one answer to the MANY Many replies, Its the only question and answer im posting, so dont ask for anymore replies

Forum; Shame the GTA doesn't respond to a piggyback units like the japanese cars do...

Things like Dastek, Unichip etc, can't remedy the over correcting ignition retard and fuel enrichment caused by the high inlet temp air sensor..



Dastek;Yes it can, it has two temperature inputs that can be linked to any of the maps inside the Unichip, so timing & fuel corrections can made versus both water & charge temp, but rarely are they needed unless there is a specific problem with the cars compensation maps (pretty rare)

And how is it going to correct the fuel when we are at maximum range on the map signal? There is no more fuel to give...

And how will two settings be setup when, the car is instantly peaking the air temp reading on the RR.

:wink: OK just for Peter as long as he doesnt come a arrest me

The only one answer to the MANY Many replies, Its the only question and answer im posting, so dont ask for anymore replies

Forum; Shame the GTA doesn't respond to a piggyback units like the japanese cars do...

Things like Dastek, Unichip etc, can't remedy the over correcting ignition retard and fuel enrichment caused by the high inlet temp air sensor..



Dastek;Yes it can, it has two temperature inputs that can be linked to any of the maps inside the Unichip, so timing & fuel corrections can made versus both water & charge temp, but rarely are they needed unless there is a specific problem with the cars compensation maps (pretty rare)

And how is it going to correct the fuel when we are at maximum range on the map signal? There is no more fuel to give...

And how will two settings be setup when, the car is instantly peaking the air temp reading on the RR.

No more answers i said

[stephendell]

So in theory Steve you're telling us you've got a living room pushing out about 700 hp

Fortunately only the ECU, Supercharger and two interiors are in the living room. Nice driving position over by the window though!

I'm definitely not anti power I can just see the limitations of the turbo PRV on the standard set up. I am going to be going back to the RR next week to re-set my fuelling so I will have some new results which will show a significant improvement.....the chargecooler wasnt actually working on the last session due to airlocks in the system and the car had an intermittent misfire that is now totally cured.
I dont have upgraded internals but my engine is a recon item from about 5 years ago and I have replaced a hell of a lot of other stuff......I paid over the top money for my car because it had a recon engine in it......low mileage and lots of years is not necessarily a good thing and NOS will put a fair bit of strain on your engine that was my only concern.
My aim is to get around the 300 bhp mark which with the lightweight of the car will do nicely for my needs....if I thought a Dastek could get me much beyond the set up I have now I would buy one, but as I am hopefully at around the 250bhp mark at the minute I dont think its worth the effort....the fully prog ECU will increase both power and driveability and allow me to run my bigger injectors.
I dont suppose Dastek would have any legal issues with you printing answers.....you own the rights to the email and if printed are doing it to promote their products to us unbelievers.

As i mentiond Peter, i am sure they will answer any questions, I am sure the standalone will be better then the Dastek at the higher end of the tuning scale, and if the cost is only £100-£150 ish more then i paid for the dastek inc the other things on the day it sounds a bargain, and maybe i should have waited i was under the impression that it was going to cost over a thousand with the bits and pieces req + mapping ect,

As i mentiond Peter, i am sure they will answer any questions, I am sure the standalone will be better then the Dastek at the higher end of the tuning scale, and if the cost is only £100-£150 ish more then i paid for the dastek inc the other things on the day it sounds a bargain, and maybe i should have waited i was under the impression that it was going to cost over a thousand with the bits and pieces req + mapping ect,

Well yes, the only things that cost extra are the bigger injectors, 3 bar map sensor etc, wideband lambda, but these are the things you need to do it properly in order to get more power.

End of the day whether you are running standard ecu, Dastek or a full blown standalone ecu, on standard map sensor and injectors, you can only run 1 bar max and around 230-240bhp.

OK, One more reply , just to chew over

Also, you have to remember, there is no useful mapping after 14.7psi, as the GTA mapsensor is a 2 bar absolute sensor. If the RR map your car for 20psi, it will fuel exactly the same at 14psi, so if you run a boost pressure lower than 20, it will overfuel massively...



This is why the Unichip reads from its own 2.5bar absolute (22psi boost) pressure sensor, so that the Unichip can read beyond the original design of the std car. We could use a 3.5bar (36psi) absolute version if required.

OK, One more reply , just to chew over

Also, you have to remember, there is no useful mapping after 14.7psi, as the GTA mapsensor is a 2 bar absolute sensor. If the RR map your car for 20psi, it will fuel exactly the same at 14psi, so if you run a boost pressure lower than 20, it will overfuel massively...



This is why the Unichip reads from its own 2.5bar absolute (22psi boost) pressure sensor, so that the Unichip can read beyond the original design of the std car. We could use a 3.5bar (36psi) absolute version if required.

Steve, it doesnt matter if the unichip has its own sensor and can read 100psi -

HOW CAN IT PUT EXTRA FUEL IN TO COMPENSATE FOR THE EXTRA BOOST WHEN IT DOESNT CONTROL THE FUELING!?

Best thing to do Steve, is ignore the schpiel on the website, as most of it applies to other cars and not the GTA.

Download their installer and setup and manual and the wiring diagram, and then you'll get the gist of what is actually possible.