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Question about gettin car tuned.

EnricoPalazzo

By EnricoPalazzo,
in Engines & Forced Induction

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EnricoPalazzo Grand Master

EnricoPalazzo

Posted
Posted

Hey guys and gals.

Im gettin my unichip hopefully installed by next week.

I am also tryin to purchase an adj cam gear.

My question is, if i got the ecu tuned without the adjustable cam gear, would the gains be different to if i got the car tuned with the adjustable cam gear ( tuned and set to -4 deg).

Does that make sense?

What are ur thoughts.

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https://www.sau.com.au/forums/topic/29160-question-about-gettin-car-tuned/
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JimX Grand Master

JimX

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How does the Unichip for the R33 work? Do they replace the whole ECU or just the main chip inside? Either way does everything else work as before, like air conditioning etc? How much do they charge for the unit itself and programming/reprogramming?

Jay95R33 Grand Master

Jay95R33

Posted
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How does the Unichip for the R33 work? Do they replace the whole ECU or just the main chip inside? Either way does everything else work as before, like air conditioning etc? How much do they charge for the unit itself and programming/reprogramming?

JimX - the Unichip on the R33's is still a piggyback computer so the stock ECu does all the normal air con and all the other stuff.

Sort of like a SAFC but it does timing as well.

J

JimX Grand Master

JimX

Posted
Posted

Back onto the original question - I just tried 3 and 4 degrees on my adjustable cam gear and the car and the car ran noticably worse than 0 degrees both times.

I'm not 100% sure it's because the PowerFC wasn't coping, because it could have just been maxing out the AFM a lot easier. I did get the warning light a couple of times, but I get it at 0 degrees too so who knows.

JimX Grand Master

JimX

Posted
Posted

Oh great now you tell me, I coulda saved $175 and a lot of stuffing around! :rofl: Everyone else seems to be getting good results with 3 or 4 degrees retard. If mine is going to be fine on 0 then I may as well put the original gear back and sell the Apexi one.

JimX Grand Master

JimX

Posted
Posted

Well, I was maxing out my AFM and the injectors were up over 93% duty even at 0 degrees. It could just be getting to the limits a lot earlier, hence the iffy top end.

I'm pretty sure it'll be fine at -4 or so after a tune, after I replace the aforementioned items. The AFM arrives in January or February, and a tune comes soon after that.

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