I was wondering if turbo required an anual tuning,
is it a 1 time tune for turbo, or yearly tune
because i heard different stories from people
and the turbo car will mostly be daily driven

 

bump

 

it depends on how and what you tune with.

when you tune with a piggyback ecu, you are altering the signals the engine receives to decieve how much air and fuel are actually being put into the cylinder when your boosting it. the problem is that the car's ecu relearns through an A/F sensor in the exhaust manifold that tells it the true a/f ratios, and through that it make corrections, thus reducing the efficiency of your tune.

then, when you tune a car, it is essentially being tuned for the atmospheric conditions at that time. so the car is tuned for that air temperature and that elevation.

so drastic changes in elevation and climate will make the car start running lean or rich depending on when and where it was tuned.

there are solutions, one a standalone EMS that will replace nearly all the functions of the stock ECU. but that is expensive.

less expensive is the AEM F/IC. it has a a/f skewing feature that prevents the ECU from relearning, and then then it also has an onboard MAP sensor, so it tunes off Manifold Absolute Pressure, instead of the MAF sensor.

then there is another way that Garage1217 told me how to do with emanage, but i don't know if he wants me sharing that trick.

 

ahh i see, so i'm guessing your using techniques that will allow you to only tune your turbo for one time right?

 

that is how i think it is supposed to work, i haven't actually taken my car in for tuning yet. but that is what i have gathered from reading threads so far.

 

okay thanks for the help

 

I had my car tuned in the middle of March, it was around 65*, Perfect A/F all around

recently The temp went up to around 90* and my car started running VERY rich at Wide Open throttle, so I had to go back to my tuners and have him pull some fuel. It only took about 5 Minutes.

So far with my experience is that you will most likely need to get the tune slightly modified as the weather changes.

 

i see how much did it cost u for that 5 minutes?

 

couldn't you just go into the map and scale the injectors back a little bit to compensate for the temperature. i mean say you are running 550s and you notice that you are running really rich as you said above, couldn't you just scale it down

 

Not that easy. If you "scaled down" the injectors, you'd then be running lean at all other throttle inputs besides WOT, much worse than running rich. Unless you're running rich regardless of throttle input, then you may be able to do that.

 

I got it tuned at Churches In Wilmington, and he did the 5 Minutes for free

I suggest you go to Churches for tuning if you do get a turbo.