Calibrating computer after fitting 725cc injectors

Bikeracer1098 · 03-25-2018, 07:47 PM

Just bought a 2016 370z Nismo which has had a Stillen supercharger kit fitted along with 725cc injectors and ECUtek remap etc

During the drive home Car averaged 20MPG however average on dashboard is 9MPG

Is this because the installer/tuner hasn’t recalibrated the computer etc

If so is it possible to recalibrate or do I need to return to tuner?

Jinxx · 03-25-2018, 08:52 PM

Best way to calculate is from full tank down to gas light then when refilling see how much gas it take and divide the mileage ...the stock display won’t read accurate to even consider using ......and of course mileage will depend on how you drive ...more boost less miles ..less boost more miles

ByThaBay · 03-27-2018, 02:39 AM

Quote:

Originally Posted by Bikeracer1098

Just bought a 2016 370z Nismo which has had a Stillen supercharger kit fitted along with 725cc injectors and ECUtek remap etc

During the drive home Car averaged 20MPG however average on dashboard is 9MPG

Is this because the installer/tuner hasn’t recalibrated the computer etc

If so is it possible to recalibrate or do I need to return to tuner?

Hello, ecutek tuner here. It is likely your tuner has altered the value of the fuel consumption meter calibration value. Either this value needs additional adjustment or you can try putting it back to stock to see if the MPG will show more accurate. I've done a few vehicles with larger injectors where I've left that value alone and when all the other settings were in place the estimated MPG appears quite accurately.

Senna-F1 · 03-31-2018, 02:57 PM

Larger injectors would have shown an INCREASE in MPG with no other changes.

ByThaBay · 03-31-2018, 03:10 PM

Quote:

Originally Posted by Senna-F1

Larger injectors would have shown an INCREASE in MPG with no other changes.

with certain calibrations/software yes. But not always

cupcakez · 03-31-2018, 03:23 PM

Quote:

Originally Posted by Senna-F1

Larger injectors would have shown an INCREASE in MPG with no other changes.

i didn't know that! maybe that's why when i installed supercharger into my car...my MPG went up xD
man... i should get 5000cc injectors hahaha jk

03-25-2018, 07:47 PM	#1 (permalink)
Bikeracer1098 Base Member Join Date: Dec 2017 Location: Camberley Posts: 59 Drives: Porsche 997.2 turbo Rep Power: 7	Calibrating computer after fitting 725cc injectors Just bought a 2016 370z Nismo which has had a Stillen supercharger kit fitted along with 725cc injectors and ECUtek remap etc During the drive home Car averaged 20MPG however average on dashboard is 9MPG Is this because the installer/tuner hasn’t recalibrated the computer etc If so is it possible to recalibrate or do I need to return to tuner? __________________

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03-25-2018, 08:52 PM	#2 (permalink)
Jinxx Track Member Join Date: Dec 2015 Location: South Carolina Posts: 699 Drives: 2017 nismo 370z Rep Power: 3375	Best way to calculate is from full tank down to gas light then when refilling see how much gas it take and divide the mileage ...the stock display won’t read accurate to even consider using ......and of course mileage will depend on how you drive ...more boost less miles ..less boost more miles

03-31-2018, 02:57 PM	#4 (permalink)
Senna-F1 Enthusiast Member Join Date: Jun 2016 Location: Cary, NC Age: 54 Posts: 425 Drives: 370SC,EliseSC,MR2T Rep Power: 50	Larger injectors would have shown an INCREASE in MPG with no other changes.