EFI Live along with another programmer to correct speedo?

[9W3-HD]

Would it be possable to reprogram the speedo for bigger tires with another programmer like hypertech if your running an EFI Live tune already?
Just curious.. Nick told me EFI Live was known for tire size calc inaccuracy.

 

[dmaxfireman]

efi live does just fine to calibrate tire size.

 

[fast03]

efi live does just fine to calibrate tire size.

x2

 

[Cornell]

Each time I've done a tire size change with efilive its been accurate to the mile

 

[MadMaxx61]

yes I would just keep playing with EFI Line and use a GPS till it is right on I had to do that to my friends 4.8L 1500 took about 45mins to get it right but now it is right on well till the rubber gets burned off then it will be out a bit...:angel:

 

[9W3-HD]

thanks for the reply's Im really new to EFI, still leaning so bear with me. The tire size calculator is the easiest way to accurately adjust the speedo? I didn't see my actuall tire size on there so what you would just choose the closest one?

 

[MadMaxx61]

it is The number of pulses the speed sensor produces per mile. The tire size calculator will be near it but remember a 33" is not 100% 33" it may be 33.2"

 

[9W3-HD]

can you make adjustments with just the flashscan or do you need the labtop plugged in also?

 

[MadMaxx61]

laptop is the only way that I know of right now.

 

[Cornell]

can you make adjustments with just the flashscan or do you need the labtop plugged in also?

You'll need to make the modification to your tune in EFILive.

Open the tune you want to change the tire size in > Speedometer > Parameters > (up in the upper left corner of your window is the "Tire Calculator" click on that > Speedo Calculator > Then enter your tire size at the top in millimeters, sidewall percentage, and rim size > Apply > Close

:hug:

 

[9W3-HD]

You'll need to make the modification to your tune in EFILive.

Open the tune you want to change the tire size in > Speedometer > Parameters > (up in the upper left corner of your window is the "Tire Calculator" click on that > Speedo Calculator > Then enter your tire size at the top in millimeters, sidewall percentage, and rim size > Apply > Close

:hug:

and then do another flash for it to be corrected?

 

[Big Block 88]

Change your tire size in your tune and then reflash your truck

 

[9W3-HD]

thanks guys!!

 

[Cornell]

and then do another flash for it to be corrected?

Yes, I forgot that part :rofl:

 

[MMLMM]

measure tire height and do the math. Apply to your tune.

EFI Live ha no issues with doing it. The calc. program built into has issues sometimes, but if you do the math yourself it will be perfect. No need to ride around with a gps flashing tunes in all day.