2016 Tacoma with 4.88 gears and 33 tires and Hypertech

Has anyone had any luck programming the Hypertech inline module with 4.88 gears and 33 inch tall tires thank you

 

Are you going to add a locker?

 

Gears don’t effect the speedo.

 

Even if you enter the tire size of original to the new tire size it’s still off

 

Use the actual tire size in inches instead. You’ll get a more accurate reading that way.

 

So you didn’t put anything in for the gear ratio

 

"33 inch" tires often vary drastically in actual height. Mine was off a bit so I just modified the size in hypertech until it was spot on with GPS.

 

No

 

Incorrect

 

Wanna bet?

 

Yes

 

I thought the tacoma read the rotation at the wheel and sends the info that adjusts the speedo based off of that

I know real solid description

 

Doesn’t matter what all those pages say, not do I care.

Fact of the matter is that a gear change does not effect the speedo. Period.

Source: I have 4.30’s installed on an AT truck and when they were installed the speedo did not change. Also, I have the hypertech and 285/75/16’s and did not need to alter the gear ratio settings.

 

No, leave it at the default setting.

 

Then why would the speedo be 15 mph slower then what I’m going

 

Yes do NOT change the gear specs in hypertech software. Only tire diameter

 

Post a screenshot of the values you use in the hypertech program.

 

And I have 275 70 18 tires

 

And a 4.30 gear with that tire size you have would be dead on