View Single Post
  #11 (permalink)  
Old 05-27-2008, 02:24 PM
ballin's Avatar
ballin ballin is offline
Veteran Member
 
My Garage
N/A
My Details
Last Online: Yesterday 10:27 PM
Join Date: May 2007
Location: Lakeland,TN
Posts: 760
Rep Power: 3
ballin is on a distinguished road.
ballin's Photo Albums
Default Re: Larger tires affecting shift points?

Quote:
Originally Posted by THUNDERA View Post
This is what I was thinking - but its backward. With larger diameter tires the ECU thinks the vehicle is moving slower than it actually is (if its reading the speed sensor). So if the wheels are actually rotating slower for a given speed wouldn't the ECU delay the shifts to compensate?

I have the 33" BFG's They are appox. 1.5" bigger than stock so I calculated that I am actually travelling 4% faster and farther than indicated.

Can the dealership re-calibrate for the tires? Or do I have to buy a tuner?
dealer cannot do this. have to buy a tuner or the hypertech tire/speedo recalibrator
__________________
07 tundra 5.7, 4x4,trd, dc, sr5 blk-readylift,1'' toytec block,305/65/18 bfg's,chrome door handles,tint,hatchie bottoms custom seat covers, true duals flowmaster 10 series race mufflers w/h-pipe
Reply With Quote