Sepdometer change after larger tire install
JK Newbie
Joined: Mar 2007
Posts: 26
Likes: 0
From: Navyland, VA
I drive by my TAC, I do not care how fast I am going on the highway. All I care about is how many RPMs I am turning. But I am running 35's. Most any Jeep, even the new ones after 65 mph you are pushing it down the road. Jeep's are not exactly aerodynamic.
You can use a GPS to get your speed at different RPMs.
You can use a GPS to get your speed at different RPMs.
My JK on 35's sees 75mph daily, and for shits and giggles has been up to 90
(speedo is 5-6mph off at 60 verified by GPS, just remember this and its no issues) and my Waggy on 35's has pegged the speedo
JK Enthusiast
Joined: Feb 2007
Posts: 496
Likes: 0
From: Texas, Deer Park
I'm sure they will have programmers out for JK's so you can set the computer to a different tire size and gear ratio.... On my Z71 I had I used a diablo sport tuner, kept the factory settings with option to economy mode or performance and with any of these I was able to set the tires and gears up on mine. I'll definately be getting one once I get the jeep and put tires and gears on it. You ABS should be obsolete if you don't adjust the computer for the change in tires and especially the change in gears tires aren't that bad unless you go really big.
JK Jedi Master
Joined: Nov 2006
Posts: 15,170
Likes: 0
From: .
I'm sure they will have programmers out for JK's so you can set the computer to a different tire size and gear ratio.... On my Z71 I had I used a diablo sport tuner, kept the factory settings with option to economy mode or performance and with any of these I was able to set the tires and gears up on mine. I'll definately be getting one once I get the jeep and put tires and gears on it. You ABS should be obsolete if you don't adjust the computer for the change in tires and especially the change in gears tires aren't that bad unless you go really big.
JK Newbie
Joined: Mar 2007
Posts: 26
Likes: 0
From: Navyland, VA
Makes my 11th jeep and I call Bull shit. The only way your jeep sees 75 daily is cars passing you.
Don't think this is my first rodeo, gearing for 35's (4.10,4.88,5.13) will only go so fast before you redline. With 4.10s, 35's at 75mph you are pushing 3500-3800 rpms, if you are driving this down the highway every day, you are a dumbass.
Don't think this is my first rodeo, gearing for 35's (4.10,4.88,5.13) will only go so fast before you redline. With 4.10s, 35's at 75mph you are pushing 3500-3800 rpms, if you are driving this down the highway every day, you are a dumbass.
you want video or pics to shut you the fuck up?
JK Newbie
Joined: Mar 2007
Posts: 26
Likes: 0
From: Navyland, VA
