Recalibrating speedo
Thread Starter
JK Enthusiast
Joined: Feb 2008
Posts: 256
Likes: 0
From: Davison, MI
Recalibrating speedo
Hi everyone I was just wondering if I should recalibrate my speedometer? I'm running 37s and heard that it would change the way the shift pionts are???????
I dont know I dont want to spend any $$$$ that I dont even really have. Can anyone tell me if they could feel a difference on performance maybe on the highway or anything at all....
Thanks alot for any info....
I dont know I dont want to spend any $$$$ that I dont even really have. Can anyone tell me if they could feel a difference on performance maybe on the highway or anything at all....Thanks alot for any info....
JK Jedi Master
Joined: Jan 2008
Posts: 11,463
Likes: 165
From: Austin <--> Colorado Springs
Yep, changing the shift points will be noticeable. And my opinion is that you should recalibrate anyway. If nothing else, it keeps you legal.
If money is tight, the AEV Procal has a ton of functionality for the price. Or move up to a programmer for some extra cash and get the performance mods too.
If money is tight, the AEV Procal has a ton of functionality for the price. Or move up to a programmer for some extra cash and get the performance mods too.
Former Vendor
Joined: Apr 2007
Posts: 3,621
Likes: 1
From: nowhere
AEV Procal or the Hypertech Max Energy are the only options I'm aware of. Hypertech makes a lesser model through ProComp that is similar to the Procal, but I think it's more and does the same.
On a budget I'd go with a Procal, but if you want a little help go with the Max Energy. The power boost is nothing to write home about, but for me the improvement in the throttle response and the improved shifting made it worth awhile -- I don't know if the latter is addressed with the Procal.
On a budget I'd go with a Procal, but if you want a little help go with the Max Energy. The power boost is nothing to write home about, but for me the improvement in the throttle response and the improved shifting made it worth awhile -- I don't know if the latter is addressed with the Procal.
Sponsoring Vendor
Joined: Aug 2006
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JK Super Freak
Joined: Jun 2007
Posts: 1,461
Likes: 0
From: MD DC area
How long have you had your 37s? Your speedo is way, way off. Have you been using a GPS to tell your mph?
Easiest, fastest and cheapest way is to buy the AEV procal.
I don't have any first hand knowledge on the Superchips Flashpaq.
I really liked my Hypertech Max energy and found it to be a nice addition, but it was pricier than the AEV. If you want a bit of extra performance, I'd suggest finding one used on the forum. You should be able to get a decent deal on it.
Easiest, fastest and cheapest way is to buy the AEV procal.
I don't have any first hand knowledge on the Superchips Flashpaq.
I really liked my Hypertech Max energy and found it to be a nice addition, but it was pricier than the AEV. If you want a bit of extra performance, I'd suggest finding one used on the forum. You should be able to get a decent deal on it.
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JK Enthusiast
Joined: Jun 2008
Posts: 207
Likes: 0
From: Edison, NJ
just received the AEV Procal from Northridge TODAY will install tomorrow and get back top you for 130 bucks seems to do a whole bunch after a 5 minute read of the manual. I too am running 37's for about a month now and know i am WAY off on the speedo. my buddy was doing 60 my speedo said 40ish
