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Old 02-09-2012, 03:59 PM   #1
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AEV ProCal

I'm going to get one I think, since I run 35s, but have a couple of questions:

* Adjusting Shift Points: People have talked on here about how you can adjust shift points. The description online (AEV Conversions 30406007AB - AEV ProCal Module for 07-12 Jeep® Wrangler & Wrangler Unlimited JK - Quadratec) says that it can, among other things (i) recalibrate speedometer/odometer when you change tires; and (ii) "Axle gear ratio recalibration (Resets automatic transmission shift points to maximize the benefits of an axle gear ratio change)." Does that mean that you can only adjust your shift points if you regear? If not, does it adjust shift points based on tire size or something else?

* Steering Wheel Centering: The description says it "Provides for spot-on steering alignment." How does it do this? Does it physically change the steering wheel alignment?

Many thanks in advance for any answers.

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Old 02-09-2012, 04:05 PM   #2
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Originally Posted by MarineHawk View Post
I'm going to get one I think, since I run 35s, but have a couple of questions:

* Adjusting Shift Points: People have talked on here about how you can adjust shift points. The description online (AEV Conversions 30406007AB - AEV ProCal Module for 07-12 Jeep® Wrangler & Wrangler Unlimited JK - Quadratec) says that it can, among other things (i) recalibrate speedometer/odometer when you change tires; and (ii) "Axle gear ratio recalibration (Resets automatic transmission shift points to maximize the benefits of an axle gear ratio change)." Does that mean that you can only adjust your shift points if you regear? If not, does it adjust shift points based on tire size or something else?

* Steering Wheel Centering: The description says it "Provides for spot-on steering alignment." How does it do this? Does it physically change the steering wheel alignment?

Many thanks in advance for any answers.
You have to regear to change the shift points. It simply adjusts settings in your Jeep's computer to the new gear ratio.

You still have to manually align your steering wheel. The Procal tells you where the steering is via the turn signal lamps. When you get it dead center, both turn signals and the highbeam light will flash.

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Old 02-09-2012, 04:13 PM   #3
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Quote:
Originally Posted by kbwwolf

You have to regear to change the shift points. It simply adjusts settings in your Jeep's computer to the new gear ratio.

You still have to manually align your steering wheel. The Procal tells you where the steering is via the turn signal lamps. When you get it dead center, both turn signals and the highbeam light will flash.
That's awesome. Took us 2 attempts to recenter my steering, not bad I guess.
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Old 02-09-2012, 04:19 PM   #4
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That's awesome. Took us 2 attempts to recenter my steering, not bad I guess.
After those shock bolts, easy re-centering was deserved.
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Old 02-09-2012, 04:23 PM   #5
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Quote:
Originally Posted by kbwwolf

After those shock bolts, easy re-centering was deserved.
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Old 02-09-2012, 04:51 PM   #6
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Thanks kbbwolf. Okay, dumb question coming: How to you manually align your steering wheel?
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Old 02-09-2012, 04:54 PM   #7
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Also, just to clarify, the ProCal won't affect how your vehicle drives (shift points or anything else) at all in the absense of regearing? It just changes your odometer and speedo readings?
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Old 02-09-2012, 05:07 PM   #8
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The description online (AEV Conversions 30406007AB - AEV ProCal Module for 07-12 Jeep® Wrangler & Wrangler Unlimited JK - Quadratec) says that it can, among other things (i) recalibrate speedometer/odometer when you change tires; and (ii) "Axle gear ratio recalibration (Resets automatic transmission shift points to maximize the benefits of an axle gear ratio change)." Does that mean that you can only adjust your shift points if you regear? If not, does it adjust shift points based on tire size or something else?
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Also, just to clarify, the ProCal won't affect how your vehicle drives (shift points or anything else) at all in the absense of regearing? It just changes your odometer and speedo readings?
As I understand it, no, a regear is not necessary to adjust shift points with a ProCal. In fact, not getting a regear but using a ProCal to "tell" the Jeep that you did is a way to (sort of) simulate a regear electronically.

Basically, use the ProCal to tell your jeep that you've got really deep gears even when you don't. For example, tell the jeep you've got 5.38s even though you've got 3.73s. The consequence (at least pre-2012) as I understand it is that the Jeep's computer will allow you to spin much higher RPMs before shifting--after all, if you really did have 5.38s and the jeep kept it's old RPM shift points you'd run out of transmission gears by the time you got up to speed.

There was somebody on here a while ago with a 3.8 jeep and an auto trans that did exactly that. What they saw was that the numerically higher they told the jeep their gear ratio was, the higher and higher the jeep would allow the RPMs to go before upshifting. So (and I'm making these numbers up) where they typically upshifted at around 2200 RPMs and 40 mph under normal conditions, they would instead do that same upshift when they were at 2500 RPMs and 47 mph after "fooling" their computer with a ProCal.

You basically hang on to transmission gears a little longer before the upshifts, yielding higher RPMs and therefore more power. One of you 2012ers out there with a ProCal ought to try it (*cough* *cough* kbbwolf . . . .)
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Old 02-09-2012, 05:12 PM   #9
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Thanks kbbwolf. Okay, dumb question coming: How to you manually align your steering wheel?
See the section "Centering Your Steering Wheel."

Very easy.

Project-JK.com - Jeep JK Wrangler Resource » Basic Do-it-Yourself Jeep JK Wrangler Front End Alignment
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Old 02-09-2012, 05:13 PM   #10
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One of you 2012ers out there with a ProCal ought to try it (*cough* *cough* kbbwolf . . . .)
I'd have tried it by now...except I've got a manual.
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Old 02-09-2012, 05:20 PM   #11
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Quote:
Originally Posted by kbwwolf

I'd have tried it by now...except I've got a manual.
Bam
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Old 02-09-2012, 05:22 PM   #12
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Bam
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Old 02-09-2012, 05:28 PM   #13
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Hmmm, I might be bored this weekend...

Football being over and all.
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Old 02-09-2012, 06:29 PM   #14
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I'd have tried it by now...except I've got a manual.
Excellent. All us REAL jeepers do . . . .
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Old 02-09-2012, 06:31 PM   #15
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Excellent. All us REAL jeepers do . . . .
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Old 02-09-2012, 06:34 PM   #16
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Excellent. All us REAL jeepers do . . . .
Wow.

You guys suck.
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Old 02-09-2012, 06:35 PM   #17
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Excellent. All us REAL jeepers do . . . .
I expect Jimbo at any moment.
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Old 02-09-2012, 06:43 PM   #18
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I expect Jimbo at any moment.
Me too :P
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Old 02-09-2012, 06:45 PM   #19
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This will be difficult, but


Quote:
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Excellent. All us REAL jeepers do . . . .
Quote:
Originally Posted by kjeeper10 View Post

--FORGIVE THEM FATHER-FOR THEY KNOW NOT OF WHAT THEY SPEAK---






Quote:
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I expect Jimbo at any moment.
-Heh Heh smart man !

JIMBO
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Old 02-09-2012, 06:45 PM   #20
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Wow.

You guys suck.
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Old 02-09-2012, 06:46 PM   #21
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This will be difficult, but

--FORGIVE THEM FATHER-FOR THEY KNOW NOT OF WHAT THEY SPEAK---

-Heh Heh smart man !

JIMBO
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Old 02-09-2012, 06:55 PM   #22
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This will be difficult, but


--FORGIVE THEM FATHER-FOR THEY KNOW NOT OF WHAT THEY SPEAK---


-Heh Heh smart man !

JIMBO



Just like a genie...rub the Trail Rated logo, and BAM! Jimbo appears.
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Old 02-09-2012, 06:59 PM   #23
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It's all good, I'm just jealous. Thought I'd give it a try.
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Old 02-09-2012, 07:00 PM   #24
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It's all good, I'm just jealous. Thought I'd give it a try.
Jealous of what?
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Old 02-09-2012, 07:04 PM   #25
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Heh Heh, probably jealous that anybody would be rubbing my "Trail Rated Badge"-

Hard to say !

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Old 02-09-2012, 07:07 PM   #26
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Oh my. So many directions I could go with this...
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Old 02-09-2012, 07:11 PM   #27
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I think I'll just bite my tongue, shake my head & say jealous of your stick?
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Old 02-09-2012, 07:25 PM   #28
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I think I'll just bite my tongue, shake my head & say jealous of your stick?
Ah...but there are advantages and disadvantages to both. All comes down to personal preference.

One advantage for your Jeep: you can try the Procal shift-point thing, and I can't.
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Old 02-09-2012, 07:27 PM   #29
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Heh Heh, probably jealous that anybody would be rubbing my "Trail Rated Badge"-

Hard to say !

JIMBO

Quote:
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I think I'll just bite my tongue, shake my head & say jealous of your stick?
Glad to see y'all kept it R-rated, at least.
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Old 02-09-2012, 07:33 PM   #30
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I will totally mess with it this weekend - what should I do? Write down the rpms he shifts at now, then reprogram with the procal & track them again? In all honesty I haven't looked into what the procal can do here, so I have no idea and haven't even looked at the directions for this part. I don't wanna do that then have everyone questioning my (lack of) science so speak now...

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