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Jerry H.
Dodge Dakota
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5/09/2003
14:21:36
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 Subject: '00 QC 4.7 auto
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I'm a new Dakota owner and therefore an stll learning (and loving) the Dak. Here is my problem, there I am, running down I 85, and as I'm trying to pass a flock of 18 wheelers I have been stuck behind for 16 miles, my speedo hits 98 mph, BAM, its like someone shut the ignition off. I thought I had hit the cruise control or something, so I ran it up to 98 again, BAM, same thing. It runs like a deer until that point. I called my dealer and he really didn't have anything to say except that "if" it was a factory limit set, he could not legally remove it. What the hell is going on? Is there a speed governor on the Dakota? Or was he just not bright. I have done this several times and 98 is the wall. I stopped doing because I didn't know if it was harming the engine. Any ideas?
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Chris
Dodge Dakota
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5/09/2003
14:42:07
|  RE: '00 QC 4.7 auto
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welcome to teh world of speed limiters. From what I have learned on this board the automatics get 98mph while the standards get something in the 110's.
Chris
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Quadster
Dodge Dakota
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5/09/2003
15:28:06
| RE: '00 QC 4.7 auto
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Chris is right on Jerry, my 2001 QC 4.7L hits the speed limiter at 98mph. There are a couple of companies out there that will reprogram your PCM (computer) that will eliminate the speed limiter. At the same time also add performance by advancing ignition timing and remap the fuel tables. www.asechips.com is one of them and a fellow named Leach can do the 2000 model PCM. I have had three different vehicles with a speed limiter around 100mph and it does suck to hit it. Search the forums for "speed limiter" and you will find out more info.
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RaZoR1
Dodge Dakota
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5/09/2003
15:41:41
| RE: '00 QC 4.7 auto
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Here's the deal. I have the same truck as you and put on a Kenne Bell S/C. The guys at Kenne reprogrammed my computer but would not taqke off the governor. The reason is the driveline, it's not "strong" enough or balanced to go any faster safely. A bunch of BS if ya ask me..... I'm still going to get it taken off somehow. I think i may jgo the way of hypertech, that way if something does break i can plug it back in and take the governor back down to 98 for warrantee!!!!
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franlofter
Dodge Dakota
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5/09/2003
18:13:49
| RE: '00 QC 4.7 auto
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I thought that there was not a PCM flash for the 01 just the 00 and older??? Am i misinformed??
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Jeremy
Dodge Dakota
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5/09/2003
23:14:26
| RE: '00 QC 4.7 auto
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I'd have to say thats kinda strange to hear. I have a 01 4.7 auto 4x4 and i have had it up to 115 on the freeway with no sign of stopping, and i havent messed with my computer yet.
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Daksmack
Dodge Dakota
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5/10/2003
09:27:01
| RE: '00 QC 4.7 auto
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Razor is correct. The '00 QC's limit at 98mph is due to the driveshaft (aluminum) and components. BS I know but NO ONE will adjust it with a flash. It just aint happening. They will remove the 115 mph limiter though.
Our only option is to do what we have affectionatly called "keying". Just before your speedo hits the speed limiter, just turn the ignition key towards start but not completely. This will kill the speedometer and allow you to haul till your hearts content. Be carefull.
Ive been trying to find out if there is a circuit to install a switch to that would kill the speedo and still allow two hands on the wheel.
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craig
Dodge Dakota
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5/11/2003
04:01:08
| RE: '00 QC 4.7 auto
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On my home in phoenix from l.a. i got my 2.5l up to 115 (took forever to get up there) before it stopped accelerating. So yes chris, the 5-speeds are set in the 110's, 115 on my truck so i am assuming that is what all 5-speeds are set at.
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Joey
Dodge Dakota
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5/12/2003
00:19:05
| RE: '00 QC 4.7 auto
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if u wanna remove the 98 mph limit, u must also change ur driveshaft or it may break if u go faster. u have a 2 piece driveshaft. if u can replace it with the one piece from other daks, then it would be safe to remove the limiter
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Daksmack
Dodge Dakota
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5/12/2003
08:39:37
| RE: '00 QC 4.7 auto
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Looks like someone cant read. You can NOT remove the limiter. Research it and prove me wrong.
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Chris
Dodge Dakota
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5/12/2003
12:11:25
| RE: '00 QC 4.7 auto
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Alos the fact that it is a 2 piece driveshaft does not make it aluminum... my 2000 had a 2 piece steel driveshaft... OR aluminum has learned to rust recently, yes rust not coorode as in the white stuff you get on aluminum... but agian it was a 5-speed.
Chris
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02CC4.7
Dodge Dakota
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5/12/2003
13:14:46
| RE: '00 QC 4.7 auto
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I think Daksmack has about the only solution I know of that works. I have also found that you don't have to be afraid of engaging your starter when performing this hi-tech manuever. There must be some kind of safety switch, so that when the truck is running, you cannot engage the starter. Atleast thats the way it is on my 02 CC. I've turned the key all the way as if I was starting the truck, and nothing happened besides me hauling ass down I-10. I turned the key to it's original pos., and the speedo went to around 120.
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Blowen Blu
Dodge Dakota
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5/12/2003
17:16:43
| RE: '00 QC 4.7 auto
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RaZoR1
Tell me about your Ken Bell s/c.
I'm getting ready to buy one.
I have a 2000 4.7 c-c
How long have you had it?
Do you like it?
Is it all they say it is?
What truck do you have?
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ISC
Dodge Dakota
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5/13/2003
22:19:26
|  RE: '00 QC 4.7 auto
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After having my 4.7 rechiped, no problem 120+
rechiped by ASE
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Daksmack
Dodge Dakota
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5/14/2003
15:32:08
| RE: '00 QC 4.7 auto
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Its not an automatic then.
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isc
Dodge Dakota
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5/20/2003
21:16:04
| RE: '00 QC 4.7 auto
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Daksmack,
Well lets see, the sift lever is on the steering column, has a little arrow that points to PRND21 and the truck does not have a clutch pedal. I believe that makes it an automatic.
I also believe that may be you are the one that needs to do some research. For the rechipping by ASE try
www.asechips.com
Also, some of the best driveshafts are made out of aluminum.
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JustMe
Dodge Dakota
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5/21/2003
07:35:56
| RE: '00 QC 4.7 auto
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I've got an '02 QC 4x4 with the 4.7L and I got up to 110 on an airport runway before I chickened out and got off of the gas.
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Daksmack
Dodge Dakota
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5/21/2003
17:24:23
| RE: '00 QC 4.7 auto
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ISC, is your Dak a 2000?
If I remember correctly, (I could be wrong) the origional question was about a 2000 QC 4.7 auto.
Could you read it for me?
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talsbury
GenIII
5/21/2003
18:59:40
| RE: '00 QC 4.7 auto
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I Have found Dodge has a very large inconsistency in there computer programming, and the especially with the area of speed limiters. When I purchased my truck I could do 117 until the speed limiter kicked in but since having my engine rebuilt and the computer replaced with the identical part number and flash that was removed I now find myself governed at 98mph however turning the key to the start position kills all of my dash gauges but will allow to speed past my limiter well up to the limit of the Speedo but once you let go of the key hold on cause the fuels going to shut off and you right back down to the 98mph mark.
2001 CC 4.7L 4X4 one day it will be an HO
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Daksmack
Dodge Dakota
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5/21/2003
20:29:35
| RE: '00 QC 4.7 auto
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There has been discussion for a couple of years on this board about the limiters. Do a search and check.
Several ideas have been discussed away: year model, tire speed rating, # of cylinders, yakidy smakidy.
What it boils down to is the 2000 QC 4.7 has and aluminum driveshaft, it supposedly vibrates too much at high speeds. So far everyone that Ive talked to figures that is the purpose of the 98 limit.
Go ahead and call ASE see if they will do it. I know tons of peeps ready to buy one if it removes the 98 mph limit.
Dont bother calling Kenny Bell, they will remove any limit except the 98.
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chris
Dodge Dakota
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5/21/2003
22:56:30
| RE: '00 QC 4.7 auto
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I recently went on a trip with my 2001 Dak. Quad 4x4 with a 4.7 auto and burried the speedo at 120. No lie. Drove like a dream exept for the funny rear wheel hop over bumps. chris
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ISC
Dodge Dakota
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5/22/2003
08:19:54
| RE: '00 QC 4.7 auto
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I would not have replied to this if My truck was not a 2000 QC 4.7 automatic. At over 98 there is no vibrations. Check the archives and You will find more than I have told you. I forgot one thing dyno said 18hp gain with chip at rear wheels.
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Daksmack
Dodge Dakota
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5/22/2003
18:01:17
| RE: '00 QC 4.7 auto
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Well, I took your advice ISC, and looked at ASE's site. There advertising was a little vague on this subject so I e-mailed them.
Here is their reply:
"The ASE chip does raise the speed limiter to 200 MPH and also gain in performance too. On the 4.7L engine, the ASE chip provide 12-13 HP and 9-10 Torque additional. Price: $349.00 Plus S&H".
Now you can believe the 200mph thing if you wnat but, the e-mail reply is genuine. So I stand corrected and owe ISC an apology.
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ISC
Dodge Dakota
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5/22/2003
23:04:55
| RE: '00 QC 4.7 auto
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I just beleived that for a few dollars there is a safer way than playing with your key at 90+.
Dasmack, thank you for doing your research and letting everyone know there is an option. I do not think, we will ever find out why the limiter is there expect to protect us from ourselfs.
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Demon Dakota
DakotaEnthusiast
5/22/2003
23:56:02
| RE: '00 QC 4.7 auto
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There is a way to remove the speed limiter without the key or the flash...but I'll be damned if I can remember what it is. It's something made by APEXi...arghhhhhh...
I hate late night brain farts. I'll check my Maxima.org buddies and see if they remember what it is (they were the ones that told me about it in the first place).
K&N Drop in AF (CAI during summer months)
True Dual exhaust and removed third cat
HO Cams & HO Intake
FASTMAN 70mm TB
Autolite 3923 Plugs
TPS @ .76 VDC
IAT Adjuster Mod
14.52@94.2 MPH at Silver Dollar Raceway
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