Speed Limiter ?s (want real answers, not lectures) - Page 2 - Ford Truck Enthusiasts Forums



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Speed Limiter ?s (want real answers, not lectures)

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  #16  
Old 03-18-2010, 05:11 PM
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So its the ECC that controls the limiter? Its not the Speedo(PSOM?)?
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  #17  
Old 03-18-2010, 05:26 PM
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Originally Posted by hav24wheel View Post
You mean to tell me tires are speed rated??
Yes they are. Check out Tire Rack. They tell what speed each letter stands for.
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  #18  
Old 03-18-2010, 05:31 PM
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Originally Posted by BigBlueOx View Post
Yes they are. Check out Tire Rack. They tell what speed each letter stands for.
Lmao! I was joking when I said that... I work at a tire wholesale whse, so I'm well aware of speed and load ratings...
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  #19  
Old 03-18-2010, 05:35 PM
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Originally Posted by hav24wheel View Post
So its the ECC that controls the limiter? Its not the Speedo(PSOM?)?
I have the Superlift speed corection box in my truck and it has a switch so you could choose from 2 different tire settings. So say you set on setting to your normal speed and set the other setting to a lot slower speed so when you wanted to go faster than 95 you could switch over to your slower output setting so the PCM thinks your going slower than you actually are. IDK if this would work but someone else might know. Just a thought.
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  #20  
Old 03-18-2010, 05:38 PM
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Lmao! I was joking when I said that... I work at a tire wholesale whse, so I'm well aware of speed and load ratings...
Oops I didn't catch the sarcasm there. My bad. Lol
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  #21  
Old 03-18-2010, 05:48 PM
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Hmm, I wonder if that would work.....
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  #22  
Old 03-18-2010, 10:31 PM
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Originally Posted by hav24wheel View Post
So its the ECC that controls the limiter?
Yeah it gets a parallel input from the VSS.. the PSOM is just for the speedo. And you need to know what the EEC box code is to figure out what tuners or chips are compatable, there is usually a label on the EEC connector with that and you may also be able to get it from the calibration code on the drivers door decal.
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  #23  
Old 03-19-2010, 02:03 AM
DJdemon6696 DJdemon6696 is offline
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why do you need to go that fast in a truck ??

:P i can do 120 but i **** my pants everytime i do

long live manuals and old NON computer transmissions!
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  #24  
Old 03-19-2010, 06:41 AM
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Thanks, Conanski.




DJdemon6696, its not that I NEED to, its more of a want to. Let's just leave it at that.
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  #25  
Old 03-19-2010, 11:26 AM
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I cannot imagine trying to navigate my 5ton skateboard at 100+ on any West Virginia road lol. Autobahn or salt flat...maybe.
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  #26  
Old 03-19-2010, 11:39 AM
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Quote:
Originally Posted by Conanski View Post
Yeah it gets a parallel input from the VSS.. the PSOM is just for the speedo.
That may be true with the 4R70W transmission but he has an E4OD transmission and the PCM computer gets ALL of its speed information from the PSOM.
The E4OD does not have an Output Shaft Speed Sensor like the 4R70W does.
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  #27  
Old 03-19-2010, 11:43 AM
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So. Is it possible than to "break" the signal from the PSOM to the PCM to achieve my goal?
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  #28  
Old 03-19-2010, 11:49 AM
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Maybe but you will have very hard shifting and I am not sure if it will go into OD or not.
The transmission oil pressure will go max and that is why it will do the hard shifting.
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  #29  
Old 03-19-2010, 11:55 AM
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So, it will toss the trans into "fail safe" mode than... I don't know if I would want that, as it shifts REAL hard when that happens. I have a shift kit in there, and got the trans hot once playin in the snow, when it went into fail safe, I thought the dash was going to fly into my lap when it shifted.
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  #30  
Old 03-19-2010, 12:20 PM
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If you really want to go that fast and maybe kill yourself you could make a simple devide by two circuit and put it between the PSOM and the PCM.

Here is the signal:


/
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