Ford F550 Speed Limit remove
Thread Starter
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5th Gear
Joined: Mar 2024
Posts: 5
Likes: 0
Ford F550 Speed Limit remove
Hello everyone,
Does anyone know how to remove the speed limiter (130 km/h) set on the Ford F550?
I've tried changing some parameters using the latest version of FORScan. Even after successfully writing the parameters, the vehicle is still restricted to 130 km/h.
Here's what I've done so far:
Does anyone know how to remove the speed limiter (130 km/h) set on the Ford F550?
I've tried changing some parameters using the latest version of FORScan. Even after successfully writing the parameters, the vehicle is still restricted to 130 km/h.
Here's what I've done so far:
- In the PCM, the speed limiter is set to 254, which should mean no speed limit is set. There are also options like ASL and ISL, both currently set to "less ASL" and "less ISL" features.
- In the TCM, there's a speed limiter option where 1 indicates no speed limit. I've tried this as well, but with no success.
Cargo Master
Joined: Apr 2003
Posts: 2,059
Likes: 426
From: Too close to Houston
Laughing Gas
Joined: Jul 2011
Posts: 810
Likes: 494
Hello everyone,
Does anyone know how to remove the speed limiter (130 km/h) set on the Ford F550?
I've tried changing some parameters using the latest version of FORScan. Even after successfully writing the parameters, the vehicle is still restricted to 130 km/h.
Here's what I've done so far:
Does anyone know how to remove the speed limiter (130 km/h) set on the Ford F550?
I've tried changing some parameters using the latest version of FORScan. Even after successfully writing the parameters, the vehicle is still restricted to 130 km/h.
Here's what I've done so far:
- In the PCM, the speed limiter is set to 254, which should mean no speed limit is set. There are also options like ASL and ISL, both currently set to "less ASL" and "less ISL" features.
- In the TCM, there's a speed limiter option where 1 indicates no speed limit. I've tried this as well, but with no success.
ETA - here's the link https://www.fordtremor.com/threads/speed-limiter-locked-to-120km-h-76mph-wtf.14637/
.
Mountain Pass
Joined: Dec 2020
Posts: 207
Likes: 171
Hello everyone,
Does anyone know how to remove the speed limiter (130 km/h) set on the Ford F550?
I've tried changing some parameters using the latest version of FORScan. Even after successfully writing the parameters, the vehicle is still restricted to 130 km/h.
Here's what I've done so far:
Does anyone know how to remove the speed limiter (130 km/h) set on the Ford F550?
I've tried changing some parameters using the latest version of FORScan. Even after successfully writing the parameters, the vehicle is still restricted to 130 km/h.
Here's what I've done so far:
- In the PCM, the speed limiter is set to 254, which should mean no speed limit is set. There are also options like ASL and ISL, both currently set to "less ASL" and "less ISL" features.
- In the TCM, there's a speed limiter option where 1 indicates no speed limit. I've tried this as well, but with no success.
Lead Driver
Joined: Jun 2006
Posts: 5,690
Likes: 1,010
From: Near Yosemite CA
What HP tuner did you get? I have a '22 F550, been waiting for the banks derringer to become available to have a little more oomph and top end on the rare occasion.
Mountain Pass
Joined: Dec 2020
Posts: 207
Likes: 171
I have the MPVI2 Have to check HP Tuners website to see what's compatible with the '22, I have the 7.3, assuming you are diesel?
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Lead Driver
Joined: Jun 2006
Posts: 5,690
Likes: 1,010
From: Near Yosemite CA
Yessir, been happy with it so far, but having the TQ/HP choked, and the speed limiter, it's terrible going up the mtns here... coming from a 2015 ram 3500/C it was a bit of a disappointment after everyone hyped me on the 6.7, little did I know they cut the F450/550 ratings..
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Mountain Pass
Joined: Dec 2020
Posts: 207
Likes: 171
Yessir, been happy with it so far, but having the TQ/HP choked, and the speed limiter, it's terrible going up the mtns here... coming from a 2015 ram 3500/C it was a bit of a disappointment after everyone hyped me on the 6.7, little did I know they cut the F450/550 ratings..
Cargo Master
Joined: Apr 2018
Posts: 2,413
Likes: 1,124
Hello everyone,
Does anyone know how to remove the speed limiter (130 km/h) set on the Ford F550?
I've tried changing some parameters using the latest version of FORScan. Even after successfully writing the parameters, the vehicle is still restricted to 130 km/h.
Here's what I've done so far:
Does anyone know how to remove the speed limiter (130 km/h) set on the Ford F550?
I've tried changing some parameters using the latest version of FORScan. Even after successfully writing the parameters, the vehicle is still restricted to 130 km/h.
Here's what I've done so far:
- In the PCM, the speed limiter is set to 254, which should mean no speed limit is set. There are also options like ASL and ISL, both currently set to "less ASL" and "less ISL" features.
- In the TCM, there's a speed limiter option where 1 indicates no speed limit. I've tried this as well, but with no success.
Have you tried manipulating the rear end ratio? Granite it would throw your speedometer out of whack, but you may be able to get a few more miles out of it.
550's come with 4.88, 430, and 4.10 gears. Assuming yours is a 19.5 gvw and most likely has 4.88, perhaps you can set it to 4.10
Shot in the dark, then I think your next hurdle will be engine RPMs. Peak power is around 2,600 RPM so I remember correctly, cruising about 80 is I want to say 2,300.
Just thinking out loud, Even if you are able to remove the speed limit, you may not have enough gusto to move a truck of this size with a load anyways.
Thread Starter
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5th Gear
Joined: Mar 2024
Posts: 5
Likes: 0
I can't help you directly nor what I advise removing it but to each your own, I'll be the last one to be the on the safety board.
Have you tried manipulating the rear end ratio? Granite it would throw your speedometer out of whack, but you may be able to get a few more miles out of it.
550's come with 4.88, 430, and 4.10 gears. Assuming yours is a 19.5 gvw and most likely has 4.88, perhaps you can set it to 4.10
Shot in the dark, then I think your next hurdle will be engine RPMs. Peak power is around 2,600 RPM so I remember correctly, cruising about 80 is I want to say 2,300.
Just thinking out loud, Even if you are able to remove the speed limit, you may not have enough gusto to move a truck of this size with a load anyways.
Have you tried manipulating the rear end ratio? Granite it would throw your speedometer out of whack, but you may be able to get a few more miles out of it.
550's come with 4.88, 430, and 4.10 gears. Assuming yours is a 19.5 gvw and most likely has 4.88, perhaps you can set it to 4.10
Shot in the dark, then I think your next hurdle will be engine RPMs. Peak power is around 2,600 RPM so I remember correctly, cruising about 80 is I want to say 2,300.
Just thinking out loud, Even if you are able to remove the speed limit, you may not have enough gusto to move a truck of this size with a load anyways.
Thread Starter
|
5th Gear
Joined: Mar 2024
Posts: 5
Likes: 0
I tried to change the settings that mentioned about the speed limiters. But no change
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