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post #1 of 11 Old 09-28-2007, 04:29 AM Thread Starter
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Tru Speed function?

lookin at the superlift truspeed speedo recalibrator and was wondering....does it only help the speedo to be corrected or does it actually do more like with trans shift points and tq converter lockup from larger tires thanks:drive:


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post #2 of 11 Old 09-28-2007, 01:07 PM
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It corrects the computer so the speedo and shift points and everything else is corrected.

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post #3 of 11 Old 11-02-2007, 07:15 AM
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Any other way to correct it? And will it play nice with chips/tuners? (I just got nailed doing 80 in a 65)
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post #4 of 11 Old 11-02-2007, 07:21 AM
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from what i have seen their is no other product as good as this to correct the speedo. superchips has the tru-speed but its a programmer type, and can only correct speedo/gears on the 05+ SD..... ill be using the Tru-speed once i get gears its the best option out their
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post #5 of 11 Old 11-02-2007, 07:46 AM
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shoot me a price would ya, model 33001 for an 01 excursion diesel.
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post #6 of 11 Old 11-02-2007, 07:47 AM
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I thought the SCT would recalibrate the speedo. Both the sct and the Edge I took off both claimed to do so. Am I missing something.

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post #7 of 11 Old 12-14-2007, 09:10 AM
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from what i have seen their is no other product as good as this to correct the speedo. superchips has the tru-speed but its a programmer type, and can only correct speedo/gears on the 05+ SD..... ill be using the Tru-speed once i get gears its the best option out their
I think you mean superlift not superchips right?

Quote:
I thought the SCT would recalibrate the speedo. Both the sct and the Edge I took off both claimed to do so. Am I missing something.
I thought the same thing on my truck especially since the tuner company said it would... well it did not...

As far as I know 99-04 you can only use an inline speed correction device such as the Superlift truspeed Superlift www.superlift.com or the Merlin controls speed wizard Merlin Controls Electronic Control Systems / FMDK Home Page or Speed Wizard Speedometer Correction Now on 05 up... people are saying that the programmers will adjust the speedometer... but I am not sure I beleive all that just yet.

I have done tons of research on this part of lifting a truck, if anybody has questions or anything just email me merc45@gmail.com

Ken
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post #8 of 11 Old 12-15-2007, 05:12 PM
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Get a GPS and it will tell you the true speed all the time, mine is off and everything is standard on it, My GM was right on the button. The Ford marks 100KPH and realy does 58.5KPH its not much but its 1 mile every 60 miles off.

2005, 6.0L, 6 Spd Std, 3.73 Rear End, F250SD, Extended Cab, 4 x 4 Long Bed. 2008 extension mirrors. GPS/TV/DVD/CD/Rear Cam/Radio installed, Max Energy programer by Hypertech, and Fuel Pressure Gauge. ScanGaugeII for 60 plus XGauges, and MPG. ELC Cat EC-1 Coolant, Pull a 39ft 15500Lbs 5th Wheel Camper Trailer. Mileage Avg is 20MPG, and pulling 12.6MPG.
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post #9 of 11 Old 12-15-2007, 05:18 PM
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Quote:
Originally Posted by caissiel View Post
Get a GPS and it will tell you the true speed all the time, mine is off and everything is standard on it, My GM was right on the button. The Ford marks 100KPH and realy does 58.5KPH its not much but its 1 mile every 60 miles off.
I agree that a GPS is the best way to read the speed of the automobile, however some people don't like to turn them on every time they take their truck for a ride, or leave them in their truck for that matter. Also what if somebody borrows it and you need to know your speed - for me personally I just would rather have a corrected speedometer - but hey thats just me.

Based on the research I have done it looks like the vehicle manufacers can have speed readings that can be off by a little. Usually they make the speedometer read faster then what you are really going... why? So they (the automobile manufacter) cannot be sued when you get a ticket for speeding.

Now... one thing I am confused about... You said your ford marked 100KPH on the speedometer and you are really going 58.5KPH... well something does not add up here because thats almost off by 2 times.

No way can it be off that bad if it is a stock truck.

Kenny
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post #10 of 11 Old 12-15-2007, 05:45 PM
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Sorry? its a typo
I meant 98.5 KPH

2005, 6.0L, 6 Spd Std, 3.73 Rear End, F250SD, Extended Cab, 4 x 4 Long Bed. 2008 extension mirrors. GPS/TV/DVD/CD/Rear Cam/Radio installed, Max Energy programer by Hypertech, and Fuel Pressure Gauge. ScanGaugeII for 60 plus XGauges, and MPG. ELC Cat EC-1 Coolant, Pull a 39ft 15500Lbs 5th Wheel Camper Trailer. Mileage Avg is 20MPG, and pulling 12.6MPG.
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