Speedo Calibration

[captain jack]

I am fed up of being told that I am not maintaining the speed limit when my speedo is telling me that I am. I am therefore going to calibrate it. I will probably fit a "Speedo Healer" but I am looking for advice from anyone who has fitted one or does anyone have another way of doing it - will a dynotune do it?. BTW I am taking advanced lessons & this is applicable only to that, but it will be nice to know my actual speed instead of a close approximation.

 

[biker1059]

Tuneboy will do it. I have mine set with my GPS. When you do this with Tuneboy your mileage on the odo is off.

 

[64Herald]

biker1059 do you mean that if you correct the speed the odometer is now off, but if you leave the spped off the odometer is correct

 

[xhdskip]

Thats exactly what he means.

 

[HellFire]

Sounds just like a corporation protecting it's ass don't it?
Build in a 7% power reduction intentionally, then set the speedo to fake you into thinking you're haulin' ass when you aren't. "But we have to keep that ODO accurate, don't want to get sued by a seller if the bike depreciates faster because the miles are high, and not by a buyer because the bike has more miles than it shows."
It's like they are saying .... "We think the public is stupid, they know we're thinking it ... we just don't give a **** either way ... 'cause they're stupid".

 

[RatBoy]

Sounds just like a corporation protecting it's ass don't it?
Build in a 7% power reduction intentionally, then set the speedo to fake you into thinking you're haulin' ass when you aren't.

Hellfire,
Not a 7% power reduction, a 7% speed error. The speedo read 7% slower that actual speed over land.

Two solutions to the problem without screwing with your ecm (via Tuneboy to correct the speed).

(1) Some quick math will tell you approximately how fast you're going.

The error really doesn't make significant impact until you hit 50mph (error 3.5 mph)... going 80 mph the error is 5.6 mph). So if you going 50+ ride +5 on the speedo and you're certainly within the range that you're expecting.

(2) If you're passing everyone... Slow down. If everyone is passing you... Speed up.

The meaning of my smart@ss answer... ride with the flow of traffic.
If there's no one else on the road, it doesn't matter.

-----------------
Triumph retarded the timing in the stock version because they are protecting their collective arses. You can get all of the power back via Tuneboy, and apparently GiPro.

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I, personally, tried the speedo calibration and realized that the odometer was more important to me because I gauge my refuel points by how far/how fast I'm traveling.

I don't trust the idiot light for the fuel.

So, I backed out the speedo correction via Tuneboy and I'm sticking to the 'quick math' solution proposed above.

 

[HellFire]

Hellfire,
Not a 7% power reduction, a 7% speed error. The speedo read 7% slower that actual speed over land.

Two solutions to the problem without screwing with your ecm (via Tuneboy to correct the speed).

(1) Some quick math will tell you approximately how fast you're going.

The error really doesn't make significant impact until you hit 50mph (error 3.5 mph)... going 80 mph the error is 5.6 mph). So if you going 50+ ride +5 on the speedo and you're certainly within the range that you're expecting.

(2) If you're passing everyone... Slow down. If everyone is passing you... Speed up.

The meaning of my smart@ss answer... ride with the flow of traffic.
If there's no one else on the road, it doesn't matter.

-----------------
Triumph retarded the timing in the stock version because they are protecting their collective arses. You can get all of the power back via Tuneboy, and apparently GiPro.

----------------
I, personally, tried the speedo calibration and realized that the odometer was more important to me because I gauge my refuel points by how far/how fast I'm traveling.

I don't trust the idiot light for the fuel.

So, I backed out the speedo correction via Tuneboy and I'm sticking to the 'quick math' solution proposed above.

You do know about the 7% built in power reduction in 1-3 gears don't you? I was refering to all the built in "idiot" features Triumph has to protect the weak links of society.

 

[biker1059]

Yes, I lowered my speed 6%, so at 94 miles I have actually traveled 100 miles. A small price to pay but I know when my speedo says 70 Im going 70

 

[RatBoy]

You do know about the 7% built in power reduction in 1-3 gears don't you? I was refering to all the built in "idiot" features Triumph has to protect the weak links of society.

Yeah I do, and I fixed the maps to accomodate...
I was attempting to be clear about what I trying to describe in my little diatribe because he was talking about the speedo calibration and not the power retard from the factory.

No worries...

 

[RatBoy]

Yes, I lowered my speed 6%, so at 94 miles I have actually traveled 100 miles. A small price to pay but I know when my speedo says 70 Im going 70

Perhaps, until you go to sell it and someone gets pissy when they find out that the odometer is off from the condition of the bike.

I can envision having "law enforcement" knocking on the door and taking me off in cuffs because 'rolling back the odometer' is against the law, and technically that is what's happening. That's the other reason that I changed my back and now live with the speedo difference.

But, we all grown men and women, and, basically, we are breaking the law every time we speed, or roll through that stop sign near our house... So to each their own...