Can you top this

[Trickie Dick]

Newbie on the other forum posted this...

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Posted Today, 02:30 PM
Neez, on 26 March 2011 - 03:25 PM, said:
You need to change your speedometer over.You're reading KM/h.



nope,...mines on mph and I had mine up to 140 MPH and had more to go but, had to back off and wait on all my HOG friends....


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[docdoru]

Maybe if he's running go-kart tires.

[SilverFox1]

Man,,, that's what I want!!

[boborgera]

I seen that earlier today, All i can say is ;Yea Sure.

[Blue Star]

Newbie on the other forum posted this...

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Posted Today, 02:30 PM
Neez, on 26 March 2011 - 03:25 PM, said:
You need to change your speedometer over.You're reading KM/h.



nope,...mines on mph and I had mine up to 140 MPH and had more to go but, had to back off and wait on all my HOG friends....


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I got that fast too, many times. Oh wait, there is a 1 in front of that 40

[Neez]

I was trying to tell the noob, without being rude, that nobody was buying that fairy tale. But that's his story and he's stickin' to it.

[patdcop]

Shortly after the kawasaki concours 1400 came out there were several forum memebers talking about their top speed of 168 to 174mph. Well,,,,,,,,,,,,,At least till they found out the bike had a computer nanny that would kick in at 149mph and would not let the bike go any faster.

[arntufun]

That guy probably has a bridge somewhere for sale as well.

[Bob Denman]

Yeah.... with a 140mph speed limit sign posted on it! and I STILL haven't figured out the whole mph/kph swithover routine yet! I thought that it might be fun to scare the bejeesus out of the Missus when she looks over my shoulder and sees something "North of 90" indicated...

[FANG]

Probably looking at the speedo with the wrong lenses of his bi-focals - go figure

[boborgera]

Got him beat, Hour clock = 111.4 Mileage= 16637.8 Average MPH=149.3

[Brunswick]

What is the top speed governed at: is it 110mph as I recall?
Can you defeat it? Moreover, has anyone done so and if so what is the fastest you have really gone (at a race track, of course...)

[Lone Spyder Ryder]

What is the top speed governed at: is it 110mph as I recall?
Can you defeat it? Moreover, has anyone done so and if so what is the fastest you have really gone (at a race track, of course...)

117 SM5 2008 On flat road going throught Nevada. From what I understand the only limiter a 10,000 rpm.

[Firefly]

117 SM5 2008 On flat road going throught Nevada. From what I understand the only limiter a 10,000 rpm.

Correct. There is NO speed limiter on the Spyder -- only the RPM limiter to save you from blowing up your engine.

I've hit 128 according to the Spyder. GPS pegs it about 4 MPH lower. Might have had just a little more to go.

Now with CHAD on I cannot break 115.

[M2Wild]

If I remember correctly someone here had a bad instrument cluster that will read very high speed and 6 digit odometer reading.

[ARtraveler]

RE: MPH/KPH for Bob Denman The switchover is very easy. Just advance the mode button till you get to the mph/kph screen. Arrow down to kph and its done. It took me about 15 seconds to change over when we went to Canada last summer. I had it up over 150 a couple of times. KPH of course.

[dltang]

What is the top speed governed at: is it 110mph as I recall?
Can you defeat it? Moreover, has anyone done so and if so what is the fastest you have really gone (at a race track, of course...)

I know for a fact that it is not 110 mph. (that's all I am going to say about that)

[Brunswick]

Correct. There is NO speed limiter on the Spyder -- only the RPM limiter to save you from blowing up your engine.

I've hit 128 according to the Spyder. GPS pegs it about 4 MPH lower. Might have had just a little more to go.

Now with CHAD on I cannot break 115.

Thanks, I didn't realize that. So does that mean if I'm accelerating hard and keeping my eyes more on the road than on the tach, I don't have to worry (at least too much) about shifting too late and damaging the engine from revving too high?

[Bob Denman]

[QUOTE=akspyderman;299710]RE: MPH/KPH for Bob Denman The switchover is very easy. Just advance the mode button till you get to the mph/kph screen. Arrow down to kph and its done...QUOTE]
Thanks! I think that I just must have missed it in that screen with all of the setup stuff... Trailer or not?? screen brightness... clock settings...
I'll take another peek in there.

[NancysToy]

Thanks, I didn't realize that. So does that mean if I'm accelerating hard and keeping my eyes more on the road than on the tach, I don't have to worry (at least too much) about shifting too late and damaging the engine from revving too high?

Yep, the rev limiter will take care of you, but it is not a good idea to rely on it. Repeated and extended use of the rev limiter can still allow detonation that will damage an engine. Get used to the sound, and keep a corner of one eye on the tach. BTW, it is difficult to reach the limiter in high gear, anyway, but you will have more need to be aware of your rpm in the lower gears.

[Bootie]

Yep, the rev limiter will take care of you, but it is not a good idea to rely on it. Repeated and extended use of the rev limiter can still allow detonation that will damage an engine. Get used to the sound, and keep a corner of one eye on the tach. BTW, it is difficult to reach the limiter in high gear, anyway, but you will have more need to be aware of your rpm in the lower gears.

Scotty, check my math on this, if you will, thanks.
This is a calculation for the theoretical top speed of the Spyder in 5th gear at 9500rpm. Rear tire is 15". Final Ratio is 2.82:1.
Here goes...
15" x pi = 47.12 inches of travel per revolution.
47.12/12 = 3.927 feet per revolution of the tire.
3.927/5280 = 0.0007437 miles per revolution of the tire.
9500rpm x 60 = 570,000 engine revolutions per hour.
570,000/2.82 = 202,128 revs of the rear wheel per hour.
202,128 x 0.0007437 = 150.33 mph Max at 9500rpm.

So the theoretical maximum speed is 150.33mph. But as Scotty said, you probably can't get it up to 9500rpm in 5th gear unless you lift the rear wheel off of the ground

[boborgera]

So the theoretical maximum speed is 150.33mph. But as Scotty said, you probably can't get it up to 9500rpm in 5th gear unless you lift the rear wheel off of the ground

Or ride in a Vacuum, No drag.

[Bootie]

Or ride in a Vacuum, No drag.

No air for the engine (or rider) to breathe

[chascarpenter1]

The fastest I've had mine was about 120 something. I really was paying more attention to the road then the speedo. Honestly after doing that and seeing a cop over the next rise (after slowing down) I realized I was being a dumb ass and will never attempt a stunt like that again.

[NancysToy]

Scotty, check my math on this, if you will, thanks.
This is a calculation for the theoretical top speed of the Spyder in 5th gear at 9500rpm. Rear tire is 15". Final Ratio is 2.82:1.
Here goes...
15" x pi = 47.12 inches of travel per revolution.
47.12/12 = 3.927 feet per revolution of the tire.
3.927/5280 = 0.0007437 miles per revolution of the tire.
9500rpm x 60 = 570,000 engine revolutions per hour.
570,000/2.82 = 202,128 revs of the rear wheel per hour.
202,128 x 0.0007437 = 150.33 mph Max at 9500rpm.

So the theoretical maximum speed is 150.33mph. But as Scotty said, you probably can't get it up to 9500rpm in 5th gear unless you lift the rear wheel off of the ground

There are a few wrinkles here. First, the wheel diameter is 15" (actually the rear whel is 14"), but the full tire diameter is 24". Unfortunately, in these calculations the rolling diameter must be used, accounting for the sidewall compression under load. I would assume a 22" rolling diameter without measuring, but more might be possible with high tire pressures and tire growth at speed.

Second, the rev limiter is set at 10,000 rpm, according to the shop manual.

Finally, 2.8:1 is just the final drive (sprocket) ratio. We also have to take into account the primary drive ratio (1.94:1) and the transmission gear ratio (5th gear = 0.96:1) into account. The overall final drive ratio thus becomes 5.25.

Given these factors, the theoretical top speed is 136 mph, but the practical maximum (depending on actual rolling tire diameter) is 125-130 mph. Add a typically optimistic speedometer, and you might see a bit more on the gauge.

24" x pi = 75.40 inches of travel per revolution.
75.40/12 = 6.28 feet per revolution of the tire.
6.28/5280 = 0.00119 miles per revolution of the tire.
10,000 rpm x 60 = 600,000 engine revolutions per hour.
600,000/5.25 = 114,286 revs of the rear wheel per hour.
114,286 x 0.00119 = 136 mph Max at 10,000 rpm.