Speed?

[Questions]

Just curious, but what do you get for top end speed for a base Spyder right out of the box? Anyone max one out?

 

[wyliec]

Just curious, but what do you get for top end speed for a base Spyder right out of the box? Anyone max one out?

Check it out:
http://www.spyderlovers.com/forums/showthread.php?t=22446&highlight=top+speed

Looks like 132 mph on the RS/GS.

 

[Bob Denman]

Nahhh.... you let the unitiated walk by and glance at the Speedo and go, "200? Wow!"
Top speed; while fun while sitting around chewing on a topic, isn't a real practical measure of these critters... How often do ANY of us pin our ears back and wring things out in a WFO run? If we did, our mail would be forwarded to the local jails for sure! :shocked:

 

[boborgera]

118 MPH, And that's on a 08 GS with a strait 3 mile run.

 

[Blue Star]

Just curious, but what do you get for top end speed for a base Spyder right out of the box? Anyone max one out?

The speedometer says 200, but I never go over the posted speed limit :roflblack: My top speed was 101 before I slowed down. The thought of a ticket was too scary, but I could have gone a bit faster just don't know how much faster.

 

[Brunswick]

The analog speedo reads to 200 because if you trip it to register in KM/Hr, you can get close to that (note: the analog speedo is accurate for either MPH or KPH, depending on what you ahve it set for).

 

[SethO]

130 on the speedo so 125ish in real life. wind resistance is what the issue is, if the spyder had 130 hp to the tire instead of the 92 it would not have this problem. redline in 5th should be around 146mph according to some math wizz people on here. Mine does the slightly below the league minimum to about 105 in 4th before you notice the wind starting to really effect you, it redlines at 114 in 4th btw.

 

[Motavar]

The cap is definately not 110mph like they say.

Rumor has it that someone took my Phantom on an "unknown highway in NJ" and reached 124 mph before it was backed off for safety reasons*.

* If there was more distance, safer situation (no traffic, wasn't commuter time, etc,etc).. I'm guessing the driver could have gotten a few extra mph out of her. At that speed the driver wasn't watching the speed but what was ahead... so the driver didn't notice the speed until just before backing off... at least that is the rumor.

Wait till I catch the hooligan who used my Phantom...

 

[Bootie]

Top Speed

You guys are turning an easy problem into a difficult one. Take your scoot out and run it in 5th gear at 5000 rpm. Mine goes 67mph at 5000 rpm. (Notice that these speeds are legal) Then if you use a redline of 9000rpm your top speed is 67 x 9000/5000 or 120.6 mph. If you go to 10,000 rpm then the top speed is 67 x 2 or 134mph. Unless your clutch is slipping or your belt doesn't have any teeth, these numbers are fixed. This works because the entire driveline is locked. Then number of rear wheel revolutions is fixed to the number of engine rpms. In our case, the ratio of speed/rpms is 67/5000 or 0.0134. All you need do is multiply your rpms by 0.0134 and you will have the resulting speed. It does not matter whether you are going up hill or down. RPMS TO SPEED IS FIXED.
Your ratio may be different depending on your rear tire diameter and possibly other factors but once determined it will not vary.
To go 145mph you would need to go to 10,820rpm. This is way above redline unless you have tinkered with your engine settings.
Also note that your scoot might not get to 9000rpm due to wind resistance from that large frontal area. But, again, rpm/speed doesn't vary.:lecturef_smilie:
I think Scotty will agree with me:bowdown:

 

[NancysToy]

I think Scotty will agree with me:bowdown:

Yes and no. The theoretical speed is strictly a calculation, based on rpm, gear ratios, and the rolling diameter of the tire. In theory, then, a Spyder at 10,000 rpm would go twice the speed as at 5,000 rpm. In reality, the power available to attain maximum rpm at top speed, in top gear, is usually lacking. There is seldom enough horsepower to overcome the drag (which increases as a function of the square of the speed), and reach redline in high gear. In other words, "Your results may vary."

 

[Bootie]

Speed

Yes and no. The theoretical speed is strictly a calculation, based on rpm, gear ratios, and the rolling diameter of the tire. In theory, then, a Spyder at 10,000 rpm would go twice the speed as at 5,000 rpm. In reality, the power available to attain maximum rpm at top speed, in top gear, is usually lacking. There is seldom enough horsepower to overcome the drag (which increases as a function of the square of the speed), and reach redline in high gear. In other words, "Your results may vary."

Scotty, you are the most obstinate, cantankerous and argumentative person I ever met (but I always enjoy our "discussions"). The results will NOT vary. I still say the ratio of speed to rpms, ONCE DETERMINED, is fixed. If you can achieve 5000rpm in 5th gear then it doesn't matter whether the wind is blowing or not. 5000 rpm = 67mph, period (in my case. Yours may be different but still fixed unless something is slipping). I agree that the top speed may vary depending on conditions but if you can achieve 9000rpm then your speed will be 120.6mph (or whatever your ratio dictates).:lecturef_smilie:

 

[spyderrock]

the answer is simple

Fast enough to kill you dead !!!!! im not about speed it's the experience that maters

 

[NancysToy]

Scotty, you are the most obstinate, cantankerous and argumentative person I ever met (but I always enjoy our "discussions"). The results will NOT vary. I still say the ratio of speed to rpms, ONCE DETERMINED, is fixed. If you can achieve 5000rpm in 5th gear then it doesn't matter whether the wind is blowing or not. 5000 rpm = 67mph, period (in my case. Yours may be different but still fixed unless something is slipping). I agree that the top speed may vary depending on conditions but if you can achieve 9000rpm then your speed will be 120.6mph (or whatever your ratio dictates).:lecturef_smilie:

We are on the same page. The calculation gives the theoretical top speed. That remains a constant as long as the gear ratio and tire size remain the same. The actual top speed is variable, depending on horsepower, altitude, windshield size, rider weight, etc. The difference lies in the inability of the machine to reach the calculated rpm under real conditions. Just trying to point out the difference. Still friends? :roflblack:

 

[Bootie]

Speed

We are on the same page. The calculation gives the theoretical top speed. That remains a constant as long as the gear ratio and tire size remain the same. The actual top speed is variable, depending on horsepower, altitude, windshield size, rider weight, etc. The difference lies in the inability of the machine to reach the calculated rpm under real conditions. Just trying to point out the difference. Still friends? :roflblack:

Yup, still friends :clapI'll bet Nancy agrees with me about the cantankerousness). I just wonder about these guys that are claiming 145mph, etc. Ain't possible in my book without tinkering with the engine. I would suspect that even Doc's turbo-Spyder won't go over 120; It'll just get there faster.:2thumbs:

 

[AMTJIM]

My spyder is a skeleton of what it was and still tickles 120.

 

[AMTJIM]

145 may have been possible with a turbo and one of the larger (30~31 tooth?) pulleys from Mels Monster Garage.

 

[boborgera]

Yup, still friends :clapI'll bet Nancy agrees with me about the cantankerousness). I just wonder about these guys that are claiming 145mph, etc.

I think Lamonster summed it up quite well then he said;About those speed claims.
Anything is possible if you don't know what your taking about.:roflblack:

 

[McGone]

Speed

The dyne tests charts showed the horsepower leveled off and then dropped above 9100 rpm, so the engine would not have enough horsepower to increase the speed above this.
:doorag:

 

[TheKid]

120mph,145mph does it really matter? Everyone knows that at 88mph the Flux Compositor kicks in and sends you through time, duh!

 

[Riot]

130 spedo reading 08 GS, ACTUAL speed was 122, that was over a 12 mile strech, mostly flat. paced by 3 other riders and using a gps. all said 122 is what i was runnin at.