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Old 11-03-2006, 04:30 AM   #1
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Default GSX-R 1000 top speed?

Just out of curiosity; for models with the 162 HP engine what limits the top speed to ~290 km/h? Is it air drag, a speed-limiter or the gearing?
Could the machine reach a higher top speed if the gearing was set somewhat higher? Not that I need or would want that, just curious. :-)
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Old 11-03-2006, 05:19 AM   #2
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Many factors rider wind road gear HP best gearing time weight Sooo many that can make a diffrence hel if you took a dump could matter. Avg stock one ( Unless you have GPS then post your mph) is 176 -182 mph. I can not say definate and Yes to all you speedo will be off so don't think what you seen on your MPH of your bike to be accurate unless you have speedo healer or GPS I am no expert just saying that is what i have seen on GPS
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Old 11-03-2006, 07:39 AM   #3
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I get an extra 5 mph boost every time I fart.
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Old 11-03-2006, 10:56 AM   #4
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Says 186 when topped out. Bike is rated at 188 by suzuki.
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Old 11-03-2006, 11:47 AM   #5
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Your digital speedometer will not read past 186
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Old 11-03-2006, 02:29 PM   #6
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Fast as I have heard GPS tested is 182.32 MPH.
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Old 11-03-2006, 02:47 PM   #7
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182.32? Must be pretty nice to measure speed to the hundredths!
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Old 11-03-2006, 06:25 PM   #8
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Default Top speed limits

You would be surprised at the few extra MPH you can gain by tucking in real well. Air resistance is the limiting factor, so get your toes, elbows ,knees, hands, everything in. Head down against the tank. Removing mirrors, lowering the front, every little trick has an effect ay ultra high speeds.

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Old 11-03-2006, 09:51 PM   #9
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Originally Posted by aares View Post
182.32? Must be pretty nice to measure speed to the hundredths!
I seen it posted in a mag. I have seen my speedo hit the magic 186 mark, don't have a GPS to varify how fast I was really going
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Old 11-03-2006, 09:52 PM   #10
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Quote:
Originally Posted by Mr645 View Post
You would be surprised at the few extra MPH you can gain by tucking in real well. Air resistance is the limiting factor, so get your toes, elbows ,knees, hands, everything in. Head down against the tank. Removing mirrors, lowering the front, every little trick has an effect ay ultra high speeds.

Jon
There was an article in one of the mags about drag on some of the bikes, the gsxr1000 did better than the zx-14 and zx-10, but was ousted by the Busa
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Old 11-04-2006, 03:49 PM   #11
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i have a friend with a 06 1000 gixxer and he said he toped out at 191mph. Well thats just what he say. I toped my k6 600 at 170mph and i have friend with the same bike which is stock he said he did 180. I have a micron slip on. Thats just what they say i dont know if its true or not.
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Old 11-04-2006, 04:06 PM   #12
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i have a friend with a 06 1000 gixxer and he said he toped out at 191mph. Well thats just what he say. I toped my k6 600 at 170mph and i have friend with the same bike which is stock he said he did 180. I have a micron slip on. Thats just what they say i dont know if its true or not.
Doesn't the speedo stop reading higher than 186?
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Old 11-04-2006, 04:21 PM   #13
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Cycle World Magazine.

2001 gsxr1000
144.3 rear wheel hp. @10,500rpm
1/4 mile 9.95 @ 143.69mph
top speed 175 mph

2001 gsxr 750
123.6 rear wheel hp @12,500rpm
1/4 mile time 10.38 @ 135.49mph
top speed 168 mph

2001 gsxr 600
103.5 rear wheel hp @13,500rpm
1/4 mile time 10.76 @ 127.95mph
top speed 156 mph
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Old 11-04-2006, 04:36 PM   #14
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The speedo stops at 186mph although I have heard it said that the revs will continue to rise (K5/K6 1000's)
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Old 11-04-2006, 07:50 PM   #15
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I am guessing that by what I have seen and read, that a K6 will top out at 182 stock. I am sure that could go both ways +/- 2 or 3 mph depending on rider and conditions
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Old 11-05-2006, 03:07 AM   #16
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my k2 1000 speedo stops at 299klm per hr (185.7miles)
At that speed I cant tell if holding it there is getting it going any faster
(stock gearing and only 140 or so HP)
It would be interesting to use a gps to get the "true" speed.
Seedos here in OZ only have to be acurate to + or - 10%
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Old 11-05-2006, 06:39 AM   #17
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Quote:
Originally Posted by BtownGixxer View Post
Doesn't the speedo stop reading higher than 186?
i dont even know. I would have to ride his bike and see 4 my self. Sometimes people say things to look cool.
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Old 11-05-2006, 08:22 AM   #18
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Read again it tells you about speedometers
Quote:
Originally Posted by audi1031 View Post
Many factors rider wind road gear HP best gearing time weight Sooo many that can make a diffrence hel if you took a dump could matter. Avg stock one ( Unless you have GPS then post your mph) is 176 -182 mph. I can not say definate and Yes to all you speedo will be off so don't think what you seen on your MPH of your bike to be accurate unless you have speedo healer or GPS I am no expert just saying that is what i have seen on GPS
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Old 11-05-2006, 09:30 AM   #19
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A lot of answers, thanks.
But does anyone know what actually limits the top speed? Is it simply the gearing -- would higher gear ratios, or a seventh gear increase the top speed? Or is it simply down to being defeated by the drag -- i.e. more power or improved aerodynamics are needed?
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Old 11-05-2006, 10:41 AM   #20
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If you could get around the electronic speed restrictor, I think you would need excess power to go past 200mph (a turbo or/and nos)
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Old 11-05-2006, 01:22 PM   #21
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Default It is not the gearing

There are a few factors affecting top speed.
  • The factory 300 KPH (186 mph) limiter
  • Aerodynamic drag of the bike and rider combo
  • Weight of bike and rider and gear (only due to slower acceleration, which doesn't matter if you have limitless area to accelerate (Bonneville)
  • Horsepower of engine
  • Gearing
  • Frictional losses of the drive train (chain, sprockets, shaft?)
  • Surface the speed attempt was made on (pavement, salt, dry lake,?)

This is not an all inclusive list, but is the major ones. Tires can effect the speed as well. Even the unsprung weight of the wheels can have an effect on accleration, but not top speed. One thing I can say positively is that my 06 GSXR1000 will not go faster than 186 mph stock. Also, changing the gearing to a taller set up would do absolutely nothing(except slow it down), as it is geared for over 200 mph stock. That is pretty easy to figure. In my case at 70 mph indicated, my engine is turning close to 4500 rpm. Triple the rpm would put the engine at redline(13,500), so triple the speed is about 210. Some magazines check the speed at 1000 rpm in top gear and multiply it by the redline (I.E. 10 mph in 6th with a 13,500 redline would be 135 hypothetical top speed). Actual top speed varies hugely from hypothetical top speed. And you also have to remember that for whatever reason our speedos are way off on the optimistic side. My experience has been they are more than 10% off. Sometimes much more than 10%.

Sometimes gearing down rather than up will bring a higher top speed. The reason is most stock bikes will not pull top gear to redline. The aerodynamic drag on a motorcycle increases with the square of the airspeed. So it takes a hell of a lot more power to go just a few mph faster. If you can gear the bike down to get the rpm up higher into the peak power band of your engine, your top speed could conceivably increase. In my race bike's case, gearing down substantially did not affect my top speed at all. It stayed the same, but it gets there a lot quicker, and the engine is revving a lot higher.

I guess the moral to the story is the major influence, by far, is the drag on the motorcycle. If you can clean up the aerodynamics of the bike or tuck in tighter, you can have a lot bigger influence on top speed than adding horsepower. Unless you add a LOT of horsepower, like nitrous, supercharging, turbocharging, etc. Ideally you would have the most slippery motorcycle in the world, and have about 500 horsepower. Then you would be having some fun.

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Old 11-05-2006, 03:44 PM   #22
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i'm not sure how they limit the bikes with top speed. But @ 170mph i'm at about 14000 rpm. The bike sound like its struggling after like 160 something mph. MY boy with the 636 say his stop at 171mph and his shift light comes on. which he is very close to redline.
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Old 11-06-2006, 01:34 PM   #23
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i have been re geared so i pet out the speedo at 190 but riding next to a stock 2005 gsxr 600 and him being topped out at 170 and i'm still pulling away from him on a 99 gsxr 750
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Old 11-06-2006, 01:34 PM   #24
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so i might have hit like 175-178ish
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Old 11-06-2006, 04:19 PM   #25
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All the japanese manufacturers have a gentlemen agreement not to produce motorcycles that go beyond 300 kilometers/hour. That's 186mph. ZX-14 and Hayabusa included. To do so, they mess up the timing of the spark in 6th gear passed a certain RPM... Thus reducing the power.

I know that my GSX-R1000k5 FLIES to 290km/h than... the engine hits a wall. I am pretty sure that with a TRE (device that restores proper timing), I would blow by 300kph (186mph) easily... A guy on another forum with an otherwise stock Hayabusa 2002 with a TRE did 193mph (measured with an on board GPS). I believe it. Takes A LOT OF HP to go beyond 200mph.
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Old 11-07-2006, 12:41 AM   #26
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I ve read somewhere that top speed is limted by a timing retarder in sixth gear. Taking away timing would defintly kill your hp and your fun.
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Old 11-07-2006, 06:14 PM   #27
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193 By a GPS that I took from work. But returned it later.
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Old 11-22-2006, 09:34 PM   #28
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Quote:
Originally Posted by Corge View Post
Just out of curiosity; for models with the 162 HP engine what limits the top speed to ~290 km/h? Is it air drag, a speed-limiter or the gearing?
Could the machine reach a higher top speed if the gearing was set somewhat higher? Not that I need or would want that, just curious. :-)
I have a K6 1000....I had it at 184 (according to the speed-o). As far as accuracy, I don't know, but I do know that's what the speed-o said.
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Old 11-22-2006, 10:41 PM   #29
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Quote:
Originally Posted by BtownGixxer View Post
I seen it posted in a mag. I have seen my speedo hit the magic 186 mark, don't have a GPS to varify how fast I was really going
Speedo`s are optimistic 4% to 8% with stock tires.
The GPS would be the closest you can get without a radar gun.
Of course unless you have a speedo healer dialed in.
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Old 11-22-2006, 11:02 PM   #30
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Quote:
Originally Posted by GIXERMAN View Post
The speedo stops at 186mph although I have heard it said that the revs will continue to rise (K5/K6 1000's)
yep...the speedo stops reading but you still keep going lol.
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Old 11-22-2006, 11:03 PM   #31
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Quote:
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I ve read somewhere that top speed is limted by a timing retarder in sixth gear. Taking away timing would defintly kill your hp and your fun.
TRE =timing retard el imitator. Basically what it does is trick the ecu to read a fuel map of 5th gear which doesn't trigger the speed governor. The top of 6th gear fuel map is where the speed governor is detected.
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Old 11-22-2006, 11:06 PM   #32
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oops
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Old 09-19-2009, 01:44 PM   #33
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Default 05 1k 186mph

I have a 05 gsxr 1k and a T.R.E. on it. I have touched 186 numerous times. With the tre off it blinks back in forth to 184-186. With the tre on it sticks at 186 and holds until i let out of it. Not sure what the actual speed is but indicated was 186 and rpm's still pulling.
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Old 09-19-2009, 02:05 PM   #34
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Quote:
Originally Posted by onedownfiveup View Post
Your digital speedometer will not read past 186
ok first of the digital speedometer can read any 3 digit number it does not stop.

top speed it governed at 186 through the 6th gear it gets retarded.

you can eliminate it buy using a mod GPS(gear positioning sensor), TRE( timing retard eliminator) or hack the ECU.

if your speedo says 186 i can probably promise it is wrong all speedometers are off a little like the guys before said you need a GPS(global positioning sensor) or speedohealer to know for sure what you are doing.

and a GPS can read up to any speed I have a buddy ran 255 at the texas mile and his GPS read that.
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Old 09-19-2009, 09:30 PM   #35
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Quote:
Sometimes gearing down rather than up will bring a higher top speed. The reason is most stock bikes will not pull top gear to redline. The aerodynamic drag on a motorcycle increases with the square of the airspeed. So it takes a hell of a lot more power to go just a few mph faster. If you can gear the bike down to get the rpm up higher into the peak power band of your engine, your top speed could conceivably increase. In my race bike's case, gearing down substantially did not affect my top speed at all. It stayed the same, but it gets there a lot quicker, and the engine is revving a lot higher.
+1


Can anyone verify top speed on a k6-k9 600 with -1+2 gearing with gps or speedo healer?

Ive been trying to find out what gearing combo will start to make you lose top speed sinse these bikes are geared to tall to start with.

I have a k8 600 with a -1 front sprocket. Been thinking about doing the +2 rear but dunno cause of top speed loss, higher rpms at a certain speed, ect..
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Old 09-19-2009, 09:37 PM   #36
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Quote:
Originally Posted by Dmcblaster View Post
+1


Can anyone verify top speed on a k6-k9 600 with -1+2 gearing with gps or speedo healer?

Ive been trying to find out what gearing combo will start to make you lose top speed sinse these bikes are geared to tall to start with.

I have a k8 600 with a -1 front sprocket. Been thinking about doing the +2 rear but dunno cause of top speed loss, higher rpms at a certain speed, ect..
I am sure some one can get you close but every bike is different.
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Old 10-13-2009, 05:37 PM   #37
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has anyone ever done a top speed run with gps on an 08 gsxr 1000 and what is the recommended way or product for messing with the timing retard in sixth
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Old 10-13-2009, 06:01 PM   #38
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Quote:
Originally Posted by Ghostrider750 View Post
TRE =timing retard el imitator. Basically what it does is trick the ecu to read a fuel map of 5th gear which doesn't trigger the speed governor. The top of 6th gear fuel map is where the speed governor is detected.
TRE effects Ignition timing, not fuel map.

and to everyone else...did we not notice that this thread is from 2006? Its like 3 years old guys.
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Old 10-13-2009, 07:57 PM   #39
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Quote:
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has anyone ever done a top speed run with gps on an 08 gsxr 1000 and what is the recommended way or product for messing with the timing retard in sixth
yeah I have it is 186 with a speedo healer on a gps and the speedo said the same. if you want to test it another way you can by a cheap radar gun and check it that way too. Just don't ask a cop to do it lol I know you won't but my friend did
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Old 10-13-2009, 08:18 PM   #40
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right it is 3 years old but its either get yelled at for an old thread or not using the search function so which is the lesser of evils?

i wonder what it would take to make it a 200 mph bike
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