2007 Kawasaki Zx10r Top Speed
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posted September 04, 2005 08:13 PM Top speed in 5th gear?
Hi guys,
I suspect there may be something wrong with my bike - this weekend I did a ride with a couple of friends and was shocked to find that the ZX10 only does 245 km/h (152 mph) in 5th gear before it hits redline - and it takes its sweet time getting there as well (on a downhill with the wind from behind).
Can I have some posts on the top speeds and gears at redline please?
PS: I've had the bike up to 145km/h (90 mph) in 1st with the revs at about 10500 rpm (its hard to tell, you know why), but that sounds about right - so I'm just curious to know if the bike is a little lazy compared to other 2005 ZX10's out there in the higher gears.
Thanks!
____________
Currently:
2007 ZX-14 (stock)
2007 ZX-6 (stock)
Before:
2 x 2006 ZX10-R (stock)
2006 GSX-R1000 K6 (Yoshi + PC)
2005 ZX10-R (HyperPro damper)
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posted September 04, 2005 08:49 PM SOMETHING is going wrong with your 10, 5th gear more than 299kph. where are you from?
Needs a job
Bergie
Posts: 3009
posted September 04, 2005 11:34 PM Uh, no. 299 kph = 185.789986 mph, that's redline in 6TH GEAR not 5th. Den WHERE ARE YOU FROM?
lol PS that's top speed for a 10R. FYI The current land speed record for a stock engine 10R is held by Don Smith, Apr-05 at ECTA, running 186.497 MPH in the standing mile.
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posted September 05, 2005 03:02 AM i can tell you i made it several times, that's not true speed, i can read it on the tach. my 10 has stock gearing and also got a shift minder too.
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posted September 05, 2005 03:21 AM http://zx-10r.net/forum/showthread.php?t=2657&page=4&pp=10
check this please, i don't have a camera to catch it on my 10 bet be sure that i'm not lying
Parking Attendant
Posts: 5
posted September 05, 2005 09:57 AM i'm sure that the land speed record for a stock 10R was recorded NOT by the damn 10r speedo but a radar gun... i'll bet money that his speedo was saying something like 190 - 195 or more when he was doin 185 or so.
i had my GPS unit reading 100mph when my speedo said clearly 108!
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posted September 05, 2005 03:13 PM So you guys recon that given top speed in 5th gear is 152 mph (with some percentage of speedo error) that there is still approx 35+ mph (of true speed) left in the ZX10 in 6th?
Hmmm, perhaps...5th and 6th are pretty close together though; does anyone know what there rpm drops to when changing to 6th straight after redlining in 5th?
PS: I'm from South Africa, the bike is not limited.
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Currently:
2007 ZX-14 (stock)
2007 ZX-6 (stock)
Before:
2 x 2006 ZX10-R (stock)
2006 GSX-R1000 K6 (Yoshi + PC)
2005 ZX10-R (HyperPro damper)
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posted September 06, 2005 04:04 AM
Edited By: TedG on 6 Sep 2005 16:59 I did some quick calcs and here is the result
At 13000 RPM stock gearing will result approxemetly
1st 103.381
2nd 127.429
3rd 150.611
4th 171.661
5th 189.436
6th 200.622
Obviously it is speed and power limited.
speed=RPM/(Primary * Final * TransRatios[x]) / (5280/(Circumference/12))*60;
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Ted
2000 Green ZX12 sold
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Green 2005 ZX10R
2009 Concours Black ABS
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posted September 06, 2005 01:05 PM i'm in Reunion Islands(french), all bikes are limited to 100hp, but everyone takes off the restrictors so we have a full power bike.
1st 170kph
2nd 205 kph
3rd 245kph
4th 275
5th 299
6th 299 but the bike still pull.
one day my friend with a gsxrK4 put a cam on his tank. we can see his speedo at 299kph during 10sec, and also me overtaking him at this speed. i'm trying to put it here, it's not easy because my web is too slow.
Zone Head
hill-billy!
Posts: 545
posted September 06, 2005 02:12 PM quote:
i'm in Reunion Islands(french), all bikes are limited to 100hp, but everyone takes off the restrictors so we have a full power bike.
1st 170kph
2nd 205 kph
3rd 245kph
4th 275
5th 299
6th 299 but the bike still pull.
one day my friend with a gsxrK4 put a cam on his tank. we can see his speedo at 299kph during 10sec, and also me overtaking him at this speed. i'm trying to put it here, it's not easy because my web is too slow.
Now this is one I have to see!
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posted September 06, 2005 02:17 PM I believe we have already discussed this.. hence the 10R being "unrestricted"
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posted September 07, 2005 12:01 AM >I did some quick calcs and here is the result
>At 13000 RPM stock gearing will result approximately
>1st 103.381
>2nd 127.429
>3rd 150.611
>4th 171.661
>5th 189.436
>6th 200.622
I understand that these are approximations but I was wondering how close these are to the actual speed anybody in the forum have been able to do on their ZX10?
I bought my 2005 ZX10 from a authorized Kawa dealership and asked them explicitly whether the bikes for our country is limited and they are not - if they lied to me then I'll get their dealership revoked (just for starters) but they actually run a local ZX10 racing team and I doubt they'd risk tainting their reputation for a quick buck, so I'm inclined to believe that there may be something else wrong with the bike if you can get close to 189 mph in 5th where I only get to about 152 mph.
What I'm after right now is good information so that I can fight the good fight with the dealership if needs be so they can find and resolve the problem - but I don't want to go waltzing in there and look like a fool claiming that the bike should be able to do speed x in gear y without the knowledge that there are people out there that *actually done this in real life* on the bike.
If this has been discussed before could anyone point me to the postings?
Thanks!
____________
Currently:
2007 ZX-14 (stock)
2007 ZX-6 (stock)
Before:
2 x 2006 ZX10-R (stock)
2006 GSX-R1000 K6 (Yoshi + PC)
2005 ZX10-R (HyperPro damper)
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posted September 07, 2005 12:13 AM What I calculated is what the gearing would deliver. Our bikes are speed limited to 186 MPH once they hit that the electronics take over. So 5th will cut out at 12764 RPM and 6th will will cut out at 12053 RPM and both gears will only go up to 186.
It sounds like your clutch is slipping and that is why it takes so long to get there and why the difference in RPM. You should be turning 10431RPM in 5th at 152.
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Ted
2000 Green ZX12 sold
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posted September 07, 2005 10:57 AM ZX10R will still pull at 186 MPH/299KMH because the speedo is off by 8%, which means when you first hit 186 MPH on your speedo, you are really only hitting 171.12 MPH, so it will pull till 186 while the speedo just stays at 186 the whole time. I have hit the 300KMH and have registered it on the GPS (6th). Never checked to see if it would do it in 5th, but I'm sure it would be close if not right there.
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FYYFF!!!
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posted September 07, 2005 12:55 PM you will do it in 5th easily.
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posted September 07, 2005 04:59 PM Thanks for the feedback folks; the message I'm getting is that if my ZX10 struggles to show 299 km/h on the speedo in 5th then it's a good indication that something is not as it should be.
Ted; thanks for calculating the gear figures - I can confirm that I'm able to do the following speeds (as taken on speedo) when my gear change light comes on (set to 13000 rpm):
1st - 156 km/h
2nd - 198 km/h
As you can see my figures do not quite match the calculated figures but it's fairly close, so it may point to something minor that needs attention / adjustment on the engine? Spark plugs, timing or something like that?
As soon as I can find a stretch of deserted road (or long track straight) I'll see what the 3rd and 4th gear figures are and compare them as well.
Now I need to come clean...I left out a minor but probably very important detail that could explain *some* of the loss of top speed and why my bike maxing out in 5th gear at 245 km/h; I had my wife on the back! ...but I'm not sure whether that should slow me down with 55km/h though, maybe by 10 or 15 km/h?
She weighs about 60kg and was tucked in behind me - my logic suggests that the additional weight will have a very minor impact on the top speed on a level road given the power of the engine plus the fact that we've already overcome any inertia that would hinder acceleration, but the additional wind resistance / drag generated by her and the fact that I could not tuck in completely my play a more significant role...?
Thoughts?
____________
Currently:
2007 ZX-14 (stock)
2007 ZX-6 (stock)
Before:
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posted September 08, 2005 12:24 AM It sounds more and more like your clutch is slipping. In the lower gears the speed wouldn't be affected as much because there is less strain on it. As you increase the load (especially riding double) the clutch will slip more creating a variance in the speed-RPM. Remember gearing is a constant, X RPM = Y SPEED as dictated by the gear ratios. If there is any discrepancy that means there is slippage somewhere and that is a bad thing. First check the adjustment of the clutch, there must be some slack in it. If you have found that you had to do a lot of adjustment to the cable, that is a sign of clutch wear. Especially if you have found that you need to put more slack in the cable. Also check it at the lever on the engine, you may have no slack there but slack in the cable.
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Ted
2000 Green ZX12 sold
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posted September 08, 2005 03:08 AM Hmmm, Ted I hear ya. I wonder...
I just checked the play at both the clutch level and the lever on the engine as you suggested and there is definitly slack (about 2mm worth), so if the clutch is slipping its not because of the cable, that's fo-sho.
At the 1000km service they had to remove the engine covers to check out some noise that I was getting from the engine (turned out to be - well according to them anyway - the alternator balancer)...point is that I think they may have opened up the gearbox (or bits of it) as part of their search - I know very little (read nothing) about bike engines, but what's the odds that they could have messed up the clutch somehow internally in a rush to put the bike back together again?
I also assume that if there is a problem with the clutch slipping that it will not necessarily show up on a dyno test? Thoughts?
Thanks.
____________
Currently:
2007 ZX-14 (stock)
2007 ZX-6 (stock)
Before:
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posted September 08, 2005 03:28 AM If your clutch is slipping it will most assuredly show up on the dyno as a lack of HP. I would assume that the dyno run would have a graph that they could use to check the rear wheel speed vs. the RPM.
Also idf the clutch pressure plate is bottomed out it will have play but not enough pressure on the plates.
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Ted
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posted September 08, 2005 11:15 AM My bike hits 104mph (on the speedo) in 1st and 128 in 2nd (on the speedo) at the limiter
Sounds like what TedG came up with is pretty close to what my bike will do. I guess I need to break out the GPS and find out how close my speedo is.....
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posted September 08, 2005 12:55 PM quote:
My bike hits 104mph (on the speedo) in 1st and 128 in 2nd (on the speedo) at the limiterSounds like what TedG came up with is pretty close to what my bike will do. I guess I need to break out the GPS and find out how close my speedo is.....
Mine does exactly the same...exactly.
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Ted
2000 Green ZX12 sold
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Green 2005 ZX10R
2009 Concours Black ABS
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posted September 08, 2005 04:03 PM When you guys say "at the limiter", do you mean that you take the revs into the red (i.e. 13000 rpm +) until the rev limiter kicks in? Can anyone tell me where the limiter kicks in, @13500 rpm?
Up to now I've been measuring my top speed when the change light comes on @ 13000 rpm, not sure if an odd 500 rpm could explain the slight discrepancy between my actual speed and Ted's calculated speeds...?
Also, do you guys have non-stock cans fitted? I'm still using the stock can - from what I understand a slip on could actually give you a handful of extra hp on the wheel, which could also explain why my speeds fall a little short of your *real life* speeds?
Can the mechanically inclined guys please give me a sense of how *safe* is it to run the engine for say a minute or so at its peak revs and then bring it back down and then into the red again and then back down again etc. ? I intend to keep the bike for a while and I don't want to fook it up.
PS: This morning I got up to 233 km/h (144 mph) in 3rd @ 13000 rpm. Again that is about 6 odd mph under the calculated value...kawachan, how close do you get to 151 mph in 3rd? I measured my speed on a slight downhill...I'll try on a level road this weekend again and see.
Thanks again guys, I appreciate all of your input and help on this.
____________
Currently:
2007 ZX-14 (stock)
2007 ZX-6 (stock)
Before:
2 x 2006 ZX10-R (stock)
2006 GSX-R1000 K6 (Yoshi + PC)
2005 ZX10-R (HyperPro damper)
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posted September 09, 2005 12:31 AM quote:
When you guys say "at the limiter", do you mean that you take the revs into the red (i.e. 13000 rpm +) until the rev limiter kicks in? Can anyone tell me where the limiter kicks in, @13500 rpm?
To the limiter means beyond red line and where the electronics cuts you off somewhere about 13500.Up to now I've been measuring my top speed when the change light comes on @ 13000 rpm, not sure if an odd 500 rpm could explain the slight discrepancy between my actual speed and Ted's calculated speeds...?
The specs I gave you were for 13000.Also, do you guys have non-stock cans fitted? I'm still using the stock can - from what I understand a slip on could actually give you a handful of extra hp on the wheel, which could also explain why my speeds fall a little short of your *real life* speeds?
First of all it doesn't matter how much HP you have, gearing is gearing and with no slippage in a given gear X RPM will give you Y MPH whether you have 100 or 500 hp.
And yes I am using a stock can.Can the mechanically inclined guys please give me a sense of how *safe* is it to run the engine for say a minute or so at its peak revs and then bring it back down and then into the red again and then back down again etc. ? I intend to keep the bike for a while and I don't want to fook it up.
A minute is quite a long time to be revving an engine without vaying the revs. I suppose it probably woulf live, although I wouldn't want to do it too often. Even race bikes don't do that. IMHOPS: This morning I got up to 233 km/h (144 mph) in 3rd @ 13000 rpm. Again that is about 6 odd mph under the calculated value...kawachan, how close do you get to 151 mph in 3rd? I measured my speed on a slight downhill...I'll try on a level road this weekend again and see.
Still sounds like the clutch is slipping, I bet it is worse whan you are riding double.
Thanks again guys, I appreciate all of your input and help on this.
____________
Ted
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posted September 09, 2005 09:46 PM 
- Thanks Ted, Interesting development...
Yesterday the bike started idling really erratically and sounded "off" when running up to about 4000 odd rpm - almost as if the timing was out or one of the cylinders weren't firing properly.
Today the bike sounds like a tractor (not kidding) in the lower rev's, but interestingly enough it still pulls strong in the higher revs...in fact I did 248 km/h (on the speedo) this morning in 3rd gear. There is also another weird sound layered in there when running in the lower rev's, almost like air escaping somewhere.
I have a track-school session tomorrow, so I rode it to the dealership this morning for a quick check before I go and belt it on the track and completely destroy what is left of the engine - they assured me that although they can hear what I mean the very much doubt that it would do damage to the engine and gave me a thumbs up to go for it - one of the local Kawasaki team racers from the dealership will also be at the track tomorrow and he'll take it around the track a couple of times and work with the mechanics on Monday to sort the bike out. Gotta love the Kawa guys.
Ted, I'll ask the service manager to check out the clutch as well while they have the bike in the workshop - you seem to have a strong hunch that something is wrong there - I'll let you know what they find.
Perhaps slightly off topic, but I was wondering if anyone has any thoughts on whether it may be worth changing the oil and filter again at this point (3000 odd km) while the bike is in the workshop? I assume they will do an oil change at the 5000 km service, but some of the bikers I've spoken to recon that it's a good idea to replace before then (especially if you are riding the bike hard) as a relatively inexpensive exercise to preserve the engine to run better in the long term. Thoughts?
____________
Currently:
2007 ZX-14 (stock)
2007 ZX-6 (stock)
Before:
2 x 2006 ZX10-R (stock)
2006 GSX-R1000 K6 (Yoshi + PC)
2005 ZX10-R (HyperPro damper)
2007 Versys (stock)
Parking Attendant
Posts: 3
posted September 10, 2005 08:02 AM 05 ZX-10R from Athens, Greece, dynoed at 160Hp w/full Arrow exhaust and a DNA air filter (stock gearing). I'll totally back up the claims made by Ted and Kawachan pertaining speed numbers. I've seen the exact same numbers.
1st - 166Kph at the limiter (13750rpm)
2nd - 207 at the limiter
3rd - 242 at the limiter
4th - 260 at 13000rpm and 280 at the limiter
5th - 270 at 12000rpm, 290 at 13000rpm and 299+ at the limiter
6th 285 at 12000rpm and, of course, 299+ at the limiter.
Yes, I've hit the limiter in 6th gear on a flat road very easily! All it takes is a stretch of less than 3 miles (starting from from a dead stop!!). In about a mile and half (from a dead stop again) I've hit the limiter in 5th! Everybody can do it, it's not that difficult. I don't claim my bike is anything special and hey, I don't even consider myself to be a very good rider.
So far so good. I have only one ''complaint'' from my bike: the dyno revealed that its TRUE top speed is 287Kph at the limiter in 6th gear. Isn't that a bit ''low''???? What do you guys think? I mean, I was expecting it to be around 295 to 300kph at the limiter.
By the way, did you know that the tach cheats as well? The dyno said the limiter is at 12624rpm when I read 13750 at the tach.
Any insights will be greatly appreciated.
Source: http://bikeland.org/board/viewthread.php?FID=19&TID=18833
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