Is there are rev. limiter on an 05? I went for a ride today and i got on it, tached it up to about 11k without realizing it...how terrible is that...
Quote from: melloGS on February 14, 2006, 12:04:00 PM
Is there are rev. limiter on an 05? I went for a ride today and i got on it, tached it up to about 11k without realizing it...how terrible is that...
There is no rev limiter on the GS, so be careful when you do. You're fine when you wind it up to 11k, though. I rev mine there on a regular basis and it still runs strong. Our engine is durable as hell.
11k isn't that bad. You're going to have crank and valve issues once you exceed 12k, though...you almost have to do that intentionally, though.
yea, i noticed right when it started screaming... :o
I love the sound it makes when you run it to redline. Not as nice as an I4, but it's still pretty nice. You get valve float around 11.5k so it's hard to run it past that (unless you're at redline and mis-shift and over rev).
Shift when you hear the valve float. That seems to work all right. :thumb:
Quote from: aaronstj on February 15, 2006, 01:49:43 AM
Shift when you hear the valve float. That seems to work all right. :thumb:
Why? You are way past the peak bhp so you are damaging the engine for nothing. :cookoo:
small motor .. thought the bhp was in the high revs. what i'v heard. kinda like small cars .. there most bhp is right at there red line .
Quote from: aaronstj on February 15, 2006, 01:49:43 AM
Shift when you hear the valve float. That seems to work all right. :thumb:
I'm impressed! You've been riding since, what, October? And you're already flogging your GS. Nice! :thumb:
I think he peak HP is around 10K, but I'm known for making up such things.
Quote from: FearedGS500 on February 15, 2006, 07:10:27 AM
small motor .. thought the bhp was in the high revs. what i'v heard. kinda like small cars .. there most bhp is right at there red line .
The power is higher in the rev band, but cuts off before redline. You can see it in this dyno run (http://www.gstwin.com/dyno_run.htm) (Though that bike was slightly modified). You can see the power starts to drop at 9.5 or 10k rpm
You'll have to ask some people who drag race about the best time to shift for quickest acceleration
Thank you all for the feedback...I remember the first time it happened in november...I was runnin' around with a buddy on an 05 ninja500R...I screamed it and when i got home i noticed it shook off one of the allen bolt caps off the handlebar mounts! ordered a new one for $1.50 :icon_lol:
Is that '05 Ninja 500 faster than your bike?
Hey Aaron, What does it sound like when the valve starts to float??
I don't think I have ever gotten it over 9K so I wouldn't know. And that is Very rare that I even get it up that high.
Quote from: Budrick320 on February 15, 2006, 09:59:56 AM
Hey Aaron, What does it sound like when the valve starts to float??
I don't think I have ever gotten it over 9K so I wouldn't know. And that is Very rare that I even get it up that high.
It's not a sound, so much as a feeling, as if suddenly all the accelleration just kinda drops out and the power gets down on ya. It's as if you're going forward and forward and then suddenly "poof" you start to drag.
Peak HP is around 9k to 10K, so if you shift at redline it drops you back into the powerband, or thereabouts.
^^exactly...I've floated my valves at the drag strip in my car before...it's kinda frightening cause i thought i broke something... :oops:
Quote from: ukchickenlover on February 15, 2006, 05:02:27 AM
Quote from: aaronstj on February 15, 2006, 01:49:43 AM
Shift when you hear the valve float. That seems to work all right. :thumb:
Why? You are way past the peak bhp so you are damaging the engine for nothing. :cookoo:
Joke. But it's not like there'd a huge hp drop-off. From 8,000 on up, it's fairly flat.
Also, it sounds like it's screaming at you.
Quote from: Budrick320 on February 15, 2006, 09:59:56 AM
Hey Aaron, What does it sound like when the valve starts to float??
I don't think I have ever gotten it over 9K so I wouldn't know. And that is Very rare that I even get it up that high.
Funny thing, I couldn't hear valve float on my GS if you paid me, but my son can hear his when he gets goofy. He says he can hear the cams beating on the valve shims. I have rebuilt his motor. It is true. :laugh:
on second thought maybe im just scared of it
Quote from: Jake D on February 15, 2006, 09:49:18 AM
Is that '05 Ninja 500 faster than your bike?
Yes, it is faster than my bike. both bikes are stock.
the ninja has a lot of mechanical advantages, though. If you do the required mods to even up the power difference the GS is a little quicker because of it's weight advantage.
The Kawi has 17 more hp than our little GS500's, and it only weighs 15 pounds more. Mabye the Kawi has longer gearing?
According to the suzuki website and the kawasaki website, the ninja has a dry weight of 388, and the gs 396.8.. so the GS is 7lbs heavier.. neither website posts an HP number, and I'm too tired/lazy/mostly tired to google it..
Their real-world dry weights are 372 and 388. That doesn't account for wet weights which include the EX's slightly higher fuel capacity and rider weight and such.
most the power from a stock GS is developed around 9krpm, and a sharp fall off arund 10.5. when falicon ballences a GS crank to run without the counterballencer its for 9krpms, think even the megacycle camsfor stock pistons and springs peaks around 9-10k need the racers to chime in. the power band can be moved up or down but i think redline is that safety zone just before things start considering leaving the confines of thier designated rolls
The redline on these motors is designated by the crank. It's the same as the EX500. These old-tech parallel twins are literally trying to tear themselves apart and a little after 11k is where the crank starts walking and vibration starts tearing other things apart. The general design of the motor doesn't make much power at those speeds so the necessity of revving that high is non-existant.