How many of you take your bike to redline?

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jcbarnar said:
When your on it, you are usually always better off using the entire rpm range available, even if peak power tapers off before redline. Like you said peak numbers don't matter, because its the highest *average* power throughout the rpm range that matters. Simply look at a dyno graph and imagine an average of the low and high hp numbers of your power band. Shade in the area under the curve between your start and end rpm in a gear. Shifting early will usually lower the average power available in each gear. Every engine is different though and you can't use your butt you need a graph and some maths.

Also, if your gear ratios don't match a particular track then you may need to shift early to avoid banging the limiter before a braking zone but thats another topic :s

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SS bikes have what is called overrev. As in they redline two thousand rpm above peak #s. So when needed you can hold a gear rather than shift up only to have to shift back down. Shifting at redline is slowing your drive. Example a guy at bogie was shifting his gixxer6 at redline 16000rpm, told him to shift at 14000rpm. He knocked 3 seconds a lap off. From a 2:18 to a 2:15. Oh and carboncat is in second place in his race class so I think he knows what he's doing. :)
 
My starter 250 I maxed out, but have not maxed out my 883, with stage 1 jets ,SE pipes , SE filters,etc it can scare a guy my age, though as a kid maxed out my Vette on the highway...

later alligater
 
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As I understand it, for speed best place to shift is where each gear's curve intersects with the following gear curve.

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ISuckAtMath said:
I purchased a 1998 zx9r and I have been shifting at the 5k mark. Am I missing something? Whilst I see the point of letting it scream on the track is it appropriate for the street and does it cause undue engine stress? Or am I bring a p***y?
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yes
 
Sunspark said:
As I understand it, for speed best place to shift is where each gear's curve intersects with the following gear curve.
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What exactly is that graph from?
 
Shift at the peak of each curve. In the next gear it drops you into a steep part of the its curve.
 
gsxr guy said:
SS bikes have what is called overrev. As in they redline two thousand rpm above peak #s. So when needed you can hold a gear rather than shift up only to have to shift back down. Shifting at redline is slowing your drive. Example a guy at bogie was shifting his gixxer6 at redline 16000rpm, told him to shift at 14000rpm. He knocked 3 seconds a lap off. From a 2:18 to a 2:15. Oh and carboncat is in second place in his race class so I think he knows what he's doing. :)
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I understand why its nice to have some revs available to hold onto a gear, however whether or not your gearing matches a particular track has little to do with the engines power output. Im just saying that there isn't a hard rule that applies to every motor, if shifting early is better for you then guys should understand why. In your case it is because power must drop significantly enough to pull down your average hp to the point where its not worth taking to redline. Although I find it hard to believe someone gained 2 sec from shifting earlier on a healthy motor, assuming that is the only factor. Power is significantly less with each higher gear due to a smaller torque multiplier, so I'll continue to rev my motors :)

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jcbarnar said:
I understand why its nice to have some revs available to hold onto a gear, however whether or not your gearing matches a particular track has little to do with the engines power output. Im just saying that there isn't a hard rule that applies to every motor, if shifting early is better for you then guys should understand why. In your case it is because power must drop significantly enough to pull down your average hp to the point where its not worth taking to redline. Although I find it hard to believe someone gained 2 sec from shifting earlier on a healthy motor, assuming that is the only factor. Power is significantly less with each higher gear due to a smaller torque multiplier, so I'll continue to rev my motors :)

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That would be 3 seconds:). No other factors. Just better drive.
 
almost impossible to redline in the city and not get in trouble with cops... unless of course you are cruising on hwy7 on first gear..... but thats a waste of gas...
 
I redline off most stop lights, but I only have a CBR500 so that's not saying much haha. There's nothing like redlining through 3 gears to get on the highway :) You guys just need less powerful bikes.
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