trganey
Expert Class
Posts: 196
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posted June 03, 2011 10:07 AM
Slider Clutch Lockup RPM?
On average what is the target rpm to have the slider completely locked up at? I understand that it is fact dependant upon a lot of variables so lets go with these details.
Weight: 600lbs
Gear: 15-48
Engine: 1500cc inline 4
Trans: 6speed 1-4 auto
Tire: 10" slick
Fuel Sys: Electronic Fuel Injection
Two Step: 5,500 rpm
Air Gap: .050
Normal 60': 1.15-1.18
Shift RPM: 10.250
Appx HP: 200hp
As I said I understand that each setup is different but there has to be a ball park figure of what I should be working toward. According to the data logger we are locking up at about 8,300-8,500. As bad as I hate to admit it I really haven't learned the basic's of the slider very well like what the difference is in increasing the installed height on the hat springs as opposed to adding weight to the arms (provided that you already have enough to completely lock up the clutch) at a given rpm. Does increasing the spring pressure at the hat(lowering spring height) not require more weight on the arms to keep the clutch locking up at the same rpm? I'm so confused! LOL
  
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Slowninja
Expert Class
Slow-ride
Posts: 189
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posted June 03, 2011 10:10 PM
Your original question: What is the target rpm to have your slider completely locked in at?
The answer: If the bike is leaving strong, and smooth, why would you want to change it?
If it is bogging, you'll want to lock it in at a later rpm (more HP) OR you'll want to remove some of the weight from the arms (which could also result in a later rpm)
I've never ran a slider, but my thoght process says if you increase the pressure on the hat springs you're going to be adding static pressure. Which could completely change the way the bike leaves.
All that being said:
You have the perfect opportunity to answer your own question. You have the bike. You have the clutch. You have a DATA LOGGER.
Increase the spring pressure, make a note of how much you changed it. Make 2 or 3 passes. Check the data logs. Did it get better? If not, or if it got worse, all you gotta do is change it back. BUT do it in baby steps. Just one change at a time, and document every change and the effect it had on the bike.
That is the best way to learn bud.
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06 zx14
SWB
9.24 @ 148
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almost_les
Zone Head
Posts: 590
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posted June 04, 2011 10:00 AM
slowninja: you thoughts on the slider are backwards. the springs do not add pressure, they are there to pull the pressure plate up, away from the clutch pack. the hat bolts to the basket so its engine driven. it engages when the rpms come up enough for the arms to overpower the pressure of the springs and start pushing the pressure plate down. simply put its twist to go. no more clutch lever. increasing springs pressure will make it engage at a later rpm
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Slowninja
Expert Class
Slow-ride
Posts: 189
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posted June 04, 2011 12:30 PM
Ah
Well, regardless, this fellow has everything he needs to tune his clutch. Just gotta try it and see what happens
____________
06 zx14
SWB
9.24 @ 148
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