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 Dr P sliders, do I need them?

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steve_h80
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PostSubject: Dr P sliders, do I need them?   Tue 10 Jan 2017, 16:46

Looking back through the old posts there is a lot of info but I'm still unsure.
It seems that lighter sliders improve acceleration from 0mph, but do they make any difference in mid range acceleration?
If cruising at 50 or 60mph and I open the throttle to make a pass will lighter sliders be of any benefit?
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Cosmic_Jumper
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PostSubject: Re: Dr P sliders, do I need them?   Tue 10 Jan 2017, 21:18

Yes
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GHM-PM
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PostSubject: Re: Dr P sliders, do I need them?   Tue 10 Jan 2017, 21:40

If you must have more acceleration then lighter rollers/sliders is the answer. I believe OEM is 28g. If you like OEM performance then stay with Honda rollers or 28g sliders. But the lighter you go expect a decrease in top end and fuel economy...
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Easyrider
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PostSubject: Re: Dr P sliders, do I need them?   Tue 10 Jan 2017, 22:36

Glen,
When I switched to 24g sliders from 28g rollers, I actually dropped 500 rpm at 65mph. I believe that the higher starting RPM uses more fuel but evens out with the drop in cruising rpm.
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Meldrew
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PostSubject: Re: Dr P sliders, do I need them?   Tue 10 Jan 2017, 22:42

I've never felt the need to fit Dr Pulley sliders in six years of Silver Wing ownership, however tonight I had three Sloppy Joe sliders in challah buns in a bar in Downtown Dallas and they were well worth the money.  Smile


Last edited by Meldrew on Wed 11 Jan 2017, 08:09; edited 1 time in total
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Easyrider
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PostSubject: Re: Dr P sliders, do I need them?   Wed 11 Jan 2017, 03:35

Meldrew wrote:
I've never felt the need to fit Dr Pulley sliders in six years of Silver Wing ownership, however tonight I had three Sloppy Joe sliders in challah buns a bar in Downtown Dallas and they were well worth the money.  Smile

Meldrew,
That's good for you! Not everyone feel the need for faster acceleration. I myself enjoy the G-force when needed and applied.

Hope the weather is more to your liking in Dallas!
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GHM-PM
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PostSubject: Re: Dr P sliders, do I need them?   Wed 11 Jan 2017, 07:23

Meldrew wrote:
I've never felt the need to fit Dr Pulley sliders in six years of Silver Wing ownership, however tonight I had three Sloppy Joe sliders in challah buns a bar in Downtown Dallas and they were well worth the money.  Smile

Scary thought Meldrew but I agree with you! affraid I changed to the Dr Pulley sliders at my first belt change due to info gained on this forum. My Honda OEM rollers had little or no wear on them so the change was not necessary. Especially as I did not change the weight (happy with stock performance). I could have got 2 belts to one set of rollers easily. That coupled with the price difference...Dr P units are more than twice as expensive as Honda rollers. For me I probably will not use sliders again but instead will go back to rollers. But who knows What a Face
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Old Limey
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PostSubject: Re: Dr P sliders, do I need them?   Wed 11 Jan 2017, 12:52

I think it's a matter of choice. I fitted Dr Pulley sliders on my first Silverwing and noticed it improved performance. I have fitted Dr Pulley sliders when I did the belt change at 16,000mls on my current Silverwing.  There is not a "fantastic" change, but a noticeable one. If you don't want to spend the money then , I would say your not missing out to any great extent. There is a better response for overtaking that you would certainly notice with the sliders in place.
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Murf
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PostSubject: Re: Dr P sliders, do I need them?   Mon 01 May 2017, 16:28

Sage Advice from an old rider, replace with upgrades when they fail and save your money for good friends and beer!!!!
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cliffyk
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PostSubject: Re: Dr P sliders, do I need them?   Mon 01 May 2017, 16:36

FWIW after trying both 26 and 24 g sliders I settled in on running a "mixed bag" of four 24 g and four 26 g. The 26s were nice, great acceleration and a good rpm drop-off "at speed", the 24s offered only slightly better acceleration but pushed rpms slightly higher at 70+ mph.

For me the 24/26 combo provides a nice compromise...
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exavid
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PostSubject: Re: Dr P sliders, do I need them?   Mon 01 May 2017, 17:02

I've wondered about the use of more than one weight slider. With all the same weight sliders there's an even force on all parts of the variator, with different weights there's different forces on various areas of the variator. I'm not saying it would cause problems but wonder if it might cause a different mode of vibration. I haven't heard of anyone having a problem mixing the slider weights, but wonder what the design engineers would think of it.
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cliffyk
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PostSubject: Re: Dr P sliders, do I need them?   Mon 01 May 2017, 19:27

exavid wrote:
I've wondered about the use of more than one weight slider. With all the same weight sliders there's an even force on all parts of the variator, with different weights there's different forces on various areas of the variator. I'm not saying it would cause problems but wonder if it might cause a different mode of vibration. I haven't heard of anyone having a problem mixing the slider weights, but wonder what the design engineers would think of it.

They would tell you it doesn't make a rats's backside bit of difference as long as the masses of the weights are reasonably close (2 g is entirely "reasonably" close) and the total mass is evenly distributed within the variator assembly...
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Mech 1 twa
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PostSubject: Re: Dr P sliders, do I need them?   Mon 01 May 2017, 21:27

Best to keep the parts all the same weight, in balance. 2 grams at 7000 rpm can be a lot.Variator is bolted to engine crankshaft. Force is multiplied by spinning. Engines are balanced to a certain degree from factory. Racing engine are balanced as close to perfect as possible. Rods, crank, pistons and flywheel. Variator is the flywheel on this engine.

Installed 26G sliders I like them. Not much better 0-30 but after that feels quicker. Lower RPM's at higher speed.
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exavid
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PostSubject: Re: Dr P sliders, do I need them?   Tue 02 May 2017, 01:52

It may or may not make much difference. If it doesn't well and good, if it does... not so good. But there will be a difference, because each roller or slider pries the variator closed as it moves out. The different weights may cause a slight warping of the variator since there will be a difference in the amount each roller moves due to centripetal force. I seriously think the Honda engineers would endorse the idea.
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oldwingguy
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PostSubject: Re: Dr P sliders, do I need them?   Tue 02 May 2017, 06:44

Thinking about but not sure, wouldn't the different weights act in a manner to wear one of the sets more than the other due to the weight difference and not applying equal force?
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Flyingpanman
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PostSubject: Re: Dr P sliders, do I need them?   Tue 02 May 2017, 08:02

I did a search on the Dr P's website and found a .pdf file where they recommend either 24g. or 25g. sliders for the Silver Wing 600.

Therefore, it would appear they manufacture 25g. sliders and I may just purchase those... in time.
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Leena Hallasmaa
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PostSubject: Re: Dr P sliders, do I need them?   Tue 02 May 2017, 15:14

After riding only a few kms with Dr Pulleys in town because of the late spring arrival and some snowy days O´m quite impressed. I´ll head on a proper trip on friday. A straight answer to your question; no, you don´t need them necessarily, but I guess you might want them.
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Modernman1953
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PostSubject: Re: Dr P sliders, do I need them?   Wed 03 May 2017, 02:17

I would suggest a Corbin seat and a cup holder instead.
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exavid
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PostSubject: Re: Dr P sliders, do I need them?   Wed 03 May 2017, 13:47

Probably better not to mention a cup holder on this forum.... Rolling Eyes Wink
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Leena Hallasmaa
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PostSubject: Re: Dr P sliders, do I need them?   Wed 03 May 2017, 14:17

I was just about to add the leather straps to the brake levers to the debate Laughing Laughing
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exavid
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PostSubject: Re: Dr P sliders, do I need them?   Wed 03 May 2017, 14:32

Oh man, you're going to set him off for sure. Shocked Laughing
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Modernman1953
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PostSubject: Re: Dr P sliders, do I need them?   Wed 03 May 2017, 16:04

Well the Corbin seat will make your time on the seat more comfortable and a cup coffee in the cup holder will give you more smiles to the miles.  

Used Corbin seat:  $250
Cup holder               35
Starbucks coffee         3

Total costs:  $288  (I am not sure of the cost of the rollers but this would be money better well spent.) 

Your butt will feel better and your heart rate will go up, but the scooter performance will remain the same.

I apologize to the OP in taking this off topic of the economic opportunity costs of purchasing rollers.
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cliffyk
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PostSubject: Re: Dr P sliders, do I need them?   Wed 03 May 2017, 18:10

Leena Hallasmaa wrote:
After riding only a few kms with Dr Pulleys in town because of the late spring arrival and some snowy days O´m quite impressed. I´ll head on a proper trip on friday. A straight answer to your question; no, you don´t need them necessarily, but I guess you might want them.

I agree 110%--no one "needs" them unless you are the sort that wants your machines to be "all that they can be" or at least headed in that direction. Many are complacent are comfortable living their live in "safe mode", many are not and like to experiment and seek their personal edge. I am of the latter group and have made "modification" mistakes, but hopefully have had more successes than mistakes, and if not have learned from those mistakes¹.

The various "weights" of sliders offered are among the many options available to let each of us find that edge.

So the bottom line answer to do you "need" them is not anything anyone else can answer--you have to decide...

---------------------------------------------
¹ - Thomas Edison was working to make a practical incandescent lamp, he had tried nearly 100 filament materials with no solution. A reporter asked if he was disappointed by his failures--Edison responded that he "...had no failures, he now knew 100 things that do not work."

And that is true genius...
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DickO
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PostSubject: Re: Dr P sliders, do I need them?   Wed 03 May 2017, 18:20

Let's see... Moon hub caps, loud heel taps, glass packs, penny loafers, peelin' out, raised white lettered tires, lowered rear ends, california rakes, change the jets, advance the timing, put on some headers... you name it... it was really cool and fun back then to do whatever made you feel good about your vehicle. You have the bucks and want sliders to put in your variator to improve acceleration or to make it run smoother ???? Go ahead... and have a great time doing it too !!! You might like it and you might not... but it's still yours... Have fun !
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Sidewinder Pilot
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PostSubject: Re: Dr P sliders, do I need them?   Wed 03 May 2017, 23:15

The sliders make a big difference in the response of the scooter, the 26g sliders gave me a lower ratio off-idle and a higher ratio on the hiway.
The peak acceleration with stock was about 25% less then with the sliders.

About 2000mi ago I installed slightly stronger clutch springs and a stronger contra spring.
This gave me another 25%, and put my RPMs closer to the power band.

If you are a heavy rider, or ride 2-up with luggage, or just want better acceleration, these are mods that you should consider.
They are not expensive, they don't negatively effect reliability, and most importantly provide a tangible and measurable improvement in performance.

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exavid
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PostSubject: Re: Dr P sliders, do I need them?   Thu 04 May 2017, 00:19

Hey, go for the gold, you only live once. motorcycle
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