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AIM VPC on Evo

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Old Oct 12, 2013 | 12:15 PM
  #1  
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Default AIM VPC on Evo

Hello everyone.
I´ve just finished my evo build, and I´m feeling some clutch slip in 4th and 5th at full throttle.
I already have a Barnett extra plate clutch kit, so I wanted to add an AIM VPC just to be sure.
But, I´m a little confused if I need to add a spacer to de Derby cover or not.
In the web there is a template but says that is only for 5 hole derby covers.
Has anybody used one of this? Can the template be used to check the Evo Derby?
Or should I order the spacer just to be sure?
Any info or experience with this would be great.

Best regards.
 
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Old Oct 12, 2013 | 01:56 PM
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what year is your bike and what clutch are you running ?
 
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Old Oct 12, 2013 | 02:03 PM
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Sorry, I don't have any experience with that type of clutch accessory.
I hope it works for you but I have to say I don't like the idea of a lot more moving parts spinning around on a clutch.
I'd look for a different solution.
But ya gotta do what ya gotta do.
 
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Old Oct 12, 2013 | 02:24 PM
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its a locker clutch. im in the same boat with my build (S&S 124), need more clutch, but a heavy enough clutch to hold 130+tq is gonna be hell on my hand in traffic

you MIGHT be able to hog out the backside of your derby cover with a grinder to make room for it, but the easier solution is a spacer (they make em). i havent seen a locker PP that doesnt need more clearance than whats available in there
 
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Old Oct 12, 2013 | 02:39 PM
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Jasper86,
My engine doesn't put out what yours will but I am very pleased with the performance of the Barnett Scorpion clutch. Have you checked with Barnett or any of the other clutch manufacturers about how their offerings will hold up?
I see the AIM VPC claims it lessens the clutch lever pull requirement.
The Barnett Scorpion lever pull for me is less than what my previous clutch required.
 
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Old Oct 12, 2013 | 02:54 PM
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Originally Posted by megawatt
Jasper86,
My engine doesn't put out what yours will but I am very pleased with the performance of the Barnett Scorpion clutch. Have you checked with Barnett or any of the other clutch manufacturers about how their offerings will hold up?
I see the AIM VPC claims it lessens the clutch lever pull requirement.
The Barnett Scorpion lever pull for me is less than what my previous clutch required.


I've been warned against a Skorpion for this actually. they hold, but i know 4 local guys running them, all had the same complaint (grabbed like hell, but got VERY sticky after a few thousand miles...like it was constantly dragging/wouldnt release completely and adjustments didnt seem to help it at all.

right now, best option seems to be a Rivera Primo Pro clutch, middleweight spring, with a locker pressure plate. oughta keep lever effort equal (or less) than what I have now with a Barnett extra-plate with a heavy spring (which gets REAL old in traffic)
 
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Old Oct 12, 2013 | 03:00 PM
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Originally Posted by renegado
Hello everyone.
I´ve just finished my evo build, and I´m feeling some clutch slip in 4th and 5th at full throttle.
I already have a Barnett extra plate clutch kit, so I wanted to add an AIM VPC just to be sure.
But, I´m a little confused if I need to add a spacer to de Derby cover or not.
In the web there is a template but says that is only for 5 hole derby covers.
Has anybody used one of this? Can the template be used to check the Evo Derby?
Or should I order the spacer just to be sure?
Any info or experience with this would be great.

Best regards.

What state of tune is the bike in? Your clutch might just not be set up properly if you have under 100HP...
 
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Old Oct 12, 2013 | 03:01 PM
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Originally Posted by Jasper86
I've been warned against a Skorpion for this actually. they hold, but i know 4 local guys running them, all had the same complaint (grabbed like hell, but got VERY sticky after a few thousand miles...like it was constantly dragging/wouldnt release completely and adjustments didnt seem to help it at all.

right now, best option seems to be a Rivera Primo Pro clutch, middleweight spring, with a locker pressure plate. oughta keep lever effort equal (or less) than what I have now with a Barnett extra-plate with a heavy spring (which gets REAL old in traffic)
Wow!
I ain't heard that before.
Mine is as smooth as silk.
Do you know if they all followed Barnett's recommendations for install?
I am running a chain primary and Type F primary lube.
 
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Old Oct 12, 2013 | 03:39 PM
  #9  
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Originally Posted by megawatt
Wow!
I ain't heard that before.
Mine is as smooth as silk.
Do you know if they all followed Barnett's recommendations for install?
I am running a chain primary and Type F primary lube.
2 of them work for an independant harley shop, 1 being the owner. yea, he's usually pretty good about that stuff. I dont know. they might have been running older versions of the same clutch? not sure on details of their exact setups
 
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Old Oct 12, 2013 | 03:49 PM
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Originally Posted by Jasper86
2 of them work for an independant harley shop, 1 being the owner. yea, he's usually pretty good about that stuff. I dont know. they might have been running older versions of the same clutch? not sure on details of their exact setups
Thanks for the heads-up Jasper86, albeit too late for me.
Bummer how it worked out for them.
renegado, sorry for the hijack.
 
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