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 91 
 on: December 15, 2014, 12:24:24 PM 
Started by leman - Last post by fx28
Like some of the above posts, the pto end of crank is hardened. Some of them are not very easy to turn down, would be better to have it ground. Turning off .060 a side as hard as it is plus add the interruption of the keyway, making it hard to get it round is why it is desirable to have it ground. Also getting the radius put back in right.
    I have done it before and had no problems, just might be easier to find a 1" crank. The commands, I believe are mostly interchangeable other than the 30HP. Just check to make sure if it uses the shim or not to be sure of end play.

Chuck

 92 
 on: December 15, 2014, 10:30:47 AM 
Started by skyguynca - Last post by royalblu68f100
Sounds like I need pictures!!!!!!!

 93 
 on: December 15, 2014, 10:28:11 AM 
Started by Murray_wide_body - Last post by royalblu68f100
You can do almost anything your budget will allow.  The class you are racing in will determine the amount of mods you are allowed to do.

 94 
 on: December 15, 2014, 07:36:49 AM 
Started by leman - Last post by Darkviper
18 to 22 is 1inch. 25 up is 1 1/8

 95 
 on: December 14, 2014, 04:13:12 PM 
Started by Skeeter - Last post by Jeff Digou (Pitguy)
Any more updates ?

 96 
 on: December 14, 2014, 12:05:18 PM 
Started by leman - Last post by cycloneracer
If you can find a stock 1" crank you will be fine.  When you turn it down you remove the hardened case.  That is why they break. 

As for the cost of the Kerber clutch it is expensive but it is a superior clutch.   It has a special bearing on it that doesn't chew up the crank.  I have 2 full seasons on mine and it still looks new.  All the parts are hardened.  That is why it is so expensive. 

 97 
 on: December 14, 2014, 11:59:07 AM 
Started by leman - Last post by leman
Zach Kerber has a 1 1/8" clutch.  No need to turn it down. 

if you turn it down and your making any power it will break. 

Even if i find and use a factory 1" crank? 

How come you rarely hear about fully build Vanguards or Intek cranks breaking?  Those are only 1".  I know the potential for making power with those arent as great as it is with the Kohlers, but are they really that far in a league of their own in torque being produced?


we have run cranks turned down to one inch to use a noram star and haven't had a problem ,i would love to try the 1 1/8 clutch but can't justify the cost.

Thanks, im in the same boat and was also wondering if there was any success with doing this.

 98 
 on: December 14, 2014, 11:53:22 AM 
Started by leman - Last post by BosRos
we have run cranks turned down to one inch to use a noram star and haven't had a problem ,i would love to try the 1 1/8 clutch but can't justify the cost.

 99 
 on: December 14, 2014, 11:36:37 AM 
Started by leman - Last post by cycloneracer
Zach Kerber has a 1 1/8" clutch.  No need to turn it down. 

if you turn it down and your making any power it will break. 

 100 
 on: December 14, 2014, 11:19:23 AM 
Started by redline - Last post by birdman_express
I can light it on fire where it sits too. I would do that for you.

Good friends like you are so hard to find.  love

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