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Author Topic: Diamond Cut Jugs  (Read 6047 times)

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Cerdo

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Diamond Cut Jugs
« on: May 15, 2007, 06:58:09 PM »

Stealer is going to have my jugs off for a warranty oil leak. Do you guys think I should spring for the diamond cut jugs while they are off?????   Are they worth the $$$$  Do they cool better????? Any head work needed at this time while its apart. I'm already running the D&D Fatcat 2 into 1 exhaust, big sucker, zipperes ECM and auto tune module. Bike runs great!!! Respect your ideas and / or just looking for an excuse to spend more $$$$$$$$$$  LOL!
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Andy

bigdog257

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Re: Diamond Cut Jugs
« Reply #1 on: May 15, 2007, 07:51:22 PM »

Talk to Twolane. He had it done to his bike and it turned out very nice.


Bigdog
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RJ749

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Re: Diamond Cut Jugs
« Reply #2 on: May 15, 2007, 08:04:13 PM »

Stealer is going to have my jugs off for a warranty oil leak. Do you guys think I should spring for the diamond cut jugs while they are off?????   Are they worth the $$$$  Do they cool better????? Any head work needed at this time while its apart. I'm already running the D&D Fatcat 2 into 1 exhaust, big sucker, zipperes ECM and auto tune module. Bike runs great!!! Respect your ideas and / or just looking for an excuse to spend more $$$$$$$$$$  LOL!

It would be great tofeel comfortable with the work getting done and having the labor covered, my concern at this point would be if there is further warranty work that comes up related to the cylinders etc. and it got turned down because of the mods.

If you aren't concerned with the warranty on the engine relative to he cylinders and heads then I'd asy go for it, it looks great and as Bigdog points out Twolane is really happy with his mods.  View here Don's Diamond Cut project
« Last Edit: May 15, 2007, 08:07:10 PM by Rjob749 »
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DCFIREMANN

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Re: Diamond Cut Jugs
« Reply #3 on: May 15, 2007, 09:17:21 PM »

Had mine done when I did the Zippers build. It looks great. I would not worry about warranty issues.

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GMR-PERFORMANCE

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Re: Diamond Cut Jugs
« Reply #4 on: May 17, 2007, 11:44:24 AM »

We have them done for customer on a normal basis. Sorry but after testing several dozen sets we have not seen any lower temps. It really is a bling factor. One thing you do need to keep in mind is that it is best done before cylinder boring. As we have seen the cylinder get out of round from the cutting.
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SCRM-R

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Re: Diamond Cut Jugs
« Reply #5 on: May 17, 2007, 07:16:30 PM »

I think that their claim (and they have a patent on it) is not that they run cooler, but that they cool faster.  So, if I understand it correctly, if they run hot they will get cool faster when the air begins moving around them again.
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Rhino

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Re: Diamond Cut Jugs
« Reply #6 on: May 17, 2007, 08:49:58 PM »

I like helping people spend their money. Go for it and post a picture.

Rhino
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spydglide

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Re: Diamond Cut Jugs
« Reply #7 on: May 17, 2007, 09:01:18 PM »

We have them done for customer on a normal basis. Sorry but after testing several dozen sets we have not seen any lower temps. It really is a bling factor. One thing you do need to keep in mind is that it is best done before cylinder boring. As we have seen the cylinder get out of round from the cutting.
could you elaborate further on your experience regarding the out of round cylinder(s) from the diamond cutting?  ??? thanks, spyder
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HWYMAN1

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Re: Diamond Cut Jugs
« Reply #8 on: May 17, 2007, 10:17:41 PM »

I think that their claim (and they have a patent on it) is not that they run cooler, but that they cool faster.  So, if I understand it correctly, if they run hot they will get cool faster when the air begins moving around them again.
from diamond heads website: http://www.diamond-heads.com/companyhistory.html
irregular surface area creates more turbulence while moving thus creating more air fin contact which equal greater cooling plus increased surface area allows faster cooling as well. ( according to them) John
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nidan

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Re: Diamond Cut Jugs
« Reply #9 on: May 18, 2007, 06:25:53 AM »

I've heard that the powdercoat that frequently goes with the diamond cutting was responsible for the out of round cylinders , but it could be that both effect it. Definetly looks cool
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DCFIREMANN

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Re: Diamond Cut Jugs
« Reply #10 on: May 18, 2007, 07:26:51 AM »

I've heard that the powdercoat that frequently goes with the diamond cutting was responsible for the out of round cylinders , but it could be that both effect it. Definetly looks cool

BINGO WE HAVE A WINNER!!!!!

It is not the actual powder coating but the heating of the cylinders that causes the problem.

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spydglide

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Re: Diamond Cut Jugs
« Reply #11 on: May 18, 2007, 08:02:06 AM »

Hey DAWG, do they experience this problem w/ the initial powdercoating while building the motors at the factory?   :-\  spyder
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Re: Diamond Cut Jugs
« Reply #12 on: May 18, 2007, 03:04:48 PM »

ahem , yep the heat cycle that sets the powder coat would have been the more accurate way to phrase that . When I was looking at doing it , I was cautioned by the builder to have it done then bore the cylinders.
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ggraves427

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Re: Diamond Cut Jugs
« Reply #13 on: May 18, 2007, 04:54:54 PM »

I bought some new 95" jugs and SE Heads from Chicago HD for my wife's Fatboy and sent them directly to Las Vegas for Diamond Cut, absolutely no problems, she loves the complements. 
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DCFIREMANN

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Re: Diamond Cut Jugs
« Reply #14 on: May 18, 2007, 05:34:15 PM »

Hey DAWG, do they experience this problem w/ the initial powdercoating while building the motors at the factory?   :-\  spyder

SPYDER I also asked the same question. It seems the factory DOES NOT use a heat setting as high as most powder coaters use. I think it is a time thing but not completely sure.

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