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BIKELAND > FORUMS > DRAGBIKE ZONE.com > Thread: CNC valve job or hand lapping? NEW TOPIC NEW POLL POST REPLY
06redzx14


Pro
Posts: 1022
posted October 08, 2009 07:48 AM        
CNC valve job or hand lapping?

is there any difference in power between the two? I've noticed that the CNC port work and valve job is almost double the price of hand porting and lapping the valves. I'm new to all this
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06 alien head, no flies, PC+hub, 16/45 44 43, air shifter, dry shot

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tcchin


Zone Head
Posts: 867
posted October 08, 2009 07:50 AM        
http://www.competitioncnc.com/
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06redzx14


Pro
Posts: 1022
posted October 08, 2009 07:55 AM        
can't get them on the phone. there is no chart listed for a zx14
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06 alien head, no flies, PC+hub, 16/45 44 43, air shifter, dry shot

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osti33


Needs a job
Posts: 2973
posted October 08, 2009 01:23 PM        
quote:
can't get them on the phone. there is no chart listed for a zx14


Leave him a message. He's kind of a one man show. He will call you back.

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KZScott


Needs a life
high on speed
Posts: 7235
posted October 08, 2009 04:31 PM        
Jim will take care of what you need
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00 ZX-12R Fastest NA Kawasaki in the world 1: 222.046 1.5: 226.390 Loring AFB
00 ZX-12R street turbo 1: 227.9 1.5: 234.1 Loring AFB
00 ZX-12R LSR turbo 1: 263.1 1.5: 266.5 Loring AFB Worlds fastest ZX-12R
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Y2KZX12R


Needs a job
CompetitionCNC.com
Posts: 3762
posted October 09, 2009 10:18 AM        
Sorry, I was out of the shop the last few days. And the guys in the shop don't answer the phone. Shit they cant even here it half the time.

We have 2 versions of the zx14 port. And both can be modified to suit your needs for port velocity.

The valvejob we do is a total reshaping of the seat shape. We change the geometry.

Lapping is the polishing of the contact area of the seat (45 degree) which is a separate operation and for a different purpose.

In any case we are going to have a 3rd zx14 head in a few months for BIG displacement engines aimed to make big peak power numbers for LSR.

Stay tuned.
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Y2KZX12R
CompetitionCNC.com

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WRECKSHOP


Expert Class
Posts: 359
posted October 12, 2009 07:37 AM        
Cool new information for the ZX-14 cylinder head development.....
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06redzx14


Pro
Posts: 1022
posted October 13, 2009 11:15 AM        
Jim, I called and left a message for you. Trying to see which head is best for a 1417 setup for NOS with stock cams. shoot me a price to ni2k6klub@hotmail.com or at the number I left on the voicemail.
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06 alien head, no flies, PC+hub, 16/45 44 43, air shifter, dry shot

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Y2KZX12R


Needs a job
CompetitionCNC.com
Posts: 3762
posted October 13, 2009 07:12 PM        
Ok thanks.
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Y2KZX12R
CompetitionCNC.com

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WRECKSHOP


Expert Class
Posts: 359
posted October 17, 2009 08:15 AM        
CNC Valve Jobs are the WAVE of the future. The Newen BB Contour CNC Single Point Cutter Machine is more precise and give's you a more better seal and a quicker seal of the valves...Man, I wish JIM would get one of these machines !!! He probably don't need one because he knows all of the tricks to get a better and quicker valve seal anyways.....
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Y2KZX12R


Needs a job
CompetitionCNC.com
Posts: 3762
posted October 17, 2009 04:13 PM        
quote:
CNC Valve Jobs are the WAVE of the future. The Newen BB Contour CNC Single Point Cutter Machine is more precise and give's you a more better seal and a quicker seal of the valves...Man, I wish JIM would get one of these machines !!! He probably don't need one because he knows all of the tricks to get a better and quicker valve seal anyways.....


Actually I want a BB Contour in a bad way.

We use a Sunnen VGS 20 now and it works good, but its much more difficult to use and get a really good valve job out of. The carbide cutters have to have some rake ground in them and they have to be sharp or seat runout can get to be a problem.

The Newens are CNC so you program the profile in and it uses a generic single point insert style cutter to cut any shape you tell it. Its nice because you don't have to make a cad drawing of the seat profile shape and send it to Sunnen to have them make you that cutter for $50 each. We have dozens of carbide cutters and I have designed many custom shapes. So we could safe money that way.

The BB I think is about $80,000 I'm hoping a nice used one will come my way one of these days.
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Y2KZX12R
CompetitionCNC.com

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MadMike


Moderator
FEAR THE BLACK FLAG!!!!!!!!
Posts: 6579
posted October 17, 2009 07:00 PM        
Hey Jim, my bike is coming apart soon, and I am going to ship my head to you to check out... (Spaz headowork) I will call you when it gets close...

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200-MPH CLUB MEMBER!

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Y2KZX12R


Needs a job
CompetitionCNC.com
Posts: 3762
posted October 18, 2009 09:24 AM        
OK Mike. Just let me know.
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Y2KZX12R
CompetitionCNC.com

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NINJA12


Needs a job
Posts: 3310
posted October 20, 2009 04:27 PM        
quote:
Sorry, I was out of the shop the last few days. And the guys in the shop don't answer the phone. Shit they cant even here it half the time.

We have 2 versions of the zx14 port. And both can be modified to suit your needs for port velocity.

The valvejob we do is a total reshaping of the seat shape. We change the geometry.

Lapping is the polishing of the contact area of the seat (45 degree) which is a separate operation and for a different purpose.

In any case we are going to have a 3rd zx14 head in a few months for BIG displacement engines aimed to make big peak power numbers for LSR.

Stay tuned.


What do you consider to be a big zx14 engine?

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Y2KZX12R


Needs a job
CompetitionCNC.com
Posts: 3762
posted October 20, 2009 05:37 PM        
1580 + cc
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Y2KZX12R
CompetitionCNC.com

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