entropy
Moderator
Posts: 8671
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posted January 29, 2008 12:47 AM
 Edited By: entropy on 29 Jan 2008 00:51
Thx MadMike: haven't seen one of these in 6 years!!!
A Y2K ZX12 head with no welding on it, no burned/loose seats, no sloppy guides, no lil dents where pistons have been hitting, never been skimmed, no helicoils anywhere. Damn sure time for me to fuk it up.
Today it'll travel to Rick Stetson to be bored for Busa buckets. This poor pristene bastid doesn't know what it's in for 
Thanks to MadMike for sending it to me so fast!
I owe you (another) one 
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KZScott
Needs a life
high on speed
Posts: 7235
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posted January 29, 2008 05:33 AM
Karl, whats the benefit of larger buckets? do the stock ones get rocked side to side a bit with your huge cams?
what kind of a port job will it get? the same as the one with Jims special seat cut? or a new test design?(with the same seat cut?)
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01 ZX-12R 8.84 @ 156.3 no bars, DOT tires. Pump Gas, NA.... turbo 8.47 @ 164.
00 ZX-12R 8.62 @ 165.2 no bars, slicks, Pump Gas, 55 shot.... turbo 8.32 @173
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
CMG Racing RCC Turbos
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entropy
Moderator
Posts: 8671
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posted January 29, 2008 07:05 AM
the higher lift cams overrun the bucket and prematurely wear the cams. Oversized buckets cure it.
The port job will incorporate 2 critical dimensions Smallest Cross sectional area and throat to valve % as well as matching boots to head and a custom seat cut.
I am not experimenting, rather duplicating the excellent performance gained in my current test head on a fresh head.
Jim will be doing the work, and fine work he does.
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osti33
Needs a job
Posts: 2973
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posted January 29, 2008 01:41 PM
quote:
Jim will be doing the work, and fine work he does.
+1
Nice stuff for sure.
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madmike
Moderator
FEAR THE BLACK FLAG!!!!!!!!
Posts: 6579
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posted January 29, 2008 04:24 PM
You dont owe me Jack.... well maybe some jack we can drink together!!!!
glad it made it safe and sound! and I can not wait to get those cams in the bike!!!! I am sure it will take me over the 200 mark!!!! yea! and for that I Owe you BIG!!!
MM
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200-MPH CLUB MEMBER!
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oldkawboy
Needs a job
Posts: 2125
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posted January 29, 2008 06:24 PM
I feel the love.......can I join in? :-)
Dan
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tcchin
Zone Head
Posts: 867
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posted January 29, 2008 07:54 PM
quote:
Karl, whats the benefit of larger buckets? do the stock ones get rocked side to side a bit with your huge cams? what kind of a port job will it get?
Are we still talking about motors? Larger buckets are always better, regardless of what we're talking about.
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KZScott
Needs a life
high on speed
Posts: 7235
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posted January 29, 2008 08:59 PM
arent they heavier though? there has to be a limit....
____________
01 ZX-12R 8.84 @ 156.3 no bars, DOT tires. Pump Gas, NA.... turbo 8.47 @ 164.
00 ZX-12R 8.62 @ 165.2 no bars, slicks, Pump Gas, 55 shot.... turbo 8.32 @173
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
CMG Racing RCC Turbos
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krexken
Zone Head
Posts: 732
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posted January 29, 2008 09:20 PM
Rick repaired the chewed up bucket bore on my old 1361 head. Did a fine job.
Head is now at Y2K's getting the Entropy special valve job!
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entropy
Moderator
Posts: 8671
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posted January 30, 2008 12:25 AM
quote:
quote:
Karl, whats the benefit of larger buckets? do the stock ones get rocked side to side a bit with your huge cams? what kind of a port job will it get?
Are we still talking about motors? Larger buckets are always better, regardless of what we're talking about.
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entropy
Moderator
Posts: 8671
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posted January 30, 2008 12:35 AM
quote:
arent they heavier though? there has to be a limit....
the std Busa buckets are only about 1.5mm? bigger than ZX12's, not much weight difference.
Amazing that such a lil difference in bucket diameter makes a significant difference in cam wear on a high-ish lift cam.
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entropy
Moderator
Posts: 8671
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posted January 30, 2008 12:37 AM
quote:
Rick repaired the chewed up bucket bore on my old 1361 head. Did a fine job.
Head is now at Y2K's getting the Entropy special valve job!
hey Ken! You are going to the right place for head work!
BTW: I didn't realize it till talking to Jim yesterday, that Jim's shop does bucket well boring also. Full service!
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entropy
Moderator
Posts: 8671
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posted January 30, 2008 12:39 AM
Edited By: entropy on 30 Jan 2008 00:44
quote:
I feel the love.......can I join in? :-)
Dan
sure, but it's your turn to pay for the room ... 
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aliveagain
Needs a life
Posts: 5033
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posted January 30, 2008 05:28 AM
quote:
quote:
quote:
Karl, whats the benefit of larger buckets? do the stock ones get rocked side to side a bit with your huge cams? what kind of a port job will it get?
Are we still talking about motors? Larger buckets are always better, regardless of what we're talking about.
I would of thought there'ld be a requirement to display a TFA shirt in all pics!
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I wondered why the baseball kept getting bigger. Then it hit me.
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sleeperbusa
Novice Class
Posts: 73
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posted January 30, 2008 06:59 AM
Karl,
I don't know how ya did it, but that lady loves you way too much.
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2008 Hayabusa.
64", stock clutch, stock gears, foot shifting,1441cc, 8.98 at 157mph at 260 pounds. Holdin it down for the big fellas..
2013 ZX14R.....to be continued.
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entropy
Moderator
Posts: 8671
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posted January 30, 2008 09:58 AM
yes indeed i am VERY fortunate in the wife department.
Assuredly alot to do with me pretending not to understand Spanish, and her pretending not to understand English.
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VincentHill
Needs a life
Posts: 6520
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posted January 30, 2008 11:19 AM
I have 2 heads that are as described! (Well I had 2 and now 1 with a tiny bit of welding near a seat to match the CC's. I did have a 3rd head that was all chewed up that someone tried to sell me as a good head and I told him that he never need to offer me anything else! We arer not in the same planet on what was good and what was not!
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Made History @ Daytona and still one fast old man!!
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entropy
Moderator
Posts: 8671
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posted January 30, 2008 12:50 PM
hey Vincent!
you getting yr nOS-mobile ready for Maxton in April?
We are rooting for you!
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Y2KZX12R
Needs a job
CompetitionCNC.com
Posts: 3762
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posted January 31, 2008 04:25 AM
quote:
BTW: I didn't realize it till talking to Jim yesterday, that Jim's shop does bucket well boring also. Full service!
Yep, bucket boring is very simple. We do repairs on bucket bores all the time. They can be sleved also if need be. We can do anything to an engine or cylinder head you can imagine, and even things you never imagined.
Karl, now that the stage 2 and 3 busa designs are done and in testing I'm starting on an all out HP head for the 12r next week. I finally got it scheduled in so I might actually get my bike on the road this year. I didnt have time to ride it last year anyway.
A stage 1 will have std buckets and valves with CNC porting and a new seat design. Intended for a 1200-1270 cc engine on the street.
The stage 2 will have Busa buckets (or KW), CNC porting, new seat design, o/s valves, and a much reworked chamber design. Intended for 1375-1427cc and big cams for all out power. It will need some ecu mods to rev to the peak power output and some lateral gas ported pistons to match. The target hp for the 1375 is 235 rwhp. We'll see how close we can get. 
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Y2KZX12R
CompetitionCNC.com
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entropy
Moderator
Posts: 8671
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posted January 31, 2008 05:59 AM
Jim,
Looks like my #2 head is gonna hot yr shop at exactly the right time!!!!
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VincentHill
Needs a life
Posts: 6520
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posted January 31, 2008 09:49 AM
I am an Old Man and just trying to clear my filled plate! I put a lot of things on the back burner and it it taking a while to clear. The good news is that the plate is less full and I have everything I need to finish my Rag. I hope to be ready by September or at least October. If I am not right I am not going anywhere
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Made History @ Daytona and still one fast old man!!
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entropy
Moderator
Posts: 8671
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posted January 31, 2008 10:10 AM
quote:
I am an Old Man and just trying to clear my filled plate! I put a lot of things on the back burner and it it taking a while to clear. The good news is that the plate is less full and I have everything I need to finish my Rag. I hope to be ready by September or at least October. If I am not right I am not going anywhere
I can understand!
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