There goes Tokyo!!!!! - Page 3 - Kawasaki Forum :: KawasakiWorld.com
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post #31 of 108 Old 01-28-2015, 03:09 AM
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Quote:
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Just wandering if you sonic tested the block before all the mods ?


Would it really make that much difference? [He's only a cartoon].

Great work btw.
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post #32 of 108 Old 01-28-2015, 04:03 AM Thread Starter
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Maxumis, going to run with standard bore. Plenty of meat between the bores. Scott did a lot of work with Wossner to get a piston for a race engine. Which I think is going to work pretty good in this app.
This block was in a running engine, with a few broken ring lands.
The welding did not cost me anything, took my buddy 20min.

So, out of the oven for some stress relief. I looked all over the net to get some specific science about stress relieving cast aluminum. Ton of info but nothing really specific for this app. 650° actually starts to move the aluminum but also weakens it. Scott thought 400° for an hour would be a nice heat soak.

Now off to millennium tech. They are going to check everything out, surface the deck and refinish the bores.

Trans and connecting rods are off to Cooper!!!!

cmg
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post #33 of 108 Old 01-28-2015, 03:57 PM
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Not much can be done with as-cast microstructure other than stress relieving.
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post #34 of 108 Old 01-28-2015, 09:38 PM
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Originally Posted by color me gone View Post
Maxumis, going to run with standard bore. Plenty of meat between the bores. Scott did a lot of work with Wossner to get a piston for a race engine. Which I think is going to work pretty good in this app.
This block was in a running engine, with a few broken ring lands.
The welding did not cost me anything, took my buddy 20min.

So, out of the oven for some stress relief. I looked all over the net to get some specific science about stress relieving cast aluminum. Ton of info but nothing really specific for this app. 650° actually starts to move the aluminum but also weakens it. Scott thought 400° for an hour would be a nice heat soak.

Now off to millennium tech. They are going to check everything out, surface the deck and refinish the bores.

Trans and connecting rods are off to Cooper!!!!

cmg
You guys have really put alot of thought into this , great to see and thanks for sharing ..
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post #35 of 108 Old 01-28-2015, 10:10 PM
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Would it really make that much difference? [He's only a cartoon].

Great work btw.


Keep us updated with your progress.
Popcorn at the ready
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post #36 of 108 Old 02-17-2015, 06:36 PM Thread Starter
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Just got my trans back from Cooper Performance. Thought this was a quick and informative YouTube clip. I'm sure most here know what a back cut is.

cmg

Last edited by color me gone; 02-17-2015 at 06:39 PM.
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post #37 of 108 Old 02-18-2015, 07:27 AM
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Very sweet build so far. As always, I'm excited to see the finished product.

"Any man who thinks he can be happy and prosperous by letting the government take care of him --- better take a closer look at the American Indian." Henry Ford
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post #38 of 108 Old 12-22-2015, 05:42 PM Thread Starter
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cmg
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post #39 of 108 Old 12-22-2015, 06:29 PM
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Feed the beast! Its going to be drinking a ton of E85 at 400+ HP :D

01 ZX-12R 8.84 @ 156.3 on dot tires, NA.... turbo 8.47 @ 164
00 ZX-12R 8.62 @ 165.2 no bars, slicks, 55 shot... turbo 8.32 @ 173
00 ZX-12R 1: 222.046 1.5: 226.390 Worlds Fastest NA Kawasaki
00 ZX-12R street turbo 1: 227.9 1.5: 234.1
00 ZX-12R LSR turbo 1: 249.5 1.5: 266.5 Worlds fastest ZX-12R CMG Racing RCC Turbos
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post #40 of 108 Old 12-23-2015, 02:45 AM
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Very nice
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post #41 of 108 Old 12-23-2015, 04:30 PM Thread Starter
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I thought this was interesting. One of my tb assemblies had just a machined bore for the throttle shafts. Another set has needle bearings. A upgrade for sure.





You have to get rid of these castings to make room for the injector bung.




Once welded you can drill the bore through the tb.



cmg
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post #42 of 108 Old 12-23-2015, 05:44 PM
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Nice work
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post #43 of 108 Old 01-01-2016, 06:00 PM Thread Starter
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Wossner custom tall deck turbo pistons. KZScott worked with Wossner to get us this piece. First class!!!
They measure in at 82.931mm at the skirt. Clearance spec is .07mm so it is right there. I will finish the bores at 83mm.



This is a stock 1199 piston. Notice how thin the metal is at the exhaust valve relief to the top of the 1st ring land.



One of the changes Scott requested. A lot more beef in this area.

cmg
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post #44 of 108 Old 01-01-2016, 06:10 PM
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Nice - what boost limit was recommended for these vs the standard Wossner?
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post #45 of 108 Old 01-01-2016, 06:12 PM
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Thicker top ring also and gas ported ;)

01 ZX-12R 8.84 @ 156.3 on dot tires, NA.... turbo 8.47 @ 164
00 ZX-12R 8.62 @ 165.2 no bars, slicks, 55 shot... turbo 8.32 @ 173
00 ZX-12R 1: 222.046 1.5: 226.390 Worlds Fastest NA Kawasaki
00 ZX-12R street turbo 1: 227.9 1.5: 234.1
00 ZX-12R LSR turbo 1: 249.5 1.5: 266.5 Worlds fastest ZX-12R CMG Racing RCC Turbos
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