Y2KZX12R
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posted May 29, 2011 12:27 PM
Big Tube zx14 pipe...
Thought you guys might like a spy shot..... the new prototype pipe for Competition CNC's zx14 race bike.
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Y2KZX12R
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posted May 29, 2011 12:38 PM
 Edited By: Y2KZX12R on 29 May 2011 20:43
Heres the intake side of the motor...
You can see the CNC cam clearancing marks in the head. Yes its got big cams.
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1badzx12r
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posted May 29, 2011 01:14 PM
Edited By: 1badzx12r on 29 May 2011 21:18
i like!!!! but back to small penis syndrome big block ..
but all that fanciness and modified stock fuel rail with stock injectors????
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smokinZX14
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posted May 29, 2011 02:50 PM
Very nice !!
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01smokes
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posted May 29, 2011 03:19 PM
quote:
i like!!!! but back to small penis syndrome big block ..
but all that fanciness and modified stock fuel rail with stock injectors????
I noticed that too lol bit if it works why fix it I would at least do a big rail from Compton
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Y2KZX12R
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posted May 29, 2011 04:52 PM
Edited By: Y2KZX12R on 30 May 2011 00:53
Yea its a modified stock rail. This whole setup is prototype stiff . eventually we are planning to offer the 50mm throttle bodies and the header to our customers to go with the CNC ported head.
The 06-07 injectors are 430cc/min.
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billeason
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posted May 29, 2011 06:17 PM
Edited By: billeason on 30 May 2011 02:18
BIG GAMS !!
quote:
Heres the intake side of the motor...
You can see the CNC cam clearancing marks in the head. Yes its got big cams.
DAMN' I 'm guessing .430 or bigger . Hee Hee ! Me likey..........
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1badzx12r
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posted May 29, 2011 07:25 PM
quote:
Yea its a modified stock rail. This whole setup is prototype stiff . eventually we are planning to offer the 50mm throttle bodies and the header to our customers to go with the CNC ported head.
The 06-07 injectors are 430cc/min.
with all the air your flowing and with all that oxygenated fuel your pumping .. i'd would think them 430cc's dry up in a hurry.. but hey your the man
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wrongway
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posted May 29, 2011 08:00 PM
I dont think anyone under 500 HP needs a fuel rail . When I went from 650 cc injectors to 930 cc injectors I kept the stock fuel rail and was able to add enough fuel for a bigger nos shot with E85...
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entropy
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posted May 29, 2011 11:00 PM
Jim,
EXCELLENT!!!!!!!!!!!!!!!!!!!!
Nice looking work on the big tube headers, who did the bending?
Did you shorten the intake track?
I'm thinking 430's will support that motor with duty cycle to spare.
I've got Marren/Bosch 440's on my mountain motor Busa, only running single digits on PC3r fuel at 11K to get 12.5 AF.
Will you be running that motor at Loring???
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1badzx12r
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posted May 30, 2011 02:25 AM
Edited By: 1badzx12r on 30 May 2011 10:44
quote:
I dont think anyone under 500 HP needs a fuel rail . When I went from 650 cc injectors to 930 cc injectors I kept the stock fuel rail and was able to add enough fuel for a bigger nos shot with E85...
My findings with E85 i couldn't flow enough fuel thru the input neck on the stock rail even with a high volume external pump .. it was chocking it down in the 90 degree bend area .. i too modified a stocker like the 1 muzzy sells so my pump service 2 injectors each now and used the old input as a return .. i only had 300hp.. i've got 660cc injectors and i know on 8lbs of boost those injectors are max out on E85 on a 1 to 1 @45psi set-up .. i can go from 40's to 100's in every box on the PC3 in the 100% throttle and log A/F never raise.. i have to use an FMU in order to get it to idle down low and supply enough fuel to cover a 10lb boost run 300hp or so
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Y2KZX12R
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posted May 30, 2011 03:19 AM
Edited By: Y2KZX12R on 30 May 2011 11:24
Bill, the cams are prototypes as well with modified acceleration rates based on some simulations we ran. Yes they are well over .450" lift to match the flow and velocity curves of the ports.
1bad, the 430's should be ok at 3 bar and 280 rwhp. We ran them in this config last year.
We are running the fuel rail in a loop with a walbro pump and external regulator not a dead end system like the oem.
Roy, thats about right . With Methanol you need to double your injector size. and then add a turbo and now you need even more injector.
Raise the peak operating rpm and you need even more injector. Remember RPM has an effect on injector sizing as well. the less time you have to get the required amount of fuel sprayed the faster it has to spray that fuel in that time window available.
Karl, when we make headers we buy as assortment of mandrel bent U bends and start from there. The megaphone is a modified one from the muzzy pro pipe we ran last year.
Once we get a final design on the pipe we will be offering it for the zx14 to go with our CNC ported heads.
The intake tract has actually been lengthened.
If everything goes as planned we will have it at loring again this year as well as a 2011 zx10. Rickey Gadson is riding for us again this year. We will have the long arm on it for some drag racing first and then put the shorter arm back on for Loring.
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RICH CRAFT 1
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posted May 30, 2011 08:02 AM
Jim I like the way those head pipes look! I use a brocks pipe as most people do, but from day one I was concerned with the way that head pipe hooks up to the exhaust port ? The Brocks pipe uses a outward flange to meet the gasket and actually funnels inward a small bit. I guess the funneling in could help the back pressure but would also hurt the total flow. I actually like the factory pipes the way they fit the port, they turn inward to meet the gasket this allows a 1/8" all way around the port to help stop back flow of the cam. Ever race car header i ever seen the head pipe is bigger than the exhaust port to help with cam reversion. I am Curious See how your flanges meet the gasket.
Ken
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Y2KZX12R
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posted May 30, 2011 08:53 AM
The head is CNC machined out in the flange area to accept the 1.75" primary and then steps up to 1.875". The exhaust port is cnc machined to match the 1.75" primary tube.
We designed this header bo make the most peak power above 10,000 rpm with no reguard for power below 6000 rpm.
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oldkawboy
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posted May 30, 2011 05:29 PM
Everything looks great Jim. Can't wait to see what it runs at Loring.
Dan
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Y2KZX12R
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posted May 31, 2011 02:29 AM
Dan, are you still going to Loring? Are the boys going?
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oldkawboy
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posted May 31, 2011 04:33 AM
Me & Momma will be headed up. I registered last week and we're looking forward to it.
Too far for the boys with so little vacation. They're planning on making the last couple Maxton events.
Can't wait to see your bike make some laps.
Dan
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billeason
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posted May 31, 2011 06:03 AM
Edited By: billeason on 31 May 2011 14:05
quote:
The head is CNC machined out in the flange area to accept the 1.75" primary and then steps up to 1.875". The exhaust port is cnc machined to match the 1.75" primary tube.
We designed this header bo make the most peak power above 10,000 rpm with no reguard for power below 6000 rpm.
Good lord that's a radical ex, port size relative to all others.
Wow no wonder your doing your own header/ port match. I am very anxious to see what that bike runs. Once the bike/ motor is dialed in it should make some news........
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CrotchRocket
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posted May 31, 2011 07:02 AM
Damn Jim...Its like what woman say, Bigger is Better...lol
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knecum
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posted May 31, 2011 06:14 PM
quote:
Jim I like the way those head pipes look! I use a brocks pipe as most people do, but from day one I was concerned with the way that head pipe hooks up to the exhaust port ? The Brocks pipe uses a outward flange to meet the gasket and actually funnels inward a small bit. I guess the funneling in could help the back pressure but would also hurt the total flow. I actually like the factory pipes the way they fit the port, they turn inward to meet the gasket this allows a 1/8" all way around the port to help stop back flow of the cam. Ever race car header i ever seen the head pipe is bigger than the exhaust port to help with cam reversion. I am Curious See how your flanges meet the gasket.
Ken
that looks familiar !!
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Y2KZX12R
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posted June 01, 2011 03:35 AM
quote:
that looks familiar !!
Yea, Its just like our grudge gsxr1000 exhaust port we did last year and the turbo zrx 1200 exhaust port we did two years ago.
Same math and flow bias. Isn't software great !!!
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entropy
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posted June 01, 2011 03:40 AM
Jim,
i just wanna see this beast run at loring!
Are we gonna have a lil friendly head to head competition? 
Karl
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Y2KZX12R
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posted June 01, 2011 06:35 AM
Edited By: Y2KZX12R on 1 Jun 2011 14:40
quote:
Jim,
i just wanna see this beast run at loring!
Are we gonna have a lil friendly head to head competition?
Karl
Yea that's what racing is all about!!
The Busa has an apparent aerodynamic advantage from what my buddy Bill D. the aerodynamics engineer from Northrop/Grumman says. We spent hours going over it all.
The zx14 has a larger frontal area due to the head lamp design.
And the zx14 is limited to 1570 cc.... but were going to see what we can do. We will be dyno tuning the bike Friday... well see what it makes for power. Its going to be hard for us to overcome the cc advantage of the Busas.
Whats your 1635cc Busa making for power now?
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entropy
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posted June 01, 2011 09:21 AM
The latest Carp head/pipe combo made 277-279 STD on JC's DJ dyno a couple weeks ago. The pwr has a 10.6-11.2rpm sweetspot i am (hopefully) geared for.
In a couple weeks i'll bring my other motor to JC's with yr head on it, see how it compares.
I am really looking forward to seeing how yr new motor and Bob's new head run at Loring.
Dyno is one thing, 1.5mi flat out is another...
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Y2KZX12R
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posted June 01, 2011 01:17 PM
Edited By: Y2KZX12R on 1 Jun 2011 21:24
Nice power there Karl. Whats that in SAE HP? about 270-272?
Are both motors 1635cc? same cams and pistons?
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