biggmoinc
Zone Head
Posts: 747
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posted November 25, 2009 05:23 PM
my guess is the supercharger would be better cause power out the corners would be instant versus having to spool it up for the turbo to kick in
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07 ZX14 bmc filter, muzzy m14, 16/44,66",auto shift, 6'3, 204lbs/1.54/3.99/6.03@120/7.8/9.32@147
biggmo@aol.com
  
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johnbull
Expert Class
Posts: 314
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posted November 26, 2009 08:26 AM
Yep, thats why I have chosen the supercgarger for my setup, more of a linear power curve than a turbo and a lot less heat than a turbo.
Can anyone with turbo experience on these engines give me an idea of what sort of boost is safe on standard compression ratio i.e 12:1??
Also, what sort of power can the standard rods take??? Is it a must to go for steel rods straight away??
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John Bul Racing. Malta.
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zxbob
Pro
Posts: 1692
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posted November 26, 2009 08:36 AM
I was running 8 to 9 psi with no issues on my turbo. I dont know what the stock rods
will handle but, I hear their pretty tough !
The clutch was my weak link . . . . . started slipping at 300 horse.
Bob
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Good parts aint cheap and cheap parts aint good !
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dubious
Needs a life
Needs more time to ride!
Posts: 8442
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posted November 26, 2009 05:04 PM
the rods will take more boost than the pistons ever will, but in order to make a big boost suitable piston, you need rods that are 2mm shorter to increase the ring land
12 psi on stock pistons is really pushing things from what I have seen and heard.
Chris Jones big turbo bike don't run hot, and have very very little spool lag, if any.
It might be more noticable with a car though, as weight is a also a factor in lag.
Ignition timing, and fueling makes a huge difference, and he seems to have it all figured out with the secondary injectors.
The small turbo is what creates the most heat, when you push the curve in the turbo map.
With intercooler space of a car, you could run very low inlet temps.
Formula 1 cars made so much HP on turbo, that they banned them just too damn fast and too much power.
____________
natural selection.....
destiny will overcome intervention.
Some are not worthy of the effort.
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johnbull
Expert Class
Posts: 314
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posted November 27, 2009 01:12 AM
quote:
I was running 8 to 9 psi with no issues on my turbo. I dont know what the stock rods
will handle but, I hear their pretty tough !
The clutch was my weak link . . . . . started slipping at 300 horse.
Bob
Thanks Bob, I'm looking at starting off with about 6-7 PSI of intercooled boost from the blower since you say you've had no issues with 8-9 PSI on your bike. When you mention 8-9 PSI this is on standard compression and standard rods correct?
Looking forward to receiving the blower and getting down to fitting on the car.
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John Bul Racing. Malta.
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zxbob
Pro
Posts: 1692
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posted November 27, 2009 03:59 AM
All stock internals . . . except the lock up clutch.
Bob
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Good parts aint cheap and cheap parts aint good !
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johnbull
Expert Class
Posts: 314
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posted November 27, 2009 03:33 PM
quote:
All stock internals . . . except the lock up clutch.
Bob
And I imagine thats without running an intercooler right?
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John Bul Racing. Malta.
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KZScott
Needs a life
high on speed
Posts: 7235
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posted November 27, 2009 04:02 PM
check out an RCC ultra kit. water to air IC. supposed to be able to run 18 psi/380hp on pump gas and an easy 550 on race fuel. thats on a busa(im guessing low compression), but the same rules apply as long as the motor is built to handle it.
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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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dubious
Needs a life
Needs more time to ride!
Posts: 8442
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posted November 27, 2009 10:20 PM
John, you are correct, Bob was not running Intercooler.
RCC doesn't make a kit for the zx14.
Richard will if you leave the entire bike.
____________
natural selection.....
destiny will overcome intervention.
Some are not worthy of the effort.
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KZScott
Needs a life
high on speed
Posts: 7235
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posted November 27, 2009 11:02 PM
its in a car so a kit for a 14 isnt required. my point was have a look, and design something yourself to fit the car.
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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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johnbull
Expert Class
Posts: 314
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posted December 07, 2009 09:29 AM
At the beginning of this thread we were talking about fuel octane and fuel AFR for the normally aspirated ZX14 engine and everyone seemed to agree that round about 12.8 AFR is the best for power.
What about when running boost? The supercharger we are installing should give about 7 PSI of boost. What AFR would you guys suggest?
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John Bul Racing. Malta.
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zxbob
Pro
Posts: 1692
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posted December 07, 2009 04:09 PM
11.0 to 11.5 is a safe AFR.
Bob
____________
Good parts aint cheap and cheap parts aint good !
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KZScott
Needs a life
high on speed
Posts: 7235
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posted December 08, 2009 08:51 AM
quote:
11.0 to 11.5 is a safe AFR.
Bob
the extra fuel keeps things cool
____________
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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