gremlin
Novice Class
Posts: 87
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posted January 02, 2008 07:43 PM
ZX 14 08 vs 07 comparison-MCN
The blokes across the pond have done a good job explaining the basic differences between the 07 and 08 ZX 14, testing both at what appears to be an airport runway. There is also a dyno chart overlaying both models for horsepower and torque.
Bottom Line: Top End HP is the same, but the torque between 4K-6K is substantially improved.
Link: www.MCN.com
(Technically challenged here...can anyone help with the link?
  
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fastestbusaaround
Needs a life
I eat Fish...
Posts: 7889
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posted January 02, 2008 10:01 PM
 Edited By: fastestbusaaround on 2 Jan 2008 22:05
Link fixed: http://www.motorcyclenews.com/MCN/News/newsresults/videos/2008/January/jan0208kawasakizzroldvsnew
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FYYFF!!!
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ninja12
Needs a job
Posts: 3310
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posted January 02, 2008 10:09 PM
Lots of talking to say the 08 open the butterflies earlier.
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BobC
Pro
Posts: 1736
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posted January 03, 2008 04:13 AM
Haven't read it yet, my wife's bringing it home tonight. It's not quite as simple as opening the butterflies earlier. The Kawasaki press release indicates that the cylinder head flows better to win back the bhp lost in the 3 Cat exhaust system, so surely when the restrictive standard system is gathering dust at the back of the garage and a Titanium full system is fitted the top-end should be better than the 06/07 in a similar state of tune.
At least that's what I'm hoping.
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Candy Thunder Blue 2006 ZZR1400
Stock wheelbase
Max: 205.4 mph in 1.25 miles
2012 ZZR1400 in Golden Blazed Green
Brock CT Full System. etc
Max: 203.1 in 1 mile (so far)
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Y2KZX12R
Needs a job
CompetitionCNC.com
Posts: 3762
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posted January 03, 2008 04:19 AM
I've compared the 08 head to the 07. No changes other than the air injection port in the exhaust port is bigger.
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Y2KZX12R
CompetitionCNC.com
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BobC
Pro
Posts: 1736
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posted January 03, 2008 04:22 AM
Edited By: BobC on 3 Jan 2008 06:06
quote:
I've compared the 08 head to the 07. No changes other than the air injection port in the exhaust port is bigger.
Just looked again at the data, you're right it's the secondary air ports that are 20% larger and the air switching valve that flows more air, which is all about emissions levels. The injectors lateral spray angle has gone from 15 to 20 degrees, other wise it seems to be the same. Kawasaki are still claiming more peak power for the 2008 though, perhaps it's nominal (aka small).
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Candy Thunder Blue 2006 ZZR1400
Stock wheelbase
Max: 205.4 mph in 1.25 miles
2012 ZZR1400 in Golden Blazed Green
Brock CT Full System. etc
Max: 203.1 in 1 mile (so far)
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ninja12
Needs a job
Posts: 3310
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posted January 03, 2008 12:46 PM
I don't see anything that adds up to new hp.
Same bore , stock, head and compression. What did I miss other than tune?
Every 06 vs 08 dyno chart I see show 1-2 hp difference, with 08 getting the edge down low.
Anybody got 2 bikes 06/ 07 they can dyno , I'll bet the the 06 Blue is 1-2 hp over any other color. 
Add 3 degrees of timing, 5 more psi to the tire, wd40 the chain and dyno on a cooler evening and I'll bet either will stomp these old dyno numbers. No knocking the 08
just don't see where they upgraded the 08.
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Ojref
Expert Class
Posts: 336
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posted January 03, 2008 06:11 PM
Edited By: Ojref on 3 Jan 2008 18:14
quote:
I don't see anything that adds up to new hp.
Same bore , stock, head and compression. What did I miss other than tune?
Every 06 vs 08 dyno chart I see show 1-2 hp difference, with 08 getting the edge down low.
Anybody got 2 bikes 06/ 07 they can dyno , I'll bet the the 06 Blue is 1-2 hp over any other color.
Add 3 degrees of timing, 5 more psi to the tire, wd40 the chain and dyno on a cooler evening and I'll bet either will stomp these old dyno numbers. No knocking the 08
just don't see where they upgraded the 08.
Likely ignition curve, optimized ECU program and better fuel atomization with the change in the injector angle. A few degrees of timing can add up. They could also be dialing the cam timing a bit to change the spread of the powerband as well. The dyno cannot measure the effect of ram air, I sure with that in the mix the output on the 08 is likely 7-9 HP higher than earlier models.
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2006 Kawasaki ZX-14 Ninja, Red now with mo' Brock's in my lyfe
1991 Yamaha Vmax - Because I need a mule to carry the manhood
2002 Ford Lightning - Ford GT Aluminum block engined, 802HP 911TQ now WhippleCharged
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busajack5
Expert Class
Rocket lll
Posts: 173
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posted January 07, 2008 11:09 AM
Anyone know if the stock headers are the same dia.They say the cross over pipes are larger.Anyone know for sure?
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Jack
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