Drowland
Zone Head
Posts: 733
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posted May 23, 2004 04:35 AM
ZX10R High Compression Gasket
Under performance section on Kawasaki home page for the 10R there is a High Compression Gasket for sale. Does anybody know anything about this? Power? Pro's & con's
   
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DKET
Expert Class
Posts: 189
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posted May 23, 2004 04:51 AM
Definately would not hurt the power curve . I would measure the piston to valve clearance and possibly skim the head . You can run a max of 13-13.2 to 1 compression on pump premium . Probably without measuring each bike since the piston to valve clearance will be different on each bike , a good clean up skim and the thinner gasket would possibly put the 10R at 13-1'ish comp .
I would measure the P to V clearance and piston to HEAD clearance . Make sure you have enough to install the thinner gasket . The engine builder pros here can help more .
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big daddy
Zone Head
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posted May 23, 2004 08:10 AM
With Kawi offering the gasket straight off their website one would assume the gasket is a simple install without any major complications but as some have mentioned the VtoP / head clearance isn't always exact from model to model so a little investagative work may be in order here.
BD
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Drowland
Zone Head
Posts: 733
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posted May 23, 2004 09:42 AM
Research Research! I was thinking maybe those test bikes from SportRider and other magazines maybe had these gaskets? If so, I need to get one. Thanks Everybody!
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worm~hole
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posted May 23, 2004 10:09 AM
...hmmm...interesting question, drowland....
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RobMuzzy
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posted May 23, 2004 10:24 AM
MUZZYS has them.
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DKET
Expert Class
Posts: 189
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posted May 23, 2004 10:30 AM
 Edited By: DKET on 23 May 2004 11:31
So Rob , with the thinner gasket , what be the final comp ratio ?
Price ??
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DKET
Expert Class
Posts: 189
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posted May 23, 2004 10:33 AM
quote:
Research Research! I was thinking maybe those test bikes from SportRider and other magazines maybe had these gaskets? If so, I need to get one. Thanks Everybody!
Worm , I was also going to mention this . But I was rather reluctant to get into another sluggin match here on the board . LOL !!!
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worm~hole
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posted May 23, 2004 10:38 AM
...we learn sumpthin' new everyday 
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Zed
Expert Class
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posted May 23, 2004 10:41 AM
Hey! They are only supposed to be fitted to the green machines...
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Drowland
Zone Head
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posted May 23, 2004 02:48 PM
Hey Rob! Well are u just going to blue ball us? Tell us something about them? Thanks
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swft
Needs a life
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posted May 23, 2004 08:17 PM
Kee-rist! It's a fewking thin head gasket. It's prolly good for half a point of compression. Seems like you guys just want to pull your puds and speculate about this or that. If you really give a shit, just buy the damned gasket and put it on!
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whitesands26
Novice Class
Posts: 84
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posted May 23, 2004 08:25 PM
Edited By: whitesands26 on 23 May 2004 21:26
Could a gasket really make that big of a difference ?
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bovinespongiformencephalo
Pro
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posted May 23, 2004 08:31 PM
If it made your valves hit something, sure.
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swft
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posted May 23, 2004 08:31 PM
Umm...Half a point could make a bit of difference. As an example, the Muzzy 1270 kit for the ZX12R is only a 70cc increase, but bumps the compression a full point. Typical gain is on the order of 30 hp, from 165 stock to 195 at the back tire. Since you are starting with smaller displacement, and starting at a higher compression ratio to start with, I wouldn't expect the gains to be commesurate. Maybe more like 8 to 10 hp.
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DKET
Expert Class
Posts: 189
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posted May 24, 2004 05:02 AM
TAFB posted this a few pages ago . He was talking about his Kawasaki catalog he got in the mail .
Here's what the catalog states:
Adjustable ECU -- allows fine tuning of fuel, ignition and secondary throttle body operation -- (price is $1119.95 for the ECU!!!; ECU to PC/Laptop cord (necessary) is $599.95!!!)
they also have a head gasket ($89.95); catalog states that the gasket is .05mm thinner for higher compression
So now with .05mm thinner gasket , that is 0.0019685039370078744 in inches . Now if the bike really has a static 12.7 comp ratio this gasket raises it to 12.85-1 . I went from the figures in RRW mag on bore , combustion chamber cc's , stroke ect.. The numbers were "juggled around" to make a 12.7 ratio . I removed .002 in inches from the head gasket and got 12.85-1 .
RRW reported a 21.5 cc combustion chamber for the 10R . They reported a 12cc one for the R1 . That makes a huge difference trying to make a 12.7-1 ratio . This is part of the JUGGLING AROUND of figures . Also had no idea how thick the stock head gasket is . I gave it a .020 inch head gasket . Anyway if these figures are close or accurate , not worth my time . Maybe Mr. Muzzy or others here can add to this .
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cjzx-10r
Novice Class
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posted May 24, 2004 05:09 AM
I would like to know more about gasket size too. It work bettter with cam degree and tuning.
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worm~hole
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posted May 24, 2004 06:16 AM
NOS 
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dougmeyer
Needs a job
moderated
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posted May 24, 2004 09:59 AM
There is some fuzzy math going around here. The optional gasket,
our P/N 0007-00140 ($89.95), is .3mm (.012") thinner than stock. The difference in volume is about 1.36cc. Without knowing the exact chamber volume, I can only estimate that you'll get about a "3/4 point" change in C/R. Using published specs, that would take you from 12.2 to 12.9. You'll probably feel that.
Doug
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dket
Expert Class
Posts: 189
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posted May 24, 2004 12:38 PM
Edited By: dket on 24 May 2004 13:42
Doug the 10R has a static comp ratio of 12.7-1 . I was going off what TAFB said his Kawi catalog mentioned , 0.05mm . I also mentioned juggling around and close on my figures . I never mentioned exact anything .
With Doug's .75 point increase , that would almost certianly rule out pump premium . That would make her 13.45-1 . It might live with the long duration cams in the 10R . I will calculate your .3mm thinner gasket at work tomorrow .
If it really is .75 point , I am getting one . It is only $90 and "possibly could" give around 3-4HP on a stocker and 6-8HP with a full exhaust system . Almost comparable to a slip-on exhaust for $90 . And it is only a simple gasket change .
Thank you Doug for your reply to this post . Your words are no doubt valuable to us all .
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Lurking
Novice Class
Posts: 34
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posted May 24, 2004 01:22 PM
Kawasaki catalog has a typo error.
Stock Head gasket, 11004-0026, thickness .65mm
Opt. Race kit Gasket, 11004-0023, thickness .45 mm
Difference of .2 mm
Muz must get the double-secret stuff?!
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Broken Wind
Expert Class
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posted May 24, 2004 01:58 PM
probably the differance between 9.1x's and 9.30's in the qtr...wink wink..
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dougmeyer
Needs a job
moderated
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posted May 24, 2004 02:36 PM
welllll.....
I picked up a gasket and my caliper said .35mm, Dat's all I know. Maybe I didn't sqeeze the stainless hard enough.
There has been a question 0ff line about the effect of cam timing change with the installation of this gasket. I can't tell you exactly how much it will change, but it won't be much, maybe less than one degree. It wouldn't occur to me to ask that question either, because what I would do is measure the cam timing on my particular engine before I disassembled it, decide what I wanted, then set it to that desired spec. when I put it together.
Doug
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k bryant
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posted May 24, 2004 02:49 PM
I think sometimes "we" tend to assume these kinds of things/checks are always done. Proactive thinking is what super-tuners are all about. One thing always leads to another. Check your lobe centers before and after on this kind of mod. I'd include piston to head to valve, etc. I'm not sure I've ever considered a head gasket mod for compression change as a "simple gasket change".
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Drowland2
Parking Attendant
Posts: 8
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posted May 24, 2004 05:08 PM
No shit K bryant! Taking off the freaking air box was a pain in the ass to just adjust the decelerator. I don't think I will be changing my head gasket myself. My Ti force pipe is on order and Power commander. Taking it to a Dynojet Tuner this week to tweak it. Dying to see what kind of numbers I get dialed in. I post it and let everybody see!
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