How to: Crankcase Vent Mod. - Page 5 - Kawasaki ZX-10R.net
 3Likes
Reply
 
LinkBack Thread Tools Display Modes
post #41 of 143 Old 10-04-2009, 10:23 PM Thread Starter
GP Rider
 
TENN10's Avatar
 
Join Date: Aug 2008
Location: Middle TN
Posts: 1,688
Posting Frequency
Images: 145
   
Quote:
Originally Posted by craig_sez View Post
WEll with out actual proof such as back to back dyno's with this mod done on a "BIKE" and not a "CAR" and then back factory im not rippin off my tank and such to do somethin that may or may not work....I already saw pretty much the same argument of this very subject discussed in the block off plates thread..
When i see posted actual results,im all in or out depending on the results..

I've almost lost interest in posting on this subject. The result have been tested several times. I'm not running a campaign for the mod. I've done a ton of dyno pulls. All of which showed a slight gain on my 00 ZX12 after the crankcase mod. None of the runs were back to back on my bike. After this mod. I posted higher #'s on every pull. How does it work on the 10?

Its not all about HP. You could put down 200 ponies. If it revs slow, thats a handicap.

The info. is there. The mod. is easy. Test it yourself.
TENN10 is offline  
Sponsored Links
Advertisement
 
post #42 of 143 Old 10-04-2009, 10:58 PM
WSB Rider
 
greenman43's Avatar
 
Join Date: Oct 2007
Location: Sydney, Australia
Posts: 806
Posting Frequency
Images: 33
   
Garage
Smile

Quote:
Originally Posted by TENN10 View Post
I've almost lost interest in posting on this subject. The result have been tested several times. I'm not running a campaign for the mod. I've done a ton of dyno pulls. All of which showed a slight gain on my 00 ZX12 after the crankcase mod. None of the runs were back to back on my bike. After this mod. I posted higher #'s on every pull. How does it work on the 10?

Its not all about HP. You could put down 200 ponies. If it revs slow, thats a handicap.

The info. is there. The mod. is easy. Test it yourself.
Hey, from my perspective, I appreciate the inital posting. It's been a good prompt for me to do something similar, so thanks very much :)

Cheers,
Brian


Do not walk behind me, for I may not be leading.
Do not walk in front of me, for I may not follow.
Do not walk alongside me, for the path may be narrow.
Just piss off and leave me alone.
greenman43 is offline  
post #43 of 143 Old 10-07-2009, 01:44 AM
Track Day Rider
 
DEATH_INC.'s Avatar
 
Join Date: May 2009
Location: Auckland, New Zealand
Posts: 227
Posting Frequency
 
Crickey, this is a simple mod that functions simply too. I did it on my 12r with a noticeable difference in throttle response if nothing else.(not dyno run tho) It created a fair bit of vacuum, when you undid the filler plug after running it you heard a fairly good mount of air getting sucked in. Most of the guys on the 12 site I went on (ZX12R.ORG) used to claim around 3hp on the dyno.
You DON'T need a one way valve, that's what the reeds do.
The negative pressure is created using the positive/negative waves in the exhaust (the same one's that create the extractor effect you get from headers) so they still create vacuum at high rpm.
The power comes from less air mass to pump around the engine....you think it equals out with one piston going up, one down, but as air has a mass it has kinetic energy too, so just by moving it then stopping it again it sucks power, so the less there is to move, the less power it takes, simple.
I'll be doing mine next time I have it apart.
DEATH_INC. is offline  
 
post #44 of 143 Old 10-11-2009, 12:38 PM Thread Starter
GP Rider
 
TENN10's Avatar
 
Join Date: Aug 2008
Location: Middle TN
Posts: 1,688
Posting Frequency
Images: 145
   
I decided to install an XTRE on my 10 yesterday. Since I was in there anyway I connected the flow meter to the stock plates to see if the reeds actually closed at some point.

The short of it is, no, they do not. If they ever closed at all, it was for a split second when the throttle was released quickly.

When I first hooked up the flow meter, the video camera was dead.

Here is a short vid. of the setup. By the time the camera was charged, it was dark outside and my neighbors were in their backyard so I couldn't rev it like I did earlier.


That volume of unfiltered, cool evening air being pulled through the system made me a little weary. I just had to know if the reeds closed at any point and was curious of the volume of vacuum.

This is an effective mod. on the 10, just like it was on the 12.
TENN10 is offline  
post #45 of 143 Old 10-11-2009, 03:03 PM
Champion Rider
 
Join Date: Apr 2009
Posts: 477
Posting Frequency
 
^^so what does this prove?that your mod is defo worth doing?
krakers10r is offline  
post #46 of 143 Old 10-21-2009, 10:28 PM Thread Starter
GP Rider
 
TENN10's Avatar
 
Join Date: Aug 2008
Location: Middle TN
Posts: 1,688
Posting Frequency
Images: 145
   
TTT

Shannon, run this by Dan and see what he thinks.
Maybe we can throw my bike on the Dyno and try it
both ways for a reasonable price. I can change it
back in 15 min.

I also put up a how to for the block off plate
alternative. Quick and easy to do.
TENN10 is offline  
post #47 of 143 Old 11-17-2009, 06:31 PM
GP Rider
 
strkd50's Avatar
 
Join Date: Jul 2008
Location: Rock Falls, IL
Posts: 1,730
Posting Frequency
  
Did you ever get on the dyno TENN10?

2012 ZX-14R
#228
strkd50 is offline  
post #48 of 143 Old 11-17-2009, 09:53 PM
Champion Rider
 
10rmotor's Avatar
 
Join Date: Jan 2005
Location: San Jose, Ca
Posts: 363
Posting Frequency
 
There is so much bad information/guessing going on in this thread its incredible. DEATH_INC is the only one that really understands whats going on.

First off, yes, this mod works. Its only good for a few Hp, but it does work. Most racing organizations don't allow this because it has the opportunity to dump oil on track, or at least create a lot of oil smoke if the engine is filled too much and pukes oil into the exhaust.

You don't need to add check valves to the exhaust, the reed valves do that. Think of the reed valves as diodes that only allow air to go one way, into the exhaust. Vacuum is created by the negative pulses in the exhaust. Since the exhaust is always flowing, the pulses are always there creating vacuum regardless of throttle position. The vacuum created by these pulses pulls the reed open, and when the pulse loses its energy, the reed closes. Since drag racers use this, and they're on the gas 100 percent of the pass, that should be some kind of clue that full throttle conditions create vacuum.

The air switching valve is not a "pump", its merely an air switch, hence its name. The ecu controls the switch and allows filtered air from the air box past the reed valves and into the exhaust to provide extra air to burn the unburned hydrocarbons that managed to get past the combustion process.

Hope this clears up some misunderstandings.
10rmotor is offline  
post #49 of 143 Old 11-18-2009, 03:21 AM Thread Starter
GP Rider
 
TENN10's Avatar
 
Join Date: Aug 2008
Location: Middle TN
Posts: 1,688
Posting Frequency
Images: 145
   
Quote:
Originally Posted by strkd50 View Post
Did you ever get on the dyno TENN10?
Not yet. I would like to, but I've been spending all my time & $
getting setup for the track.

I do plan on doing a couple dyno runs. There didn't seem to be
much interest here with this mod. I'll try to follow up as soon as
I can.

As stated, the mod. does work.

$5 - $10 worth of parts.

TENN10 is offline  
post #50 of 143 Old 12-10-2009, 01:46 PM
GP Rider
 
Join Date: Feb 2008
Posts: 1,600
Posting Frequency
Images: 26
    
3rd Gen AIS Removal / Block Off Plates install and i also took all the smog off charcoal can every thing so looks like i cant do this mod ?
anthonyzx10r2008 is offline  
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Kawasaki ZX-10R.net forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in











Currently Active Users Viewing This Thread: 2 (0 members and 2 guests)
 
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome