more questions (race cams, valve bucketes) - Kawasaki ZX-10R.net
Reply
 
LinkBack Thread Tools Display Modes
post #1 of 12 Old 03-17-2014, 07:23 PM Thread Starter
WSB Rider
 
Blue08's Avatar
 
Join Date: Nov 2012
Location: Mentor on the Lake, Ohio/Broke at a dragstrip
Posts: 727
Posting Frequency
 
more questions (race cams, valve bucketes)

For my 08... I picked up the 08 race intake cam, stock gen1 exhaust cam (same as the race exhaust cam), gen 1 valve buckets, thin hg and arp head bolts. From everyones expierence would you recommend using all these parts or what would you use/not use or change? wanting to run low 9's in the quarter and 5.9x in the eighth. also planning to get it tuned once i finish it. i know the race cam subject has kinda been beaten to death but just looking for everyones opinion before i knock it out.


65, pos
8.67 @ 154mph
Blue08 is offline  
Sponsored Links
Advertisement
 
post #2 of 12 Old 03-17-2014, 08:08 PM
Champion Rider
 
Join Date: Mar 2011
Posts: 360
Posting Frequency
 
I would run all that plus a first gear mod. Even if u and bike combo are 600/620 ish. Bike will b in the 8s depending on ur 60ft and wb


Sent from Motorcycle.com Free App
beanedisel is offline  
post #3 of 12 Old 03-17-2014, 08:42 PM
GP Star
 
zx racer's Avatar
 
Join Date: Feb 2010
Location: Scottsboro, AL
Posts: 3,759
Posting Frequency
      
Ive seen people post statin they gain power from the gen3 race cam but i actually lost power over stock cams degreed,thin hg.

05 ZX-10R SWB.
zx racer is offline  
Sponsored Links
Advertisement
 
post #4 of 12 Old 03-18-2014, 07:47 AM
GP Rider
 
sweetride10r's Avatar
 
Join Date: Oct 2004
Location: Clinton Twp, Michigan
Posts: 1,202
Posting Frequency
Images: 5
  
The bike should be able to go low 9's with just bolt on mods. The head gasket and cams if setup correctly should get you in the 8's no problem based on your riding skill and chassis setup. a good chassis goes a long way cause having hp does you know good if you cannot use it.

bike is down for not but not out
turbo project is a slow go no money

Need some work done
call 586-214-2414
sweetride10r is offline  
post #5 of 12 Old 03-18-2014, 08:24 AM
GP Star
 
thundercoupe9's Avatar
 
Join Date: Apr 2012
Location: ST. LOUIS
Posts: 2,158
Posting Frequency
  
I like how everybody is throwing numbers without knowing altitude where he's racing. At MIR you would run quicker because it's like 80 feet above see level and the bike will make a lot more power than at another track that is at like 2000 feet above see level. I think it's a waste of time putting a 296 duration cam instead of 292 duration cam with the same lift, the gains will be so small if any, won't show anything on the time slip. Degreeing the cams will get you better results and more seat time. And first gear mod on a 3rd gen is the same deal, you won't get the same result as putting first gear mod in a 1st or 2nd gen since they have the tallest gears.
thundercoupe9 is offline  
post #6 of 12 Old 03-18-2014, 11:38 AM
WSB Rider
 
Join Date: Oct 2011
Posts: 790
Posting Frequency
   
Quote:
Originally Posted by thundercoupe9 View Post
I like how everybody is throwing numbers without knowing altitude where he's racing. At MIR you would run quicker because it's like 80 feet above see level and the bike will make a lot more power than at another track that is at like 2000 feet above see level. I think it's a waste of time putting a 296 duration cam instead of 292 duration cam with the same lift, the gains will be so small if any, won't show anything on the time slip. Degreeing the cams will get you better results and more seat time. And first gear mod on a 3rd gen is the same deal, you won't get the same result as putting first gear mod in a 1st or 2nd gen since they have the tallest gears.
I always questioned that 4 degrees also. I wonder why Kawasaki made a Gen 3"race" cam with the same lift and only +4 degrees of duration. Thoughts on why they did just 4 degrees?
SelenaP is offline  
post #7 of 12 Old 03-18-2014, 08:24 PM
GP Star
 
thundercoupe9's Avatar
 
Join Date: Apr 2012
Location: ST. LOUIS
Posts: 2,158
Posting Frequency
  
Quote:
Originally Posted by SelenaP View Post
I always questioned that 4 degrees also. I wonder why Kawasaki made a Gen 3"race" cam with the same lift and only +4 degrees of duration. Thoughts on why they did just 4 degrees?
That's a good question, probably because of race rules if I had to guess.
thundercoupe9 is offline  
post #8 of 12 Old 03-18-2014, 08:44 PM
Champion Rider
 
Join Date: Mar 2011
Posts: 360
Posting Frequency
 
With that set up at 601lbs in crap air at Lebanon valley my bike ran 8.90 all day. Same set Up ported head 8.61 at New England drag way better air u won't c the gain on the dyno I actually have less power on motor now but bikes faster now


Sent from Motorcycle.com Free App
beanedisel is offline  
post #9 of 12 Old 03-18-2014, 09:18 PM
GP Rider
 
gazx10's Avatar
 
Join Date: Mar 2010
Location: monroe, ga.
Posts: 1,361
Posting Frequency
     
stk. long life cams have long opening closing ramps (cushion ramps) where valve is moved slowly off the seat and returned slowly to extend valvetrain/seat wear. these use up a lot of degrees when the valve is at low lift and low flow occuring. even on the 08 race int. duration measured at .050 is 235 degrees compared to 296 at 0 lift. means 61 degrees of duration the valve is .05 or less off the seat. not much flow happening here, a race cam profile can be much different with faster valve accleration/closing ramps allowing higher flow sooner and duration added to the profile at full lift holding the valve open longer there where maximium flow is occuring. cams can be same lift, same stated total duration, how quickly they achieve full lift, how long the valve is open in that area is the key to performance. it's not that it's only 4 degrees, more to do with where on the lift profile the added duration is most effective. could be much more than 4 there. all about the cam profile.

Last edited by gazx10; 03-18-2014 at 09:39 PM.
gazx10 is offline  
post #10 of 12 Old 03-19-2014, 12:33 AM
Champion Rider
 
Join Date: Mar 2011
Posts: 360
Posting Frequency
 
^^^^* we'll said


Sent from Motorcycle.com Free App
beanedisel 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: 1 (0 members and 1 guests)
 
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Similar Threads
Thread Thread Starter Forum Replies Last Post
Gen 2: Kit cams and 2 sets valve springs, never installed greenman43 Parts, Gear and Accessories 10 02-20-2012 04:13 PM
Gen 3: Swapping out cams and head gasket...a few questions. Cocky Rooster Performance and Tech 4 01-20-2012 03:40 PM
04-07 ZX-10r Kawi Race cams, thin head gasket and race springs heads up!!! garth285 Parts, Gear and Accessories 4 07-24-2008 10:03 AM
Another PCIII questions: valve removal Katmanblues Performance and Tech 4 10-08-2007 02:02 PM
Questions about cams 06green Performance and Tech 11 06-03-2006 09:48 PM

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