Mr9 or mr12? - Kawasaki ZX-10R.net
 
LinkBack Thread Tools Display Modes
post #1 of 9 Old 09-06-2010, 06:19 PM Thread Starter
GP Star
 
tone.r's Avatar
 
Join Date: Oct 2007
Location: CIN-OHIO
Posts: 2,297
Posting Frequency
  
Mr9 or mr12?

andbody runing mr9 or mr12 if they got a motor with alot of comperssion?
tone.r is offline  
Sponsored Links
Advertisement
 
post #2 of 9 Old 09-06-2010, 08:28 PM
Track Day Rider
 
flashf3's Avatar
 
Join Date: May 2006
Location: Oburg, SC
Posts: 116
Posting Frequency
 
how much compression are you running? IMO go with mr9 instead of mr12 bcuz the 12 is real tempermental to heat.
flashf3 is offline  
post #3 of 9 Old 09-06-2010, 09:17 PM Thread Starter
GP Star
 
tone.r's Avatar
 
Join Date: Oct 2007
Location: CIN-OHIO
Posts: 2,297
Posting Frequency
  
not sure 13.5:1 pistons and a decked head

Last edited by tone.r; 09-06-2010 at 09:25 PM.
tone.r is offline  
Sponsored Links
Advertisement
 
post #4 of 9 Old 09-07-2010, 12:18 PM
GP Rider
 
gazx10's Avatar
 
Join Date: Mar 2010
Location: monroe, ga.
Posts: 1,361
Posting Frequency
     
higher comp.

ive also read mr12 can be a little erratic in high heat, but you dont want any detonation period. i dont think u even have a choice with ur motor, mr12 only, especially in this heat. even the lightest detonation, the kind we cant sense, destroys hp. if i ever have the chance to finish my bike, gotta try 12 after all ive read. mr9 is great fuel, designed for stk.comp. sportbikes. 12 designed for higher comp. modified motors as yours, i wouldnt be surprised if this fuel isnt tempermental, when run with the compression it was designed for, as in your motor. let us know what u decide and how it turns out. good racing toney.
gazx10 is offline  
post #5 of 9 Old 09-07-2010, 07:06 PM
GP Rider
 
Join Date: Jan 2006
Location: Lancaster,SC
Posts: 1,141
Posting Frequency
 
Send a message via AIM to Cycle Concepts
Quote:
Originally Posted by tone.r View Post
not sure 13.5:1 pistons and a decked head
you could run mr9/12 and be okay with 13.5:1..but you may like mrx01 and see how that works for you as well..I seen the mr12 make 10 hp over pump gas on a customer's bike just recently...built motor with high compression pistons..
Cycle Concepts is offline  
post #6 of 9 Old 09-07-2010, 07:58 PM Thread Starter
GP Star
 
tone.r's Avatar
 
Join Date: Oct 2007
Location: CIN-OHIO
Posts: 2,297
Posting Frequency
  
Quote:
Originally Posted by Cycle Concepts View Post
you could run mr9/12 and be okay with 13.5:1..but you may like mrx01 and see how that works for you as well..I seen the mr12 make 10 hp over pump gas on a customer's bike just recently...built motor with high compression pistons..
thanks im runing MRX01 now i was just thinking MR12 might be better.
tone.r is offline  
post #7 of 9 Old 09-07-2010, 08:02 PM Thread Starter
GP Star
 
tone.r's Avatar
 
Join Date: Oct 2007
Location: CIN-OHIO
Posts: 2,297
Posting Frequency
  
Quote:
Originally Posted by gazx10 View Post
ive also read mr12 can be a little erratic in high heat, but you dont want any detonation period. i dont think u even have a choice with ur motor, mr12 only, especially in this heat. even the lightest detonation, the kind we cant sense, destroys hp. if i ever have the chance to finish my bike, gotta try 12 after all ive read. mr9 is great fuel, designed for stk.comp. sportbikes. 12 designed for higher comp. modified motors as yours, i wouldnt be surprised if this fuel isnt tempermental, when run with the compression it was designed for, as in your motor. let us know what u decide and how it turns out. good racing toney.
if i run the mr12 i will post the turn-out good or bad
tone.r is offline  
post #8 of 9 Old 09-07-2010, 10:57 PM
GP Rider
 
gazx10's Avatar
 
Join Date: Mar 2010
Location: monroe, ga.
Posts: 1,361
Posting Frequency
     
mr12

10hp? cams in a can! yeah, ive heard reports of 6-12 hp on some engine combinations. ive also read mr12 required more fueling on some bikes, im benchracing, cycle concepts can give u a experienced answer to that.
gazx10 is offline  
post #9 of 9 Old 09-08-2010, 11:32 AM
GP Rider
 
Join Date: Jan 2006
Location: Lancaster,SC
Posts: 1,141
Posting Frequency
 
Send a message via AIM to Cycle Concepts
Quote:
Originally Posted by gazx10 View Post
10hp? cams in a can! yeah, ive heard reports of 6-12 hp on some engine combinations. ive also read mr12 required more fueling on some bikes, im benchracing, cycle concepts can give u a experienced answer to that.
with my 15+ years of building/tuning, I've never seen any fuel do the same exact thing in two different bikes..even those with the same engine combos..With my 1070 cc motors I start with a base map that I have developed and every single time I load it into a pc and start tuning, i have to tweak it here and there to get a/f where I want it..so some combos like alittle more and some like alittle less..hope this answers your question..
Cycle Concepts 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



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