F4i - Main Forum Main F4i discussion board

dyno tuning how lean is safe?

  #1  
Old 03-25-2012, 05:32 PM
Member
Thread Starter
Join Date: Nov 2010
Posts: 98
Default dyno tuning how lean is safe?

So yeah, a year after my air filter, exhaust, power commander, and finally a gps corrected speedo healer. I am seeing 33-37mpg, while just cruising. Not getting on it. Mostly highway. I would be ok with this, except it is clearly still throwing out fuel because both myself and especially my girl smell like gas after a ride, long or short.

Clearly there is extra fuel being used that is not needed. But I do not know how lean I can get this tuned safely. Does anyone else know? seems stock it was around a 13.9-14.0 AF ratio.. Currently it is 12-13 after tune. Sure it is smoother, but again, it is putting out gas smell. Any thoughts on how lean I can get it, while still being able to ride hard on a hot day?
 
  #2  
Old 03-26-2012, 07:24 PM
Member
Thread Starter
Join Date: Nov 2010
Posts: 98
Default

bump, nobody knows?
 
  #3  
Old 03-26-2012, 07:27 PM
Senior Member
Join Date: Feb 2011
Posts: 169
Default

Check your FPR?
 
  #4  
Old 03-26-2012, 08:06 PM
Member
Thread Starter
Join Date: Nov 2010
Posts: 98
Default

Originally Posted by highercal View Post
Check your FPR?
I haven't done that yet, but it is not nearly as bad as people say it gets. And, it was tuned fine, just tuned a bit rich apparently. Not saying it couldn't be the problem, but everyone says it is much worse when FPR. Looking at my map, it is far from the 14ish to 1 that the stock curve was nearly. So it was made richer. I want to know safe leaness. So I can have it retuned again, but a little better.
 
  #5  
Old 03-27-2012, 07:56 AM
Member
Join Date: Jan 2012
Posts: 54
Default

In cars perfect ratuo is 14.7:1. Not sure if its the same for bikes. Cant think why it wouldnt be.
 
  #6  
Old 03-27-2012, 07:49 PM
Member
Thread Starter
Join Date: Nov 2010
Posts: 98
Default

from looking at threads, it looks like people are tuning newer 1000cc rr bikes to 13.7-14 with best results... So yeah, I am richly tuned, considering they are higher compression etc... but I would really like to see what the 600 has been tuned to. 14.2 is cleanest most efficient burn theoretically for gas. sooo hrm.
 
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
98Mystique2
CBR 600F3
38
07-22-2014 10:22 PM
goodkookin
1000 Modifications
2
02-21-2012 10:20 AM
scooterc14
F4i - Main Forum
1
03-13-2011 01:27 PM
HockeyFan
West
0
03-19-2009 06:41 PM
ampfp
General Tech
1
09-28-2007 09:32 PM


Thread Tools
Search this Thread
Quick Reply: dyno tuning how lean is safe?


Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.