kawabonzai
Zone Head
Leader of the Back.
Posts: 537
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posted November 12, 2008 09:43 PM
How lean is too lean?
Hi there gang,
I didn't wanna derail the other thread, but comments about the 09 being more lean than my 08 had me concerned. Take a look at this dyno sheet, 08 versus 09.
Is the 09 in the danger for being too lean? Myself I like the 08 curve better, a bit on the safer side around 13.1.
Should I go in and have the fat bottom end mapped leaner and juicen up the leaner top end?
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PC-III w/USB, Muzzys M14 + Carbon Oval + M10, BMC Race Filter, Flies Out, Buell Pegs, Heli Risers
www.TucsonSportRiders.com - Tucson's Premier SportRider Community
   
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smokinzx14
Needs a life
Posts: 10197
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posted November 12, 2008 09:59 PM
You are in no danger at 13.8 .... New cars run 14.2 or leaner .... Will 13.8 be the best for the track ? Most likely not ...... With ram air blasting down the track 12.9 to 13.1 works better ..
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Smokin Performance Cycles..
Tampa Bay , FL .. Brocks Performance Dealer ..
Gen 2 ZX14R Best ET 8.43 , Best MPH 164.95
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KZScott
Needs a life
high on speed
Posts: 7235
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posted November 12, 2008 10:44 PM
 Edited By: KZScott on 13 Nov 2008 06:45
I like 12.6-12.8:1 based on a few very smart guys oppinions. 12.8 for best power, 12.6 for best acceleration
cars dont have the compression bikes do most of the time
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01 ZX-12R 8.84 @ 156.3 no bars, DOT tires. Pump Gas, NA.... turbo 8.47 @ 164.
00 ZX-12R 8.62 @ 165.2 no bars, slicks, Pump Gas, 55 shot.... turbo 8.32 @173
00 ZX-12R Fastest NA Kawasaki in the world 1: 222.046 1.5: 226.390 Loring AFB
00 ZX-12R street turbo 1: 227.9 1.5: 234.1 Loring AFB
00 ZX-12R LSR turbo 1: 263.1 1.5: 266.5 Loring AFB Worlds fastest ZX-12R
CMG Racing RCC Turbos
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BobC
Pro
Posts: 1736
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posted November 13, 2008 06:58 AM
I always thought the ideal theoretical stoichiometric air/fuel ratio for pump gas was 14.7 : 1 although most bike applications seem to stay on the right side of 14. (That's below 14:1)
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Candy Thunder Blue 2006 ZZR1400
Stock wheelbase
Max: 205.4 mph in 1.25 miles
2012 ZZR1400 in Golden Blazed Green
Brock CT Full System. etc
Max: 203.1 in 1 mile (so far)
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KZScott
Needs a life
high on speed
Posts: 7235
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posted November 13, 2008 08:18 AM
it is but nothing is that efficient, and a little extra to keep things cool is allways a good(safe) idea
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01 ZX-12R 8.84 @ 156.3 no bars, DOT tires. Pump Gas, NA.... turbo 8.47 @ 164.
00 ZX-12R 8.62 @ 165.2 no bars, slicks, Pump Gas, 55 shot.... turbo 8.32 @173
00 ZX-12R Fastest NA Kawasaki in the world 1: 222.046 1.5: 226.390 Loring AFB
00 ZX-12R street turbo 1: 227.9 1.5: 234.1 Loring AFB
00 ZX-12R LSR turbo 1: 263.1 1.5: 266.5 Loring AFB Worlds fastest ZX-12R
CMG Racing RCC Turbos
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kllrvet
Expert Class
Posts: 148
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posted November 13, 2008 10:21 AM
14.7 is only good for cruising for maximum fuel economy, and minimal emissions, but potentially danherous a WOT (this is in reference to NA only). 13.8 ish at WOT while not at all optimum, isn't dangerous either.
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ZX14 cam chain tensioner making noise? I have the set it and forget it fix. PM me if I can help.
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