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03-26-2011, 10:21 AM
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#1 |
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"Ad eundum quo nemo ante"
Drives: 2010 SS2, Black/Black Join Date: Jul 2010
Location: MN and AR
Posts: 111
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Air/Fuel Ratio with Whipple SC
Just wondering what Air/Fuel Ratios others see on their dyno sheets after Whipple is installed.
2010 Camaro, LS3 with 3 7/8" pulley and LS9 cam, ARH 2 7/8 long tubes, CAI intake. Looking at my dyno sheet it looks to be mid 11:1 to upper 11:1....never reached 12:1.... I have had guys telling me that it should be 12:1 or better????  I know that these should/would vary depending on lots of factors...but would like to see the ranges here from other Whipple guys/gals 
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03-26-2011, 11:24 AM
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#2 |
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My car runs on acorns....
Drives: 2010 SS RS Inferno Orange Join Date: Feb 2010
Location: Albuquerque
Posts: 1,334
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03-26-2011, 11:28 AM
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#3 |
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My car runs on acorns....
Drives: 2010 SS RS Inferno Orange Join Date: Feb 2010
Location: Albuquerque
Posts: 1,334
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The higher you go the leaner it is. I've always heard 11 is optimal for forced induction. Particularly on a stock block.
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03-26-2011, 01:35 PM
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#4 |
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"Ad eundum quo nemo ante"
Drives: 2010 SS2, Black/Black Join Date: Jul 2010
Location: MN and AR
Posts: 111
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My sheet...
Hard to read, but seems to be mid 11:1 or a bit higher?
https://picasaweb.google.com/lh/phot...eat=directlink |
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03-26-2011, 03:00 PM
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#5 |
  
Drives: 2010 ss camaro, imperial blue Join Date: Sep 2009
Location: new orleans
Posts: 944
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well on whipples website it say average 11.9:1 on 91 octane cheveron, that is how they tested the car http://www.whipplesuperchargers.com/...sp?ProdID=1243
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my youtube
my facebook www.myspace.com/1djchampagne www.twitter.com/1djchampagne mods: borla long tube headers, borla atak catback, lingenfelter gt-9 cam, ported heads, ecs base kit running 11 psi on top end, 1" bmr drop spring, aam 3.70 gears, ported throttle body, 160* thermorstat, lethal racing tune 750/641 rwhp/rwtq |
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03-26-2011, 03:01 PM
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#6 |
Drives: 2010 IOM SS Join Date: Aug 2009
Location: NY
Posts: 762
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Mine was set in the mid 11 range from Ted. I wanted it on the conservative side until I strengthen the motor
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Jannetty Racing Built
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03-27-2011, 09:59 AM
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#7 |
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"Ad eundum quo nemo ante"
Drives: 2010 SS2, Black/Black Join Date: Jul 2010
Location: MN and AR
Posts: 111
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So, mine seems in the safe range....guess that's a good thing.
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03-27-2011, 10:14 AM
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#8 |
    
Drives: 2010 SS & 2008 C6 Join Date: Mar 2008
Location: VA
Posts: 1,820
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Yours looks similar to mine. It is also worth noting that if you have cats and are getting your wideband o2 reading at the tailpipe it is going to read leaner than what it actually is, the reason is the cats burn off some of the unburnt fuel. So if thats you guys graph`s readings are at the tailpipe and you have cats you are definetly in the safe range.
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2010 SS L99, 536rwhp 10.843@126.72. Whipple Supercharger stock pulley, ARH 1 7/8 longtubes w/ catted xpipe, magnaflow 3" mufflers, ADM Race CAI, 3:70 gears, lightweight wheels and nitto drag radials. Stock internal L99, stock converter.
Bolt on best before blower 12.22@113.29 w/ nothing but ARH headers, catted x-pipe, ADM CAI and a tune on stock Pzero`s! Other car 2008 C6 Ls3, z51, A6, Npp Exhaust, best bonestock pass 11.80@118.82, Number 2 on the Corvette Forums Bonestock fastest list.. |
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03-27-2011, 02:25 PM
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#9 |
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"Ad eundum quo nemo ante"
Drives: 2010 SS2, Black/Black Join Date: Jul 2010
Location: MN and AR
Posts: 111
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No cats on mine....
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03-27-2011, 06:17 PM
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#10 |
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Drives: 2010 SS & 2008 C6 Join Date: Mar 2008
Location: VA
Posts: 1,820
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yours is safe. If you had cats and that a/f reading was after cats you will actually be super safe and leaving a little on the table potentially, but I think you are right on the money since you are getting an accurate a/f reading.
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2010 SS L99, 536rwhp 10.843@126.72. Whipple Supercharger stock pulley, ARH 1 7/8 longtubes w/ catted xpipe, magnaflow 3" mufflers, ADM Race CAI, 3:70 gears, lightweight wheels and nitto drag radials. Stock internal L99, stock converter.
Bolt on best before blower 12.22@113.29 w/ nothing but ARH headers, catted x-pipe, ADM CAI and a tune on stock Pzero`s! Other car 2008 C6 Ls3, z51, A6, Npp Exhaust, best bonestock pass 11.80@118.82, Number 2 on the Corvette Forums Bonestock fastest list.. |
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03-27-2011, 06:52 PM
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#11 |
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"Ad eundum quo nemo ante"
Drives: 2010 SS2, Black/Black Join Date: Jul 2010
Location: MN and AR
Posts: 111
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Thanks!!
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