cvo map vs. stock map
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6th Gear
Joined: Nov 2008
Posts: 11
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cvo map vs. stock map
does anyone know why a cvo fatbob with se slipons and stage 1 ac can be tuned from stock to not run lean but my fat bob with 2" rush slipons and stage 1 ac needs a pc and dyno tune.....wouldnt a stage 1 hd download or the same download they use for the cvo work...sorry just a
newbie question
newbie question
Road Master
Joined: Nov 2007
Posts: 1,223
Likes: 3
From: Peoria, AZ
Don't "need" a PC or "dyno". The stock EFI runs between high-low parameters and, by adding mods, you can go outside of it's range. Then you end up either too rich or too lean (most likely) and/or idling/starting problems. The HD upgrades available are generic maps and will run better than just "throwing the parts on"; the PC or others is to tweak further in the AFR (air/fuel adjustment) volumetric efficiency (VE) table using the dyno to get the best results. Dyno not necessary with the HD upgrades as what you download is what you get. CVO download is for the CVO and the FB download is for the FB and is chosen based on what mods were added.
Road Master
Joined: Apr 2008
Posts: 921
Likes: 22
From: Houston, TX
As others have said, you don't need a dyno and tuner for intake and slip ons.. Dealer can install a canned map for this setup.. Mine did it for $125 when I had the heavy breather and V&H exhaust 1st installed.. Now I have to have a tuner with the 103 motor..
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