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#1
Tue, May 26th, 2009, 04:44 PM
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Xcal3?
Are there any possiblities when using xcal3 canned tunes and a cai of running lean? From 97-03? 04-08?
Lars
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SENIOR MODERATOR--PTLA God doesn't have a Facebook but he's my friend. God doesn't have a twitter, but I follow him. 
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#2
Tue, May 26th, 2009, 05:03 PM
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Lars, I know your question is really directed at Bill, but don't you think that any tune written for a stock setup is going to have problems when faced with a non-stock intake? There's no way a canned tune programmer can recognize the presence of a "different" MAF sensor environment.
- Jack
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 2014 F150 Platinum SCrew 3.5L EcoBoost 4x4 with SCT programmer
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#3
Tue, May 26th, 2009, 05:22 PM
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Jack that kinda is what I am getting at with this question. That canned tunes no matter who the mfg is cannot account for a cai. Right?
Lars
__________________
SENIOR MODERATOR--PTLA God doesn't have a Facebook but he's my friend. God doesn't have a twitter, but I follow him.
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#5
Tue, May 26th, 2009, 09:19 PM
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Correct, gentlemen. Canned is canned, no matter how you slice 'em.
__________________
Bill Cohron - The Mad Doctor   Power Hungry Performance - The ORIGINAL in Ford performance tuning... Since 1996! (678) 890-1110 www.gopowerhungry.com - Home of the Hydra Chip, Minotaur Tuning Software, and the new Orion Reflash System for Navistar! Bring back  Windows™ XP and 7.  Windows™ Vista and Windows™ 8 is a pain in my a$$!  Windows™ 10 is only slightly less annoying!
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#6
Tue, May 26th, 2009, 10:17 PM
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The only reason I proposed this question is the problems sml175 on f150online was having. Then I asked if he had a cai, the answer was no? Now here's the next one, can a canned tune be to lean? Or be to conservative? Or is there more info that is not forth coming?
Lars
__________________
SENIOR MODERATOR--PTLA God doesn't have a Facebook but he's my friend. God doesn't have a twitter, but I follow him.
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#7
Tue, May 26th, 2009, 10:40 PM
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Canned tunes most certainly can be too lean. Obviously, it depends on how the files were tuned. In general, closed loop shouldn't present much of a problem since load is relatively low. Open loop, on the other hand, is where serious damage can occur. If the open loop tables are too lean, bad things happen.
On the other foot, I guess you could make an overly conservative file. We generally call those "Stock" though. 
__________________
Bill Cohron - The Mad Doctor Power Hungry Performance - The ORIGINAL in Ford performance tuning... Since 1996! (678) 890-1110 www.gopowerhungry.com - Home of the Hydra Chip, Minotaur Tuning Software, and the new Orion Reflash System for Navistar! Bring back Windows™ XP and 7. Windows™ Vista and Windows™ 8 is a pain in my a$$! Windows™ 10 is only slightly less annoying!
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#8
Tue, May 26th, 2009, 10:40 PM
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Ok the year of his truck is a 2008. One more variable to throw into the pot.
Lars
__________________
SENIOR MODERATOR--PTLA God doesn't have a Facebook but he's my friend. God doesn't have a twitter, but I follow him.
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#9
Tue, May 26th, 2009, 10:51 PM
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Forgive me if I dig into far into proprietary areas. Now, Bill when the developement of canned tunes was done at edge, wasn't their some safety proticals established or parameters? Wouldn't you guys test the extremes either way?
Now wouldn't sct do the samething with the xcal3? It seems like a stable unit to operate? Shoot! Another thought. Would a ffv interfere any with the canned tune being lean? Lars
__________________
SENIOR MODERATOR--PTLA God doesn't have a Facebook but he's my friend. God doesn't have a twitter, but I follow him.
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#10
Tue, May 26th, 2009, 11:04 PM
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Yes, when testing vehicles we pushed them to the ragged edge (no pun intended). We know where power can still be made with both aggressive timing and fuel modifications and we always back down a bit to leave room for error.
Many things can affect performance including temperature, humidity, fuel quality, fuel octane, ethanol content, and others... and that's not even getting into the bolt-on stuff. It has been my experience that SCT and Superchips tend to run a bit more aggressive on their canned tuning, which I believe stems from their desire to have good marketing HP numbers. This means that there is less tolerance for environmental changes or mechanical modifications. Hope this helps.
__________________
Bill Cohron - The Mad Doctor Power Hungry Performance - The ORIGINAL in Ford performance tuning... Since 1996! (678) 890-1110 www.gopowerhungry.com - Home of the Hydra Chip, Minotaur Tuning Software, and the new Orion Reflash System for Navistar! Bring back Windows™ XP and 7. Windows™ Vista and Windows™ 8 is a pain in my a$$! Windows™ 10 is only slightly less annoying!
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