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| Phoenix Switch-On-The-Fly Chip (DISCOUNTINUED) (Disabled) Power Hungry no longer sells the Phoenix/TS chip, but if you need custom tuning we can recommend a few really good tuners that will be able to still provide tuning and support for your chip. If you have any other questions or comments about the Phoenix/TS chip, please post it here. |
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#11
Fri, December 18th, 2009, 02:14 PM
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Thank you for clearing that up Bill. I was drowning.
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Tuning, PCM flashing, and burning chips for 7.3s since 2008. Repairing all aspects of 7.3L Powerstrokes for 25 years. Eight 7.3L PSDs in the driveway including a 1994 Crown Vic and 1973 F100/2002 F350. Looking for the next victim. |
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#12
Fri, December 18th, 2009, 06:05 PM
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O but bill,,,what a sweet sounding lope you can make a 6 liter do.
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 crew cab 4-wheel drive 03 f-250 6 uh oleaker.4 inch staight pipe..12 years of being a diesel tech..i love helping others..feel free to call with any concerns..706-244-4955 got the truck put back to factory tuning the day she rolled of the factory line, TEC3..ficm,tcm,ecm...php is the best
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#13
Fri, December 18th, 2009, 09:04 PM
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Quote:
 Hee hee!
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Bill Cohron - The Mad Doctor   Power Hungry Performance - The ORIGINAL in Ford performance tuning... Since 1997! (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!  Windows™ 11 is garbage!  Much to my surprise, I'm actually quite enjoying Linux! 
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#14
Sat, December 19th, 2009, 01:13 AM
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Quote:
A little off subject but this post got me thinking  , I have experienced a rough idle with my single shots since I installed them and the only way I was able to smooth them out was to drop the ICP at idle to the mid 400's(normally mid 500's). This just about completely cured my issues but, was it the lower ICP that smoothed it out or was the SOI slightly retarded indirectly? What changes indirectly when you drop or raise ICP at idle? What happens if you have too much PW at idle, or is this even possible? |
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#15
Sat, December 19th, 2009, 08:40 AM
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Single shots always run a bit lower ICP at idle... usually about 3 MPa, vs 3.8 MPa for splits. I'd suspect that's what helped. The timing is usually negligible. At 700 RPM, the crank is rotating 4.2º per ms. On average, the difference between singles and splits is .3 ms (.8 for singles vs. 1.1 for splits) so the total timing difference at idle would be 1.26 degrees. Not really much in the grand scheme of things. There is also a modest change in the combustion point because of the raised ICP, but again, it's not anything significant at idle.
I suspect the rough idle was mostly from slight overfueling or an imbalance when trying to run relatively small pulsewidth values, which can often happen when ICP gets too high and the PCM is trying to cut back fuel to maintain idle speed. Fuel pulsewidth and SOI are both DIRECTLY affect by changes in ICP. More to the point though, SOC (Start of Combustion) is affected in relation to ICP changes. Too much pulsewidth causes an unstable idle. You can't really run a diesel lean or rich, it just makes power with the fuel you've got. More fuel and the RPMs climb. That's about it.
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Bill Cohron - The Mad Doctor Power Hungry Performance - The ORIGINAL in Ford performance tuning... Since 1997! (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! Windows™ 11 is garbage! Much to my surprise, I'm actually quite enjoying Linux!
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