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| 2004 to 2008 F-150 and Mark-LT 4.2L, 4.6L and 5.4L equipped F-150s and Mark-LTs. |
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#1
Sat, February 28th, 2009, 01:16 PM
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What was the part number from Summit? I'm thinking of keeping a set or two in stock for customers.
__________________
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$$!  Windows™ 10 is only slightly less annoying!  Windows™ 11 is garbage!  Much to my surprise, I'm actually quite enjoying Linux! 
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#2
Sat, February 28th, 2009, 03:09 PM
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Make sure You check the application on the bottom of the Summit description. I don't think they have any that will work on the '04-'08 5.4l F-150. I looked into this before, Thats why I own the Troyers.
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#3
Sat, February 28th, 2009, 04:09 PM
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Good thing I don't have 5.4L
 But there's no good news either they sold me the wrong  kit anyway. So, I gotta put the whole damn thing back together with the factory pulleys and send this one back so they'll send me a good one back. Still want that part number Bill? 
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Specs: 2004 4.6L SCAB | Gryphon Programmer 87 Performance | Magnaflow True Dual Exhaust - Rear Cat Delete | S&B CAI | Summit Underdrive Pulleys | Troyer eFans (ordered) | Smittybilt Bullbar | Procomp 6" Driving Lights | UWS Toolbox | Rhino Lining | Chrome Steprails | 2.5" Leveling Kit | 265/70/R17 Goodyear Wrangler AT's Vids: Magnaflow Startup & Revs - Interior Exhaust Sounds
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#4
Sun, March 1st, 2009, 12:03 AM
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Quote:
__________________
Bill Cohron - The Mad Doctor Power Hungry Performance - The ORIGINAL in Ford performance tuning... Since 1997! (678) 890-1110 www.gopowerhungry.com - Home of the Hydra Chip, Minotaur Tuning Software, and the new Orion Reflash System for Navistar! Bring back Windows™ XP and 7. Windows™ Vista and Windows™ 8 is a pain in my a$$! 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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#5
Sun, March 1st, 2009, 12:15 AM
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If they send the correct kit I'll lettou know the part number!
__________________
Specs: 2004 4.6L SCAB | Gryphon Programmer 87 Performance | Magnaflow True Dual Exhaust - Rear Cat Delete | S&B CAI | Summit Underdrive Pulleys | Troyer eFans (ordered) | Smittybilt Bullbar | Procomp 6" Driving Lights | UWS Toolbox | Rhino Lining | Chrome Steprails | 2.5" Leveling Kit | 265/70/R17 Goodyear Wrangler AT's Vids: Magnaflow Startup & Revs - Interior Exhaust Sounds
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#6
Tue, March 3rd, 2009, 01:18 PM
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I've read some stuff about underdrive pulleys not turning your alternator enough. Would anyone suggest bumping up my idle on the Gryphon?
__________________
Specs: 2004 4.6L SCAB | Gryphon Programmer 87 Performance | Magnaflow True Dual Exhaust - Rear Cat Delete | S&B CAI | Summit Underdrive Pulleys | Troyer eFans (ordered) | Smittybilt Bullbar | Procomp 6" Driving Lights | UWS Toolbox | Rhino Lining | Chrome Steprails | 2.5" Leveling Kit | 265/70/R17 Goodyear Wrangler AT's Vids: Magnaflow Startup & Revs - Interior Exhaust Sounds
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#7
Tue, March 3rd, 2009, 01:50 PM
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That's the usual procedure, since underdrive pulleys turn things more slowly. But, unless you do a lot of idling with a heavy electrical load, you may not have to change the idle speed. I imagine, with a Gryphon, you could simply monitor your charging voltage to see if there's really any reason to adjust the idle.
It might really be needed if you coupled the pulleys with e-fans, since they add to your electrical load. - Jack
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 2024 F150 Platinum SCrew 3.5L PowerBoost FX4, Peragon Tonneau Cover, LineX Bed, 35% Window Tint on All Sides and Rear, Full Nose Paint Protection Film, Husky Mud Guards, Lasfit Floor Liners, VIOFO Dash Cam
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#8
Wed, March 4th, 2009, 12:50 AM
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Here is some UD pulleys that I found. I'm not sure how good they are but they're cheap.
http://www.rpmoutlet.com/f150asp.htm
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#9
Wed, March 4th, 2009, 01:02 AM
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Also found these but let me know what you decide or if anyone knows more than I do....let me rephrase since everyone knows more about these than I do. I know they all reduce drag on the serpentine belt but I have no idea which ones are better. heres this:
http://www.car-stuff.com/fordpulleys.htm
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#10
Wed, March 4th, 2009, 01:06 AM
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That's interesting that they are listed for '97 to '06 when most other pulleys stop at '03.
 Maybe they are the same.  I think I'll wait for someone else to give 'em a spin before I throw a set on the Expy. 
__________________
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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