What size pulley & belt size for Procharger D-1SC? - 2003-04 Mach 1 Registry Owners Club

SouthKak_Mach1 · 09-06-2020, 12:11 AM

My Mach 1 currently has OEM rotating assembly. What pulley/belt size to keep power around 450 rwhp? Current supporting mods: Accufab throttle body, Ford 60 lbs injectors, DW300 fuel pump (340 lph), Borla Stingers, MRT O/R H-pipe, SCT BA3000 MAF, Ford 3.73 gears, DSS driveshaft, Torsen diff, and Moser 31 spline axles. Not planning on building the bottom end and installing blower cams until 12-18 months from now.

glittle75 · 09-06-2020, 11:03 AM

4" pulley and k061098 belt should be close. Might need a BAP, but everything else you listed should be fine.

DSG2003Mach1 · 09-08-2020, 09:48 AM

a 4 or 4.1 is gonna the biggest that will fit and even then might have to clearance the corner of the valve cover. Limiting it to only 450 will probably require a very low timing tune and/or keep rpms down

SouthKak_Mach1 · 09-08-2020, 09:26 PM

Quote:

Originally Posted by glittle75

4" pulley and k061098 belt should be close. Might need a BAP, but everything else you listed should be fine.

Appreciate the info! I've been considering getting a fuel pump booster to be on the safe side.

SouthKak_Mach1 · 09-08-2020, 09:28 PM

Quote:

Originally Posted by DSG2003Mach1

a 4 or 4.1 is gonna the biggest that will fit and even then might have to clearance the corner of the valve cover. Limiting it to only 450 will probably require a very low timing tune and/or keep rpms down

Thanks for the info!

blown03Mach1 · 09-10-2020, 05:01 PM

I ran a 4.1" pulley on my P1 and I don't think I could even fit a piece of paper between the valve cover and the pulley, but it did not rub. My 4.1 put down 458 to the tires on a Mustang Dyno.

As for fuel, I believe I ran the Cobra fuel system and 48# injectors.

ASH302 · 09-12-2020, 01:59 AM

could notch the valve cover if he needs to, did that on mine.
Just incase.

ASh

ASH302 · 09-12-2020, 02:01 AM

Quote:

Originally Posted by glittle75

4" pulley and k061098 belt should be close. Might need a BAP, but everything else you listed should be fine.

I would say it will be close, but plan on buying one. Fuel is one thing you do not want to be close to maxing out, better to have plenty.

ASh

09-06-2020, 12:11 AM	#1
SouthKak_Mach1 Registered User Join Date: Dec 2015 Location: Sierra Vista, AZ Posts: 132	What size pulley & belt size for Procharger D-1SC? My Mach 1 currently has OEM rotating assembly. What pulley/belt size to keep power around 450 rwhp? Current supporting mods: Accufab throttle body, Ford 60 lbs injectors, DW300 fuel pump (340 lph), Borla Stingers, MRT O/R H-pipe, SCT BA3000 MAF, Ford 3.73 gears, DSS driveshaft, Torsen diff, and Moser 31 spline axles. Not planning on building the bottom end and installing blower cams until 12-18 months from now. __________________ 2004 Ford Mustang Mach 1 (DSG), Borla Stingers Catback, C&L CAI, SCT X4 Custom Tune, Black Chrome Rovos Durban Wheels (18x9 F, 18x10.5 R) on Nitto NT05s (275/35/18 F, 295/35/18 R), Pioneer AVH-4200NEX Receiver, MM C/C Plates, Rolled Rear Fenders, Eibach Sportlines/Struts/Shocks, Raxiom Smoked Taillights/Third Brake Light/LED Bulbs, Clear Headlights w/ Black Housing, Polished Aluminum Interior Accents, 30% Window Tint, Tinted Side Markers, Carbon Fiber Valve Stem Caps, Black Shorty Antenna

09-06-2020, 11:03 AM	#2
glittle75 Registered User Join Date: Apr 2011 Location: Burlington, NC Posts: 62	Re: What size pulley & belt size for Procharger D-1SC? 4" pulley and k061098 belt should be close. Might need a BAP, but everything else you listed should be fine.

09-08-2020, 09:48 AM	#3
DSG2003Mach1 700 HP Mach Join Date: Nov 2003 Location: Orlando, FL Posts: 8,384	Re: What size pulley & belt size for Procharger D-1SC? a 4 or 4.1 is gonna the biggest that will fit and even then might have to clearance the corner of the valve cover. Limiting it to only 450 will probably require a very low timing tune and/or keep rpms down __________________ 03 dsg mach1 - MPR built 9.5:1 motor, D1, cams, ported intake, full exhaust, magnum t56, built rear, E85 etc... '12 F150 FX2 Supercrew with Ecoboost daily beater

09-10-2020, 05:01 PM	#6
blown03Mach1 8LB YNER Join Date: Mar 2005 Location: Tampa Posts: 5,661	Re: What size pulley & belt size for Procharger D-1SC? I ran a 4.1" pulley on my P1 and I don't think I could even fit a piece of paper between the valve cover and the pulley, but it did not rub. My 4.1 put down 458 to the tires on a Mustang Dyno. As for fuel, I believe I ran the Cobra fuel system and 48# injectors. __________________ Just because you're winnin' Don't mean you're the lucky ones TR 2003 (Jezebel) sold Mar 12...

09-12-2020, 01:59 AM	#7
ASH302 Soldier for Christ Join Date: May 2009 Location: Willis, TX at The Daddy ASh Ranch Posts: 30,596	Re: What size pulley & belt size for Procharger D-1SC? could notch the valve cover if he needs to, did that on mine. Just incase. ASh __________________ 2001 lazer red v6 Mustang coupe sold in Aug 2006 2004 screaming yellow 5.0 sc Mach 1 sold in Oct 2012 2013 grey 6 speed coupe GT Mustang Sold in Feb 2014 2013 RED Dodge Charger R/T Sold Nov 2014 2002 custom Blue 02 Auto Trans AM Sold June 2015 1998 Cobra Black Sold summer 2016 Current 2009 Ford F350 FX4 March 2017 (work truck) 2003 OW 5.0 Mach 1 Aug 2020 ASh

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