Bypass Valve Question - 2003-04 Mach 1 Registry Owners Club

marshall04mach · 04-25-2009, 12:07 AM

So i know i could search the threads and all that **** but i want direct answers to my question.

Just had Modular Depot Install a used P-1SC Procharger on my Mach 1... as far as i know everything installed is what came from procharger when the previous owner had ordered it... well i want a bypass valve vented to the atmosphere.. what needs to be done to do that. I love that sound and im assuming this kit just vents the air some other way than through a bypass valve into the atmosphere. but like i said this is a new venture for me so anyone who can help i'd really appreciate it.

marshall04mach · 04-25-2009, 01:22 AM

How Come? not arguing just curious

littlemags · 04-25-2009, 09:18 AM

i had stock bypass (the one that comes with kit) routed just like the instructions say and ran air back through the system. i have since upgraded to the big red enclosed and have that VENTED to open air. I dont see anything wrong with venting but the stock one doesnt "close" as tightly as say the race version. You have issues with vaccum or air leaking because the stocker does seal as well.
Dont know if that is 100% accurate but in my mind seems logical why you would not vent the stock bypass.

good luck

Screaming04 · 04-25-2009, 10:32 AM

You are sucking air through the maf, this is now metered air and is used to calculate fuel flow (mixture). If you then vent to atmosphere, air is lost and your mixture is screwed. (pretty sure procharger is a suck through maf setup)

If you really need 2f2furious, you need to convert to a blow through setup...air is metered after the sc. (turbo's meter boosted air...your system doesn't)

littlemags · 04-25-2009, 11:39 AM

Quote:

Originally Posted by Screaming04

You are sucking air through the maf, this is now metered air and is used to calculate fuel flow (mixture). If you then vent to atmosphere, air is lost and your mixture is screwed. (pretty sure procharger is a suck through maf setup)

If you really need 2f2furious, you need to convert to a blow through setup...air is metered after the sc. (turbo's meter boosted air...your system doesn't)

the standard set up for procharger is blow through...

Shane@TM · 04-25-2009, 12:58 PM

I would like to know the answer to this too..im doing an install as well

marshall04mach · 04-25-2009, 01:49 PM

Quote:

Originally Posted by Mach1Marauder

You CAN vent the bypass if you want to do so, but you have then have riceboy added to you screen name.

Ok.........for venting to the atmosphere OR for recirc, you don't want either the vent OR the return CLOSE to the maf............plain and simple.

I understand you don't think it should be done.. it probably wont be done and if it is it wont be soon.. BUT IF I WAS going to do it what would need to be changed or done.

Screaming04 · 04-25-2009, 02:56 PM

Quote:

Originally Posted by littlemags

the standard set up for procharger is blow through...

Then go for it. Make sure to add a v-tech emblem.

04-25-2009, 12:07 AM	#1
marshall04mach Mach Won Join Date: May 2008 Location: Mason, Ohio Posts: 99	Bypass Valve Question So i know i could search the threads and all that **** but i want direct answers to my question. Just had Modular Depot Install a used P-1SC Procharger on my Mach 1... as far as i know everything installed is what came from procharger when the previous owner had ordered it... well i want a bypass valve vented to the atmosphere.. what needs to be done to do that. I love that sound and im assuming this kit just vents the air some other way than through a bypass valve into the atmosphere. but like i said this is a new venture for me so anyone who can help i'd really appreciate it. __________________ 04 Azure Blue Mach 1 "MachWon" P-1SC Procharger @ 1O PSI Intercooled PHP Intake Spacer 4.10 Gears Kooks Longtube Headers Kooks O/R X Pipe SLP Loudmouth I Catback MGW Short Shifter Welded Sub Frame Connectors Maximum Motorsports Caster/Camber Plates Strut Tower Brace 1" Shaker Lift Rear Seat Delete H&R Springs Bilstein Auto Adjusting Shocks 03/04 Cobra IRS Conversion 18x9- 18/10 Black and Silver Bullit Wheels Tuned By Modular Depot 460 HP 421 TQ

04-25-2009, 01:22 AM	#2
marshall04mach Mach Won Join Date: May 2008 Location: Mason, Ohio Posts: 99	Re: Bypass Valve Question How Come? not arguing just curious __________________ 04 Azure Blue Mach 1 "MachWon" P-1SC Procharger @ 1O PSI Intercooled PHP Intake Spacer 4.10 Gears Kooks Longtube Headers Kooks O/R X Pipe SLP Loudmouth I Catback MGW Short Shifter Welded Sub Frame Connectors Maximum Motorsports Caster/Camber Plates Strut Tower Brace 1" Shaker Lift Rear Seat Delete H&R Springs Bilstein Auto Adjusting Shocks 03/04 Cobra IRS Conversion 18x9- 18/10 Black and Silver Bullit Wheels Tuned By Modular Depot 460 HP 421 TQ

04-25-2009, 09:18 AM	#3
littlemags finally paid for Join Date: Nov 2004 Location: Ypsilanti Twp, Mi Posts: 4,077	Re: Bypass Valve Question i had stock bypass (the one that comes with kit) routed just like the instructions say and ran air back through the system. i have since upgraded to the big red enclosed and have that VENTED to open air. I dont see anything wrong with venting but the stock one doesnt "close" as tightly as say the race version. You have issues with vaccum or air leaking because the stocker does seal as well. Dont know if that is 100% accurate but in my mind seems logical why you would not vent the stock bypass. good luck __________________ 2004 mach 1-turbo build in progress.. Fast xfi 2.0 OLD combo- 826rwhp/720 trq -100 shot NX 9.13@154 on 100 shot NEW- in progress...

04-25-2009, 10:32 AM	#4
Screaming04 old timer Join Date: Aug 2004 Location: Langley, BC Posts: 1,889	Re: Bypass Valve Question You are sucking air through the maf, this is now metered air and is used to calculate fuel flow (mixture). If you then vent to atmosphere, air is lost and your mixture is screwed. (pretty sure procharger is a suck through maf setup) If you really need 2f2furious, you need to convert to a blow through setup...air is metered after the sc. (turbo's meter boosted air...your system doesn't) __________________ Sold: Screaming Yellow Intercooled 2.1 KB 5speed Mach 1 running a measly 8psi

04-25-2009, 12:58 PM	#6
Shane@TM Toledo Mustangs Join Date: Sep 2008 Location: toledo, ohio Posts: 1,433	Re: Bypass Valve Question I would like to know the answer to this too..im doing an install as well __________________ Toledo Mustang Club Under the knife AGAIN! "The more you mod it, the more it breaks" CRT PERFORMANCE TUNED

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