Procharger - bypass to filter or atmosphere?
01-30-2013, 04:07 PM
#1
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Car: 89 GTA
Engine: 6.0L Procharged
Transmission: T-56
Axle/Gears: 4.10
Procharger - bypass to filter or atmosphere?
I have a Procharger on my car and the bypass valve is located before the intercooler and runs back to my air filter boot. What are your opinions on just venting the bypass to atmosphere instead of back to the filter? It would help clean up my engine bay, as the return hose is a pain in the *** to deal with.
I don't have a MAF on my car, I have an Accel Gen7 system.
I don't have a MAF on my car, I have an Accel Gen7 system.
01-31-2013, 09:41 AM
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Car: 88 GTA, 74 T/A
Engine: 383 stroker (Procharged)
Transmission: TH400 w/brake (new 2013)
Axle/Gears: 12-Bolt S60 - 3.73 (new 2013)
Re: Procharger - bypass to filter or atmosphere?
I vented my back to the atmosphere, why would anyone want to put hot air back into the system?
01-31-2013, 10:35 AM
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Car: 89 GTA
Engine: 6.0L Procharged
Transmission: T-56
Axle/Gears: 4.10
Re: Procharger - bypass to filter or atmosphere?
I just switched it to atmosphere and the driveability has improved. I think my bypass valve wasn't able to fully handle the flow and my throttle blades were shuttering. Also, my fiberglass hood doesn't shake when I let off the gas anymore!
02-03-2013, 06:57 PM
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Car: 1987 Monte Carlo SS
Engine: HSR 383 AFR180/268XFI EBL
Transmission: 200-4R, Edge 2800 L/U
Axle/Gears: 7.5/3.73/PowerTrax No-Slip
Re: Procharger - bypass to filter or atmosphere?
Just remember to put a small filter on the atmosphere side of the valve as this will turn into an air inlet when off boost.
02-03-2013, 10:41 PM
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Car: 89 GTA
Engine: 6.0L Procharged
Transmission: T-56
Axle/Gears: 4.10
Re: Procharger - bypass to filter or atmosphere?
I am putting a filter on, but a supercharger is never "off boost" unless you remove the belt.
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02-04-2013, 05:24 AM
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Car: 1987 Monte Carlo SS
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Transmission: 200-4R, Edge 2800 L/U
Axle/Gears: 7.5/3.73/PowerTrax No-Slip
Re: Procharger - bypass to filter or atmosphere?
I referenced my bypass to the engine manifold, not the supercharger. I certainly see no boost unless accelerating.
02-04-2013, 12:01 PM
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Car: 89 GTA
Engine: 6.0L Procharged
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Re: Procharger - bypass to filter or atmosphere?
I meant a supercharger is always providing positive airflow. This valve is never an air inlet because the supercharger is always pushing air, even at idle. However I do agree that one should put an air filter on the bypass valve to keep it free of dirt and water.
02-04-2013, 09:35 PM
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Re: Procharger - bypass to filter or atmosphere?
You are correct. Air is always flowing OUT of the valve unless it is closed. The only reason ProCharger puts an air filter on some of their valves is to muffle the air coming out of the valve.
02-05-2013, 07:59 PM
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Car: 89 GTA
Engine: 5.7L Supercharged
Transmission: T-56
Axle/Gears: Moser 9" 3.70
Re: Procharger - bypass to filter or atmosphere?
I went the other way and installed the valve hose back into the filter, was getting sick of the excessive noise it produced, like it a hell of a lot better now.
07-08-2014, 08:39 PM
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Car: 85 Iroc-Z
Engine: 383 TPI Procharger D1SC
Transmission: TKO600
Axle/Gears: Strange S60 3.73
Re: Procharger - bypass to filter or atmosphere?
I have mine vented to atmosphere as well. Is there a problem not running a filter on the end of the hose? It only blows air out of it and doesn't suck any in. I have mine elevated from the ground and facing towards the radiator.
07-09-2014, 07:22 AM
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Car: 88 GTA, 74 T/A
Engine: 383 stroker (Procharged)
Transmission: TH400 w/brake (new 2013)
Axle/Gears: 12-Bolt S60 - 3.73 (new 2013)
Re: Procharger - bypass to filter or atmosphere?
I've been running my procharger for 3 yrs and don't have a filter on the end of the by-pass valve. Air is always coming out or the valve is closed under boost. I just have my discharge go to the atmosphere rather than tie it back into the system and pump more hot air into it.
07-18-2014, 03:34 PM
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Car: 89 GTA
Engine: 5.7L Supercharged
Transmission: T-56
Axle/Gears: Moser 9" 3.70
Re: Procharger - bypass to filter or atmosphere?
I actually went back to venting to atmosphere but this time with a filter on the end of it. The filter on the end helps a lot with the noise so I'm leaving it like that since my return hose was starting to deteriorate.
07-23-2014, 09:22 PM
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Car: Building LS3, T56 Z28
Engine: LS3
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Axle/Gears: Moser/ 4.11
Re: Procharger - bypass to filter or atmosphere?
Anyone ever add a filter over a big red bypass valve that vents to atmosphere?
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