LT1-LT4 Modifications 1993-97 Gen II Small Block V8

PCV on ASM Monoblade?

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Old 09-01-2011, 01:58 PM
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Default PCV on ASM Monoblade?

What are people doing with the pcv system on a ASM t/b? I was just going to run the filter on the valve cover but i have read that that could cause a vac leack and cause a rich condition. Could i run it into a catch can mounted on the firewall then return to the large vac port on the drivers side that isnt hooked to the break booster?
Old 09-01-2011, 02:59 PM
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Originally Posted by Dave357LT1
What are people doing with the pcv system on a ASM t/b? I was just going to run the filter on the valve cover but i have read that that could cause a vac leack and cause a rich condition. Could i run it into a catch can mounted on the firewall then return to the large vac port on the drivers side that isnt hooked to the break booster?
Are you talking about the fresh air hose on the pass vc? That is not the PCV system. The PCV runs from the bottom of the intake in the front to the driver side of the intake.

The fresh air can be deleted and if you choose a breather added.
Old 09-01-2011, 03:22 PM
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O i thought that was part of the system to take blow by and put it back into the intake to burn it off..... I had the filter on there but was reading that it may pull in un metered air and cause it to run rich. If i can get away with the filter ill be happy i dont seem to have hardly any blowby with my new motor thank god.
Old 09-01-2011, 03:35 PM
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The passenger side is the fresh air side. From what i understand it works in conjunction with the pcv. Im still trying to figure the whole PCV thing out and understand it
Old 09-01-2011, 03:43 PM
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Now we are talking semantics but i think everyone knows what i mean.
Old 09-01-2011, 08:37 PM
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Id just run a filter there, in the VC. I've had a Mono' on my car for a few yrs now, along with that filter..Never had a problem with it, or it ever causing me a rich condition.
Old 09-02-2011, 07:10 AM
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Ok thanks
Old 09-02-2011, 12:26 PM
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keep the fresh air tube on the passenger side. it works with the PCV valve. they go together
Old 09-02-2011, 01:40 PM
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It plugs into the throttle body. My mono blade does not have the port
Old 09-02-2011, 03:51 PM
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The air going into the crankcase from the fresh air inlet is eventually injested by the intake tract via the PCV valve. This is why that air needs to be metered by the MAF sensor. The two best choices for a fresh air inlet, given your throttle body, would be to rig an alternate fresh air inlet somewhere else post MAF and pre-throttle blade or to have a tuner adjust the MAF tables to reflect the false air if you just really have to have that filter on the valve cover.
Old 09-02-2011, 04:47 PM
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oh oops i read it wrong i thought it said pcv or monoblade haha



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