Whipple squeal sound-resolved

[HKusp]

I have the UPR breather with the check valve. I ordered it from Beefcake.

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[beefcake]

I have the UPR breather with the check valve. I ordered it from Beefcake.

 

[Angrey]

I have the dual JLT's (for whipple) and I'm pretty sure I ordered them from BCR as well. (been awhile now, I get a lot of stuff from them over the years).

My point being, I don't seem to have any crank case problems and I've been at over 1100 rwhp for awhile now. I just don't see the need or reason to vent/breathe with a PD blower. I know others have reported frustrations with the non-vented setups, but I haven't experienced that. Maybe I'm just lucky or maybe some others have had faulty install.

For a blow through setup, I understand the need for a vent. But for a PD setup, if you're rerouting ahead of boosting, just don't see why it would be necessary to create ANOTHER maintenance item that potentially purges odors that get sucked into the cabin air system.

As long as the tune accounts for any unmetered air contributions, why is there such a common recommendation for vented systems?

 

[HKusp]

I don't know the answer, but I blew 2 oil pan gaskets on the composite pan and 1 oil filler cap that probably wasn't locked down all the way . Maybe it was just the composite pan was warped/defective, but I am not interested in re-visiting the issue again. I went with the PBH metal pan for Gen1/2 retrofit, and I am going to try and mitigate any circumstances where I have to worry about that gasket or any other crank case issues.

 

[HKusp]

Should the line from the pcv to the whipple be sucking in air? When I unplug it, it blows out air. I’m guessing it’s blowing air from the intake when unplugged but I wanted to be sure.
I’m just baffled with this, about ready to sell the car.

Are you pulling the line off here (1) or here(2)?

 

[HKusp]

The way I understand it, at times it'll blow air there, and at times it will suck. That's why the PCV has a check valve in it, and so does that UPR vent.

 

[ramairgt1]

. While looking over the PCV system I noticed a line that was partially hidden. In the middle of that line is a check valve with an arrow pointing the wrong damn way.I swapped it, took the car for a ride and the noise is gone. Car even seems to have more power.
I haven’t tried it without the breather yet but I plan on doing it tomorrow as the oil stench sucks.
I’m hoping this is it.

 

[HKusp]

Sweet. Good luck.

 

[DougS550]

I have the dual JLT's (for whipple) and I'm pretty sure I ordered them from BCR as well. (been awhile now, I get a lot of stuff from them over the years).

My point being, I don't seem to have any crank case problems and I've been at over 1100 rwhp for awhile now. I just don't see the need or reason to vent/breathe with a PD blower. I know others have reported frustrations with the non-vented setups, but I haven't experienced that. Maybe I'm just lucky or maybe some others have had faulty install.

For a blow through setup, I understand the need for a vent. But for a PD setup, if you're rerouting ahead of boosting, just don't see why it would be necessary to create ANOTHER maintenance item that potentially purges odors that get sucked into the cabin air system.

As long as the tune accounts for any unmetered air contributions, why is there such a common recommendation for vented systems?

You will most likely create crank case pressure with SC OEM engines. Positive crank pressure will also rob HP. I run the UPR whipple pass/drivers side and oil fill cap on valve cover vents. I would run a vacuum pump if I could, but not going their. But, that's just me.

 

[Angrey]

You will most likely create crank case pressure with SC OEM engines. Positive crank pressure will also rob HP. I run the UPR whipple pass/drivers side and oil fill cap on valve cover vents. I would run a vacuum pump if I could, but not going their. But, that's just me.

If I was getting excessive CC pressure I'd have observed the symptoms by now. My point is, there's no need to run a breather on a PD motor. Breathers are just another maintenance point that has to be serviced to keep oil spotting off engine bay components and deal with fumes/odors coming through the fresh air intake into the cabin.

I understand guys that have a blow through system. There's just no way around it. But if I don't have to deal with the drawbacks, then I'm not choosing to add more complexity and distraction.

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