Breathers, the other option.

[Zinc03svt]

I didn't meant to "hurt your feelings", but if you do "homework" you can find plenty of "data".

No, actually I have. Show me the dyno sheets/data Chief. Thanks.

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[Racerx009]

From what I've read, breathers will loose you a few horsepower on a NA car. The PCV system allows the crank to spin with a little less resistance.

I think you have it reversed breathers allows less pressure in the oil pan so the crank spins with less resistance Also oil splash in the pan can cause your engine to lose hp.

 

[Zinc03svt]

Yeah, Aaron at JPC and many others must be losing hp from what? Crankshaft windage from breathers. Put the crack pipe down please. He has no data. I “read” on the internet somewhere... I was actually being nice and asking for data n/a coyote specific.. Lol.

 

[Racerx009]

Yeah, Aaron at JPC and many others must be losing hp from what? Crankshaft windage from breathers. Put the crack pipe down please. He has no data. I “read” on the internet somewhere... I was actually being nice and asking for data. Lol.

I don't know as much as him I only went to automotive technical school and worked for the FBI as their head automotive tech.. But what do I know

 

[Zinc03svt]

I don't know as much as him I only went to automotive technical school and worked for the FBI as their head automotive tech.. But what do I know

Probably getting kickback from vendor selling $200-300 catch cans? What do I know or really care. Lol.

 

[Racerx009]

Prob


Probably getting kickback from vendor selling $200-300 catch cans? What do I know or really care. Lol.

Everyone is a expert just like Facebook lol

 

[Zinc03svt]

Everyone is a expert just like Facebook lol

Lol. Ok, they might be messy for some people having to change (2) $10 filters every 10,000 miles or clean them versus dumping a catch can. BFD. Great laugh 4 Labor Day.

 

[Zinc03svt]

Look out...

 

[texasboy21]

Engines operate better and more efficiently with the crankcase in a vacuum. A proper crankcase ventilation system will purge the block with fresh air, reduce sludge and condensation build up, and prevent the crankcase from becoming pressurized. Breathers/venting to the atmosphere is 1940s technology.

 

[Zinc03svt]

Here is my vacuum at idle if “some people” are concerned it all goes away (loses hp etc.) with breathers. Gas engines today (1940’s) are still air pumps. Lol.

 

[Ruiner46]

Vacuum in your crankcase is not the same as vacuum in your intake tract. Hell, that's not even a vacuum gauge really.

 

[Zinc03svt]

Vacuum in your crankcase is not the same as vacuum in your intake tract. Hell, that's not even a vacuum gauge really.

Did not change was the point running compared to stock pvc. Crankcase pressure would obviously be less at wot w/ breathers.

 

[texasboy21]

Did not change was the point running compared to stock pvc. Crankcase pressure would obviously be less at wot w/ breathers.

Manifold vacuum and crankcase vacuum are not one in the same.....

Also, the statement "crankcase pressure would obviously be less at wot w/ breathers" is incorrect. You would be pressuring the block without a fresh air source.

 

[Ruiner46]

Did not change was the point running compared to stock pvc. Crankcase pressure would obviously be less at wot w/ breathers.

Why would the gauge change anyway? You literally plugged holes in your intake and then used a nearly useless dummy gauge to prove what? That your intake plugs don't leak?

Even if it was a real vacuum gauge, the only time you might see a difference is if the PCV valve was badly leaking. There is no intake tract connection to the crankcase with breathers so that gauge doesn't tell you anything about the crankcase pressure.

 

[GT Pony]

Engines operate better and more efficiently with the crankcase in a vacuum. A proper crankcase ventilation system will purge the block with fresh air, reduce sludge and condensation build up, and prevent the crankcase from becoming pressurized. Breathers/venting to the atmosphere is 1940s technology.

Yep, racers who want more HP and a well evacuated crankcase of nasty blow-by combustion gasses will use a vacuum pump or an evacuation system driven by exhaust flow. As an example, a buddy of mine evacuated the crankcase on his Hayabusa (drag bike) and saw 5~6 more RWHP on the same dyno, which was a 3% gain.

I'd never run open breathers on a street car because I want the crankcase to have good evacuation, and a fresh air supply to help sweep out all the nasty stuff from combustion blow-by. Catch-can on stock PCV system for my GT.

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