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as there is a small crack in it where it connects to the engine and I was wondering if i should
replace it , also has any one drilled or made holes in the bottom of there standard airbox to increase airflow doe this give any performance boost? ihave a 1988 v6 camry
thats an emmisions related tube. were not allowed to vent valve gasse into the atmo so it goes back though the intake and into the car again, you can plug it up on the intake and put a mini breather on the valve cover though if you wanted.
ir just get some hose from home depot and replace it, nothing special, just ordinary rubber hose in the same diameter.
fyi, that is where bling bling oil catch cans go.
you can just duct tape it up if you wanted to too.
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125 front wheel horsepower with major retard issues between 4500-5200RPM -
OD switched off, even when not in 3rd results in major power loss/rpm drop.
That tube is not a vacume hose it`s called the pvc valve, it is the valve cover ventilation
that directs the oil steam and water deposits back into the engine and improves emissions, it also prevents water emulsion in the engine oil.
Looks like the bypass hose to me. PCV hose will be much closer to the intake manifold. During high vacuum, PCV hose draws in more air, so the make up fresh air comes thru the bypass hose. During hard acceleration or WOT, there is no vaccum in the intake manifold, so the excess blow-by gases in the crankcase have to be vented somehow, so now the bypass hose works in reverse, it vents crankcase gases out to the intake.
thats an emmisions related tube. were not allowed to vent valve gasse into the atmo so it goes back though the intake and into the car again, you can plug it up on the intake and put a mini breather on the valve cover though if you wanted.
ir just get some hose from home depot and replace it, nothing special, just ordinary rubber hose in the same diameter.
fyi, that is where bling bling oil catch cans go.
you can just duct tape it up if you wanted to too.
i agree with Terra. Its one of those Venting tubes. spits dirty stuff back in. I'm gonna put a mini breather on mine because i like the look of the small filter. MORE HP! hahaha j/k
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-Custom 2.5in Cat-back Exhaust + Borla Muffler + Weapon R Dragon Intake + TRD Rear Sway Bar + TRD Springs + TRD Front Strut Brace
i agree with Terra. Its one of those Venting tubes. spits dirty stuff back in. I'm gonna put a mini breather on mine because i like the look of the small filter. MORE HP! hahaha j/k
it's best to keep the hose on
with a breather, you'll actually lose some power, while creating more emissions
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HaHa
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"Life is a deep sleep, of which love is the dream..." Ripped...and the girls are loving it.
That tube is not a vacume hose it`s called the pvc valve, it is the valve cover ventilation
that directs the oil steam and water deposits back into the engine and improves emissions, it also prevents water emulsion in the engine oil.
That about right... except the PCV valve is actually a separate part installed on the valve cover, the tube directs the vented gases back into the intake to be reburned..
In Canada if you are caught without that tube hooked back into that intake and are venting directly into the atmosphere atmosphere you get slapped with a pretty hefty fine..
As the engine runs the air pressure inside changes--besides the pistons pumping, all the other chambers in the engine have fluctuation of pressure as well. In the empty space under the valve cover the easiest way to equalize the pressure is to punch a hole in the valve cover. The PCV valve sits in this hole..... because under the valve cover are the cams and such that need lubrication lots of oil vapour is formed and that would normally get vented into the atmosphere.. to reduce this pollution the engineers that designed the emissions control systems redirect that vapour back into the intake to burn off the oil vapour during the course of combustion for power..
Since it is relatively a small amount oil it will not harm the engine, however, it does affect how well the gasoline it is mixed with burns and slightly reduce the power f the car.. People with turbo vehicles are especially at risk since this vapour effectively lowers the octane rating of the air fuel mixture... To get around this one could install a baffled oil catch can in-line to filter out the vapour and still keep the emissions system a closed circuit..
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Chairperson, Toronto Prelude Club
1995 Honda Prelude SR, 1987 Toyota Supra (sold), 1988 Toyota Supra Turbo (sold), 1992 Toyota Camry, 2003 Honda CR-V
there isnt a PCV on the front back of the v6 though..that im aware of.. its just open... i managed to poke a chopstick in all the way...
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125 front wheel horsepower with major retard issues between 4500-5200RPM -
OD switched off, even when not in 3rd results in major power loss/rpm drop.
That about right... except the PCV valve is actually a separate part installed on the valve cover, the tube directs the vented gases back into the intake to be reburned..
In Canada if you are caught without that tube hooked back into that intake and are venting directly into the atmosphere atmosphere you get slapped with a pretty hefty fine..
As the engine runs the air pressure inside changes--besides the pistons pumping, all the other chambers in the engine have fluctuation of pressure as well. In the empty space under the valve cover the easiest way to equalize the pressure is to punch a hole in the valve cover. The PCV valve sits in this hole..... because under the valve cover are the cams and such that need lubrication lots of oil vapour is formed and that would normally get vented into the atmosphere.. to reduce this pollution the engineers that designed the emissions control systems redirect that vapour back into the intake to burn off the oil vapour during the course of combustion for power..
Since it is relatively a small amount oil it will not harm the engine, however, it does affect how well the gasoline it is mixed with burns and slightly reduce the power f the car.. People with turbo vehicles are especially at risk since this vapour effectively lowers the octane rating of the air fuel mixture... To get around this one could install a baffled oil catch can in-line to filter out the vapour and still keep the emissions system a closed circuit..
From his explanation, it says it slightly reduces the power of the car if i hook it on my new intake. So why shouldn't i put a breather on it, instead of hooking it in my intake and therefore reducing power.
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-Custom 2.5in Cat-back Exhaust + Borla Muffler + Weapon R Dragon Intake + TRD Rear Sway Bar + TRD Springs + TRD Front Strut Brace
Not emission related
Not power robbing or creating power.
You could put a breath filter on it but will be messy with oil coming off of it.
I'd suggest putting a Catch Can in between the tube and route it back to the intake.
This way the Can will catch the oil and not go in your intake.
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CAN any one tell me what this tube does ?
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