hey guys I was just thinking - my prognosis is relly theoretical but:
I guess all u know about One way valve trick that u put to PCV hose just at the Intake Elephant trunk to let engine flow gases only out and not back - by that u help to smoking turbo...- i was thinking about this:
once u got healthy turbo - no oil seals gone etc. -> that one way valve on PCV at intake - couldnt it help little bit to keep that turbo alive longer than without it as it makes oil not tend to pour trough seals or whatever (basically that valve does only one thing - simulate inside pressures of engine or whatever like it was with original setup - no free exhaust and no big intercooler -my thought was once the oil got no reason to push trough oil seals (even if honestly , I do not clearly understand why the hell that stupid OWV trick can help once the turbo seals are knackered - it got its own oil pressure and oil lines, bearings and seals - what it got to do with that inside pressure and PCV ?
but anyway - doesnt my idea make some sense as prevention for good turbo?
One way valve trick - could prevent failure?
Re: One way valve trick - could prevent failure? (razielus)
I can't relaly understand what you're trying to get at.
PCV valve : positive crank ventilation. When your crank case gets positive pressure it vents into your intake. This prevents the entire from overpressurizing itself and blowing out rings. (I've seen it on the track when someone had his oil catch can plugged in backwards)
WHy turbo's blow oil seals
1. too much oil pressure. Either from blockage or something...2. Age and wear. If you boost a stock t25 at 15psi all day .. expect the seals to die out sooner then later. You're overworking your turbo and wearing it out. Keep it in its efficiency range instead of turning up the boost to get "more boost". Which, btw does not always net you more power as the turbo will heat up the air so much that you actually will not gain any power at all, and lose power. (unless you have some godlike intercooler)
The only way to prevent premature turbo failure is good oil, no abuse and maybe a turbo timer. By abuse i mean making the turbo work outside of its intended area. Think of your little turbo working twice as hard as a bigger turbo to make the same amount of boost.
PCV valve : positive crank ventilation. When your crank case gets positive pressure it vents into your intake. This prevents the entire from overpressurizing itself and blowing out rings. (I've seen it on the track when someone had his oil catch can plugged in backwards)
WHy turbo's blow oil seals
1. too much oil pressure. Either from blockage or something...2. Age and wear. If you boost a stock t25 at 15psi all day .. expect the seals to die out sooner then later. You're overworking your turbo and wearing it out. Keep it in its efficiency range instead of turning up the boost to get "more boost". Which, btw does not always net you more power as the turbo will heat up the air so much that you actually will not gain any power at all, and lose power. (unless you have some godlike intercooler)
The only way to prevent premature turbo failure is good oil, no abuse and maybe a turbo timer. By abuse i mean making the turbo work outside of its intended area. Think of your little turbo working twice as hard as a bigger turbo to make the same amount of boost.
Re: One way valve trick - could prevent failure? (Fleemer)
No u didnt understand -
I didnt mean staffs about pressure on whatever size of turbo and etc...
hold on, do u know about one way valve trick, do u? i.e. Once the people have smoking turbos (oil seals gone) they place ONE MORE one-way-valve (usually light-load one from power steering hoses or similiar... - and put them into pcv hose that lead into intake (U still keep ur original PCV valve thats is located on backside of intake - u basicaly connect that second one way valve to the spot where PCV hose meets the intake elephant trunk - in order to let air blow ONLY out of the engine - unless your turbo oil seals are totally knackered - it helps with white smoke u get off exhaust when they are bit knackered:)...
but my question was - when u have new turbo - could not this valve help to somehow prevent failure of oil seals (as when u think of that - once it helps stop oil to get out of turbo because of any inside pressure staffs - couldnt that also help to stop oil to 'try' get trough the oil seals even if its new turbo and therefor make turbo live longer...? (not regarding to pressure of turbo or any size of turbo - its not what I meant matey...
Please someone who knows about One Way valve trick more....
I didnt mean staffs about pressure on whatever size of turbo and etc...
hold on, do u know about one way valve trick, do u? i.e. Once the people have smoking turbos (oil seals gone) they place ONE MORE one-way-valve (usually light-load one from power steering hoses or similiar... - and put them into pcv hose that lead into intake (U still keep ur original PCV valve thats is located on backside of intake - u basicaly connect that second one way valve to the spot where PCV hose meets the intake elephant trunk - in order to let air blow ONLY out of the engine - unless your turbo oil seals are totally knackered - it helps with white smoke u get off exhaust when they are bit knackered:)...
but my question was - when u have new turbo - could not this valve help to somehow prevent failure of oil seals (as when u think of that - once it helps stop oil to get out of turbo because of any inside pressure staffs - couldnt that also help to stop oil to 'try' get trough the oil seals even if its new turbo and therefor make turbo live longer...? (not regarding to pressure of turbo or any size of turbo - its not what I meant matey...
Please someone who knows about One Way valve trick more....