Catch me if you can!
Catch me if you can!
06-06-2018, 12:15 PM
![[Image: LexuS-Copy.jpg]](http://i65.photobucket.com/albums/h204/Sparkystav/LexuS-Copy.jpg)
Read my thread here: The Evolution of my Turbo Lexus from NA-Supercharged-Twin Turbo-Massive Single
Please leave your comments.
OutlawJapClub Admin Team
Sparkystav
06-06-2018, 12:15 PM #41We need pics!
Read my thread here: The Evolution of my Turbo Lexus from NA-Supercharged-Twin Turbo-Massive Single
Please leave your comments.
OutlawJapClub Admin Team
07-06-2018, 12:32 AM
Stoney Very interesting to know, as you know I have been looking at them myself.
So you are now running two catch cans? Shiny!!!
:ttiuwp:
Yeah I've got the Toyosports one right at the back of the engine bay bolted onto the ABS pump. Its an ideal position as it goes because its slightly lower down than the PCV valve so gravity can carry any crud into the tank. Also there's plenty of space below it for getting a tub underneath and draining it.
The Cusco is right at the front of the engine bay bolted to the radiator fan shroud. TBH its a real cr@p position as you need 1.5m of hose in either direction and I'd be quite surprised if even an ant's p*ss worth of oil makes it into the tank.
Will get some pics later. Hopefully I'll have some new toys arrived too that I can show off :p
Stoney Very interesting to know, as you know I have been looking at them myself.
So you are now running two catch cans? Shiny!!!
:ttiuwp:
Yeah I've got the Toyosports one right at the back of the engine bay bolted onto the ABS pump. Its an ideal position as it goes because its slightly lower down than the PCV valve so gravity can carry any crud into the tank. Also there's plenty of space below it for getting a tub underneath and draining it.
The Cusco is right at the front of the engine bay bolted to the radiator fan shroud. TBH its a real cr@p position as you need 1.5m of hose in either direction and I'd be quite surprised if even an ant's p*ss worth of oil makes it into the tank.
Will get some pics later. Hopefully I'll have some new toys arrived too that I can show off :p
07-06-2018, 12:46 AM
jimxms Yeah I've got the Toyosports one right at the back of the engine bay bolted onto the ABS pump. Its an ideal position as it goes because its slightly lower down than the PCV valve so gravity can carry any crud into the tank. Also there's plenty of space below it for getting a tub underneath and draining it.
The Cusco is right at the front of the engine bay bolted to the radiator fan shroud. TBH its a real cr@p position as you need 1.5m of hose in either direction and I'd be quite surprised if even an ant's p*ss worth of oil makes it into the tank.
Will get some pics later. Hopefully I'll have some new toys arrived too that I can show off :p
I had always thought that behind headlight location to be odd. I know that's where the most obvious gap is, (especially if running a TTE charger, which is the most common a on boosted IS.) But when I first saw Stav's, I thought there would probably be more oil in the piping than the can itself!
I know which can I'll be getting now. :thumbup1:
![[Image: tempsig2.jpg]](http://i121.photobucket.com/albums/o227/84stoney/tempsig2.jpg)
ad: It was a tough call to make, but the Supercharged IS200 is being retired. ad:jimxms Yeah I've got the Toyosports one right at the back of the engine bay bolted onto the ABS pump. Its an ideal position as it goes because its slightly lower down than the PCV valve so gravity can carry any crud into the tank. Also there's plenty of space below it for getting a tub underneath and draining it.
The Cusco is right at the front of the engine bay bolted to the radiator fan shroud. TBH its a real cr@p position as you need 1.5m of hose in either direction and I'd be quite surprised if even an ant's p*ss worth of oil makes it into the tank.
Will get some pics later. Hopefully I'll have some new toys arrived too that I can show off :p
I had always thought that behind headlight location to be odd. I know that's where the most obvious gap is, (especially if running a TTE charger, which is the most common a on boosted IS.) But when I first saw Stav's, I thought there would probably be more oil in the piping than the can itself!
I know which can I'll be getting now. :thumbup1:
ad: It was a tough call to make, but the Supercharged IS200 is being retired. ad:
07-06-2018, 01:20 AM
Stoney I thought there would probably be more oil in the piping than the can itself!
Yeah definitely. I could be wrong, but I don't think there is enough pressure coming out of the PCV to push the oil vapor all the way down the tube and into the tank without it re-forming in the pipes.
My fear would be that you'd get a backlog in the pipes and end up clogging up the PCV. Probably far fetched, but I'd rather be safe than sorry. Also, I dont know what adding a 3m length of tubing + catch can to the manifold does to performance? I'd think that it would reduce vacuum/boost pressure a smidge?
Stoney I thought there would probably be more oil in the piping than the can itself!
Yeah definitely. I could be wrong, but I don't think there is enough pressure coming out of the PCV to push the oil vapor all the way down the tube and into the tank without it re-forming in the pipes.
My fear would be that you'd get a backlog in the pipes and end up clogging up the PCV. Probably far fetched, but I'd rather be safe than sorry. Also, I dont know what adding a 3m length of tubing + catch can to the manifold does to performance? I'd think that it would reduce vacuum/boost pressure a smidge?
07-06-2018, 01:37 AM
jimxms Yeah definitely. I could be wrong, but I don't think there is enough pressure coming out of the PCV to push the oil vapor all the way down the tube and into the tank without it re-forming in the pipes.
Well, most of the time there shouldn't be any pressure in there at all. It's *crankcase* pressure remember, that's where all your oil is.
jimxms My fear would be that you'd get a backlog in the pipes and end up clogging up the PCV. Probably far fetched, but I'd rather be safe than sorry. Also, I dont know what adding a 3m length of tubing + catch can to the manifold does to performance? I'd think that it would reduce vacuum/boost pressure a smidge?
No no no, it's nothing to do with vacuum or boost pressure because it's not connected to the pressurised side of the intake! The pressurised area starts at the OUTPUT of the super charger, and ends in the combustion chambers. The catch can isn't anywhere near any of that. It's not connected to the manifold at all.
jimxms Yeah definitely. I could be wrong, but I don't think there is enough pressure coming out of the PCV to push the oil vapor all the way down the tube and into the tank without it re-forming in the pipes.
Well, most of the time there shouldn't be any pressure in there at all. It's *crankcase* pressure remember, that's where all your oil is.
jimxms My fear would be that you'd get a backlog in the pipes and end up clogging up the PCV. Probably far fetched, but I'd rather be safe than sorry. Also, I dont know what adding a 3m length of tubing + catch can to the manifold does to performance? I'd think that it would reduce vacuum/boost pressure a smidge?
No no no, it's nothing to do with vacuum or boost pressure because it's not connected to the pressurised side of the intake! The pressurised area starts at the OUTPUT of the super charger, and ends in the combustion chambers. The catch can isn't anywhere near any of that. It's not connected to the manifold at all.
07-06-2018, 01:45 AM
toxo No no no, it's nothing to do with vacuum or boost pressure because it's not connected to the pressurised side of the intake! The pressurised area starts at the OUTPUT of the super charger, and ends in the combustion chambers. The catch can isn't anywhere near any of that. It's not connected to the manifold at all.
On the 2JZ, the exhaust side PCV is piped into the intake manifold just before the butterfly and the intake side PCV is piped in just after the butterfly. So surely they are both pressured areas?
For example if I was to pull off the pipe from either of the PCV's on a stock IS300 I'd have a vacuum leak of epic proportions.
Edited 19-07-2011, 11:25 AM by jimxms.
toxo No no no, it's nothing to do with vacuum or boost pressure because it's not connected to the pressurised side of the intake! The pressurised area starts at the OUTPUT of the super charger, and ends in the combustion chambers. The catch can isn't anywhere near any of that. It's not connected to the manifold at all.
On the 2JZ, the exhaust side PCV is piped into the intake manifold just before the butterfly and the intake side PCV is piped in just after the butterfly. So surely they are both pressured areas?
For example if I was to pull off the pipe from either of the PCV's on a stock IS300 I'd have a vacuum leak of epic proportions.
07-06-2018, 01:50 AM
jimxms On the 2JZ, the exhaust side PCV is piped into the intake just before the butterfly and the intake side PCV is piped in just after the butterfly. So surely they are both pressured areas?
For example if I was to pull off the pipe from either of the PCV's on a stock IS300 I'd have a vacuum leak of epic proportions.
The intake side at the very least should have a 1-way valve in it where it connects to the cam cover. I'd be very surprised if the exhaust one hasn't as well. This prevents boost pressure from entering the crankcase, which would just pump all the oil out of your sump in a few seconds.
Things you should look out for when adding forced induction to N/A engines
jimxms On the 2JZ, the exhaust side PCV is piped into the intake just before the butterfly and the intake side PCV is piped in just after the butterfly. So surely they are both pressured areas?
For example if I was to pull off the pipe from either of the PCV's on a stock IS300 I'd have a vacuum leak of epic proportions.
The intake side at the very least should have a 1-way valve in it where it connects to the cam cover. I'd be very surprised if the exhaust one hasn't as well. This prevents boost pressure from entering the crankcase, which would just pump all the oil out of your sump in a few seconds.
Things you should look out for when adding forced induction to N/A engines
07-06-2018, 01:59 AM
However, my original comment was that if you connect 3m worth of hose and a catch can to the intake manifold, so you're replicating the OEM setup but filtering the oil out with a catch can and also introducing a long length of hose (because there is nowhere closer to mount a can), would/could that have a minor negative effect on performance, as in effect you're now 'loosing' intake pressure to 3 metres worth of 10mm bore hose and a 500ml catch can.
Yeah no doubt it does, as that makes perfect sense.
However, my original comment was that if you connect 3m worth of hose and a catch can to the intake manifold, so you're replicating the OEM setup but filtering the oil out with a catch can and also introducing a long length of hose (because there is nowhere closer to mount a can), would/could that have a minor negative effect on performance, as in effect you're now 'loosing' intake pressure to 3 metres worth of 10mm bore hose and a 500ml catch can.
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