oil catch can
03-02-2009, 11:42 AM
#4
Staging Lane
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i dont car for the design of the revxtreme dont really like the long skinny look! the Saikou Michi looks ok and i like the way is is set up internaly! What about any other brands?
03-02-2009, 11:56 AM
#5
Unfortunately, it's 'slim pickens' when your looking for a catch can that is designed to work. Most of the others on the market are empty or employ aspects of the Saikou Michi and RevXtreme internal design.
To understand why the RevXtreme is long and thin, you have to understand that the catch can must slow PCV flow to 1 meter/second MINIMUM for carry over oil to drop out of suspension. Internally, the Saikou Michi and RevXtreme are very similar. One major difference is the RevXtreme employs a one-way check valve in the port on the side of the can.
I can post the math behind this if you would like.
To understand why the RevXtreme is long and thin, you have to understand that the catch can must slow PCV flow to 1 meter/second MINIMUM for carry over oil to drop out of suspension. Internally, the Saikou Michi and RevXtreme are very similar. One major difference is the RevXtreme employs a one-way check valve in the port on the side of the can.
I can post the math behind this if you would like.
03-02-2009, 07:02 PM
#6
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I think that i want to go with the revxtreme after looking at some of the phots it really dont look all that bad but when i go to there website it doesnt give anyway to purchase one?
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03-02-2009, 07:37 PM
#8
If you care to wait about 2 months, they'll be a new one out soon that doesn't use the vacuum from the intake to vent the crankcase. That vacuum line gets capped off and oil entering the intake is 100% eliminated, a thing of the past.
Thats all that can be said for now.
And just for the record, I don't know what boob of an engineer designed a system where oil goes back through an "air" intake....unbelievable. Intakes are for air.
Thats all that can be said for now.
And just for the record, I don't know what boob of an engineer designed a system where oil goes back through an "air" intake....unbelievable. Intakes are for air.
Last edited by LS6427; 03-02-2009 at 07:58 PM.
03-03-2009, 07:36 PM
#10
If you care to wait about 2 months, they'll be a new one out soon that doesn't use the vacuum from the intake to vent the crankcase. That vacuum line gets capped off and oil entering the intake is 100% eliminated, a thing of the past.
Thats all that can be said for now.
And just for the record, I don't know what boob of an engineer designed a system where oil goes back through an "air" intake....unbelievable. Intakes are for air.
Thats all that can be said for now.
And just for the record, I don't know what boob of an engineer designed a system where oil goes back through an "air" intake....unbelievable. Intakes are for air.
I'm anxious to see what design would work effectivly, last long enough for daily street use, and not cost $500 plus. Keep us informed!
03-03-2009, 10:11 PM
#11
Without a external vacume pump there is no way to evac the combustion byproducts unburnt fuel, moisture, etc. so the intake vacume is the only constant source on a daily driver. Now an electric vac pump that would hold up for extended use would be nice, but then you need an adjustable vac relief valve with filtered air intake to make sure to much vac is not pulled on the crankcase....this pulls oil off the wrist pins & mains. On our drag only motors we run crank driven vac pumps from Aerspace Components or Moroso, with a vac relief valve in the oposite valve cover as the vac pump pulls from (go to ReherMorrision.com to see a good example) so the crankcase gets a good cross-flow of fresh air through the crankcase, and this is run through the vac pump and plumbed to a vented catch can (1 qt plain hollow can w/a baffeled vent) and since we run methanol in these 1,000 HP drag motors, 2-3 runs and it is 1/2 full of the water vapor pulled out of the crankcase....that would otherwise be condensing into the oil after every cool-down. Remember, a proper street crankcase ventelation system does far more than just "vent" excess crankcase pressure.
I'm anxious to see what design would work effectivly, last long enough for daily street use, and not cost $500 plus. Keep us informed!
I'm anxious to see what design would work effectivly, last long enough for daily street use, and not cost $500 plus. Keep us informed!
I am looking at vacuum pump systems now and they are expensive.
03-04-2009, 02:26 PM
#13
Without a external vacume pump there is no way to evac the combustion byproducts unburnt fuel, moisture, etc. so the intake vacume is the only constant source on a daily driver. Now an electric vac pump that would hold up for extended use would be nice, but then you need an adjustable vac relief valve with filtered air intake to make sure to much vac is not pulled on the crankcase....this pulls oil off the wrist pins & mains. On our drag only motors we run crank driven vac pumps from Aerspace Components or Moroso, with a vac relief valve in the oposite valve cover as the vac pump pulls from (go to ReherMorrision.com to see a good example) so the crankcase gets a good cross-flow of fresh air through the crankcase, and this is run through the vac pump and plumbed to a vented catch can (1 qt plain hollow can w/a baffeled vent) and since we run methanol in these 1,000 HP drag motors, 2-3 runs and it is 1/2 full of the water vapor pulled out of the crankcase....that would otherwise be condensing into the oil after every cool-down. Remember, a proper street crankcase ventelation system does far more than just "vent" excess crankcase pressure.
I'm anxious to see what design would work effectivly, last long enough for daily street use, and not cost $500 plus. Keep us informed!
I'm anxious to see what design would work effectivly, last long enough for daily street use, and not cost $500 plus. Keep us informed!
It will run all the time at a lower vacuum suction setting then when our cars are at idle (where there's the most suction)....but when the car comes to a stop it will run at a higher setting just like our cars do now, then at engine shut-down it will continue running on high for 1 minute evactuating all the harmful gases.
We'll see what happens. But this oil in the intake thing has got to stop.
And abouit it venting to the atmosphere, aftermarket people really don't care. .001% of cars using this type of system can't effect our atmoshpere at all. The vent line from the CC can also be vented to the exhaust by a metal line and a bung hole so it gets further burned before exiting the tail pipes. We'll be making one of those too. Both will work.
I'm still waiting on a few different pumps to arrive from China.
People who already have a CC can just buy the pump and wiring or buy an entire unit.
03-04-2009, 03:24 PM
#14
Gonna be tested soon, hopefully in a couple weeks. Electric pump and a CC.
It will run all the time at a lower vacuum suction setting then when our cars are at idle (where there's the most suction)....but when the car comes to a stop it will run at a higher setting just like our cars do now, then at engine shut-down it will continue running on high for 1 minute evactuating all the harmful gases.
We'll see what happens. But this oil in the intake thing has got to stop.
And abouit it venting to the atmosphere, aftermarket people really don't care. .001% of cars using this type of system can't effect our atmoshpere at all. The vent line from the CC can also be vented to the exhaust by a metal line and a bung hole so it gets further burned before exiting the tail pipes. We'll be making one of those too. Both will work.
I'm still waiting on a few different pumps to arrive from China.
People who already have a CC can just buy the pump and wiring or buy an entire unit.
It will run all the time at a lower vacuum suction setting then when our cars are at idle (where there's the most suction)....but when the car comes to a stop it will run at a higher setting just like our cars do now, then at engine shut-down it will continue running on high for 1 minute evactuating all the harmful gases.
We'll see what happens. But this oil in the intake thing has got to stop.
And abouit it venting to the atmosphere, aftermarket people really don't care. .001% of cars using this type of system can't effect our atmoshpere at all. The vent line from the CC can also be vented to the exhaust by a metal line and a bung hole so it gets further burned before exiting the tail pipes. We'll be making one of those too. Both will work.
I'm still waiting on a few different pumps to arrive from China.
People who already have a CC can just buy the pump and wiring or buy an entire unit.
