GEN3Typhoon
New member
OH... I did not even think of that... I see what you are talking about now.
got a quick question... about the PCV system
- Thread starter E-Rue
- Start date
ed hess
race or get outta the way
so i called em up .....nope not compatible with oil
so we need mr waller to let us know whose pumps he has seen do this.
i asked em one other question. "y'all get this same question a lot?"
answer: yep
next question: any idea who makes one that can?
answer: ask summit.
hows that for going around in circles.
ed
so we need mr waller to let us know whose pumps he has seen do this.
i asked em one other question. "y'all get this same question a lot?"
answer: yep
next question: any idea who makes one that can?
answer: ask summit.
hows that for going around in circles.
ed
jwaller
Evil Genius/SyTy Guru
ed hess said:
Remember that when you go into boost your exhaust becomes pressurized. so that method of putting a line in the exhaust only works when your in vacume.
so when your in boost, making the most blowby. your goin to pressurize the engine by not evacuating the case.
These ppl sell a elec vac pump. I remember it was ~250, call them to be sure..
http://speeddemonmotorsports.com/catalog/vacuumpump.html
well i drove around thismorning and at lunch, and so far, i have no more oil coming from the stoopid PCV system.
wanna know what i did?
i took the push in filter off the typhoon, and stuck it in the passengerside valve cover. now i just have 2 push in filters and NO PCV system at all. so far so good on the oil problem, but i want to drive it around a couple more days to be sure. also, as a side note, the only difference i have noticed is a slight smell when i first open the hood after driving it. other than that....nothing negative that i can tell. almost sounds too good to be true. ill give an update in a couple days when ive beat on it some more. lol
e
wanna know what i did?
i took the push in filter off the typhoon, and stuck it in the passengerside valve cover. now i just have 2 push in filters and NO PCV system at all. so far so good on the oil problem, but i want to drive it around a couple more days to be sure. also, as a side note, the only difference i have noticed is a slight smell when i first open the hood after driving it. other than that....nothing negative that i can tell. almost sounds too good to be true. ill give an update in a couple days when ive beat on it some more. lol
e
GEN3Typhoon
New member
this was how I had mine.. .worked fine until the push in filter became saturated with oil on it edges.. then it just started leaving an oil mist on the valve covers.. and my windshield.
My 2 cents or priceless?E-RUE said:
The Problem: All internal combustion engines have 'blowby'. This is the term used to describe the escape of combustion gases past the piston rings and into the crankcase. These gases contain, water, carbon dioxide, unburned fuel, carbon monoxide, oxides of nitrogen, acids, and carbon particles. If allowed to condense into the engine oil, these components will quickly degrade the oil's lubricating ability and combine to form sludge and varnish.
The Fix: Positive Crankcase Ventilation (PCV). A system designed to use vacuum to draw fresh air through the crankcase where it can pickup and carry away most of the above nasty gases. With most systems, these gases are routed back into the intake through a control valve (PCV Valve) where the combustion process consumes them.
*** So, IMO not a good idea to do away with this system.***
How does the OEM SyTy two valve PCV system work?
The 'rear' PCV valve is connected to intake vacuum and works the same as any other vehicle's system until intake vacuum is replaced by boost pressure. At that point this half of the system shuts down (the valve is closed 'back seated' by pressure).
When not under boost, the 'front' PCV valve is shut down (back seated by vacuum from the 'rear' PCV valve). This 'front' PCV valve is connected to a port on the air tube between the air filter and turbo intake. Under boost conditions, crankcase pressure increases and air flow past the air tube fitting increases creating a draft vacuum. The combined pressure and vacuum will open the 'front' PCV valve and allow gases to pass to the intake. This flow is controlled by the valve and limited so as not to 'flood' the intake with an unknown mixture of unburned fuel vapor.
Whenever the amount of blowby exceeds the capabilities of the PCV system, increased crankcase pressure will also force some vapors to reverse flow out of the fresh air intake (on left valve cover) to the air cleaner box where it also mixes with engine intake air.
The system is designed to extract a normal amount of blowby vapors. If you are blowing oil out, something is wrong - too much blowby, missing oil baffles, or something upsetting the air flow in the crankcase (gaskets/seals leaking air in at points other than the left valve cover will do this).
More of my 2 cents or priceless?
http://www.carcraft.com/tipstricks/50558/index1.html
I really don't believe that a vacuum pump would survive for too long considering the crap that will be passing though it. At least junkyard pumps would let you test it out without breaking the bank.
Here's the mods that I would try:
1) Use the exhaust extraction system for all non-boost operation.
2) Install an electric A.I.R. pump (from a late 90's GM truck) to the fresh air intake side (left valve cover). The pump would be controlled by a pressure switch to only run during boost. The combined pump and blowby pressures should be enough to keep the exhaust extraction working during boost.
0 cents or no sense?
Ed, is this your pump?ed hess said:
http://www.carcraft.com/tipstricks/50558/index1.html
I really don't believe that a vacuum pump would survive for too long considering the crap that will be passing though it. At least junkyard pumps would let you test it out without breaking the bank.
Here's the mods that I would try:
1) Use the exhaust extraction system for all non-boost operation.
2) Install an electric A.I.R. pump (from a late 90's GM truck) to the fresh air intake side (left valve cover). The pump would be controlled by a pressure switch to only run during boost. The combined pump and blowby pressures should be enough to keep the exhaust extraction working during boost.
0 cents or no sense?
