Catch can and intake cleaning difference?
i dont see LS2 bait's question answered. TLewis, you are still explaining things as if a PCV system is installed, LS2 bait is asking about a motor with breathers, and no PCV system. if your still getting oil on the intake on a properly operating motor, with no PCV system, how can a PCV catch can eleminate the oil in the intake when there is no PCV system for the catch can to eleminate vapors?
Last edited by 67goatman455; Jun 18, 2008 at 10:36 PM. Reason: sp
Yes...that is how I took it.....if you are talking about a motor with only breathers & no PCV system at all, then some reversion (in slow motion on a wet-flow bench you can see the reversion pulses back into the intake system & this can push a small amount of oil back into it if there is any blow-by at all), may be occuring, but unless it is a track only engine that the oil is changed every few races the caustic & harmfull vapors are not being pulled or flushed out so every time the motor cools back down they re-condense back into the cranckcase & re-contaminate the oil. On our race only engines we use belt driven vacuum pumps with relief valves to evac & control the amount of vacuum pulled (no more than 12-14 inches or the vaccum starts to pull oil off the wrist-pins & main journals), but we build these with low-tension rings & better sealing of all gaskets, and for a street motor that is impractical.
For a street application you absolutley need a system that flushes out the harmfull by-products of combustion....not just crankcase pressure relief.
Yes...that is how I took it.....if you are talking about a motor with only breathers & no PCV system at all, then some reversion (in slow motion on a wet-flow bench you can see the reversion pulses back into the intake system & this can push a small amount of oil back into it if there is any blow-by at all), may be occuring, but unless it is a track only engine that the oil is changed every few races the caustic & harmfull vapors are not being pulled or flushed out so every time the motor cools back down they re-condense back into the cranckcase & re-contaminate the oil. On our race only engines we use belt driven vacuum pumps with relief valves to evac & control the amount of vacuum pulled (no more than 12-14 inches or the vaccum starts to pull oil off the wrist-pins & main journals), but we build these with low-tension rings & better sealing of all gaskets, and for a street motor that is impractical.
For a street application you absolutley need a system that flushes out the harmfull by-products of combustion....not just crankcase pressure relief.
For a street application you absolutley need a system that flushes out the harmfull by-products of combustion....not just crankcase pressure relief.
Do you have a name, Id like to order one
