Thread: provent filter and another idea

Technically it is illegal to turn your (OEM) closed crankcase vent system into an open vent system (the same way it is illegal to remove your cats or EGR).

The other point, is that you will lose more oil than you think - up to 300 ml between services. This is the lighter fraction of the oil, so without it your engine will sludge-up more rapidly.

Catch cans are not much use on a turbo diesel. You would be surprised how blowby you actually get.

It's basically a catch can but has two major features over a catch can in that it has a coalescing filter to separate the oil vapour and filter the returned crank vent gases while also returning the collected oil.

Catchcans work on petrol or diesel in exactly the same way. the difference with catchcans is they generally have no separation media and rely on slowing the gas flow to suspend oil vapour. You then need to clean them every so often.
Doof doof boy wonders use them in bling toy racers plumbed the same way but you now see a lot of provents being used now in place of.

Cheers

Andrew


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cheers fellas.

seems the provent is the way to go then.

I read some where it should also stop oil vapour from collecting in your intercooler.

Originally Posted by Lariens

I read some where it should also stop oil vapour from collecting in your intercooler.

That's the whole point of a catchcan and Provent...


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the provent is the catchcan right?

just so im still on the right page.

im doing some modifications to keep as clean as possible, then will move onto performance.

ive done all the 'fun' stuff like suspension, bar work, spotties, uhf, tyres...

now im doing the EGR and provent, and any other little things that might help keep her clean...

then the next step is intercooler, chip/comp upgrade, and possibly a new exhaust if needed.

Originally Posted by jackerz

the provent is the catchcan right?

just so im still on the right page.

im doing some modifications to keep as clean as possible, then will move onto performance.

ive done all the 'fun' stuff like suspension, bar work, spotties, uhf, tyres...

now im doing the EGR and provent, and any other little things that might help keep her clean...

then the next step is intercooler, chip/comp upgrade, and possibly a new exhaust if needed.

Saying a provent is the same as a catch can is like saying the Wright brothers' plane and an F111 are both the same. Sure, they can both fly under their own power, but with hugely varying levels of success.

ok, so the provent is the better option of them all then.?.