provent has much better filter than the others, plus it has bypass valves in case of blockage.
provent has much better filter than the others, plus it has bypass valves in case of blockage.
Hey pete, forget my technical opinion... I wouldn't have a clue, but that one looks a bit... ugly! From what I've read on all the threads I'll just get an eBay one that I like and just make sure I get the install and medium right.
Have you checked out the recovery hook thread? Bit of a rethink...
It will increase the length of hose, but my guess is that since it's all exhaust + oil and isn't needed for the smooth operation of the engine, the length doesn't matter to the engine. It will matter in terms of cost, and it will matter that it doesn't get in the way of other stuff.
If anything, the longer hoses will give the oil more chance to cool and condense.
What about this sort of design? And possibly have longer inlet hose? Its from 42 Draft Design catch can.
I was thinking about mounting the provent behind the bullbar somewhere. Would this lead to any problems as the hoses will be quite long? Havent looked for a space behind there yet but was an idea?? Longer hoses would aid in the cooling i was thinking also.
Old.Tony said:If you're filtering it out, you'd need a very fine filter and it wouldn't last long before it was blocked, and that could get dangerous.
I completely agree, which is why the provent (made by Mann &Hummell) has been specifically designed for its stated purpose, it has a max flow rate of 200L/min and suitable for engines up to 350kW with a pressure relief valve fitted. The filter has been designed not get blocked I'm sure the membrane is oleophobic (oil phobic, a bit like rainex for windows which is hydrophobic (water phobic)
The coalescing design of the filter is likely to be quite different to other water/oil seperator filters which may well block and cause back pressure. The company which specialise in industrial filters has put a lot of r&d into the provent range, (google search the words provent and pdf for the spec sheet) slightly more scientific than pushing steel wool into a catch can whose only design consideration was to choose what colour it comes in!
I know they are expensive but I would rather pay twice as much to do more than twice the job
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