1 Attachment(s)
Mann Hummel Provent 200 filter replacement, cleaning and after market options
Quote:
Originally Posted by
twr7cx
I won't get involved in debating the difference or how they work as I don't much care for the ProVent 100 specifications. As outlined above it's undersized for Td5 application therefore it's specifications are irrelevant and don't concern me.
I'm not sure what you do for work, or did if your retired, but based on your shared views above I'd assume it wasn't a role where you were rewarded for your original ideas and efforts... I can't say I like your view that if you disagree with the price it's ok to support blatant rip off frauds. The Mann Hummel product is priced accordingly likely due to the research and development costs associated with getting it to the market - when you look at the cost of the replacement filters it shows that the original purchase price is actually not that much more than a filter cost. Compared to other competing brands that have significantly worse performance results despite often equal or higher pricing. Then there's the fact that the company has to offset there financial losses from those that support dodgy rip off products through the sales of their genuine units...
Interesting that you bring Western Filters up as an authority for the use and application of the ProVent 100 on the Td5. Firstly, they only sell genuine Mann Hummel products so wouldn't have recommended a 100 clone at all. Secondly, why would you trust their advise over the actual manufacturers who designed, developed and tested the product and advises that it's undersized. It seems like picking and choosing to achieve your desired result. If your happy with it, best of luck to you.
Whilst desiring not to fan the flames .... I feel the need to set the record straight. A stock Td5 produces a maximum of 90kw at 4200rpm and the PROVENT 100 that I researched and recently installed is indicated in the Mann Hummel’s own specifications as being suitable for my application ie for engines up to 100kW and nobody drives at the redline 100% of the time.
It is the correct specification for a stock Td5, and M&H clearly say so.
Peace.
NB: I ditched the stock depression valve and substituted a brass elbow so there was full time draw on the crankcase.
Attachment 155621
Mann Hummel Provent 200 filter replacement, cleaning and after market options
Quote:
Originally Posted by
Tombie
Bob,
See on the left - Reference value. Not limit.
The line below is far more relevant.
Yes, it’s not a limit. [emoji6] but notice it’s not “undersized” as was suggested in an earlier post.
1 Attachment(s)
Mann Hummel Provent 200 filter replacement, cleaning and after market options
Quote:
Originally Posted by
Tombie
For the blow-by volume it (P100) is undersized..... the Kw rating is worded as very clearly indicative, not Up to. Crankcase flow is the needed measure.
For a Discovery it is even undersize by kW
And for a tuned (any) TD5 it very much so is.
Put in the simplest terms - the Provent 200 is the correct unit for a TD5, especially with a tune. The Provent 100 is completely unsuitable, even for a brand new run-in TD5 with almost zero wear.
This is reality, and will eventually lead to those pesky leaks etc due to crankcase pressure.
Thanks, all understood, but consider this statement:- “figures quoted in Mann & Hummel’s German produced documents are intended for industrial applications ( the original purpose of the product ) ie stationary engines that run at constant maximum power output and therefore maximum engine blow by. These conditions are not relevant when applied to 4WD vehicles.” [source flashlube products/catch can pro]
My install...
Attachment 155650