bhodgkiss
Veteran Member
I presume there isn't a handed BRM version for B5 Passats?
Was there a longitudinal version of this? I guess not
Was there a longitudinal version of this? I guess not
some pd130's look very similar to the BRM but in mirror image flavor, would be interesting to see flow data on oneI presume there isn't a handed BRM version for B5 Passats?
Was there a longitudinal version of this? I guess not
Appreciate it! will get something lined up state side, just need a few more manifolds.I got a snail and a D24 ported sitting on the shelf the cost of shipping is high to you!
Bob Mann
They were intact and held open.
Agreed on the cam, this manifold will shine on big turbo setups with cams. On a stock setup your turbo is the main flow restriction.
might be able to work something out, adds a lot of variables though, feel free to shoot us an email at info@malonetuning.comI just bought a ported head from Darkside. I’d like to see what the manifolds flow on it.
Definitely the way to go, wonder how close it'll be to head flow! Noticeable improvement on log style homebrew units at 30+ psi vs stock ahu/alhWill love to see how great the D24 intake outperforms the small PD intakes
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From the pictures of the manfolds mounted on the flow bench, it looks like the BRM was tested without any EGR valve or "race pipe" while the BEW had an EGR valve attached.
Curiously, there is also a picture of the various tested manifolds together on the floor, and these DO have EGR valves. Along with BEW manifold complete with egr. But were the other manifolds also tested with EGR valves installed, compared to BRM without EGR?
I understand the purpose of this test was marketing to lay the groundwork for promoting sales of the BRM manifold adapter, but was the manifold tested with the adapter attached at all? it seems to me the potential customers would want to know how the actual part performs compared to the others. Apples to apples, kind of thing. otherwise it's kind of cherry picking data to support a pre-desired outcome instead of a scientific inquiry.
Is this intake a direct bolt on?...D24?...is this a volvo intake, if so from what year
I believe that these tests are extremely flawed because their acting like a natural aspiration rather than forced air as we have. They have value in than the manifolds restriction is different between the models, however, without forced air simulation the values really show nothing other than the one that flows more has larger tubes and a sweep giving them the ability for more air to flow through them under natural aspiration.An intake manifold's flow theoretically cannot exceed the cylinder head flow. We can see here that there is not a lot of room for improvement over the BRM intake manifold.
It would be interesting to see if someone wants to perform flow testing with a ported cylinder head. Find out if a custom intake manifold will outflow a BRM intake manifold (and with even distribution across 4 ports) by a worthwhile margin.
The length design was definitely figured well for aerodynamics of forced induction versus a natural aspiration engine requiring equal length for equal resistance. An oversized port has less resistance and based on the stock power expectancy, as Owain stated himself a cost benefit comparison was done, and the OEM design was the balance between performance and cost for stock means as theirs was for the value of making an intake versus adapter. Benefits of further improvement were not great enough at the time, however, as the demands on emissions got greater the value became greater. Hence they upgraded the intakes over the years as needed. Most likely they had all these designs in the 1980's and just never found it cost effective to implement.This is actually very interesting scientific data. Never did understand why VW insists on all its older TDI manifolds to have a strange unequal length design. A little more effort and it could have been perfected.
This is the winner in the end because it is an equal pressure and distribution plenum, the short ram has minimum resistance to airflow. It wins over the other intakes overall because it has no intake sweep, or change of direction ahead of the draw tube ports. The plenum is four times the size of the combined orifice size which means that all four cylinders could theoretically draw an even amount of air at the same time, which will never be the case. The only real improvement is to port and polish the draw and intake inlet where it has the most resistance to flow.Is there a mirrored BRM intake for Passat B5's please?
And what do we think to this log style SDI item?
https://m.ebay.co.uk/itm/VOLKSWAGEN...103399?hash=item43eebbf1e7:g:XJ0AAOSwsXVZY1Wp