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    Thread: DUAL PLENUM MANIFOLD HOLLAA

    1. Member chrisbmx68's Avatar
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      04-17-2006 02:48 PM #26
      i used to have that catch can as well the gaskets arnt the best its a good idea to take the ends off and use some rtv to seal them up

    2. 04-17-2006 10:10 PM #27
      looks great man!

    3. 04-17-2006 11:35 PM #28
      Hey I live in Hamilton Ontario. Is it cool if we put H A H A on our cars?
      DAS SOOT

      IG: das_soot

    4. 04-19-2006 08:27 AM #29
      would you consider selling them if they done the business on the dyno? and roughly based on how long it took on your own how much would you charge.

    5. 04-19-2006 01:31 PM #30
      at first i considered selling them...but those radiused endcaps were way too hard to integrate into the large plenum
      if i were to sell them...i would make them with flat endcaps
      and based on the time...sell them for somewhere around $700-$800 (pending)
      unpolished, probably just bead blasted
      maybe 100 more to polish the plenums

    6. 04-22-2006 04:37 PM #31
      rather than do i dyno test...which would be difficult because i have no "before" results
      could i test the manifold on a flow-bench? i know they are for cyl heads but can they test a maniold too? im not familiar with the process
      where could i find a flowbench anyhow, (without have to rig one up)?

    7. Member WOT's Avatar
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      04-22-2006 05:31 PM #32
      yeah, you could test them on a flow bench.
      any place that does head porting should have one. you might have to make an adapter to the flowbench but I am not sure, best to talk to a shop.

    8. 04-22-2006 06:59 PM #33
      It would be sweet if you could find someone who has an engine with individual EGT sensors or 4 O2 sensor bungs. I would be more interested in seeing how it affects airflow to each individual cylinder, because that's the whole purpose of the manifold.
      I have been interested in making a similar manifold, but I would probably use composites. Looks amazing, though! Excellent fabrication work!

    9. 04-26-2006 05:53 PM #34
      Wouldnt u be able to test the flow from each runner individually on a flow bench,i dont know how they work,but i assume u could measure what coming from each runner,which is all u really need to know.
      If u do get round to flow benching this,would be a cool ideal to try and get another couple of popular style manifolds to test also,as u said there is more work in the dual plenum mani and what u really want to know is how much better is it over the normal types on manifolds(also a std inlet would be worth comparing also)
      But on looks alone it's really nice and i hope u do get to test it and some others to compare against [IMG]http://**********************/smile/emthup.gif[/IMG]

    10. 04-26-2006 06:18 PM #35
      Flowbench testing manifolds is of limited value, it can show some potential problems with a manifold but not all because in a plenum type manifold under running conditions, there is a lot of interaction between runners and these are conditions that can not be replicated on a flowbench.

    11. 04-26-2006 08:31 PM #36
      Quote, originally posted by ABA Scirocco »
      Flowbench testing manifolds is of limited value, it can show some potential problems with a manifold but not all because in a plenum type manifold under running conditions, there is a lot of interaction between runners and these are conditions that can not be replicated on a flowbench.

      i was also thinking the same thing.....particularly with intake pulse reflection and dynamics that only an operating engine can test
      but if flowbenching is cheap enough...its still worth a shot

    12. 04-26-2006 09:08 PM #37
      To put it another way, a manifold that performs poorly on a flowbench will most likely perform poorly on an engine but a manifold that performs well on a flowbench will not necessarily perform well on an engine.
      A flowbench is useful for determining how restrictive a manifold is, whether or not the flow through each runner is fairly balanced although that is somewhat effected by the interaction between runners and the plenum so it's only good for showing gross imbalances.


      Modified by ABA Scirocco at 9:13 PM 4-26-2006

    13. 05-08-2006 01:55 PM #38
      awsome stuff here

    14. Member baldoner01's Avatar
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      10-13-2010 02:55 AM #39

    15. Member syracusegli's Avatar
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      10-14-2010 10:31 PM #40
      you would be better off getting exact dimensions and put it through CAD, a good program will show you flow and cylinder volume
      Quote Originally Posted by 2mAn View Post
      go crash into a hybrid
      For powder coating and fabrication ---> www.roguemetalworks.com
      IG- Roguemetal

    16. Member arethirdytwo's Avatar
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      08-26-2012 01:03 AM #41
      Nice

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