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  1. #1
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    HPF's "New" Single Turbo Manifold

    Quote HPF from the other place, figured we could get better technical opinions here. What do you guys think?

    We've turned the non-divided manifold into a divided manifold to allow the Vishnu to work correctly. The divider flange fits inside the turbo itself and this allows both banks to independently monitor the air fuel ratios and make the correct adjustments. We'll have it back together and on the dyno shortly. Time for some big power. Click here to enlarge

    Chris.

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    Never thought I would see the day...
    Click here to enlarge Originally Posted by Terry@BMS Click here to enlarge
    Life is so much more fun with a nemesis. I miss Shiv. Click here to enlarge
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  2. #2
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    5 out of 6 members liked this post. Yes Reputation No
    No offense to HPF and the name they have built for themselves but between this turbo manifold fiasco, their N54 oil catch can, their never ending pointless videos, the marketing guy talking about sticking gauges on the steering column as part of their turbo kit, etc, they continue to completely underwhelm me. What they did up there is a quick fix like like you do in the garage at 2am to get the car running for racing the next day until you can redesign the manifold properly. I hope that isn't the final design? I honestly expected them to come to the plate with a solid cast manifold that maybe cost $2k more than it's worth but is almost worth it because it's so beautiful. And what they have there is something my local muffler shop can make.

    Maybe they can win back my confidence with their intake manifold w/ piggyback injectors if that works out.
    Last edited by Terry@BMS; 03-06-2012 at 04:51 PM.

  3. #3
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    Click here to enlarge Originally Posted by Terry@BMS Click here to enlarge
    No offense to HPF and the name they have built for themselves but between this turbo manifold fiasco, their N54 oil catch can, their never ending pointless videos, the marketing guy talking about sticking gauges on the steering column as part of their turbo kit, etc, they continue to completely underwhelm me. What they did up there is what you do in the garage at 2am to get the car running for racing the next day until you can redesign the manifold properly. I honestly expected them to come to the plate with a solid cast manifold that maybe cost $2k more than it's worth but is worth it because it's so beautiful. What they have there is something my local muffler shop can make.

    Maybe they can win back my confidence back with their intake manifold w/ piggyback injectors if that works out.
    Agreed, that is pretty ghetto.

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    I think at this point, they are just trying to get it running to prove that they can make some numbers. I can't imagine they are going to sell a hack job like that.

    Even if that's the case, HPF should probably clarify whether they will design a new mani or not.

  5. #5
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    lol thats pretty bad
    JB4LIFE

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    Wow, that looks weird. What is that square opening for? Never saw that on a manifold before Click here to enlarge

    Looks like HPF is feeling the competition in their neck and they just want to prove at all cost that they can get a single kit running.

    On a side note: who would need their intake manifold with secondary injection when our standard fueling system can support over 600 whp? The 0,0001% of customers who want to push the N54 to 1000whp? That is just a waste of R&D and doesn't need to be marketed at all.

    HPF failed to realize that the N54 is very different from the S54 they are used to work on.

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    1 out of 1 members liked this post. Yes Reputation No
    Here's what HPF should do:

    Call steed speed and Cobb and it's all good.

  8. #8
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    Im sure HPF will be making a final proper compeleted version. Lets just wait for HPF to sort it out.
    Click here to enlarge



    EURO 04 M3 Current Mods:GC DAs, Eibach Sways, PF RTAB's, RE RCAs, INTRAVEE II, Black Roundels, ///MFEST Badges, Depo's, Screen protector for NAV display, VCSL Bumper + Race Lip & CF Trunk & CF Rear Diffusor, DIETZ TV in Motion, SS= V1 Headers + catless pipes + X-Pipe + SS Sport Exhaust, Z8 Starter Button, Lamin-X, OEM CSL interior, OEM CSL Steering, OEM CSL Intake, OEM CSL Roof, MSS54HP + OEM CSL Tune, BBS CH's, LIGHTWERKZ, 355mm ST40 BBK, BW Oil Cooler....

  9. #9
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    Click here to enlarge Originally Posted by Autobahn335i Click here to enlarge
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    Wow, that looks weird. What is that square opening for? Never saw that on a manifold before
    It is where the turbo is bolted on to. It is supposed to look like that.
    Only the splitter is kinda test phase I guess...
    Turbo housing:

    Click here to enlarge
    There are two theories to arguing with women. Neither one works

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    Click here to enlarge Originally Posted by DavidV Click here to enlarge
    It is where the turbo is bolted on to. It is supposed to look like that.
    Only the splitter is kinda test phase I guess...
    Turbo housing:
    Ah, I see. Thanks! I thought the turbo connected to the big round opening. Is that for an external wastegate?

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    Click here to enlarge Originally Posted by Autobahn335i Click here to enlarge
    Is that for an external wastegate?
    Yes, that's where the wastegate goes.
    There are two theories to arguing with women. Neither one works

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    Click here to enlarge Originally Posted by Autobahn335i Click here to enlarge
    Ah, I see. Thanks! I thought the turbo connected to the big round opening. Is that for an external wastegate?
    turbos usually bolt up to a square/ rectangle opening. only if its a v-band mounted turbo will the turbo flange be round
    JB4LIFE

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    I wonder how long those small tack welds will hold up once they start running the car.

    Definitely not the solution I expected after a month of silence.

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    Wait wtf? Why are o2 sensors in individual cyl2 and cyl4 runners like that? What happens with AFR when they're not firing?? I really dont get this at all
    Click here to enlarge

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    I cant beleive that 1) HPF would chose a tune without doing enough reserach to know that the banks had to be seperated. It's not like the information wasnt available. 2)A company with the reputation that of HPF, would chose the v5 over standback tuning.

  16. #16
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    Total fail in my opinion. Makes me wanna sell my HPF intercooler so that I am no longer associated to them in any way...
    From all the things I've lost,
    I miss my mind the most!
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  17. #17
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    I'm just really surprised, hopefully this is just there to start the car and not push...very unreliable design as the dme will adjust afr based on only cyl2 and 4 input....why would they do this i'm really confused
    Click here to enlarge

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    Click here to enlarge Originally Posted by dzenno Click here to enlarge
    Wait wtf? Why are o2 sensors in individual cyl2 and cyl4 runners like that? What happens with AFR when they're not firing?? I really dont get this at all
    The 3 runners merge together at that point , the plate just blocks the flow so they would not interfere.

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    1 out of 1 members liked this post. Yes Reputation No
    Just looks like a quick and simple sollution that probably will do the job , then again i'm not a velocity expert but it seems to me that plate will cause some strange turbulence at that point.

  20. #20
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    I'm blind then or the merge is next to nonexistant...i guess a better pic might show it better
    Click here to enlarge

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    Click here to enlarge Originally Posted by dzenno Click here to enlarge
    I'm blimd then or the merge is next to nonexistant...
    Cilinder 2 runner looks completely open and in connection to 1 and 3 at that point. At least thats what i make up from the picture.

  22. #22
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    If you can see cyl3 merge you got some really funky vision Click here to enlarge let's hope it works out
    Click here to enlarge

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    mmmmm yeah its the one with the wastegate connection. But you might be correct that the merge is too small and the gasses from 1 and 3 just blow by the 2nd runner.

  24. #24
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    The o2 sensor tip will protrude inside a bit so hopefully they test fitted the o2 sensor placement and they'll be able to reach deep down enough to see the complete bank...anyways, not my cup of tea but i'm looking forward to seeing some numbers
    Click here to enlarge

  25. #25
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    The O2 sensors should be downstream from the merge ever so slightly to capture all pulses from the merging cylinders. Looks like a last resort tactic to me.

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