Cylinder Head Shootout

Discussion in 'House of Power Racing' started by HoP Racing, Nov 15, 2007.

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  1. HighHorseman

    HighHorseman Performance Specialist

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    Andy, what's the wager?

    What dress size do you wear?

    Joshua, HHP
     
  2. sgtstanko

    sgtstanko Want to go FASTER!!!

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    BRUTAL!!!!!
     
  3. HoP Racing

    HoP Racing Mad Scientist

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    Yes, the HHP heads where ran this morning, and the Mopar Heads will be installed this Thursday for the final set. So far three different sets have ran. The HHP heads we did try some timing adjustments and it rattled when we added +1 degree to 25 total. We saw the spot of the rattle via the DW and the Dyno and the horsepower dropped so we are leaving the tune as is. Expect a full detailed report on this shootout as soon as the Mopar heads have had their testing. Thankyou
     
  4. HoP Racing

    HoP Racing Mad Scientist

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    I don't think Andy is the one who needs the dress :thumb2:
     
  5. HighHorseman

    HighHorseman Performance Specialist

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    I was just wondering. Jeez

    I'm thinking he's a 6.
     
  6. PPPAndy

    PPPAndy New Member

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    Thats hilarious...... I prefer evening gowns Josh. Now that I think about it, I think you were posting this while I was on the phone with Bruce last night, lol.
     
  7. SanDiegoSRT8

    SanDiegoSRT8 Hotbuns69

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    Evening Gowns !!??:huh:

    Is this why you change the tone of your voice when I talk to you after hours, Andy ?? Here I am thinking that you are just tired. Little did I know that you were trying to sound sexy on the phone with me. :supergay:
     
  8. PPPAndy

    PPPAndy New Member

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    Thats too funny.
     
  9. 6.1luvr

    6.1luvr Baptized by Fire

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    Thank You for the time, effort & expense....this test could not of come at a better time since I am currently in the market for heads & cam.
    :thanks:
     
  10. Fast56k

    Fast56k New Member

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    I want to thank Josh for doing this. He deserves major kudos. He is certainly doing a lot of work conducting this challenge. Thanks Josh.

    C.
     
  11. Hemiguy

    Hemiguy Internet Expert

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    This is a completely Bias Test which will prove nothing without tuning each head indiviualy. PPP will make the most power, not becasue they have the best heads on the market, but because they Advertise their product the most and have prefered tuning. Do we all think its a coincidence that they get the prefered tuning. We are not stupid. Go back to the drawing board guys and make this a fair test.

    Sorry you waisted your money.

    The results are not out yet and we all know PPP will be on top no matter what. Duh.............

    John
     
    Last edited: Feb 6, 2008
  12. sdcarguy

    sdcarguy A bit off

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    Well hemiguy's first post was well stated that its hard to argue with him...but anyways some of us arent worried about peak numbers...i personaly would rather see a fatter low end from say 2300-5800 or so...let us not forget these are 4300 pound bricks we are pushing and TQ is king!
     
  13. sgtstanko

    sgtstanko Want to go FASTER!!!

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    Besides that he is from SoCal I fully agree! :pleasantry: :thumb2:
     
  14. PPPAndy

    PPPAndy New Member

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    I disagree with the statements obviously. The HHP heads did receive a tuning adjustment, and it was stated that the Mopar heads would also receive a different tune. We sent a set of off-the-shelf heads while others had the pleasure of knowing they were going to a shoot-out. I really am offended that there are those of you that think we had something to do with this shootout and that we are getting preferential treatment. I applaud HOP for doing what they are doing, but we are absolutely not getting any preferential treatment at all.
     
  15. HoP Racing

    HoP Racing Mad Scientist

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    Gonna keep this as simple as possible for the newbie here with 1 post..... Tuning individually for each set of heads is going to accomplish what?.......Exactly. Each set of heads again flow within 10% of each other or less. If one set of heads run well at 24 degrees total then the other set should run just as well if not better. We did for shits and giggles try and tune HHP's heads we data logged the run at 24 degrees total, added a degree ran it at 25 when I knew it would tickle the sensors (but for the forums benefit and people like you thinking you know more than someone who owns a dyno) we got 2.5 degrees of knock retard. Hmmm what did this do..........lost horsepower buddy. Again your "tuning" is done at WOT and is called OL Fuel. Meaning there are no interfering parameters you have wot fuel and wot spark. Leaving the variable of tunning out, and trust me it's a really good tune with hours of work in it, if she has 22-24 degrees of total being called at WOT through out the rpm range of 2k-6.5k rpm's and the afr is 12.5:1 the heads should perform as they where intended to. You think that I should run 30 total do you?

    So I'm going to let some of you in on a little teaser piece of information.

    1) One of the vendors had massive failures meaning, exhaust retainers where completely ruined from making contact with the rocker arms, valve stem tips where worn almost to the point of touching the keepers and ruined the hard facing off the rockers.

    2) Another vendor had every exhaust retainer hitting the rocker arms as the other vendor did, and he also knew that there was this possibility of happening. This problem I believe has a direct impact to his dyno reports.

    3) The other vendor no problem what so ever with their heads. Good work fellas you know who you are :)

    4) The other vendor we will know shortly.

    So you understand this much, this test has had it's problems. I'll tell you now that changing the tune to fix the problem of rockers hitting retainers and possibly causing valve flutter will never make it right. That's a flaw with the cylinder head. A tune will not fix trashed valve stems. So before you start opening your mouth about something you know nothing about, think about what I know because I'm the one here with witnesses performing this test. OOh and btw those of you with excessive valve train noise, might want to be pulling off your valve covers and taking a little peak.
     
    Last edited: Feb 6, 2008
  16. JMatt

    JMatt Platinum Supporting Member

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    Ehhh. People always try to knock the king. I think it's telling that people assume PPP will finish on top before any results are published.

    Maybe next time we can have one person collect a bunch of heads, and label them "A" "B" "C" "D" and send them to someone else to conduct the test. People would still complain.

    Ohh - and how much advertising do you do with HoP anyway?
     
  17. dry lakes wheel man

    dry lakes wheel man Full Access Member

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    I understand that this test is going to be done using an HoP 392 strocker with HHP camshaft. I don't understand what this test is suppose to prove. If your doing a cylinder head shoot out why not use a flow bench? I would think that HHP has matched their cam and cylinder head package for optimun performance ( I would). Did the other vendors have access to the same? Just asking!!
     
  18. HoP Racing

    HoP Racing Mad Scientist

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    Read back a few pages,.....all the heads where put on a flow bench first.
     
  19. PPPAndy

    PPPAndy New Member

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    No we did not know anything about the cam. My heads were sent before the cam was even selected, but they did send the heads to a flow-bench for testing as well.
     
  20. SOUTHERNHOTROD

    SOUTHERNHOTROD Supporting Vendor

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    We have not started with 5.7L's yet so I have to ask. What is the retainer to rocker contact caused by? Retainers too big? Wrong design?
     
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