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  1. #26
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    does it have headers?
    Some people live long, meaningful lives.

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    Click here to enlarge

  2. #27
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    Click here to enlarge Originally Posted by fstop7 Click here to enlarge
    No offense but I was expecting a record at a track, not a dyno record.
    lmao .. me too hahahah

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    Click here to enlarge Originally Posted by DBFIU Click here to enlarge
    does it have headers?
    there are no headers available, so no.

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    i thgouht gintani has headers,

    and other tried, but noones been able to show gains with them?

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    the stock headers flow pretty well and it not worth the 4 or 5 grand for a little gain in hp.
    F10 M5 : ??????
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  6. #31
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    Click here to enlarge Originally Posted by LostMarine Click here to enlarge
    i thgouht gintani has headers,

    and other tried, but noones been able to show gains with them?
    One off. I think they are on sticky's car only. Too big primaries for N/A car too.

  7. #32
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    RDsport makes headers but I think they only gain like 5-7hp from them.
    Click here to enlarge

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    Click here to enlarge Originally Posted by RD4LLe92m3 Click here to enlarge
    RDsport makes headers but I think they only gain like 5-7hp from them.
    Click here to enlarge Originally Posted by akh23456 Click here to enlarge
    the stock headers flow pretty well and it not worth the 4 or 5 grand for a little gain in hp.

    Click here to enlarge Originally Posted by BrenM3 Click here to enlarge
    One off. I think they are on sticky's car only. Too big primaries for N/A car too.

    yea, thats what i thought, sucks though. and that 5-7 is probably just done with a huge cooldown and showing best vs worst run, maybe octane added as well.


    OT, but AK- I think im ready for that comparo/rematch on moderate boost Click here to enlarge

  9. #34
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    Click here to enlarge Originally Posted by LostMarine Click here to enlarge
    i thgouht gintani has headers,

    and other tried, but noones been able to show gains with them?
    Just for forced induction applications.

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    Click here to enlarge Originally Posted by Sticky Click here to enlarge
    Just for forced induction applications.
    that makes sense. id im assuming there are no before/after on a s/c s65 with just the headers?

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    Click here to enlarge Originally Posted by LostMarine Click here to enlarge
    that makes sense. id im assuming there are no before/after on a s/c s65 with just the headers?
    Nope.

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    Stock headers are nice but they are setup more like 'middies' (mid lengths). Which is much better then the log style boot manifold the AMG cars have. Somewhere in between those and full LT's. I am assuming a true Tri-Y long tube design similar the Gintani C63 headers with properly sized primaries would make a bit more power, and sound great to boot. No one has ventured here yet. PG's RD sport designed headers seemed to have a big low end droop too, similar to the akra setups on the dyno as well.

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    There has been some extensive work carried out on the S65 headers but the gains are so small or limited to a certain rpm range that they really would never appeal to the end user. What's the point in gaining 5hp in the midrange!

    What however hasn't been explored is the combination of vanos tuning with these different designs. It can be the case sometimes that a particular header design is actually going to give scope to increased power but you would need to alter the calibration to suit. I should say that the same calibration would probably not do any favours with the stock headers. It's a seriously heavy development process to go through!

    Even still, the gains will most likely never be huge and the costs would not exactly be low.

    Better to stick to the many X Pipe options which all seem to make the same power increases (leaving out the never ending BS marketing!).

  14. #39
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    Oh sorry... how rude of me!

    Congratulations on getting the highest figures on a dyno.

    Would be interested to see how well it does against a few stock cars on a dynojet where the stock cars make the average figures of around say 340 (?).

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    i agree with evolve, of course...

    the long tube headers would probably need to be tuned for because the exhaust on an NA car is such a sensitive part of the power output of the engine... 5 hp is just not worth 6 grand.

    I have seen the S65 headers and they are very well designed for a stock car, at first I thought they were aftermarket when in fact they were stock. That design merits a lot of the reason why BMW is able to squeeze over 100 hp per liter out of a small V8. In any case, I think I had seen somewhere they make headers for the M5/M6 S85s
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  16. #41
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    Click here to enlarge Originally Posted by DBFIU Click here to enlarge
    In any case, I think I had seen somewhere they make headers for the M5/M6 S85s
    The S85 gets a large part of its gain I believe due to getting rid of cats in the header. RPI's headers for example are just a modified stock header.

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    Click here to enlarge Originally Posted by evolve Click here to enlarge
    Oh sorry... how rude of me!

    Congratulations on getting the highest figures on a dyno.

    Would be interested to see how well it does against a few stock cars on a dynojet where the stock cars make the average figures of around say 340 (?).
    This car, like many other baselined at 335-340whp STOCK on this dyno.

    Here's a stock overlay from my personal car to bolt on tuned. Same dyno @ 1.0cf.

    Click here to enlarge

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    Amazing #s but I would pay to see one of these over 400whp cars run on a Dyno Jet and actually run on a 1/4 or 60-130 to see if these dyno #s mean anything on the road. I don't mean to take away or put then down but I have become distrustful in dynos and don't believe they mean anything in the real world anymore. But just a tool for tuning. I had started a thread about it and even MHP recently started a thread about it
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    Click here to enlarge Originally Posted by DD GT3 RD Click here to enlarge
    Amazing #s but I would pay to see one of these over 400whp cars run on a Dyno Jet and actually run on a 1/4 or 60-130 to see if these dyno #s mean anything on the road. I don't mean to take away or put then down but I have become distrustful in dynos and don't believe they mean anything in the real world anymore. But just a tool for tuning. I had started a thread about it and even MHP recently started a thread about it
    +1

  20. #45
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    Click here to enlarge Originally Posted by leo985i Click here to enlarge
    +1
    +2

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    Click here to enlarge Originally Posted by leo985i Click here to enlarge
    +1
    +2

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    Damn man!

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    Click here to enlarge Originally Posted by DD GT3 RD Click here to enlarge
    Amazing #s but I would pay to see one of these over 400whp cars run on a Dyno Jet and actually run on a 1/4 or 60-130 to see if these dyno #s mean anything on the road. I don't mean to take away or put then down but I have become distrustful in dynos and don't believe they mean anything in the real world anymore. But just a tool for tuning. I had started a thread about it and even MHP recently started a thread about it
    Its just a tool, a tool that we have over (25) 335-340whp runs on stock M3's. and 400+ on multiple other tuned/bolt on M3 after. It's a hub dyno - no belt strap tricks no nothing no correction factor - raw inputted gear ratio. Lock n Load. These results have been independently verified and runfiles are available for D/L by your favorite guy, PG - for foulplay in which he saw none.

    In fact: Check out this akra exhaust on a popular M3 tune vs. akra exhaust + our custom tuned M3 same dyno same setting...

    Click here to enlarge
    Last edited by BrenM3; 07-15-2011 at 04:38 PM.

  24. #49
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    ^ but thats my point, they make power on a dyno lets see if it makes power on the road...hence actualy time figures. Im not putting the figure down in anyway, but im just saying If i was a tuner and I was sure my cars made power, I would prove it on the road, sell my tunes by having factual #'s. I.E. - Hey a stock car did a 60-130 in 12.8 with the tune it ran a 12.6....with fbo it ran 12.0 then with the tune 11.8.

    If these cars made power on the dyno but actually did not improve at all on the road what would be the point?
    Current:
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    Wsir - 1:28:9
    Buttonwillow C13 - 1:54:1

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    Click here to enlarge Originally Posted by fstop7 Click here to enlarge
    No offense but I was expecting a record at a track, not a dyno record.
    Click here to enlarge Originally Posted by Kautiongsr Click here to enlarge
    lmao .. me too hahahah
    Me, three.
    Great numbers, but for me (personally), at LEAST some supportive vbox data or real times would be needed here to get my attention.

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