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  1. #26
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    This gives me something to set my goals for when doing the E28.

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    This was done in 5th I think which is 1:1, 3.23 rear and a.... estimated 24.9" rear tire (street tire). I am not sure if it was this run or the following but one of them "exceeded maximum MPH". The run hit the limiter (hard cut, bang). I THINK 120 mph is around 5200 RPM on this pull.

  3. #28
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    Very nice number, especially for pump gas. Congrats.

  4. #29
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    Click here to enlarge Originally Posted by 5mall5nail5 Click here to enlarge
    This was done in 5th I think which is 1:1, 3.23 rear and a.... estimated 24.9" rear tire (street tire). I am not sure if it was this run or the following but one of them "exceeded maximum MPH". The run hit the limiter (hard cut, bang). I THINK 120 mph is around 5200 RPM on this pull.
    Awesome I'll draw up something when I'm free.

    Boost?

  5. #30
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    Thought i would post what you wrote on bfc.

    Click here to enlarge Originally Posted by 5mallSnail5
    93 octane pump fuel, 50:50 water meth, stock non vanos head, stock non vanos cams. Power feels more to the left on the road, but I think its a combination of the dyno not loading like the street and of course my boost control issue w/ the creeping wastegate.

    This was at 28 - 29 psig according to logs and was around 11.0 - 11.3 AFR. Very soft timing. We cranked it to 34 psi and it felt strong and then POW, clutch let go and rev limiter slammed.

  6. #31
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    Click here to enlarge Originally Posted by 5mall5nail5 Click here to enlarge
    Edit: I am rusty on HPF power but since you mentioned it, I think its making more than their stage 2.5 on race + meth
    Just notice your edit but you are a bit short of a 2.5 race + meth, at least the recent versions like what Mspired is running. Also, they seem to be making more power/torque per pound of boost.
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  7. #32
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    Click here to enlarge Originally Posted by TaZaM3 Click here to enlarge
    Thought i would post what you wrote on bfc.
    Is this correct? He writes 28-29 psig which would be ~43 psi but then writes they cranked it to 34 psi.

    I may be missing something so what was the boost in PSI ?
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  8. #33
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    Here is a vid of the car being dyno'd:



    Red car is an S52 3.2L with GT3582R @ 26 psi, S52 head w/ Bavarian Solutions billet cams on VP Race fuel + water/meth

    Green car is an M50 2.8L with PT76GTS @ 28 - 29 psi, stock M50 non VANOS head and cams on 93 octane pump fuel + water/meth
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  9. #34
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    Ok, so it seems 28-29 psi is what the boost is so just a bit less power than a HPF Stage 2.5 on Meth + Race even at higher boost.

    Very interesting, here is a pic of the car as well, beautiful:

    Click here to enlarge
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  10. #35
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    Sticky, less powerful?

    This is the dyno on their website:

    Click here to enlarge

    Click here to enlarge


    $#@! now that I view the video again of the 685 run, it didn't hit the limiter, was in 5th gear. That means this thing would have made more horsepower. Argh. Whichever.
    that's what I am going by, their advertised numbers - not sure which you are looking at.

  11. #36
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    Click here to enlarge Originally Posted by Sticky Click here to enlarge
    Is this correct? He writes 28-29 psig which would be ~43 psi but then writes they cranked it to 34 psi.

    I may be missing something so what was the boost in PSI ?
    PSIg means relative to atmosphere/environment. So since on earth we are under 1 atmosphere of pressure, gauges don't read 14 psi neutrally. They read 0 psi. This is 28 - 29 PSIg (from 0 psi). If you want to get technical, an NA car at WOT is at 14.5 psi, since there's 1 atmosphere of pressure working on anything and everything... which is why when you tune in kilopascals boost starts after 100 kpa, with 100 kpa = 1 atmosphere... follow? If I said 28-29 PSIa, it'd only be 14.5 PSI because the first 100kpa/bar/atmosphere/14.5 psi would be from a vacuum.

    The ECU showed 299 kPA which is 29 psi because MAP sensors do measure the vacuum (necessary to tune). So 0 - 99 kPA is vacuum 100 kPA is 1 ATM, and everything above is boost... so I was running 299 kPA absolute, or 199 kPA of pressure, 29 psi.

    This is 28-29 psi, just like anyone else would measure boost.

  12. #37
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    Whats important is that your car is running and driving.
    A simple luxury. Click here to enlarge

    It is powerful ... on top of it being a running car.
    Click here to enlarge
    www
    milkt org

  13. #38
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    Click here to enlarge Originally Posted by 5mall5nail5 Click here to enlarge
    Sticky, less powerful?

    This is the dyno on their website:

    http://www.horsepowerfreaks.com/imag...F/Stage2-5.gif

    http://jonkensy.com/gallery/albums/u...4141231231.jpg


    $#@! now that I view the video again of the 685 run, it didn't hit the limiter, was in 5th gear. That means this thing would have made more horsepower. Argh. Whichever.
    that's what I am going by, their advertised numbers - not sure which you are looking at.
    Yes, I realize that is the dyno on their site which is why I stated their most recent Stage 2.5's Click here to enlarge Like Mspired's: http://www.bimmerboost.com/showthrea...ions-Dyno-Pics

    Their Stage 3's and Stage 4's are also now more powerful than what they show on their site, those dynos are outdated.
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  14. #39
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    Click here to enlarge Originally Posted by 5mall5nail5 Click here to enlarge
    PSIg means relative to atmosphere/environment. So since on earth we are under 1 atmosphere of pressure, gauges don't read 14 psi neutrally. They read 0 psi. This is 28 - 29 PSIg (from 0 psi). If you want to get technical, an NA car at WOT is at 14.5 psi, since there's 1 atmosphere of pressure working on anything and everything... which is why when you tune in kilopascals boost starts after 100 kpa, with 100 kpa = 1 atmosphere... follow? If I said 28-29 PSIa, it'd only be 14.5 PSI because the first 100kpa/bar/atmosphere/14.5 psi would be from a vacuum.

    The ECU showed 299 kPA which is 29 psi because MAP sensors do measure the vacuum (necessary to tune). So 0 - 99 kPA is vacuum 100 kPA is 1 ATM, and everything above is boost... so I was running 299 kPA absolute, or 199 kPA of pressure, 29 psi.

    This is 28-29 psi, just like anyone else would measure boost.
    Ok, but isn't the conversion from psig to psi mathematically what I stated? I guess I'm just missing something, I never use psig or psia.

    30 psig on a tire pressure gauge is much more psi in actuality as I understand it.
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  15. #40
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    2 out of 2 members liked this post. Yes Reputation No
    You guys do realize this dyno is STD comparing it to a SAE HPF dyno? Also don't forget the turbo size difference.

    What was the correction factor on this dyno?

  16. #41
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    Click here to enlarge Originally Posted by TaZaM3 Click here to enlarge
    You guys do realize this dyno is STD comparing it to a SAE HPF dyno? Also don't forget the turbo size difference.
    Oops, oh ya, good point.
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  17. #42
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    I'm gonna chart it with rpm and TQ when I have some time. From a quick calculation doesn't look like he redlined.

    What is the redline on this motor?

  18. #43
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    My car is a recent hpf 2.5. Dyno is floating around somewhere. The newer kits are making a little more power.

  19. #44
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    Click here to enlarge Originally Posted by TaZaM3 Click here to enlarge
    I'm gonna chart it with rpm and TQ when I have some time. From a quick calculation doesn't look like he redlined.

    What is the redline on this motor?
    This pull didn't redline Click here to enlarge You would hear it, I have a hard limiter at 7100. Soft limiter is 7050 and hard at 7100. Also, if I had redlined the power squiggles at the end as I am sure you've seen before. This thing is actually still climbing. Undoubtedly it would have done 700 RWHP I think. Oh well, next time.

  20. #45
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    1 out of 1 members liked this post. Yes Reputation No
    Click here to enlarge Originally Posted by Sticky Click here to enlarge
    Yes, I realize that is the dyno on their site which is why I stated their most recent Stage 2.5's Click here to enlarge Like Mspired's: http://www.bimmerboost.com/showthrea...ions-Dyno-Pics

    Their Stage 3's and Stage 4's are also now more powerful than what they show on their site, those dynos are outdated.
    Ok well, I see he made 695 on race + 100% meth. I think my numbers are downright ridiculous being on 93 and 50% methanol (not 50% in tank, 50:50 water/meth).

    Click here to enlarge Originally Posted by Sticky Click here to enlarge
    Ok, but isn't the conversion from psig to psi mathematically what I stated? I guess I'm just missing something, I never use psig or psia.

    30 psig on a tire pressure gauge is much more psi in actuality as I understand it.
    Everything on earth is under 14.5 psi of pressure at sea level. So yes, if were were in space between the earth and the moon a tire with 30 psi of air on the earth has 45 psi of air in space. But, since everything is at 1 atmosphere on earth (within reason, high altitude is at less) 29 psi of pressure in an intake manifold is the same unit of measure as 30 psi in a tire. Its not 45 psi or whatever.

  21. #46
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    Click here to enlarge Originally Posted by 5mall5nail5 Click here to enlarge
    Ok well, I see he made 695 on race + 100% meth. I think my numbers are downright ridiculous being on 93 and 50% methanol (not 50% in tank, 50:50 water/meth).
    I agree.
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  22. #47
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    Sorry Sticky, I rushed to type that. In space, with no atmosphere, its 0 kPA vacuum. So a 30 psi tire would be 15 psi in space. The earth at seal level has 1 atm (14.5 psi) of pressure on it because of atmospheric pressure.

  23. #48
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    Click here to enlarge Originally Posted by 5mall5nail5 Click here to enlarge
    Sorry Sticky, I rushed to type that. In space, with no atmosphere, its 0 kPA vacuum. So a 30 psi tire would be 15 psi in space. The earth at seal level has 1 atm (14.5 psi) of pressure on it because of atmospheric pressure.
    Makes perfect sense. Just to be precise, atmospheric, 1 bar, is 14.7 right?
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  24. #49
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    Nah - technically 1 bar is 14.5 psi, 1 atm is 1.01 bar or something lol.

    http://en.wikipedia.org/wiki/Bar_%28unit%29

    You can read until your head is dizzy.

  25. #50
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    Click here to enlarge Originally Posted by 5mall5nail5 Click here to enlarge
    Nah - technically 1 bar is 14.5 psi, 1 atm is 1.01 bar or something lol.

    http://en.wikipedia.org/wiki/Bar_%28unit%29

    You can read until your head is dizzy.
    Whatever, 14.5 is good enough, lol.
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