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F40 at DK Engineering video

Discussion in '288GTO/F40/F50/Enzo/LaFerrari/F80' started by F40 LeMans, May 17, 2012.

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  1. F40 LeMans

    F40 LeMans Formula Junior

    Nov 23, 2009
    826
    #1 F40 LeMans, May 17, 2012
    [ame]http://www.youtube.com/watch?v=4BQqS27IiJQ&feature=player_detailpage[/ame]
     
  2. joe sackey

    joe sackey Five Time F1 World Champ

    May 23, 2006
    57,525
    Southern California
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    Joe Sackey
    #2 joe sackey, May 17, 2012
  3. Gated

    Gated Formula 3

    Dec 21, 2009
    1,117
    #3 Gated, May 18, 2012
    Kinda strange that he doesn't know what the original MSRP was.

    Also, 515-hp on the dyno is significantly more than the 480-hp at the crank rating from the factory.

    Neat vid all the same. Just wish that at 6'5" I could bend myself into an F40...
     
  4. joe sackey

    joe sackey Five Time F1 World Champ

    May 23, 2006
    57,525
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    #4 joe sackey, May 18, 2012
    I am constantly amazed at what specialists dont know about the products they specialize in. Having said that, these guys have done a lot for the F40 model.
     
  5. Gated

    Gated Formula 3

    Dec 21, 2009
    1,117
    #5 Gated, May 18, 2012
    For sure. Who would be the US equivalent to them if any?
     
  6. Georgescott

    Georgescott Formula Junior

    Sep 28, 2009
    262
    #6 Georgescott, May 18, 2012
    The only reason why it posted 500+ hp is cause of the straight thought exhaust... Put the standard muffler on and that will reduce back to normal. Non fact, especially with turboed cars.
     
  7. F40 LeMans

    F40 LeMans Formula Junior

    Nov 23, 2009
    826
    #7 F40 LeMans, May 18, 2012
    James said me they find 505 hp on pre-cat cars for best result and 490 hp on cars fitted with cats. All this before the exhaust replacement. The muffler means something about 10/15 hp lost or gain.
     
  8. Gated

    Gated Formula 3

    Dec 21, 2009
    1,117
    #8 Gated, May 18, 2012
    But 515-hp at the wheels is more like 600 at the crank, no?

    480-hp (the factory rating) would be at the crank and therefore should be much less at the wheels due to the parasitic loss (tuning gears, drivetrain, wheels etc...)

    Unless Ferrari quote at-the-wheels power...
     
  9. F40 LeMans

    F40 LeMans Formula Junior

    Nov 23, 2009
    826
    #9 F40 LeMans, May 18, 2012
    These are estimated figures at the flywheels... modern dyno are able to calculate losses, even being not extremely accurate.
     
  10. Gated

    Gated Formula 3

    Dec 21, 2009
    1,117
    #10 Gated, May 18, 2012
    Thanks for the explanation.
     
  11. Mr. Francesco

    Mr. Francesco F1 Rookie

    Oct 10, 2010
    4,934
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    Mr. Francesco
    #11 Mr. Francesco, May 19, 2012
    Not bad, not bad. DK definitely comes across some amazing Ferraris.
     
  12. JimiC

    JimiC Rookie

    Sep 6, 2005
    45
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    James Cottingham
    #12 JimiC, May 30, 2012
    I was caught on the hop, not a natural presenter! But will improve with time!
    I have now checked, £193k GBP when new... but not for long, they haven't reached a £1 million again, yet.....

    P.S. our dyno does estimate the flywheel horsepower and is very conservative but F40's are consistently over the factory quoted figures, even with stock exhaust. Incredible, pessimistic Italians!!
     
  13. fast eddy

    fast eddy Formula Junior

    Apr 8, 2010
    282
    Utah
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    Ed Davenport
    #13 fast eddy, May 30, 2012
    Last edited: May 30, 2012
    No problem, I thought the presentation was very nice! I enjoyed it very much! Thanks for the follow up. I remember back in the day when the first new F40 was delivered locally. It immediatly exchanged hands for $1.2 million. I was there, and remember being mesmerized at how beautiful she looked in person! Much better than the magazine and press photos! One day I will take my turn at one of these incredible machines when the planets align for me! In the mean time the TR will have do!
     
  14. joe sackey

    joe sackey Five Time F1 World Champ

    May 23, 2006
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    #14 joe sackey, May 30, 2012
    I think you present just fine, just giving you are hard time :)

    I think the factory figures are pessimistic for a reason, but I agree they are conservative as has been debated elsewhere.
     
  15. F40 LeMans

    F40 LeMans Formula Junior

    Nov 23, 2009
    826
    #15 F40 LeMans, May 31, 2012
    Last edited: May 31, 2012
    I think "there's no universally accepted procedure regarding how manufacturers treat the intercooler on the engine dyno when they're developing the performance rating of a boosted engine.
    A conservative company would assume some worst-case heatsoak situation for the intercooler. This would result in lower output on the spec sheet because intercooler discharge temperatures in the real world would often/always be much more favorable for making power."

    This may be one of the reasons why F40 was claimed 478 bhp instead of over 500...checked
     
  16. 430 scuderia

    430 scuderia Guest

    Jun 10, 2008
    813
    #16 430 scuderia, May 31, 2012
    Nice discussion.. Thanks for sharing.!

    Best
     
  17. F40 LeMans

    F40 LeMans Formula Junior

    Nov 23, 2009
    826
    #17 F40 LeMans, May 31, 2012
    Last edited: May 31, 2012
    I forgot: over this, there is the reason of early cars and cars fitted with cats....obviously the early cars were the highest output. Remember that early engine was made when no restrictions of emissions were in Italy and the old "red" gasoline was diffused. This should not be strange, it's not strange for me, even if Ferrari has redesigned the management of the cat engine but it is anyway choked. Also, early engines were produced with slower building process and consequently a greater attention to production detail by the worker in action. If every engine build action was checked and double checked it will lead to a better unit.

    I think James can confirm this, having experiences like me, with both versions.
     
  18. joe sackey

    joe sackey Five Time F1 World Champ

    May 23, 2006
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    #18 joe sackey, May 31, 2012
    I agree with this.
     

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