Acceleration: F40, F50, Enzo, CGT & Veyron | Page 25 | FerrariChat

Acceleration: F40, F50, Enzo, CGT & Veyron

Discussion in '288GTO/F40/F50/Enzo/LaFerrari/F80' started by Bill S, Aug 30, 2009.

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  1. joe sackey

    joe sackey Five Time F1 World Champ

    May 23, 2006
    57,525
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    Joe Sackey
    Yes.

    I have heard from a Ferrari factory engineer that quite a few EU F40s delivered to VIP customers (clienti speciale) had blueprinted engines: Nigel Mansell, Nick Mason, Walter Wolf (he confirmed this to me personally), Michael Gabel etc. I haven't verified this myself, but both Mason and Gabel's cars produced quick times whenever tested...
     
  2. Bill S

    Bill S Formula 3

    Oct 2, 2004
    1,995
    Michael Gabel's F40 is the fast one tested in R&T magazine. Even Paul Frere could not understand why it was so fast wth cats.

    My F40 run was slightly downhill. I could not get 8.6 seconds and expecially not 8.3 seconds on a flat surface. It would be over 9 seconds which is what R&T and C&D magazines measured.

    I hope to find out what's going on here. But I think you're right Joe. These Euro F40s probably have more HP due to blueprinted engines or higher boost.
     
  3. joe sackey

    joe sackey Five Time F1 World Champ

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    #603 joe sackey, Jul 15, 2010
    Last edited: Jul 15, 2010
    I made some notes on all this a few years ago and my understanding is that Ferrari SpA were concerned that the cars they had carefully set up to meet USA DOT & EPA mandates referred to as "Tipo USA F40"s should not encounter emissions issues with the USA authorities, so it was mandated that all the USA cars were supplied to the USA in uniform mechanical configuration. There was no allowance for blueprinting, drop dears or any such 'enhancement' for USA VIP clients. This is confirmed to me by at least 2 USA clients who asked for special cars. "No possible" was the response.

    The EU market was another matter. It is my understanding that 'at least' the following Eu F40s had engines that were breathed upon ('motore potenziato' as confirmed by an F40 project engineer to me directly) and as such they were F40 hot-rods. Of course I have no proof, but at least its first-hand information without any basis for falsification whatsoever.
    - Nick Mason
    - Michael Gabel
    - Walter Wolf
    - Jean Blaton
    - Albert Uderzo
    - Giorgio Perfetti
    - Albert Obrist
    - Nigel Mansell
    And others besides...
    Remember, the F40 engine is incredibly easy to enhance, and just the blueprinting process during engine build alone will result in a more potent unit compared to an engine that did not receive this care.

    Just a small theory why you find certain Eu cars that have 'standout' performance.
     
  4. F40 LeMans

    F40 LeMans Formula Junior

    Nov 23, 2009
    826
    #604 F40 LeMans, Jul 16, 2010
    Last edited: Jul 16, 2010
    I don't know about. I only know that Ing. Materazzi and Dario was always saying that the 1st specification of that engine was always so close to 500 bhp when their engines were coming out to the dyno-test rooms (DIN corrected), and the Dario said my father that the car was good and fast when we delivered it from the factory in early Jenuary '90. Pay attention with it, he said..
    That car was always a lot fast in may comparing, even when I drove/own some cars like F50 or Diablo GT that were always quoted 60 - 130 mph 9.6s!

    So too, recently my friend own a very low mileage Euro F40 with cats and a special resech on the delivey history shown that car was delivered 474 bhp coming out the engines dyno room.

    Hope some of this helps for understanding.
    I don't know, I think some blueprinting process during the engine productions are surely possible, but some Euro cars with no cats are fast over any particular reasons, or particular engine demand by the customer. I repeat my car is not fast as the F50...it is much faster.
    It was delivered with plexi windows, Michelin tires and no cats engine, it was my personal chioce.
     
  5. MaxMcQueen

    MaxMcQueen Karting

    Jun 23, 2010
    124
    Full Name:
    Max
    Infact these aren't really tuned engines, these engines being build with this process of care, are just stock engines being only build in top end tolerances of production.
     
  6. joe sackey

    joe sackey Five Time F1 World Champ

    May 23, 2006
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    I think we are saying the same thing!
     
  7. joe sackey

    joe sackey Five Time F1 World Champ

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    Thanks for sharing this. It further confirms that some Eu cars got engines with special care in the build process.
     
  8. F40 LeMans

    F40 LeMans Formula Junior

    Nov 23, 2009
    826
    #608 F40 LeMans, Jul 18, 2010
    Last edited: Jul 18, 2010
    DK eng for a Euro no cats F40 engine

    http://www.dkeng.co.uk/sales/blue-chip--competition-cars/ferrari-f40-for-sale-(80786).aspx
    The 2936cc motor produces "approximately 500bhp" at 7000rpm with the help of two water-cooled IHI turbochargers running 1.1bar of boost - at 1202kg the F40 had a and still has a phenomenal power-to-weight ratio.
    The car was delivered very early on in the production run. Being one of the first, the specification of this car is widely regarded as the ultimate variation of a road F40 being a Non Cat with Non adjustable suspension with the addition of very rare but most sought after Sliding Perspex windows.


    Carobu for a US F40 engine

    http://www.carobu.com/html/f40.html
    This engine was tested as-is from the car, then upgraded with our LM turbo kit. This engine wasn’t particularly fresh, but was representative of an average F40 engine.
    Carobu Engineering dyno results for a stock, non-freshened F40 engine are "468 bhp" @ 7200 rpm and 390 lb-ft @ 4500 rpm utilizing the stock engine management system.



    At the fact I'm saying this a few pages ago. During the productions, engines are always made within the tolerances of 5%.
    The first specification no cats engine was always mentioned (as DK engineering is saying in the site) as wildest specification of the F40 engine, as Ing. Materazzi and Benuzzi were always saying yet. Probably the 1st spec of that engine were build with a special care as the ultimate variation of engine, achieving always the top end of tolerance of engine production on these units.
    So too, like Carobu is saying in their site, their US engines verified were lower in the data even being non-freshened, but representative of an average US F40 engine, because for these engines there was no allowance for blueprinting.

    Like Joe is saying, just a fact why you find certain Eu cars that have 'standout' performance.
     
  9. joe sackey

    joe sackey Five Time F1 World Champ

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    #609 joe sackey, Jul 18, 2010
    Last edited: Jul 18, 2010
    Some good points.

    If I may, 2 more points to make:

    1. You can blame US Government mandates for the standardization of USA F40 engines.
    2. The car that went to Carobu was known to me at least to me to be, er, slightly 'tired' before it got there, one of the reasons it was subjected to some performance upgrades. To hold its pre-upgrade performance stats as the benchmark for USA cars would be incorrect.
     
  10. F40 LeMans

    F40 LeMans Formula Junior

    Nov 23, 2009
    826
    #610 F40 LeMans, Jul 28, 2010
    Last edited by a moderator: Sep 7, 2017
    Yes Joe, you are right. Like Powerchip is saying, US engines are rated "475 bhp" in standard form.
    This engine was good for 424 lb-ft compared the tired engine that Carobu has tested at 468 bhp and 390 lb-ft.

    The other article, DK engeenering is saying that Euro engine produces "approximately 500 bhp" running 1.1bar (16.1 psi) of boost.
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  11. F40 LeMans

    F40 LeMans Formula Junior

    Nov 23, 2009
    826
    BillS, Joe Sackey,

    I have bought the last number of the UK EVO magazine with the factory Ferrari 458 Italia sent to the press in every part of the Europe.
    The car is very fast and it shown a very impressive 60-130 mph 7.8 seconds with two passengers.
     
  12. Bill S

    Bill S Formula 3

    Oct 2, 2004
    1,995
    That is very impressive. It's not an Enzo or CGT, but it still is very impressive.

    I'm looking forward to the US tests. Hopefully it's as fast!
     
  13. joe sackey

    joe sackey Five Time F1 World Champ

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    Holy.
     
  14. F40 LeMans

    F40 LeMans Formula Junior

    Nov 23, 2009
    826
    lol. One more time. Tell me wich CGT was tested with "two passengers" so fast here in Europe?

    And just to point out, this car was a factory car sent to the press. Was not a customers car. But these points still seems so strange.
     
  15. F40 LeMans

    F40 LeMans Formula Junior

    Nov 23, 2009
    826
    #615 F40 LeMans, Aug 27, 2010
    Last edited: Aug 27, 2010
    Yes, this car is just a rapresentative example of factory car. And being a car sent for the press there are really good reasons to think it could be a good car in its tolerance of production. A friend of mine being so close to the factory said me that some engines built for the factory 458 come out so close to 600 hp.

    This is the reason why sometimes factory cars sent to the press are always a bit faster than the customer cars. And now, I'm coming back to the 5% in power of engine production.
     
  16. F40 LeMans

    F40 LeMans Formula Junior

    Nov 23, 2009
    826
    #616 F40 LeMans, Aug 27, 2010
    Last edited by a moderator: Sep 7, 2017
    It's 60-130 mph 7.8s or............ 60-128.8 mph 8s looking the 1/4 mile data??????lol

    7.8s is impressive, but 8s to 128.8 mph seems to be over 8.2s from 60 to 130 figure.
    This is funny!
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  17. F40 LeMans

    F40 LeMans Formula Junior

    Nov 23, 2009
    826
    #617 F40 LeMans, Aug 30, 2010
    Last edited: Aug 30, 2010
    http://img717.imageshack.us/img717/6799/90001.jpg

    Infact the customer 458 UK registerd sent for the Autocar test was almost .9s slower than the factory car tested by Evo in 60-150 mph figure.

    The 60-130 mph could be almost 1/2 second slower than the car tested by Evo. I'm coming back to the 5% in power of engine production again.

    This is the point because sometimes customers cars are a bit slower than the factory cars.
     
  18. joe sackey

    joe sackey Five Time F1 World Champ

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    This is very interesting. Since the old days, it seems this tradition continues!
     
  19. F40 LeMans

    F40 LeMans Formula Junior

    Nov 23, 2009
    826
    Yes, and the only reason why a huge difference (double difference) from the factory Carrera GT tested by C&D with only the driver and the customer CGT tested by Evo with two passengers.

    Looking the average of the data we have of 599GTB, CGT, Scuderia... there is just a half second ( 60-130mph) for the passenger weight difference.

    Looking the CGT, 458 Italia data,... could be 1 second (60-150mph) from factory car to customer car behind the 5% of engine tolerance of production.

    So, we must pay attention in the value of the test data, and sometimes comparing factory car data could not to be the same as comparing to customer cars.
     
  20. joe sackey

    joe sackey Five Time F1 World Champ

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    If production cars alone have an engine output variation of 5%, the difference between a well-tuned "factory" car and a lower output production customer car is even more than that!

    Very interesting, and one really ought to know the production output of the engine if the performance results are to be definitive...
     
  21. F40 LeMans

    F40 LeMans Formula Junior

    Nov 23, 2009
    826
    #621 F40 LeMans, Sep 1, 2010
    Last edited: Sep 1, 2010
    I think the two important things to know are: behind registration plates is possible to know or guess about factory cars or customer cars. And behind this awareness of, is possible to guess when factory cars are particulary fast, to know that we are talking about 5% or more about power output of their engines. Then, when a customer car is fast we are talking about the value could be within the tolerance. This could be though for a max of 4% or little more about power output...

    I have always thougt that the CGT tested by C&D was a 640 hp car, when Mason's F40, even the 2nd article, explain well that the engine keep nearly 500 bhp.
    The factory Enzo that all the world magazines had tested was come out engine test room with 687 and today a factory 458 seems it could be so close to 600 hp... and so on.
     
  22. Bill S

    Bill S Formula 3

    Oct 2, 2004
    1,995
    My personal car seem to match the CGT sent by Porsche for the US test.

    I'll try to do a 60-130 with two people and a full tank of gas. I'm guessing it will be under 8 seconds.
     
  23. F40 LeMans

    F40 LeMans Formula Junior

    Nov 23, 2009
    826
    #623 F40 LeMans, Sep 1, 2010
    Last edited: Sep 1, 2010
    Hi Bill,
    your car, you are always said that was 7.7s, on flat, with driver and 1/4 of tank gas (C/D was 7.3s)... with 160 lbs more the passenger and 3/4 of gas, I think should be difficult to maintain the high 7 seconds. Just for weight added by the passenger it could be like a half second more. Remember the "factory" CGT tested with two passengers was 8.1s. The customer CGT UK registred was 8.5s..
     
  24. Bill S

    Bill S Formula 3

    Oct 2, 2004
    1,995
    Can I try 100 R+M/2 gas? I tested the CGT with 91 R+M/2 which is not very good. The car requires 93.
     
  25. F40 LeMans

    F40 LeMans Formula Junior

    Nov 23, 2009
    826
    Our modern European tests were "generally" made with our high octane fuels like RON 98 (just sometimes Italian magazines with RON 100) that they are the same, after the conversion, of your 93 AKI (and 95 AKI).
    Our standard RON 95, is the same as your 91 AKI. Our old "red gas" was the same octane as RON 98 or your 93 AKI.
    We have not 105 RON on the pumps, so is not right to campare European tests and runs with your 100 AKI fuels.

    With higher octane rating fuels even our old and modern tests will became bit faster :)
     

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