575 GTO | Page 4 | FerrariChat

575 GTO

Discussion in '365 GT4 2+2/400/412' started by 246tasman, Jun 25, 2007.

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  1. 95spiderman

    95spiderman F1 World Champ
    Silver Subscribed

    Nov 1, 2003
    15,057
    ny
    never saw this before but subscribed now. very nice
     
  2. WILLIAM H

    WILLIAM H Three Time F1 World Champ

    Nov 1, 2003
    35,532
    Victory Circle
    Full Name:
    HUBBSTER
    Sick ride :)

    I'm restoring my 68 Vette roadster w a new frame & I'm dropping in an LS7 & 6 speed trans, Large Brembo brakes

    We should race when my Vettes done :)
     
  3. 246tasman

    246tasman Formula 3

    Jun 21, 2007
    1,441
    UK
    Full Name:
    Will Tomkins
    It's nearly ready at Moto Technique after an accident bodywork repair (insurance job).

    Next outing will be the Pomeroy Trophy again at Silverstone around late Feb. We are currently developing some prototype 18inch alloy rim wire wheels to take the Pirelli slicks & wets to do some races in the FOC Pirelli series next year. If they look good on the car I may stick with 18in wheels for the road too and then we may well fit larger diameter brakes.
     
  4. DinoSR8LM

    DinoSR8LM Karting

    Dec 3, 2010
    166
    #79 DinoSR8LM, Dec 11, 2010
    Last edited: Dec 11, 2010
    Will you're a man after my own heart, that was one labor of love. Idealists are extremists now aren't they. I think the 18" Road and Track wheels are a good idea. I have taken the liberty of converting the race sizes to street sizes for you: 345/35/18 and they fit on an 18x11 http://www.tirerack.com/tires/tires.jsp?tireMake=Hoosier&tireModel=R6&partnum=3435ZR8R6&vehicleSearch=false&fromCompare1=yes&tab=Specs There's also a list of specs there to play with for the front tires. The 18x11 will also fit the 285/40/18 in the best tested street tire http://www.tirerack.com/tires/tires.jsp?tireMake=Continental&tireModel=ExtremeContact+DW&partnum=84YR8ECDW&vehicleSearch=false&fromCompare1=yes&tab=Specs
     
  5. DinoSR8LM

    DinoSR8LM Karting

    Dec 3, 2010
    166
    Will it have side pipes?
     
  6. 246tasman

    246tasman Formula 3

    Jun 21, 2007
    1,441
    UK
    Full Name:
    Will Tomkins
    Thanks for this. The car currently has the Daytona size 9 x 15 rears & 7.5 x 15 fronts (Cromadore cast, Borrani or Turrino alloy wires). I propose to build 8 x 18 fronts and think I may be able to fit up to 10 x 18 rears, the extra inch here being gained on the inner edge which may clear the lower wishbone link on to the hub due to the bigger diameter. Wider than that I think will foul on the upper chassis section.
    The wheels will be built to a new Patent design which I'm working on right now and following track testing will be marketed in a range of sizes as part of the Turrino brand.
     
  7. DinoSR8LM

    DinoSR8LM Karting

    Dec 3, 2010
    166
    #82 DinoSR8LM, Dec 12, 2010
    Last edited: Dec 12, 2010
    Glad to help. You don't have to guess when doing this like most builders do. You just have to jack up the car on one corner with the suspension fully compressed and take measurements wider and taller with the wheel turned to the fullest both ways using a small mm ruler. You also have to consider the offset. the distance from the center line to the wheel mount. You have an opportunity to maximize tire size with a custom wheel. HRE is a company very experienced with custom wheels. From the pictures I see that there is plenty of fender gap for a taller tire which is better than going wider, to a point. 600hp on an 18x10 probably won't be the most enjoyable at the track, even on a slick. For comparisons sake the 600hp GT1 GT-R with about the same weight has 18x13s at all 4 corners and 28 inch tall tires. Personally I would modify the fenders and suspension after the ideal tires are on. I imagine you would also need to upgrade the brakes since the 15s don't allow for the biggest brakes unless you're using NASCAR brakes. You would also have a much better tire selection for road and track in 19 inch. 345/35/19 rear and 325/30/19 front would be ideal http://www.tirerack.com/tires/TireSearchResults.jsp?width=345%2F&ratio=35&diameter=19&x=21&y=10 You'll actually have a better selection of slicks in 15" than 18" because the lower the profile the narrower the tire to wheel ratio. For example you can fit a 325/50 on the 15x9 but only a 295/35/18 on an 18x10 which is basically a front tire in FIA GT rear engine cars.
     
  8. Stefan_009

    Stefan_009 Formula Junior

    Aug 10, 2008
    994
    Boston area, MA
    Full Name:
    Stefan
    Any videos of this car? I wanna hear the exhaust note!
     
  9. 246tasman

    246tasman Formula 3

    Jun 21, 2007
    1,441
    UK
    Full Name:
    Will Tomkins
    Not yet, but I plan to film some acceleration runs with GPS speed measurement (60-130, 60 -150 etc) soon, and these will come with full sound.
     
  10. 246tasman

    246tasman Formula 3

    Jun 21, 2007
    1,441
    UK
    Full Name:
    Will Tomkins
    #85 246tasman, Dec 13, 2010
    Last edited: Dec 13, 2010
    Maybe you've misunderstood me. My company manufactures alloy rim (and other) wire wheels and there's no guesswork involved. We just haven't yet checked the clearance on the inside of the inner edge which we will do by mounting a dummy rim. There's no question of altering the wheel arches as I have as much flare as I want for the car to look right.
    Obviously I have to use Pirelli for the FOC series and their smallest diameter slicks in the sort of width I want are 18in, and I don't want to go bigger diameter because of the looks, gearing & wheel arch clearance.
    The car is great on the track already with the wheels & tyres it has now.
    Do you (or anybody) know how the PZero Corsa System road legal tyres you've linked to compare to the Racing wets in wet weather lap times? If they're not too much slower I could perhaps use these as dual purpose and save myself making a third set of wheels
     
  11. DinoSR8LM

    DinoSR8LM Karting

    Dec 3, 2010
    166
    I know that the Corsa are original equipment on the Enzo FXX, Gallardo Superleggara and Porsche GT3 RS and were engineered for lapping the North Loop. Here are some positive reviews, click on the reviews tab: http://www.tirerack.com/tires/tires.jsp?tireMake=Pirelli&tireModel=PZero+Corsa+System
     
  12. 246tasman

    246tasman Formula 3

    Jun 21, 2007
    1,441
    UK
    Full Name:
    Will Tomkins
  13. DinoSR8LM

    DinoSR8LM Karting

    Dec 3, 2010
    166
    The only size they have for an 18x10 is a 295/30/18, which is the front tire on the Viper ACR.
     
  14. Bullitt44

    Bullitt44 Karting

    Feb 22, 2005
    226
    Westlake, OH
    Full Name:
    Jon Sabo
    This is one great project and one heck of a FrankenFerrari!
     
  15. 246tasman

    246tasman Formula 3

    Jun 21, 2007
    1,441
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    Will Tomkins
    yes, its the right overall diameter & 245/35/18 for the 8in fronts...
     
  16. DinoSR8LM

    DinoSR8LM Karting

    Dec 3, 2010
    166
    Makes sense, for comparisons sake the 245/35/18 are the fronts on a Murcielago with a much lighter nose and the 295/30/18 are the rears on the '04 911 GT3. The Corsas also have the same combination in 19 and 20s which are Ferrari OE if you have room to go taller.
     
  17. tbakowsky

    tbakowsky F1 World Champ
    Consultant Professional Ferrari Technician

    Sep 18, 2002
    19,349
    The Cold North
    Full Name:
    Tom
    LOVE IT!! God I wish more Ferrari owners would hot rod thier cars. I really wanna gut and tweak a Testarossa, just haven't found the right car yet. I'll find it tho'!!
     
  18. pma1010

    pma1010 F1 Rookie

    Jul 21, 2002
    2,559
    Chicago
    Full Name:
    Philip
    Will, was there ever an update describing more recent history?
    Philip
     
  19. OttoB

    OttoB Formula Junior

    Aug 17, 2013
    699
    Palm Beach, FL
    Ran into this old thread, again during a search for upgrading brakes, and the project is certainly interesting enough, but its been a few years. Anyone know of the owner and/or the whereabouts of the car?
     

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