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All Day Long

Discussion in '365 GT4 2+2/400/412' started by ricar116, Jan 21, 2017.

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  1. ricar116

    ricar116 Formula Junior

    Aug 2, 2005
    409
    Bolivar, Missouri
    Full Name:
    Rick Carr
    #1 ricar116, Jan 21, 2017
    Last edited by a moderator: Sep 7, 2017
  2. bjwhite

    bjwhite F1 Rookie

    Mar 17, 2006
    4,676
    Seattle, WA
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    Brian White
    Around a turn even! :)
     
  3. Newman

    Newman F1 World Champ
    Consultant Owner Professional Ferrari Technician

    Dec 26, 2001
    14,093
    Canada
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    Newman
    I would get dizzy going in a circle all day long :)
     
  4. simon klein

    simon klein Two Time F1 World Champ
    Owner Silver Subscribed

    Feb 25, 2009
    28,802
    North Qld
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    simon klein
    Bolivar Speedway??
     
  5. bjwhite

    bjwhite F1 Rookie

    Mar 17, 2006
    4,676
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    Brian White
    Circuit de Bolivar.
     
  6. ricar116

    ricar116 Formula Junior

    Aug 2, 2005
    409
    Bolivar, Missouri
    Full Name:
    Rick Carr
    Ha Ha Ha for Bolivar Speedway it would have to be turned the other way. Just switching lanes while taking a picture. I had the winter car blues questioning why I had them. It was a beautiful day went for a spirited drive...oh yeah thats why, all good.
     
  7. Jagbuff

    Jagbuff Formula 3

    Jan 13, 2004
    2,267
    Site of US F1 Race!
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    Franck
    Is it Auto or manual? Just musing - speed is 110mph (being generous considering the precision of the Ferrari speedometers), 1000 revs before redline - what's the indicated speed at redline, can you go back out and give a report ;)
     
  8. Highmiler

    Highmiler Formula Junior

    Dec 8, 2010
    414
    Missouri
    Full Name:
    Greg
    Well, it could have been running the Lucas Oil track at Wheatlands backwards.
    Greg
     
  9. ricar116

    ricar116 Formula Junior

    Aug 2, 2005
    409
    Bolivar, Missouri
    Full Name:
    Rick Carr
    The speedometer showed about 5 mph less than the gps on the phone . I was as curious about the accuracy of the tach. Rounding down to 110 and rounding tach up to 6000 rpm would give us a 128.33 at 7000. The car would easily pull redline in 5th and I believe beyond. Did give the knock offs a good wack before I left, but I should have checked the pressure in the 12+ year old P6000's. Greg I don't know if you ever go to Wheatland, but if you do let me know, bet they would give us good parking. Give me an excuse to sort on my rather dim instrument lighting.
     
  10. Highmiler

    Highmiler Formula Junior

    Dec 8, 2010
    414
    Missouri
    Full Name:
    Greg
    For the enlightenment of the rest of the members: the Lucas Oil track facility is larger than the town of Wheatland, MO. in which it is located. It is a dirt circle track complete with Grand Stand seating.

    I'd bet we could do a couple of laps any night as the pace cars, or maybe as our own class!

    Greg
     
  11. OttoB

    OttoB Formula Junior

    Aug 17, 2013
    699
    Palm Beach, FL
    Was your odometer reset at one point, or are my eyes deceiving me into seeing that your car only has 70+ miles, or?
     
  12. Al Campbell

    Al Campbell Formula Junior
    Owner Silver Subscribed

    Nov 22, 2013
    571
    Australia
    Good to see you out having fun. :D I miss our open speed limit. :) What gear were you in at the time of this shot? My auto changes from 2nd - 3rd at 100MPH under full acceleration.

    Cheers,
    Al
     
  13. ricar116

    ricar116 Formula Junior

    Aug 2, 2005
    409
    Bolivar, Missouri
    Full Name:
    Rick Carr
    #13 ricar116, Jan 23, 2017
    Last edited: Jan 23, 2017
    Your eyes were not deceiving it is showing less than 100 miles. When I rebuilt the car and engine I replaced the KPM with a new o mile MPH speedo. We put about 40 miles and the cable gave up the ghost, so drove it maybe a few 100 miles with no speedo. This was my first drive with it operating again.
     
  14. ricar116

    ricar116 Formula Junior

    Aug 2, 2005
    409
    Bolivar, Missouri
    Full Name:
    Rick Carr
    We are limited here. Mine has the 365 motor with a 5 speed. I was in 5th.
     
  15. ///Mike

    ///Mike F1 Veteran

    Dec 11, 2003
    6,097
    Bugtussle
    Wow, I had no idea those cars were geared that short. I thought they were 140+ mph cars, at least on paper. So how slow can you go in 5th and still have good tractability?
     
  16. simon klein

    simon klein Two Time F1 World Champ
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    Feb 25, 2009
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    They are,don't you worry about that.
     
  17. Ferraridoc

    Ferraridoc F1 World Champ
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    Patrick
    Joh?
     
  18. simon klein

    simon klein Two Time F1 World Champ
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    ...and experience!
     
  19. Al Campbell

    Al Campbell Formula Junior
    Owner Silver Subscribed

    Nov 22, 2013
    571
    Australia
    The auto's are no where near that short. I've had mine maxed out to 160MPH on the speedo (252kph on GPS) & it hadn't hit redline.
     
  20. Ferraridoc

    Ferraridoc F1 World Champ
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    Patrick
    The autos have a very tall diff - it's one of the things you need to change to convert to manual. I think it's in the low 3:1 somewhere, and the manual is closer to 5:1 - I'm sure someone can chime in here with the actual numbers.
     
  21. ///Mike

    ///Mike F1 Veteran

    Dec 11, 2003
    6,097
    Bugtussle
    Interesting. Thanks for the responses. I'm still really surprised at the revs vs. MPH in that pic. I was guessing that the OP was in 4th based on the revs. I would have expected a higher (actual) top speed from a 5 speed car.
     
  22. Arvid

    Arvid Formula Junior
    Silver Subscribed

    May 28, 2012
    668
    Norway
    Full Name:
    Arvid Andersson
    #22 Arvid, Jan 24, 2017
    Last edited: Jan 24, 2017
    I always thought the 5-speed achieved its top speed at redline ? 128mph at 7000 seems off. Do you have original tires ? The 400 has a 6500 redline and when cutting that to 3250 I have 120kmh/75mph - so proclaimed top speed of 240kmh/150mph seems correct.

    365GT4 2+2 has same rear ratio as the 400GT 5-speed - 4.3:1 with 10/43 stamped on diff and 400Auto has 3.25:1 - 12/39
     
  23. Ferraridoc

    Ferraridoc F1 World Champ
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    Jun 20, 2012
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    Patrick
    Just perusing the manual - 152mph for the manual, 149mph for the auto (also has 15" wheels mentioned in the manual, so might be some slight variation).
    Diff ratio 4.3 in the manual, 3.25 in the auto

    Edit: I see Arvid beat me to it! I should type faster.
     
  24. 365GT4 2+2

    365GT4 2+2 Karting

    Jan 1, 2016
    55
    Essex, England
    Full Name:
    Justin R


    Manual cars have a 4.3:1 ratio. From contemporary road tests fifth gear gives 22.8mph/1000rpm which would mean 148mph at 6,500rpm. Maybe the tachometer in this car is reading too high ?


    Sent from my iPhone using Tapatalk
     
  25. ricar116

    ricar116 Formula Junior

    Aug 2, 2005
    409
    Bolivar, Missouri
    Full Name:
    Rick Carr
    Astute observation. I trust my tach as much as I trusted a previous girlfriend. I have a bouncy tach needle at idle. When the engine is off the tach is registering 1000 rpm. I am not saying it is off that much I believe it anywhere from 10 to 12 %. Hopefully the sort will only reveal improper cable installation. (cable not seated in distributor or tach). When running on the 55 mph highways I will stay in 4th. 75 mph the engine is not lugging and feels comfortable in 5th. I am running 215 70 15's I believe are original sized tires. So nothing small in diameter which would show higher RPM than normal.
     

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