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ideal RPM when shifting ?

Discussion in '348/355' started by Awtobahn, May 20, 2011.

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  1. Awtobahn

    Awtobahn Rookie

    May 19, 2011
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    Christopher Dziekan
    #1 Awtobahn, May 20, 2011
    Hi experts. Since I'm still new and learning. What is the ideal RPM I should aim for between gears 2,3,4,5 once engine warm ? Am I also correct that when cold I should keep it below 4000 except for 1st into 2nd ?
     
  2. davebdave

    davebdave Formula 3
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    #2 davebdave, May 20, 2011
    Correct, stay below 3-4000rpm in all gears until the water temp comes up. I feel like throttle usage should dictate your shift points. Light throttle = lower rpms, max throttle = redline. At a minimum I try to shift so the revs never drop below 3000 (aprox 5000rpm upshift), that way I have power if I need it.

    But, it's a sports car so you should do whatever you think is the most fun.

    Dave
     
  3. b-mak

    b-mak F1 Veteran

    Jan 23, 2004
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    #3 b-mak, May 20, 2011
    Redline. Always.
     
  4. PAP 348

    PAP 348 Ten Time F1 World Champ
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    #4 PAP 348, May 20, 2011
    I shift around 3000-4000 RPM when casually driving around. Just 'feels' around the right rev range for the 348. :):)

    When Pap wants to be a naughty boy, he shifts near redline. ;);)
     
  5. rbellezza

    rbellezza F1 Rookie

    Jun 18, 2008
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    Roberto Bellezza
    #5 rbellezza, May 20, 2011
    Every time I drive mine at least once gets close to red line, i rarely check the RPM during shifting it's just a feel ...
     
  6. PAP 348

    PAP 348 Ten Time F1 World Champ
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    Dec 10, 2005
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    #6 PAP 348, May 20, 2011
    Oh, yeah. I dont watch the tacho either, but I shift around 3000-4000 RPM from what I have noticed.

    Same deal as you, feels about right. :D:D
     
  7. jmiff348

    jmiff348 Formula 3
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    #7 jmiff348, May 21, 2011
    +1 but invest in a Valentine One first. :)
     
  8. AceMaster

    AceMaster Three Time F1 World Champ

    Feb 6, 2009
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    #8 AceMaster, May 21, 2011
    When casual driving, I shift at about 3000...and when I wanna have some fun, closer to redline :):)
     
  9. GerryD

    GerryD Formula 3

    May 5, 2010
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    Guido
    #9 GerryD, May 21, 2011
    Last edited: May 21, 2011
    Casual driving should be shifting at 4500 and up. Shifting at lower revs continuously will kill your engine in the longrun. These cars have to be reved high every time your out in them. The main reasons for carbon all around the valves causing them to stick and lose compression is not only cheap low octane fuel but mostly not reving it high enough. Combine the 2 and your asking to spend big bucks sooner than later.
     
  10. davebdave

    davebdave Formula 3
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    #10 davebdave, May 21, 2011
    [ame]http://www.youtube.com/watch?v=P1po2XzeXzE[/ame]
     
  11. Mitch Alsup

    Mitch Alsup F1 Veteran

    Nov 4, 2003
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    #11 Mitch Alsup, May 21, 2011
    Err, no: its the O.I.L. temperature that is the important temperature to watch. Wait for the oil temp to achieve 140dF before reving the crap out of it. Stay below 4000 RPMs until the oil temperature gauge moves off its low point.
     
  12. Labman

    Labman F1 Rookie
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    #12 Labman, May 21, 2011
    When the beautiful sound you hear as the by-pass valve opens...time to shift!
     
  13. davebdave

    davebdave Formula 3
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    #13 davebdave, May 21, 2011
    Last edited: May 21, 2011
    I don't disagree, I was only quoting the Ferrari manual for our 348 engined Mondial t. Practically speaking, once the water is up the oil is off of the peg. The Ferrari has steel cylinders in an aluminum block so I can see why the water temp would be important. The manual makes no mention of a minimum oil temp, only a maximum. Experience shows that the transmission is not completely smooth until the oil is around 140, so I also wait for this number to drive it hard.

    While our cars have the same engine (I assume the OP has a 348 as he made no mention of 6th gear) they do have different external water and oil setups. Perhaps the 348 manual makes reference to a min oil temp.

    dave
     
  14. FullChat

    FullChat Formula Junior

    Jan 1, 2007
    339
    San Antonio, Texas
    #14 FullChat, May 21, 2011
    What RPM to shift at?
    Well, the cutoff is at 8700, so I'd say about 8699.....
     

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