Do testarossa'a have rev limiters? | FerrariChat

Do testarossa'a have rev limiters?

Discussion in 'Boxers/TR/M' started by bpu699, Mar 22, 2005.

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  1. bpu699

    bpu699 F1 World Champ
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    I'm starting to drive my car pretty vigorously since the weather is finally complying. Redline seems to be 7000, but at what point does the rev limiter kick in? On a couple of up shifts the tach went very slightly past redline - I didn't feel any limiter kick in.

    Is there a rev limiter? Is it a fuel cut off or spark cut off? When does it kick in? Or should I start granny shifting at 4000 rpm :) ?

    Thanks!
     
  2. Kds

    Kds F1 World Champ

    IIRC a member posted photos here of his boss's TR at 9,000 rpm or something like that.

    So I'd say if those photos were real....and real they did look.....I'd say that the answer is no.
     
  3. bpu699

    bpu699 F1 World Champ
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    The motor survived 9000 rpm????

    If it doesn't have a rev-limiter, I'm shocked. The liklihood of a car being over-revved is probably 100% within the first 5000 miles...and more likely after that!

    If thats the case, can one be added on? Which other ferrari's don't have one?
     
  4. Rifledriver

    Rifledriver Three Time F1 World Champ

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    That is the very first question I answered here and when I said they all came with them people jumped and screamed and told me I don't know what I'm talking about. They all came with them. I did PDI'S on probably 100 cars and tested the rev limiter on every one. I have driven hundreds since and every on I have revved that hard had one. The ignition box that controls it is the same world wide. The tachs are not all that accurate so it does not work at the same indicated point on every one. If your car does not have one it is because it is broken. It should cut in about 100 rpm past redline, and if it's working you won't miss it.
     
  5. Rifledriver

    Rifledriver Three Time F1 World Champ

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    I've seen lots of Ferrari motors survive very short bursts considerably past 9k RPM but it is very dangerous.

    Some but not all 400's and BB's had them and all cars TR, 3.2 and newer have them. Like I said they don't always work (imagine that, an electronic gadget in a Ferrari that doesn't always work) but they are there.
     
  6. bpu699

    bpu699 F1 World Champ
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    Whats the best way of checking to see if it works?

    I know...I know...just rev it past redline and see if it cuts out, right? I can see my follow up post: "Gee, I was trying to check my rev limiter, got it to 7500 rpm, and then I heard a really loud noise...then the motor stopped. Was that the rev-limiter ;) ?"

    Any other way?
     
  7. Rifledriver

    Rifledriver Three Time F1 World Champ

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    Drive it up the road and do it your way, just be cautious. and don't go much past the max. If nothing happens hook up another tach and check yours for accuracy at high RPM.
     
  8. Wasco

    Wasco Formula Junior

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    I assume you mean newer f-cars as in after 85?

    I am pretty sure my 78 308 has none. It has 70K on the clock and has been to 8k+.
     
  9. TOM B

    TOM B Formula 3

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    And why is that?
     
  10. Rifledriver

    Rifledriver Three Time F1 World Champ

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    The question was directed at TR's, 85-91.
     
  11. TOM B

    TOM B Formula 3

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    Yup. Most racecar suppliers will have a variety. Theyre easy to hook up and cost < $200.00. But remember. Set it to the "4 cylinder" setting on an 8 cylinder Ferrari. The Ferrari's ignition system is two 4's put together to make 8.

    Try Pegasus and Truechoice.

    Tom
     
  12. Rifledriver

    Rifledriver Three Time F1 World Champ

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    BTW In a Ferrari it is always the rods that go, so unless you want to see them up close and personal don't do this at home kids.
     
  13. bpu699

    bpu699 F1 World Champ
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    Tom, if you have NEVER hit a rev limiter - you drive more carefully than most...or you constantly have your eye on the tach and not on the road...

    Hitting a rev limiter is pretty easy to do...and if you don't have one...you will likely over rev. Thats all I meant to say!
     
  14. Ken

    Ken F1 World Champ

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    I don't worry about exceeding the redline on the way up, but downshifting during a heel/toe at high revs is a great way to get the RPMs over 10k if you miss the shift...at least until the metal bits start flying around. Luckily I've not done that yet.

    Ken
     
  15. bpu699

    bpu699 F1 World Champ
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    Follow up question - if your rev limiter doesn't work, whats the cost to fix? DIY job? I am going to try to verify that my tach is accurate first...but I definitely don't feel anything kick in if I hit 7500 rpm or so on an upshift...

    Can an after market limiter be added, if one is needed? Who makes one?
     
  16. Dave

    Dave F1 Rookie

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    That is why your car comes with a Tach!
    So you can see where your RPMs are at...
    I would suggest that you learn to look at it.
     
  17. bpu699

    bpu699 F1 World Champ
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    Dave, if you shift at 6000 rpm plus (redline is 6800), it doesn't matter if you are staring at the tach...or not. When you depress the clutch, there is a good chance the revs will rise, unless you take your foot almost completely off the accelerator...

    I am keenly aware of my tach... But I doubt anyone can regularily massage the tach -driving aggressively- so it goes just to redline and kisses it, and then goes down. Is Schumacher in the room?

    If you have never hit the rev-limiter (assuming the car has one) - you ain't driving...or you are driving really cautiously...and SSSLLLLOOOWWWLY.
     
  18. Dave

    Dave F1 Rookie

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    Maybe i just learned the proper way to drive a car with a manual transmission at such an early age that it's old hat to me.
    But yes, when I engage the clutch, the gas pedal is let all the way off.
    You don't want to free rev the motor during a shift with the clutch engaged.

    "If you have never hit the rev-limiter (assuming the car has one) - you ain't driving...or you are driving really cautiously...and SSSLLLLOOOWWWLY"

    I guess I'm just showing my age, because when I drive on the street,
    I always drive cautiously, with respect for my fellow motorist,
    even more so when I drive one of my Ferraris.

    Having taken all of my cars for runs on the dyno,
    I know exactly where the power band is on each of them.
    And I can tell you with all honesty, my cars don't make squat for power if a rev limiter is cutting the ignition out.
     
  19. jimpo1

    jimpo1 Two Time F1 World Champ
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    I think it was CHAA that posted pictures of his TR significantly exceeding redline. I seem to recall that he was turning 12,000 rpm? I'm probably wrong, but it was high. I can't believe they have a rev limiter after seeing that post.
     
  20. Rifledriver

    Rifledriver Three Time F1 World Champ

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    Reread post 4.
     
  21. millemiglia

    millemiglia Formula Junior

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    #21 millemiglia, May 18, 2005
    Last edited by a moderator: Sep 7, 2017
    Exactly!
    Take a look at this picture of a '89 Testarossa, 500rpm's with the ignition off.
    Not very accurate...
    Image Unavailable, Please Login
     
  22. Rifledriver

    Rifledriver Three Time F1 World Champ

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    They are built that way. The stop will not let it go lower, very std in Italian instruments and has nothing to do with accuracy.


    Have a look at the speedo same thing, built that way.
     
  23. bpu699

    bpu699 F1 World Champ
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    Out of curiosity, how far off can the tach be? Are we talking a couple hundred rpm, or a thousand?
     

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