Calling all you F430 F1 clutch/gearbox experts | FerrariChat

Calling all you F430 F1 clutch/gearbox experts

Discussion in '360/430' started by PurpleHaze, Aug 5, 2013.

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  1. PurpleHaze

    PurpleHaze Karting

    Jul 25, 2010
    84
    Berkshire, UK
    Hi fellow F-chatters from across the pond

    I've just picked up my new-to-me F430 F1 coupe. It's a late November '06 model and I have a question for you clutch/gearbox experts.

    Previously, I had a march '08 F430 F1 and the gear changes were pretty succinct, there was very little 'over run', so if I'm accelerating in 2nd and I change to 3rd, there was a slight jolt but 3rd came in pretty sharpish with the correct revs (this is in Sport mode).

    On the '06 F1, there is quite a lot of time between shifts (again, in sport mode). When accelerating in 2nd and changing up to 3rd, regardless of whether I lift of the gas there's a short zoom up in revs (I think this is a clutch slipping issue) but then there's almost half a second or so of the revs falling before it hits 3rd.

    My question is, do the 06 cars really have this much delay between changes? I know the software on the TCU has probably been upgraded on the 08 car but my new 06 feels sloppier than my 360 F1 did.

    I'm going back to the dealer about the clutch slip issue but I wondered if that could also cause the slowness in gear changes? It's never had a new clutch apparently and is on 11,900 miles.

    Thanks all
     
  2. rustybits

    rustybits F1 Rookie
    Professional Ferrari Technician

    Jan 28, 2007
    2,509
    Somewhere, anywhere
    Full Name:
    Eddie B
    If the clutch is slipping then the changes will be slower. If the clutch is not correctly adjusted it can also cause a lethargic change. Shame you aren't a little closer, i'd have thrown the SD3 on it for you and checked it...
     
  3. PurpleHaze

    PurpleHaze Karting

    Jul 25, 2010
    84
    Berkshire, UK
    Thanks man

    I just spoke to the main dealer and It's going back to them to get checked - luckily they're a great bunch and should sort it for me - it's my 3rd car from them.

    I'll keep you posted
     
  4. m3doc

    m3doc Karting
    Rossa Subscribed

    Oct 22, 2008
    138
    I'm curious about this as well. In the different f430s I've driven regardless of the year or clutch wear numbers, I've noticed that some shift more sharply (without a delay) compared to others. Not sure if this is a software issue or a matter of the PIS needing to be adjusted.
     
  5. 4RE Guy

    4RE Guy Karting

    Aug 3, 2008
    90
    early 430s have different TCU software then the 08 ..keep that in mind.
    08 is "sofast 3"
    food for thought
     
  6. mtradwan

    mtradwan Rookie

    Feb 19, 2017
    6
    do u see the rpm rais on normal street driving rpm range 3k-4k?

    try it on red line rpm that's where the setting makes a deference (race-sport)
    when I adjust the pis and the clutch configuration and its slightly off the first symptom is a slight up blimp when the shifting (normal driving).
    I usually lower the clutch distance a little or the PIS and it fixes it. but in return it will change the clutch wear and the biting point.
    this has to do with the clutch senor positioning the clutch to where the TCU thinks its fully locked in but its probably off by 0.3mm.
     
  7. Alan NZ

    Alan NZ Rookie

    Sep 10, 2017
    22
    New Zealand
    Full Name:
    Alan
    My 06 car does this on up shifts - revs increase slightly before the next gear is selected. The PIS has been adjusted to try and fix this but it made no difference. I would appreciate it if you could explain your process for adjusting the clutch distance.
    How much do you change the setting at a time and do you then drive the car until the slurring stops? Does changing this setting have any other effect on the car other than changing the the clutch wear indication?
     
  8. TheCook

    TheCook Formula Junior

    Oct 16, 2015
    304
    Buckinghamshire
    Full Name:
    Ian
    #8 TheCook, Nov 24, 2020
    Last edited: Nov 24, 2020
    My experience was that PIS set too low would drag the clutch when idling at standstill in first gear. Little higher (+.3mm) and drag stops but initial takeoff is harsh. Add 0.1mm incrementally until you can take off/manoeuvre smoothly in first or reverse. You do need to be positive with the throttle, ie takeoff not creep. All done in Sport mode.

    For me that turned out to be 5.7mm. My understanding is that this means that once a gear is engaged, or when changing gears, the clutch moves to 5.7mm off fully closed position and then closes progressively according to wheel speed and engine revs. PIS too low means the clutch is never fully disengaged hence drag or even failure to engage. PIS too high results in clutch slip/raised revs due to torque increase before the clutch engages sufficiently.

    Adjusting the PIS should not change the wear index. That is calculated by measuring the change over time of the clutch fully closed position. The reference position is set on installation of a new clutch and as it wears it must of course move further to reach the fully closed position as the material has been worn down. The fully closed position is recorded automatically by the clutch position sensor.

    Sent from my iPhone using Tapatalk
     
  9. nickorette

    nickorette Formula Junior
    Silver Subscribed

    Jun 19, 2017
    375
    Canada
    Probably needs new acculmator. They're rubber and wear over time, lowering hydraulic pressure and slowing down shifts.

    Could also be worn F1 relay. I'd look into scudinc relay
     
  10. CoreyNJ

    CoreyNJ Formula 3
    Silver Subscribed

    Apr 17, 2006
    2,468
    New Jersey Shore
    This is the best explanation for how to drive an F1 I have ever heard. Everyone just says drive it like a manual, but to be honest that depends on what kind of car you have as they all drive differently from takeoff.
     

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