New owner 488 GTB | Page 2 | FerrariChat

New owner 488 GTB

Discussion in '458 Italia/488/F8' started by Horst997tt, Jun 4, 2017.

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  1. Horst997tt

    Horst997tt Karting

    Jun 4, 2017
    107
    #26 Horst997tt, Jun 5, 2017
    Last edited by a moderator: Sep 7, 2017
    Coming back to my 488 GTB the car looks al little bit too high,
    " lot of air between tires and wings"

    But I leave suspension like it is, no lower springs, softer suspension has advantages
    on our country roads, with Hockenheim race course time of 1:07 min car is fast
    enough ( for me ) and I like the smooth gliding over bumpy country roads, much
    better as my C63, Mc Laren is also relatively comfortable.
    488 looks high, but gap between underfloor vortex spoilers and street is only 10 cm (4 inches)
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  2. nkhalid

    nkhalid Karting

    Mar 5, 2015
    79


    Damn.. that's some pretty detailed data Horst .. will look through later .. thanks..


    Sent from my iPhone using Tapatalk
     
  3. Horst997tt

    Horst997tt Karting

    Jun 4, 2017
    107
    #28 Horst997tt, Jun 6, 2017
    Last edited by a moderator: Sep 7, 2017
    It is a little bit pity, that 488 goes in manual race mode only to about 7500 revs/min.
    My test car 2015/11 did the same, no software upgrade to my 2017/1.
    Optimal switching rev is 7850 revs for best acceleration, but only you get in LC mode.
    I confronted Ferrari Germany that at no manettino mode 8000 revs/min is reachable,
    but answer was only a shrug, no statement why...

    Seen 488 dyno charts, nearly all charts show power maximum of enginge at 6700-6800 revs/min, then
    slightly decreasing, no chart shows more than 7400 U/min as rev limiter in every manual mode
    hits at 7500 revs/min. But best switching point would be 7850 revs/min due to gear spread


    Engine power itself of 488 is ok, I have seen al lot of dyno files/charts from 488.
    Average power from German dyno runs about 675 hp, Capristo measured about
    656 hp, but he measured wrong without ventilation or blowing charge air intercoolers.

    German Sportauto magazine made it at 488 GTB Supertest better and cooled IC's and
    measured 700 PS ( 690 hp)

    Like the most 991 TT(S) also 488 has a small surplus of qouted engine power of 2-4%, but not
    more like the most modern turbo engines, turbo pressure sensors are today
    very accurate and power tolerances therefore are very low at (turbo) engines.

    Lot of dyno charts are wrong, Carpristo for example corrected measured power at 991 TTS by
    factor of ambient air pressure, this is ok for n.a. engines, but modern turbo engines
    do not care about ambient air pressure until about 1000 m altitude.

    Measurement in this Capristo Video is doubtful, no ventilation of charge air intercoolers.
    https://m.youtube.com/watch?v=T5BeS47lzU4
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  4. Giallo77

    Giallo77 Karting

    Feb 24, 2005
    166
    Switzerland
    I had the same disussion with my dealership regarding the early shift limit - they said that the factory gives no official statement... I suppose that the factory fears problems with the turbos within the guarantee period! I was put off with the statement that the 2015-delivered models will deliver all 700 PS and more at well under 7000/min rev range!
     
  5. Horst997tt

    Horst997tt Karting

    Jun 4, 2017
    107
    #30 Horst997tt, Jun 6, 2017
    Last edited: Jun 6, 2017
    Ferrari is cheating, I had no problem Ferrari had quoted 670 PS ( 661 hp) at
    6800-7400 revs/min.

    Italian car magazin Quattroruote confirmed my OBD2 rev limit read in 488 GTB test
    2016/3: 7850 revs/min is deadline in LC mode and 7450-7500 revs/min in race mode.
    I confirm this results at my 2017/1 488 GTB
    100-200 kph in Quattroruote was very good in 5.2 s in LC mode, but only 5.7 s in automatic/manual race
    mode. This I can also confirm: 5.4 s in LC and 5.7-5.8 s in manual or automatic
    race Mode, without co- driver , Quattroruote measures also without co- driver,
    co- driver deteriors 100-200 kph time at 488 at roughly 0.25 s.

    I guess Ferrari does not trust steel rods over 8000 revs/min, steel rods are first choice at
    turbo engines, reason is that steel rods have reversible deformation characteristic, titanium irreversible
    at too much load, inertia forces of steel rods are higher as heavier than titanium and so Ferrari
    reduced max. rev for stock 488 after marketing department released 8000 revs/min because marketing of Ferrari
    wanted to see " 8000"!

    Ferrari should alter specs and communicate with customer why they never see 8000 revs/min at 488.
    This would be the honest way!

    Regards Horst
     
  6. Melvok

    Melvok F1 World Champ
    Owner Silver Subscribed

    Jul 25, 2008
    14,116
    Amersfoort, The Netherlands, Europe.
    Full Name:
    Mel
    Horst have you seen the 2 or 3 threads about modifying the Ecu's of the 458 ?

    One of them ... about Open Flash ...
     
  7. dhari

    dhari Karting

    Jan 24, 2011
    197
    Vancouver,Canada
    Full Name:
    Deepak Hari
    Loving the technical talk regarding the 488. Great thread! Very informative!
     
  8. Horst997tt

    Horst997tt Karting

    Jun 4, 2017
    107
    #33 Horst997tt, Jun 7, 2017
    Last edited by a moderator: Sep 7, 2017
    Before I bought 488 GTB I looked in 488 GTB book and was delighted about
    the power curve! Constant 670 PS from 6500-8000 rpm, fantastic!

    Driving on the road rev limiter at 7500 rpm, disappointing!
    According my dealer, I am the only one, who complains....
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  9. footsoldier

    footsoldier Karting

    Sep 18, 2009
    240
    I know more than one person who bought Lambo Aventador SV, and claim that the ECU map changed after the first 1000 miles or so, and became more aggressive. This was not 'official'. Is there any chance the 488 does the same - does it get to 8000 revs after being 'run-in'?

    (Mine has done 200 miles, but will do another 1000 by Friday so I will be able to tell!)

    ETA...Sorry, i just re-read your first post and can see you are already at 2000km...
     
  10. Horst997tt

    Horst997tt Karting

    Jun 4, 2017
    107
    #35 Horst997tt, Jun 7, 2017
    Last edited: Jun 7, 2017
    Concerning rev limiter, there is no change after running time of engine.

    If you see gear ratio than it is clear that 488 is in LC mode faster even over 60 mph than in manual/auto mode, if you shift at 7400 rpm, short before rev limiter hits, you have following connection rpm from gear switch to gear switch: ( ECU OBD 2 values)

    1./2. gear: 5071 rpm
    2./3. gear: 5596 rpm
    3./4. gear: 5863 rpm
    4./5. gear: 6027 rpm
    5./6. gear: 5807 rpm
    6./7. gear: 5429 rpm

    And now connection revs in LC mode:

    1./2. gear: 5379 rpm
    2./3. gear: 5936 rpm
    3./4. gear: 6220 rpm
    4./5. gear: 6394 rpm
    5./6. gear: 6160 rpm
    6./7. gear: 5759 rpm

    Gear connection in LC mode at 7850 rpm has on average 6 % higer connection revs from gear to gear,
    this means about 35 hp higher engine power availabe after LC switching and about 5- 6% better
    acceleration times like 100-200 kph or 100-300 kph compared to manual switching with early rev limiter.

    Surely, Ferrari has chosen optimal switch rev of 7850 rpm in LC mode for best acceleration results in test
    magazines. LC is ok for 1/4 mile races but not for race courses or country roads or German Autobahn.

    Would my 488 go in manual mode ( race ) to 7850 rpm , I would be happy!
     
  11. Giallo77

    Giallo77 Karting

    Feb 24, 2005
    166
    Switzerland
    The same with me: I would have appreciated if the factory would admit that they have made a false data information with the 8'000 rev/min. Even worse: They still have this incorrect data in the actual 488s technical information!

    I seem to be the only disappointed client in my dealership too...
     
  12. Horst997tt

    Horst997tt Karting

    Jun 4, 2017
    107
    #37 Horst997tt, Jun 7, 2017
    Last edited: Jun 7, 2017
    I will complain to Ferrari, the more owner doing this, the more is Ferrari urged to
    change specs or to change something, it is impudent, that Ferrari makes no comment on the issue
    " rev limiter"!

    I have measured a lot of cars on my test road with marked line for start from
    standing car. Last measurements were Audi V10 plus 610 PS and 991.1 Turbo S with dyn
    result of 585 PS engine power. (Next is hopefully Huracan Performante I will get for test drive in some weeks).

    In LC mode my 488 GTB (5.4 s) is at 100-200 kph 1.0 s faster than Audi (100-200 kph: 6.4 s)
    and 1.3 s faster than Porsche (100-200 kph: 6.7 s). Measured tank full, without
    co - driver.

    But: All cars in auto race or S+ auto mode, 488 is only 0.5 s faster
    than Audi and 0.8 s than Porsche due to too early switching, same in manual mode.


    Audi and Porsche have same rev limiter in LC or race / S+. So no change of 100-200 kph times
    without LC.

    Without LC mode is 0-62 mph or 0-100 kph for all three cars similiar: about 3.4-3.5 s, no big difference,
    Porsche can gain at most with LC about 0.7 s, not surprising, but without LC 488 is not slower.


    Regards Horst
     
  13. Horst997tt

    Horst997tt Karting

    Jun 4, 2017
    107
    #38 Horst997tt, Jun 7, 2017
    Last edited: Jun 7, 2017
    Regarding max. speed : Ferrari claims at 488 GTB > 330 kph but all known
    GPS measurements show deadline of 330 kph. Italian Quattroruote car
    magazine measured 330.83 km/h, 331-332 kph also measured on
    Autobahn, speedometer shows then 342 -343 kph.
    330 kph are 7400 rpm in 7 th gear and throttles close over 331-332 kph depending
    on wear of tires. With 661 hp would be 340 + kph feasible but throttles close at
    about 331-332 kph.

    (Good 458 Italia could also reach GPS 330 kph, but need a very, very long distance/time)

    Ok, I think, 330 kph is enough, between 300-330 kph gear ratio matches very well,
    range is 6730 - 7400 rpm, nearly max. engine power, then clearly faster in this range as Huracan/650s
     
  14. xskier

    xskier Formula Junior

    Mar 2, 2013
    356
    #39 xskier, Jun 8, 2017
    Last edited by a moderator: Sep 7, 2017
    Well Horst if you compare this 2 test 488and 720 s there is a significant gap up to 150mph and
    even more up to 170mph
    Greetings from PFF
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  15. xskier

    xskier Formula Junior

    Mar 2, 2013
    356
    #40 xskier, Jun 8, 2017
    Last edited by a moderator: Sep 7, 2017
  16. dustman

    dustman F1 Veteran
    Rossa Subscribed

    Jun 12, 2007
    9,051
    Without LC what is the 0-60?
    I have a spider so perhaps slower than coupe.
     
  17. Horst997tt

    Horst997tt Karting

    Jun 4, 2017
    107
    #42 Horst997tt, Jun 8, 2017
    Last edited: Jun 8, 2017
    I will measure 0 - 60 mph of my 488 GTB in the evening in auto race and manual race
    without LC and post results.

    0-62 mph (0-100 kph) in auto/mode mode has the disadvantage that early rev limter hits in
    2. gear at 60 mph respectively in auto mode switch from 2. to 3. gear is at about 60 mph.
    As my tires are new, I could touch 60 mph in 2. gear in manual/ auto mode.

    Mc Laren 720 S is clear faster from 150-170 mph, as 5th gear goes ecactly short over
    170 mph.

    I have not seen 0-300 kph test results of 720 S, but I guess 21.5 s- 22.0 s is expectation, best 488 GTB measured
    was 0-300 kph in 24.3 s ( Italian Quattroruote magazine)

    There is no big difference of 488 GTB and Spider iin acceleration:

    Both measured with LC 3.1 s 0-100 kph and 0-200 kph was GTB 8.7 s and Spider 9.0 s
    ( measured with co- pilot, co-pilot deteriors 100-200 kph times at about 0.25 - 0.3 s)

    Even 0-300 kph in 25.6 s is good value of Spider with worse drag coefficient, was measured with
    co- pilot, 0-300 kph than about 1 s slower.


    Ferrari/ Mc Laren/ Lambo specs for acceleration are without co - driver, Porsche with.

    Regards Horst
     
  18. dustman

    dustman F1 Veteran
    Rossa Subscribed

    Jun 12, 2007
    9,051
    Thank you.
     
  19. Dbops618

    Dbops618 Formula Junior

    Feb 27, 2017
    331
    florida
    Full Name:
    D. Hernandez
    so in other words , I will wait for the next platform. this car seems overprices... sorry guys just my opinion from the extensive reading I have done and yes I did drive one. once again, overpriced. I presently drive a 458 spider 2013... at least I didn't pay out the nose
     
  20. JimPVB

    JimPVB Formula Junior

    Apr 24, 2016
    633
    Florida
    They're all overpriced...always...so what's the point....do you think the next model won't be???



    Jim
     
  21. 100badboy100

    100badboy100 Formula Junior
    Owner

    Sep 15, 2016
    825
    Devon- U.K.
    Full Name:
    Michael
    Hi Horst

    Some good tech facts in your posts.

    Quick Question...Do you like your 488?

    Regards

    Michael
     
  22. Horst997tt

    Horst997tt Karting

    Jun 4, 2017
    107
    #47 Horst997tt, Jun 8, 2017
    Last edited by a moderator: Sep 7, 2017
    Yes I like my 488 GTB, but there is room for improvements:

    Today I made some measurements, someone in forum wanted to know how
    fast 488 GTB is 0-60 mph without LC : I measured in auto race mode : 0-60 mph: 3.4 s
    and 0- 100 mph 6.7 s , relatively slow time, but car has hit at about 98 mph
    rev limiter in 4 th gear, this is surely software default, in auto mode should no rev limiter hit,
    Only some tenths of one second rev limiter hits, but you can feel and hear it. With TC off or ESC off
    or manual mode no improvements, worst time with ESC off at 0-60 mph ( 3.7s)

    Some general information: curb weight of my 488 GTB is about 1550 kg, my weight 85 kg,
    tank full.
    Good flat road, startline is a signed delineators. Grippy asphalt, best result I reached was 991.1 turbo S with
    3.0 s 0-100 kph in LC mode.
    Temperature today 20 degree Celsius.
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  23. Horst997tt

    Horst997tt Karting

    Jun 4, 2017
    107
    #48 Horst997tt, Jun 8, 2017
    Last edited by a moderator: Sep 7, 2017
    In LC mode today was 0-60 mph 3.2 s and 0-100 mph 6.2s.
    That is ok.

    60-100 mph in 3.0 s is very good time, engine has surely spec power
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  24. Horst997tt

    Horst997tt Karting

    Jun 4, 2017
    107
    #49 Horst997tt, Jun 8, 2017
    Last edited by a moderator: Sep 7, 2017
    Then switched back GPS Performance Box to kph and measured again in LC:
    100-200 kph in 5.6 s is good, 2.7 s 160-200 kph very good, my best reached was
    5.4 s at 10 degrees Celsius ambient temperature
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  25. ForeverCar

    ForeverCar Formula Junior

    Jan 20, 2017
    307
    Thank you for sharing great data with us. 1550kg is nice to know.
     

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