How many 458 Italias with original ecu and exhaust crackles? | Page 14 | FerrariChat
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How many 458 Italias with original ecu and exhaust crackles?

Discussion in '458 Italia/488/F8' started by 458trofeo, Feb 2, 2017.

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  1. Eilig

    Eilig F1 Rookie
    Rossa Subscribed

    Aug 31, 2001
    4,131
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    Tänzelndes Pferd
    #326 Eilig, Mar 2, 2017
    :) :) If your tune produces the desired effect, your driveway will look like this for quite a while in the foreseeable future, as customer cars flow in and out for the tune!! :)
     
  2. OpenFlash Performance

    OpenFlash Performance Karting

    Mar 3, 2016
    190
    SF Bay, CA
    Full Name:
    Shiv Pathak
    #327 OpenFlash Performance, Mar 2, 2017
    Last edited: Mar 2, 2017
    Great. My neighbors must already think I'm a drug kingpin ;)
    Managed to define all the necessary tables in rhe calibration last night and with the exception of some minor changes in the throttle tables, Mike's 2013 Spider stock mapping looks to be identical to the mapping that was on my stock (but sw updated) 2010 coupe. So the results of my tuning work should be identical to what I saw in my car. I should be able to verify this this evening :)

    BTW, first time driving a Spider. What a delightful car! Definitely has more noticeable chassis flex than my coupe. But a top down Ferrari motoring experience is hard to beat. Improving the exhaust sound is going to have a big subjective effect!
     
  3. 458trofeo

    458trofeo F1 Rookie

    Feb 4, 2013
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    #328 458trofeo, Mar 2, 2017
    +458!!
     
  4. Floydison

    Floydison Karting

    Dec 25, 2016
    127
    #329 Floydison, Mar 2, 2017
    OpenFlash - when you change the throttle mapping, are you only doing it in certain driving modes? Or is the throttle map changed across the board?
     
  5. dustman

    dustman F1 World Champ
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    Jun 12, 2007
    11,436
    #330 dustman, Mar 2, 2017
    This is getting good...
     
  6. OpenFlash Performance

    OpenFlash Performance Karting

    Mar 3, 2016
    190
    SF Bay, CA
    Full Name:
    Shiv Pathak
    #331 OpenFlash Performance, Mar 2, 2017
    I can adjust throttle mapping in individual driving modes. The one that needs it the most is the Race/CST mode. In coupes, its way too aggressive all around. With Spiders, it is lazy below 10% applied throttle and then turns on like a light switch at greater pedal angles. Bad like the coupe but just in different ways.
     
  7. OpenFlash Performance

    OpenFlash Performance Karting

    Mar 3, 2016
    190
    SF Bay, CA
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    Shiv Pathak
    #332 OpenFlash Performance, Mar 2, 2017
    Last edited: Mar 2, 2017
    Update: Mikes 2013 Spider has burbles. Behaved exactly like my 2010 :)

    Videos to come...
     
  8. 458trofeo

    458trofeo F1 Rookie

    Feb 4, 2013
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    #333 458trofeo, Mar 2, 2017
    You lurker.. xoxoxo
     
  9. Eilig

    Eilig F1 Rookie
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    #334 Eilig, Mar 2, 2017
    Wooo hoooo!!! Can't wait for the vids!! Congrats in advance! We've been waiting a few years for this!
     
  10. dustman

    dustman F1 World Champ
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    #335 dustman, Mar 3, 2017
    Thinking of flying to SFO to hear in person...
     
  11. Eilig

    Eilig F1 Rookie
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    #336 Eilig, Mar 3, 2017
    .... crickets ....
     
  12. AlfistaPortoghese

    AlfistaPortoghese Moderator
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    Mar 18, 2014
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    Nuno
    #337 AlfistaPortoghese, Mar 3, 2017
    Definately a breakthrough. Warmest congratulations, Shiv!

    Looking forward to the videos. Keep up the good work and thank you.

    Kind regards,

    Nuno.
     
  13. OpenFlash Performance

    OpenFlash Performance Karting

    Mar 3, 2016
    190
    SF Bay, CA
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    Shiv Pathak
    #338 OpenFlash Performance, Mar 3, 2017
    Thanks guys! Mike was nice enough to let me keep the car for an extra day so I can test a few more things. I'll have some video posted later tonight. I'm really happy with how things turned out :)
     
  14. OpenFlash Performance

    OpenFlash Performance Karting

    Mar 3, 2016
    190
    SF Bay, CA
    Full Name:
    Shiv Pathak
    #339 OpenFlash Performance, Mar 3, 2017
    Last edited by a moderator: Sep 7, 2017
  15. 458trofeo

    458trofeo F1 Rookie

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    #340 458trofeo, Mar 4, 2017
    May the burbles be with you LOL!!! :) :)

    PS Watch the typo in '2010-2011' ;)

    xoxoxo
     
  16. Ngcanada

    Ngcanada Formula Junior

    May 16, 2016
    757
    Ottawa Canada
    #341 Ngcanada, Mar 4, 2017
    Just a question, why did you remove the capristo valve controller?
     
  17. Eilig

    Eilig F1 Rookie
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    #342 Eilig, Mar 4, 2017
    Wow, production factor and all..... :)

    Waiting with bated breath... :)
     
  18. OpenFlash Performance

    OpenFlash Performance Karting

    Mar 3, 2016
    190
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    Shiv Pathak
    #343 OpenFlash Performance, Mar 4, 2017
    lol, thanks for catching that :)

    Because, once remapped, the ECU does a better job of controlling the exhaust valves. The Capristo/Forza valve controller is rendered redundant.
     
  19. OpenFlash Performance

    OpenFlash Performance Karting

    Mar 3, 2016
    190
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    Shiv Pathak
    #344 OpenFlash Performance, Mar 4, 2017
    Results on the 2013 were the same as what we documented on my 2010 here: https://youtu.be/Mbye5pgn938

    However, I did play around with the mapping to induce some smaller pops in addition to burble/crackle. Not loud gun shot noises. But still loud enough to hear. The most important thing here is that even newer model year cars are tunable in this respect. I expected as much but it was nice to be able to confirm. I'll try to get the video online tonight.
     
  20. 458trofeo

    458trofeo F1 Rookie

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    #345 458trofeo, Mar 4, 2017
    Dear Shiv,

    Great work and nice overrun, congrats!! :)
    I am sure Mike will be very pleased with his Spider :) :)

    Just 3 questions if I may:

    1. do you have stock cats and headers in the video below?

    https://www.youtube.com/watch?v=Mbye5pgn938&feature=youtu.be

    2. was the video below taken after the video above, as per it
    saying that the car has straight pipes and aftermarket headers?

    https://www.youtube.com/watch?v=A2Yt0HoeQfs

    3. assuming that the answers are yes to both questions above why do you think
    that the overrun sounds similar with both exhaust configurations? From my
    experience and that of other owners of original ecu cars, the overrun should
    sound much louder if stock cats are removed.

    Perhaps you could look into the above for those wanting a little more
    extreme overrun, just a thought. If not possible, then so be it I guess.

    Anyhow, congrats again!!

    Very best
     
  21. dustman

    dustman F1 World Champ
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    #346 dustman, Mar 5, 2017
    Curious why so muted vs your car and other 2010 orig SW cars Carlo?
     
  22. 458trofeo

    458trofeo F1 Rookie

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    #347 458trofeo, Mar 5, 2017
    I reckon professionals like Shiv and Mark can better answer that question.

    Fwiw my car is an April 2010 build which if I understand correctly was
    the first ever month of production for the 458, so I reckon that I am lucky
    to have the very incipient ecu map or the like..

    Perhaps my good friend monacodibaviera can weigh in on this as he
    has the same exhaust setup than me on an original ecu car giving if memory
    serves me well similar 'gunshot' overrun.

    I am sure that in time a tune can be developed that safely induces more
    overrun, for the time being I applaud Shiv's work in succeeding to being
    able to restore overrun sounds to those 458 owners that desire it, and for
    doing so in a responsible and safe way: congrats again! :)

    Very best
     
  23. 458trofeo

    458trofeo F1 Rookie

    Feb 4, 2013
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    101 aki
    #348 458trofeo, Mar 5, 2017
    For comparison on idle non-under load sound difference in crackle volume,
    here are 3 vids of my Italia revving at a standstill, all taken with 100 Aki octane
    fuel which induces more overrun.

    The first is with 100% stock exhaust, the second with stock cats, IPE headers
    and OEM sports mufflers and the third with the mods described previously
    plus 200 cell cats: clearly much more apparent crackles in the last one.

    https://www.youtube.com/watch?v=Gx9Iie7-avQ&list=FLRhBl1VE_bnoioWGW8DTd4A

    https://www.youtube.com/watch?v=FO9PnCWIcHA

    https://www.youtube.com/watch?v=AKycoqlkbNA
     
  24. 458trofeo

    458trofeo F1 Rookie

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    #349 458trofeo, Mar 5, 2017
    Here are comparative sound vids of incipient original ecu taken with a go pro mounted
    outside the car, the first is with 100% stock exhaust which displays overrun which sounds
    similar to the one currently offered in the upcoming aftermarket tune, the second
    video (first minute only) is with IPE headers, 200 cell cats and gem sports mufflers:
    overrun in considerably louder. Ecu was not touched.

    https://www.youtube.com/watch?v=JWc2AdErGco

    https://www.youtube.com/watch?v=UUZu_nuk3iw
     
  25. Eilig

    Eilig F1 Rookie
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    #350 Eilig, Mar 5, 2017
    You are lucky indeed! Mine was born in June 2010!! :) :)
     
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