TODA TAKE Spec 355 rebuild | Page 5 | FerrariChat

TODA TAKE Spec 355 rebuild

Discussion in '348/355' started by Future ferrari collector, Sep 9, 2020.

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  1. ShineKen

    ShineKen Two Time F1 World Champ
    Silver Subscribed

    Aug 3, 2007
    20,161
    Southern California
    Full Name:
    Nostradamus
    More power to ya… literally ;).

    Unfortunately, in California, unless you live near Newport Beach, 91 pump is our highest grade conveniently accessible. Not sure what that translates to UK fuel grade.

    A Lotus Exige engine builder advised I could go as high as 12:1 on 91, but an engine rebuild was only $5k at the time. I would’ve went for it had I kept the car.

    Mid 11’s is highest I would consider for a California driven 355. I think 12 is ok for 93 pump.
     
  2. SteveRielly

    SteveRielly Rookie

    Aug 19, 2024
    44
    Full Name:
    Steve Rielly
    US 91 is about our 95, so I would think US 93 is very close to our 98.
     
  3. SteveRielly

    SteveRielly Rookie

    Aug 19, 2024
    44
    Full Name:
    Steve Rielly
    Yep, that's why I would go for the full noise Matsu engine, which has cams, timing, fueling etc to get that 500Hp
     
  4. lemon355

    lemon355 Formula Junior

    Aug 8, 2009
    269
    Melbourne Australia
    Full Name:
    Peter Kay
    Do we have any any updates on this TODA "Take" spec build?

    Been almost 5 + years since the OP made his original post..

    Anyone know if the owner is still "living the dream..?";)
     
  5. lemon355

    lemon355 Formula Junior

    Aug 8, 2009
    269
    Melbourne Australia
    Full Name:
    Peter Kay
    #105 lemon355, Oct 22, 2025 at 7:48 PM
    Last edited: Oct 22, 2025 at 8:01 PM
    So I have been doing some thinking..

    We are all aware of the power differences between the 5.2 and 2.7 cars.
    From factory the 2.7 cars have were about 5-10% more power than the 5.2 cars.. ( see video @ 20min onwars)



    The Air intake on the 5.2 (single MAF) results in a staggering 58% reduction Intake airflow than the 2.7.(see video)
    Plus the 5.2 car has smaller injectors than the 2.7 car.. 2.7 (267.0 cc/min) vs 5.2 (240.7 cc/min)

    So why am I bringing this up..?

    TODA claims its "UME" spec kit can be used with the OEM injectors and ECU.
    This might be do-able with the 2.7 injectors, but when you crunch the numbers with the OEM 5.2 injectors ( 3.4bar, 85% DC) it doesn't seem feasible.?!

    And since you can't get bigger OEM injectors for the 5.2 car, this means that even if you wanted to the "UME" spec offering will not work in your vehicle.?!

    So does anyone if the advertised TODA HP figures were derived via testing in a in a 5.2 or 2.7 engine.? (ie- what air intake/injectors did they use..?)
     
  6. lemon355

    lemon355 Formula Junior

    Aug 8, 2009
    269
    Melbourne Australia
    Full Name:
    Peter Kay
  7. bobzdar

    bobzdar F1 Veteran

    Sep 22, 2008
    6,945
    Richmond
    Full Name:
    Pete
    That says they're stock replacements, maybe rated at a different pressure?

    But yeah, larger injectors should do the trick if the stock 5.2s are marginal. Maybe 360 injectors? They look the same, not sure what they're rated at.
     
  8. lemon355

    lemon355 Formula Junior

    Aug 8, 2009
    269
    Melbourne Australia
    Full Name:
    Peter Kay
    #108 lemon355, Oct 22, 2025 at 8:30 PM
    Last edited: Oct 22, 2025 at 8:40 PM
    My understanding is that larger OEM injectors for the F355 do not exist..
    You can get larger aftermarket injectors but they wont work with the OEM ECU.

    Is this statement correct..?

    So what is the normal operating fuel pressure for a F355?

    And are the below flow rates for the OEM injectors measured at this pressure ..?
    2.7 = (267.0 cc/min)
    5.2 = (240.7 cc/min)


    And do both the 2.7 and 5.2 cars run the same baseline fuel pressure..?
     

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