I need more horse in my gee gee | FerrariChat

I need more horse in my gee gee

Discussion in '348/355' started by 355newbie, Jun 23, 2006.

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  1. 355newbie

    355newbie Rookie

    Jun 23, 2006
    27
    Someone help pleeeese........

    Just got a 355 F1. Tubi exhaust already fitted.

    What can be done to increase the power ?

    Also how can I check if the car has been chipped or not ?

    Sleepless nights ahead until an answer is revealed :)
     
  2. chaa

    chaa F1 Veteran

    Mar 21, 2003
    5,058
    #2 chaa, Jun 23, 2006
    Last edited by a moderator: Sep 7, 2017
    Get ya car onto a rollin road (dyno) to get a basic idea of what ya cars knocking out first. Alot of owners try to avoid this, thinking that the factory quoted power of 375bhp is RWP its not its at the crank;) My own car has a hamonn chip and a de-cat Capristo, along with K&Ns. Standard 355s are showing about 315-320ish rwp bhp, mine has 328wrp bhp. Which holds more power than a standard 360. There is alot of talk about how to add things to up the power on a 355, but when all is said and done the car has to be dynoed to get the real power figure.
    Another high powerd 35 on here bellongs to Lusso64, who has gone the NAperformance manifold rout along with a tubi and K7Ns and his knocks out about the same ( see last pic)
    Also heres the link. http://www.ferrarichat.com/forum/showthread.php?t=106847&highlight=355+dyno+results
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  3. Ricambi America

    Ricambi America F1 World Champ
    Sponsor Owner

    Test pipes or HyperFlow cats should do the trick.
     
  4. chaa

    chaa F1 Veteran

    Mar 21, 2003
    5,058
    I have test pipes on mine, what kind of gains do hyperflow have over test pipes? How do they work?
     
  5. Ricambi America

    Ricambi America F1 World Champ
    Sponsor Owner

    Hyperflow cats flow about 35%-40% better than OEM cats. It is my understanding that test pipes flow about 5% better than HyperFlow cats.

    I removed the test pipes from my 348 and installed HyperFlow cats. I noticed zero decrease in power, throttle response, or nice sound. Now, I can have my car emissions tested without needing to worry whether it'll pass.
     
  6. Samy

    Samy Formula Junior

    Dec 2, 2005
    603
    How much cspi did the hyperflows have?
    _______________
    Samy
     
  7. Ingenere

    Ingenere F1 Veteran
    Owner Silver Subscribed

    Dec 11, 2001
    6,449
    On the Limit
    Full Name:
    Dino
    355s are really that slow to begin with. The first thing that you have to ask yourself before you start modifying the car is why are you doing it? If you want to go faster.........take a driver's school. If its to be a better drag racer (in other words "go fast/straight line"), you bought the wrong car. Ferrari's are meant to be driven hard on mountain roads and race tracks (road courses), not drag strips.
     
  8. chaa

    chaa F1 Veteran

    Mar 21, 2003
    5,058
    And i do and i also kick the ases of the 360s;) People will always be in the quest of trying to get the most out of there cars no matter what they drive. So what you are saying is that you should stick with the standard exhaust system then??? Becourse all said and done on a 355 its only the exhaust system and filters that you change to get a little more, whats the big deal? No one mentioned straight line dragging until you did;)
    I notice on your profile picture that your 348 has after market wheels on it, why? What was wrong with the standard ones? Was you trying to make your car better than when it was standard?? And if they were stanard, havnt you done anything to your ferraris:D to make them that little bit more special? Do ya see what i mean?
     
  9. ernie

    ernie Two Time F1 World Champ
    Lifetime Rossa Owner

    Nov 19, 2001
    22,614
    The Brickyard
    Full Name:
    The Bad Guy
    If you have the budget are is the bolt on recipe.

    NA performance headers
    Test pipes or Hyper Flow cats
    Free flow muffler like Tubi, Capristio, or X-Ost
    Better breathing air filter like K&N, or BMC
    Better air intake like Gruppe-M

    Then if you like, you can get the throttle bodies ported.

    If you really want to spend some more money pull the heads and have them ported.

    But if you are after some BIG power gains do what F-chatter Ton, from the Aussie section, did to his 355, Twin turbo's. You can read all about it here http://ferrarichat.com/forum/showthread.php?t=29754 If I remember he got something like 800+hp on race gas.

    But I think you would be pretty satisfied with the first five.
     
  10. plugzit

    plugzit F1 Veteran
    Silver Subscribed

    Dec 1, 2004
    7,776
    Redondo Beach, CA
    Full Name:
    Bruce Bogart
    Think about weight. I've heard it takes 15hp to better the 0-60 times by .1 sec. Removing 100lbs. will do the same. Removing weight will improve the cornering as well, something horsepower will not do. No fat chicks. No huge stereo amps with woofers.
     
  11. Ricambi America

    Ricambi America F1 World Champ
    Sponsor Owner

    X-OST shaved about 15 pounds off the butt end of my car. HyperFlow? haven't weighed them, but I would expect a 5-7 pound saving -- at least.
     

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