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355 Stacks

Discussion in '348/355' started by Yellow02Z06, Aug 23, 2014.

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  1. Yellow02Z06

    Yellow02Z06 Karting

    Nov 2, 2013
    214
    #1 Yellow02Z06, Aug 23, 2014
    I have a 328 GTS, considering a 355GTS. I note they have a "stack injection" which appears to be buried under a lot of plastic intakes feeding them.

    Has anyone ever stripped that stuff off, made some stacks to stick through engine cover?

    I know that would cause some to shudder, but I think it would be beyond cool...

    Thooughts, knowledge?

    Thanks

    Aaron
     
  2. Dave rocks

    Dave rocks F1 World Champ
    BANNED

    Nov 23, 2012
    16,047
    Orchard Park, NY
    Full Name:
    Dave Lelonek
    #2 Dave rocks, Aug 23, 2014
  3. Yellow02Z06

    Yellow02Z06 Karting

    Nov 2, 2013
    214
    #3 Yellow02Z06, Aug 23, 2014
  4. Mitch Alsup

    Mitch Alsup F1 Veteran

    Nov 4, 2003
    9,741
    #4 Mitch Alsup, Aug 23, 2014
    The Helmholtz resonator covers 4 velocity stacks before flowing into individual throttle bodies. The resonator and velocity stacks are a relative of ABS plastic, and there is no metal inside. So if you strip off the plastic you will end up with a blob of gooey plastic.

    Oh, and btw those pieces of plastic are good for 20 HP over the kind of induction system used in the 348. So tread lightly.
     
  5. bobzdar

    bobzdar F1 Veteran

    Sep 22, 2008
    6,918
    Richmond
    Full Name:
    Pete
    #5 bobzdar, Aug 23, 2014
    I think he meant simply removing the plastic intake boxes and bolting on velocity stacks.

    IMO, for looks only. You'd lose the MAF for part throttle driving, so you'd probably want to run an aftermarket engine management system and spend time on the dyno tuning the engine. Lot of work for maybe a couple HP that you could more easily and cheaply gain elsewhere.
     
  6. Yellow02Z06

    Yellow02Z06 Karting

    Nov 2, 2013
    214
    #6 Yellow02Z06, Aug 24, 2014
    To get the setup Group 77 has has he removed the hemholtz resonator?

    So this is sounding no where near as simple as I had hoped...

    I guess resonator is some air equalization chamber with one MAF?
     
  7. 97 Spider

    97 Spider Formula 3

    Dec 15, 2012
    2,241
    Texas
    Full Name:
    Brian
    #7 97 Spider, Aug 24, 2014
    Yeah, you would probably need to switch to a speed density engine management system and map the whole thing yourself. That would be quite an undertaking for the average guy.
     

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