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Thread: Supercharger with flat top pistons?

  1. #1
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    Supercharger with flat top pistons?

    Curious if it's possible and practical to put any type of supercharger on a motor with flat tops. I know what online calculators say, but has anyone done it? The stock pistons have barely any dish and i see guys run eatons on them all day. I have 99 cobra cams, which has to help with dynamic compression, so im wondering if i can get away with 6 psi or so. I always use 93 octane. Let me know your experiences.
    2003 Marauder 300A
    #2928 of 7838
    Build date: 8/6/02
    Ship date: 5/28/03
    14.33 @ 96.82 with OLD engine
    6R80 swap in progress

    1968 Chevelle
    NA/Pump Gas 10.4 @ 128 mph
    416/4L85E LSA Supercharged build underway

  2. #2
    Join Date
    Nov 2009
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    I ran 12psi with flat tops. True flat tops, not the stock 3cc micro dish as per the Rauder. On the rich side with safe spark tables though.
    If you don't plan on a lot of boost, that's a good combo and very streetable.

  3. #3
    Join Date
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    South NJ
    Posts
    459
    Which blower did you use?
    2003 Marauder 300A
    #2928 of 7838
    Build date: 8/6/02
    Ship date: 5/28/03
    14.33 @ 96.82 with OLD engine
    6R80 swap in progress

    1968 Chevelle
    NA/Pump Gas 10.4 @ 128 mph
    416/4L85E LSA Supercharged build underway

  4. #4
    Join Date
    Nov 2009
    Location
    NH
    Age
    56
    Posts
    177
    It was with a ported M112

  5. #5
    Join Date
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    South NJ
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    Quote Originally Posted by justgod View Post
    It was with a ported M112
    Intercooled i assume? What size pulley did u use to get 12 psi? Did you ever run it at a dragstrip?
    2003 Marauder 300A
    #2928 of 7838
    Build date: 8/6/02
    Ship date: 5/28/03
    14.33 @ 96.82 with OLD engine
    6R80 swap in progress

    1968 Chevelle
    NA/Pump Gas 10.4 @ 128 mph
    416/4L85E LSA Supercharged build underway

  6. #6
    Join Date
    Jul 2004
    Location
    The Dirty South
    Age
    52
    Posts
    3,836
    13.5psi on a 100% stock motor for years without one problem.

    3.0 upper/ stock lower

  7. #7
    Join Date
    Jan 2016
    Location
    South NJ
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    Quote Originally Posted by musclemerc View Post
    13.5psi on a 100% stock motor for years without one problem.

    3.0 upper/ stock lower
    Which supercharger?

    Damn i was just thinking of 6-8 psi max on maybe a P1SC down the road...
    2003 Marauder 300A
    #2928 of 7838
    Build date: 8/6/02
    Ship date: 5/28/03
    14.33 @ 96.82 with OLD engine
    6R80 swap in progress

    1968 Chevelle
    NA/Pump Gas 10.4 @ 128 mph
    416/4L85E LSA Supercharged build underway

  8. #8
    Join Date
    Jul 2004
    Location
    The Dirty South
    Age
    52
    Posts
    3,836
    Trilogy M112

    6psi will only make you want more

  9. #9
    Join Date
    Nov 2009
    Location
    NH
    Age
    56
    Posts
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    Quote Originally Posted by 376shovel View Post
    Intercooled i assume? What size pulley did u use to get 12 psi? Did you ever run it at a dragstrip?
    Stock 03/04 Cobra intercooler/heat exchanger (if you up the boost, the heat exchanger really needs to be upgraded).
    Stock upper and a 4lb lower. Yes to the 1320. I believe it was mid 12's on Nitto NT555s

    Quote Originally Posted by musclemerc View Post
    Trilogy M112

    6psi will only make you want more
    How true!!!

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