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Plugzit's 348 8tb Dyno Poll!

Discussion in '348/355' started by No Doubt, Jan 12, 2007.

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How many SAE hp Will Plugzit's Final Dyno Show (after the 8 tb mod to his 348)?

  1. Loses 20 hp - Shows 280 hp at the crank

  2. No change - Shows stock 300 hp at the crank

  3. Gains 20 hp - Shows 320 hp at the crank

  4. Gains 21 to 50 hp - Shows 321 to 350 hp at the crank

  5. Gains 51 to 100 hp - Shows 351 to 400 hp at the crank

  6. Gains 100+ hp - Shows 400+ hp at the crank

Multiple votes are allowed.
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  1. No Doubt

    No Doubt Seven Time F1 World Champ

    May 21, 2005
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    Mr. Sideways
    #1 No Doubt, Jan 12, 2007
    OK, this is a public poll, so your name will show up with your guess...and those who have made wise-cracks but who don't make a choice in this poll are going to get razzed!
     
  2. No Doubt

    No Doubt Seven Time F1 World Champ

    May 21, 2005
    72,740
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    Mr. Sideways
    #2 No Doubt, Jan 12, 2007
  3. PAP 348

    PAP 348 Ten Time F1 World Champ
    Lifetime Rossa Owner

    Dec 10, 2005
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    Pap
    #3 PAP 348, Jan 13, 2007
    All that was changed were the throttlebodies and ECU? Yes? :)
     
  4. No Doubt

    No Doubt Seven Time F1 World Champ

    May 21, 2005
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    Mr. Sideways
    #4 No Doubt, Jan 13, 2007
    The 2 stock 348 tb's were replaced with 8 stock 355 tb's, and the chips inside the Motronic 2.5 ECUs are being changed as the project progresses.

    No other mods are being added to the car at this time.
     
  5. PAP 348

    PAP 348 Ten Time F1 World Champ
    Lifetime Rossa Owner

    Dec 10, 2005
    100,224
    Mount Isa, Australia
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    Pap
    #5 PAP 348, Jan 13, 2007

    Cool, I thought so. :) I will vote now. :)
     
  6. vvassallo

    vvassallo F1 Veteran

    Aug 4, 2006
    8,329
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    Vince V
    #6 vvassallo, Jan 13, 2007
    I have been trying to calculate this based on interpolated data - big words, eh? My logic is that a gain of at least 50 Hp should be achievable thru the larger tbs, chip and increased fuel pressure (I think it will be necessary to increase fp using a regulator and not a higher capacity fuel pump, although that is certainly a possibility). My hope is that 400Hp is reached, but I think it is a testament to the 348 and the Stooges if the car "only" reaches 350 crank Hp.

    Doubtful? Here's an analogy. BWM's E36 M3 came to us in 1995 with a 240 Hp motor at about 6800 rpm. Dinan and Comforti chipped it to produce up to 19 more (increasing the redline to 7200 rpm). Adding a larger tb, higher fuel pressure regulator and Borla exhaust brought mine to 270 Hp. The Euro version had 286 Hp due to its 6 tbs and slightly higher red line (7200 rpm). The stock engine saw 46 Hp coming from the Euro tbs and the US version got 30 Hp from chipping, a larger single tb, higher fuel pressure and an exhaust upgrade. It seems to me that finding 50 Hp in the 348 engine by doing all these things is completely believable.

    Good luck!
     
  7. mk e

    mk e F1 World Champ

    Oct 31, 2003
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    Help me get this thing finished! https://gofund.me/39def36c
    #7 mk e, Jan 13, 2007
    What brand dyno will it be run on and what drivetrain loss factor will be used to calculate the crank hp? Also, what will the redline be set at? Stock exhaust?
     
  8. speedy_sam

    speedy_sam F1 Veteran

    Jul 13, 2004
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    Sameer
    #8 speedy_sam, Jan 13, 2007
    21-50hp
     
  9. ernie

    ernie Two Time F1 World Champ
    Lifetime Rossa Owner

    Nov 19, 2001
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    The Bad Guy
    #9 ernie, Jan 13, 2007
    51-100

    That is once all the bugs have been worked out.
     

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