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Thread: Compression ratios

  1. #31
    Join Date
    Apr 2010
    Location
    Denver, CO
    Age
    33
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    627
    Quote Originally Posted by SC Cheesehead View Post
    Sounds like you could be a candidate for an Eaton swap...
    As much as I'd LOVE to do an eaton swap I just don't have the patience to source a bunch of used parts to make it work.

    2003 MARAUDER
    Lidio Tune
    JLT Intake
    Aero Turbine 2525 mufflers
    No 2nd cats
    Resonator Delete Tips
    NGK TR6 Plugs
    180* T-stat

  2. #32
    Join Date
    Oct 2008
    Location
    Ocala, florida
    Age
    37
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    5,060
    Quote Originally Posted by MMarauder03 View Post
    The pros and cons betwe en air to air and water to air? Sounds like it holds up way better than I expected under boost. What pulley size is 12#s on that setup?
    Air to air is a way simpler setup, and you don't have to worry about a pump going bad
    The bad is if you do long extensive burnouts the intake temp will rise incredibly quick.
    I ran a 3.33 pulley and spun the engine to 6500rpms.

  3. #33
    Join Date
    Apr 2010
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    Denver, CO
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    33
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    627
    Quote Originally Posted by LANDY View Post
    Air to air is a way simpler setup, and you don't have to worry about a pump going bad
    The bad is if you do long extensive burnouts the intake temp will rise incredibly quick.
    I ran a 3.33 pulley and spun the engine to 6500rpms.
    What do you set your 1-2 and 2-3 shifts at? My burnouts aren't that long and extensive. I know when I get my point across . Sounds like I'd want an air to air setup with the 3.33 pulley just to be safe. Now basically the only downside of the air setup is obviously always have to have airflow otherwise i'll burn right up.

    2003 MARAUDER
    Lidio Tune
    JLT Intake
    Aero Turbine 2525 mufflers
    No 2nd cats
    Resonator Delete Tips
    NGK TR6 Plugs
    180* T-stat

  4. #34
    Join Date
    Jan 2006
    Location
    Edmonton, AB
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    44
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    393
    Quote Originally Posted by MMarauder03 View Post
    Good to know. i was going to go with DR's vortech or paxton kit. I'm leaning towards paxton right now. Anybody running a centri style setup around here want to help me out. I want to make good power but not risk integrity of my stock motor
    If you're going centri, keep the CR high. They don't spike the dynamic compression at low RPM boost like a PD blower does, so you can get away with more compression. Use flat top pistons and call it a day.


    Quote Originally Posted by ImpalaSlayer View Post
    i bet you will have an aluminator and will be wondering why the hell the stock one wont blow up lol
    That's what happened with me, the transmission gave up before the engine did.
    Keith,

    03 Marauder

  5. #35
    Join Date
    Apr 2010
    Location
    Denver, CO
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    33
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    627
    Quote Originally Posted by 99SVT View Post
    If you're going centri, keep the CR high. They don't spike the dynamic compression at low RPM boost like a PD blower does, so you can get away with more compression. Use flat top pistons and call it a day.




    That's what happened with me, the transmission gave up before the engine did.
    I already built my transmission

    2003 MARAUDER
    Lidio Tune
    JLT Intake
    Aero Turbine 2525 mufflers
    No 2nd cats
    Resonator Delete Tips
    NGK TR6 Plugs
    180* T-stat

  6. #36
    Join Date
    Nov 2007
    Location
    NorCal
    Age
    50
    Posts
    3,209
    High CR Aluminator + Vortech T-Trim would be my vote. BTW, I went 10:1.
    2003 Mercury Marauder 300A
    FRPP BOSS50 Block w/MMR 900S Stroker 5.3L DOHC 324ci 10:1cr - (321rwhp/360.5rwtq) - Tuned by AED

    2006 Ford Mustang GT
    FRPP FR3 Handling Pack|FRPP X Pipe w/GTA Exhaust|Steeda CAI|Hurst Shifter
    (289rwhp/307rwtq)

    2003 Chevrolet Suburban 2500 LQ4 6.0L LT 4WD
    Cognito leveling Kit, Fox 2.0, BFG KOA2 Radial All Terrains, Magnaflow, K&N and 4.10 gears

  7. #37
    Join Date
    Apr 2010
    Location
    Denver, CO
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    33
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    627
    I decided eaton swap it is, where do I start??I know I need the eaton M112 blower, lower intake manifold, intake plenum, kenne bell boost-a-pump, ford gt supercar fuel pump, 39# injectors, handheld tuner, coolant reservoir relocation, move my battery, custom brackets (anybody in the know on who here can make 'em? If not I can fabricate my own, modify my coolant crossover tube 1 inch lower to clear snout and pulley, intercooler (which one? if not custom piping with a IC from frozenboost.com) IC pump and custom bracket to mount it. Anything else guys?

    2003 MARAUDER
    Lidio Tune
    JLT Intake
    Aero Turbine 2525 mufflers
    No 2nd cats
    Resonator Delete Tips
    NGK TR6 Plugs
    180* T-stat

  8. #38
    Join Date
    Apr 2004
    Location
    Greenville, SC
    Posts
    22,513
    Quote Originally Posted by MMarauder03 View Post
    I decided eaton swap it is, where do I start??I know I need the eaton M112 blower, lower intake manifold, intake plenum, kenne bell boost-a-pump, ford gt supercar fuel pump, 39# injectors, handheld tuner, coolant reservoir relocation, move my battery, custom brackets (anybody in the know on who here can make 'em? If not I can fabricate my own, modify my coolant crossover tube 1 inch lower to clear snout and pulley, intercooler (which one? if not custom piping with a IC from frozenboost.com) IC pump and custom bracket to mount it. Anything else guys?

    PM gortch for the brackets
    http://www.mercurymarauder.net/forum...ad.php?t=54151

    I highly recommend the Frozenboost Type 100 IC heat exchanger, you won't be disappointed with it.

    PM me with your e-mail address and I can send you some info on parts needed, approx pricing, etc.

    2003 300B DBP
    Build date: 6/19/03
    Number 7,792 of 7,838 - 326 of 328
    Proud member of the MM "BLUES" Bros.
    Purchased: 11/10/05
    Eaton swap by ImpalaSlayer 11-09-10

    Semper et in Aeternum, Mercurius.

    In Memory:
    2004 DTR
    Build Date 01/27/04
    Purchased 04/04/04
    Wrecked 10/19/05, R.I.P.



  9. #39
    Join Date
    Oct 2010
    Location
    Minneapolis
    Posts
    1,052
    Quote Originally Posted by RacerX View Post
    I would get a forged shortblock from a well known builder before I'd ever drop the coin for an aluminator. Btw, my original block with 130+k on it still has the original crosshatch on the cylinder walls!
    I saw the crosshatch on a crown vic cab motor that we were taking the pi heads off... thing had over 300k on it and still had the crosshatch hone marks. Mod motors will run forever if you leave them alone. But that's not fun.
    3 mod motor vehicles
    2 32v
    1 marauder.

  10. #40
    Join Date
    Aug 2018
    Location
    Indianapolis
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    41
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    93
    for people staying N/A is 10-1 the max?

  11. #41
    Join Date
    Mar 2004
    Location
    Baltimore, Md.
    Age
    64
    Posts
    11,665
    My N/A engine build checked in at approximately 10.5:1
    Just need a good tune to avoid any detonation.
    What's amazing to me is that multiple companies put blowers on stock 12.0:1 Coyotes and offer a warranty....
    Last edited by Joe Walsh; 12-10-2018 at 01:38 PM.
    2020 Ford Ranger STX DFI Turbo 2.3L 10 speed Auto
    2017 Ford Fusion Sport DFI Twin Turbo 2.7L V6 6 speed Auto (14.000 ET bone stock in 82 degree heat)
    1985 Mustang GT 5.0 Hatchback 4bbl 5 speed manual (525 HP 363 Dart block/AFR heads with Magnum 6 speed in the works)
    1984 Mustang GT 2.3 Turbo Convertible FI. 5 speed manual
    1966 427 Cobra (ERA) 468 all Aluminum FE 2x4bbl 5 speed manual

    SOLD : 2003 Mercury Marauder FI. 4 speed Auto
    w/Crower Cams & Springs, +1mm SS valves, mild port job on the cylinder heads.
    Extrude honed intake w/PHP spacer.
    Kooks Headers w/2.5" High Flow Cats & X-Pipe, Magnaflow mufflers, OEM tailpipes w/Megs Tips
    B&M Trans cooler w/fan, Level 10 Shift Kit, Art Carr Hughes Deep Sump Trans Pan,
    SVO Rearend Girdle, Redline Gear lube; OEM 3.55s
    'Real Gauges' + matching Trans Temp, Oil Temp, Water Temp, Fuel Pressure, Vacuum/Boost Gauge
    Built: 10/15/02 Bought: 12/16/02 Sold: 10/15/18

  12. #42
    Join Date
    Jul 2002
    Location
    Marietta, GA
    Age
    88
    Posts
    540
    I ran a Trilogy @ 425 RWHP for over 50000 with 10 to 1, new owner put another 20K without any problems. Don't know who has the vehicle now, it was on Streetside Classics last time I looked, haven't heard anyone new as owner yet.
    Bill
    03 Mercury Marauder, 300A
    SOLD
    2005 Lincoln Town Car, ADTR Supercharger, TCE Brake Lines, MO's Tune
    2022 Lincoln Aviator Reserve AWD

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