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Thread: 7g: Best Power Adding Mods + misc. hardware

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  1. #1
    Moderator mko's Avatar
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    7g: Best Power Adding Mods + misc. hardware

    This thread is created to inform and explain what power modifications can be done to a 7g Galant. Please post a short explanation and picture to clarify what the modification improves. Please do no ask questions!!! For more info please check out the tutorial section.

    INTAKE


    Short Ram Intake

    Adapter is needed for the MAS sensor

    Minimal gains. It's located in the hot engine bay.

    Cold Air Intake

    You'll see more gains than short RAM. Easiest way to make is from intercooler pipes or customized from another car.

    Throttle Body

    Galant's stock TB is 48mm. 60mm TB off 1g Eclipse will introduce more air into the engine.

    Since the connectors for idle control are different and Mitsubishi TBs are known for their idle surge, a FIAV block off plate is needed to make your idle nice and smooth.

    EXHAUST


    Headers

    Available off 4g63 1g Eclipse. These are not bolt on to the Galants stock catalytic converter.

    High Flow Catalytic converter

    Available from 2 1/4 to 3'' diameter. Will reduce the pack pressure when turboed. The only con is the it will light up your CEL for rear oxygen sensor.

    Cat Back Exhaust

    Available from 2g Eclipse /exp. AWD/ from 2 1/4 to 3'' diameter. Requires a little extending for perfect fit.


    Turbo Chargers and Components

    Turbo Chargers

    13g

    Available off 1g Eclipse automatic. Cons: 5 cm housing, very, very restrictive. Pros: super quick spool up, full boost at around 2k. The turbo is good for low end power.

    14b

    Available from 1g Eclipse 4g63T with manual transmission nand USDM 6g VR4s. Cons: small 6cm housing, very restrictive. Pros: quick spool up. Turbo is good for low to middle range power.

    16G
    Variations: small 16g , big 16g, super 16g

    Available from JDM 6g VR4, Evo 1-3. Pros: large 7cm housing, less turbo lagging. Turbo is spooled by 2800-3000 rpms. Good for mid range power.

    Aftermarket turbos:

    Gaskets







    Oil Feed Line



    DSM Manifold

    Available from:

    1g Eclipse : 2'' outlet
    2g Eclipse 2 1/4'' oulet

    Evo 3 Manifold

    Available from Evo 3 2.5'' outlet, better flow

    Stainless Steel Tubular Manifold

    Available from Ebay 2.5'' outlet Cons: cracking

    DSM turbo housing

    6cm inlet

    7cm turbo housing

    7cm inlet

    DSM O2 housing

    1g Eclipse 2'' inlet 2'' outlet
    2g Eclipse 2 1/4'' inlet 2 1/4'' outlet

    Evo 3 O2 housing

    Larger inlets and outlet than DSM housings 2.5'' inlet/outlet

    Stainless Steel O2 Housing

    Megan SS Tubular O2 housing outlet: 2.5''

    Open Dump Tubular housing outlet: 2 1/4'' or 2.5''

    SS tubular O2 housing outlet: 2 1/4'' or 2.5''


    Downpipe

    Available from Ebay. Inlet: 2.5 - 3'' Outlet: 2.5 - 3''

    Porting and Polishing

    DSM O2 housing ported to 2.5'' inlet/outlet

    DSM manifold ported to 2.5'' outlet



    DOHC SWAP



    Oil passages needed to be plugged. 4g63 head does not use these.

    Camshafts

    Available from many suppliers and durations: 264, 272, 280, 288. Stock 1g Eclipse with manual transmission are 252/252; with auto transmission - 244/244. 2g Eclipse manual/auto 252/252

    Head Gasket and Bolts



    Timing Belt and Gears

    Either adjustable cam gears or 1994 Galant GS timing gears.

    Unfortunately, there isnt a super strong t-belt for 4g64. Only stock available off 1994 Galant GS

    Valves



    Valve Guides



    Valve springs and Retainers

    OEM upgrade for DOHC - Evo 8 springs and retainers

    Aftermarket



    3rd Gen Lifters



    Valve Stem Seals



    Cyclone Intake Manifold



    Sheet Metal Intake manifold



    Porting and Polishing


    ENGINE


    Pistons





    Connecting Rods



    Crank Shaft



    Bearings and Bolts



    Evo 3 Oil Housing

    Allows to run external oil cooler on 7 bolt block.

    Balance Shaft Kit

    Reduces rotational weight. Engine will rev faster and higher.

    Pulleys

    These reduce rotational weight. Engine will rev faster.


    DRIVETRAIN

    5 Speed Swap

    Transmission off 2g GST or 7g Galant

    Clutch Kits

    Exedy



    Act




    Flywheels

    Fidanza 8 lbs



    Act 12.5 lbs




    Transmission Oil






    Limited Slip Differential

    Full



    Insert




    Full Transmission Rebuild Shepherd Transmissions, Jacks Transmissions, DogBox Transmissions


    AWD conversion Every part comes off 2g GSX


    SUPPORTING MODS

    Intercooler, Pipping, T-Bolt Clamps and Silicone Couplers /Reducers/




    Boost Controller

    Electronic





    Manual




    Blow Off Valve /BOV /




    Fuel Pump and Filter






    Fuel Pressure Regulator /FPR/

    OEM off 2g Eclipse GST or GSX

    Aftermarket






    Injectors

    OEM upgrade

    Blue tops DSM 450cc



    Yellow Tops Evo3 510cc



    Aftermarket: Denso, PRE........ACCEL


    High Speed Fans




    Aluminum Radiator




    Fuel Controllers


    MAFT





    SAFC I, II, Neo

    SAFC II



    Neo




    Stand Alone Engine Controller

    AEM EMS



    Megasquirt





    ECU+

    DSM Link

    more....
    Last edited by mko; 01-13-2010 at 03:23 PM
    God created turbo lag to give the v8's a brief moment of hope.



    Build Thread

  2. #2
    Bow to the brothers

    Thanks for write up
    http://www.gasketer.ecrater.com/
    get you OEM parts with low price

  3. #3
    TGC Regular phizzalot's Avatar
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    NICE MKO don't forget Evoscan/Ecuflash for tuning and evo8 ecu compatibility...
    ---||| 97Galant, E3 16G, Safc, 5spd,Drifter Body |||---

  4. #4
    Hey just wondering if I put some EVO 3 injectors in my 4g63 N/A would I need to upgrade anything else for it to perform properly? Like airflow meter?

    Thanks

  5. #5
    TGC Regular Boosted's Avatar
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    No, not unless you are running an engine management system.

  6. #6
    I need power asap am auto so first step would be go manual?? I got cai, 2.5 full exhaust and no balance shaft still too slow i need sonethign beter and i i plan to go turbo, manual tranny would be a priority right?
    Last edited by Joker96; 05-06-2011 at 11:06 PM

  7. #7
    damn! How did I miss this write up? Good job!


    Lancer/EvolutionX Rotor Glow Paint
    6g74 Forged Engine w/ hx40 turbo
    Eclipse GT 5 spd swapped


    Rotor Glow Galant
    Daily Galant
    OZ Edition Eclipse

  8. #8
    TGC Regular 98mgalant's Avatar
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    Do the headers need to be from specifically a 1g eclipse or will any 4g63 header work?

    Quote Originally Posted by wetamup2k3g View Post
    Oh, and sometimes the fat guy can lay the pipe. Just saying.....

  9. #9
    Moderator mko's Avatar
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    do you know of any other 4g63 N/A cars?
    God created turbo lag to give the v8's a brief moment of hope.



    Build Thread

  10. #10
    TGC Regular 98mgalant's Avatar
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    Idk that's why I asked.lol

    Quote Originally Posted by wetamup2k3g View Post
    Oh, and sometimes the fat guy can lay the pipe. Just saying.....

  11. #11
    TGC Regular eclipsh's Avatar
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    The only way to make much power on a 4 cylinder is to rev it to the moon or go forced induction.

    I'm sure someone has built a destroked NA (naturally aspirated) '64 at this point. That would be the way to get high revs. I'd be trying to hit 10-11k which would require some serious work to the tranny too. The plus side is the tranny is less likely to break so long as the shift forks are tough. NA motors are also very responsive. The downside is that it would be very expensive for not a lot of power.

    Forced induction is the only way to make substantial horsepower. It can also be made relatively cheaply. The downside is it is less responsive than an NA. Some of the same tricks for NA apply to FI engines, ie: cold air intake, larger throttle body, higher flowing exhaust. Turbo engines make more power down low which is hard on gears but easier to shift.

    The information on a limited slip differential is very important for FWD cars. Without one you'll just smoke one tire and not accelerate. The inserts are not recommended by Team Rip Engineering, a specialist in DSM transmissions. The reason is that they wear out your front differential and can cause failures that take out the rest of the transmission. If you plan on staying FWD do it right and go for a clutch or mechanical LSD such as Kaaz or Quaife.
    Last edited by eclipsh; 05-14-2011 at 11:14 AM
    - Nick, 94 Galant ES - 4G64 DOHC Turbo AWD, E3-16G & Manifold, 780cc inj, fmic, DS-MAP Speed Density

    "Ignorance more frequently begets confidence than does knowledge..." - Charles Darwin

  12. #12
    Experienced TGC Member mysticj's Avatar
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    Quote Originally Posted by eclipsh View Post
    The only way to make much power on a 4 cylinder is to rev it to the moon or go forced induction.

    I'm sure someone has built a destroked NA (naturally aspirated) '64 at this point. That would be the way to get high revs. I'd be trying to hit 10-11k which would require some serious work to the tranny too. The plus side is the tranny is less likely to break so long as the shift forks are tough. NA motors are also very responsive. The downside is that it would be very expensive for not a lot of power.
    I'm working on it on the NA part... The long rod combo on the 2.4L is good for 9K rpm just need very good cams with a rapid ramp rates like JUN 272 or Kelford 272, along with a good header and IM combo.

    The information on a limited slip differential is very important for FWD cars. Without one you'll just smoke one tire and not accelerate. The inserts are not recommended by Team Rip Engineering, a specialist in DSM transmissions. The reason is that they wear out your front differential and can cause failures that take out the rest of the transmission. If you plan on staying FWD do it right and go for a clutch or mechanical LSD such as Kaaz or Quaife.
    An Evo I-III Front LSD from Ralliart or FTO LSD but their are hard to find and expensive.
    94 Galant GS: 4G67 head, 1G IM, Evo 8 TB, DeltaCam 272/264 Cams, Test Pipe, OE Avenger V6 60mm catback w/muffler, modified Outlander header, DIY COP setup, B/S delete, 315cc injectors, AEM UEGO WBO2, Black case 3G ECU

    1994 GS FYI
    DSM/CSM Manuals

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