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General how to explain "tuning" to a beginner

Posted by langelg6, Feb 27, 2020

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  1. langelg6

    langelg6 Proven Member

    42
    13
    Joined Nov 4, 2019
    Hammond, Indiana
    hello I have a 1995 Eagle Talon ESI non turbo, FWD, manual trans.

    I have been researching various types of tuning for the 420a and came to the conclusion megasquirt will be the best option for what my plans are... my next question is where do I find a megasquirt unit for the 420a???? and how much am I looking on a standalone unit to ditch my old ecu.. Also which version would be best and easiest to tune
     
  2. ThunderChild

    ThunderChild Supporting VIP

    2,639
    783
    Joined Jan 5, 2012
    Rathdrum, Idaho
    MS3X, unless you really want ms3pro. Bout 1k gets you essentially everything you need to convert, minus some misc. Sensors and stuff, but that'll allow you to log and tune and account for any future upgrades, inc.: motor swaps, boost, nitrous, etc..
     

    Street Build 402  3

    1990 Plymouth Laser N/T
    fwd · manual · 1G DSM

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    1987 Toyota Pickup/Hilux
    awd · manual · Misc Vehicles

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    1997 Mitsubishi Eclipse Spyder GST
    fwd · manual · 2G DSM

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    1992 Eagle Talon TSi AWD
    manual · 1G DSM

    Street Build 2K  10

    1992 Eagle Talon TSi AWD
    awd · manual · 1G DSM
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  3. silvreclips

    silvreclips Proven Member

    1,115
    299
    Joined Jul 19, 2005
    Greenville, South Carolina
    Diyautotune.com

    They sell everything you need. You will not find a megasquirt for the 420a. Megasquirt is built to handle all different types of engines and can be configured to run on just about anything. I would go with the ms3x. You can buy the kit or get one that is pre assembled. You may have to make a few modifications to make it work with the 420a. DIY can answer any of these questions when you order the unit.

    Since this is a complete stand alone, it comes with no tune installed. You may be able to find a base tune online that you can start with. But you will either have to tune it yourself or pay someone to do it for you. Dyno tuning your entire VE table is not cheap.
     

    Autocross Build 365  1

    1998 Mitsubishi Eclipse N/T
    fwd · manual · 2G DSM
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  4. rabenne

    rabenne Proven Member

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    Joined Apr 21, 2006
    Racine, Wisconsin
    Luis,

    How committed are you to the 420A platform?

    There is no reason you can't build it into something powerful, but this is a good example of the upcoming battle you have. There is not great support of the 420A eclipses. If you are just starting out (limited experience), you will find it easier to modify a 4g63 eclipse. Partly because the aftermarket support is better, but also because there are so many resources available for reference on 4g63 builds. There are some really awesome 420A guys on here, so I suggest you search them out and keep in contact with them.

    Don't let me discourage you, I just wanted you to consider this line of reasoning.

    Best of luck!
     

    Street Build 7K  16

    1995 Eagle Talon TSi
    awd · manual · 2G DSM

    Street Build 388  5

    1996 Mitsubishi Eclipse GSX
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    1997 Mitsubishi Eclipse GST
    fwd · automatic · 2G DSM
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