1. Join the Community!

    DSMtuners is a massive archive of DSM information - but more importantly, it's a COMMUNITY! Join in and participate with other DSMers, and invite all of your DSM friends to make this place their home. Chat with others, create a build thread, post questions and answers. Get involved! Logging in will also remove many of the advertisements, along with this notice. ;)

General how to explain "tuning" to a beginner

Posted by langelg6, Feb 27, 2020

Please Support STM Tuned
Please Support Morrison Fabrication
  1. langelg6

    langelg6 Proven Member

    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

    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

    502  8

    1987 Toyota Pickup/Hilux
    awd · manual · Misc Vehicles

    Street Build 1K  7

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

    1K  0

    1992 Eagle Talon TSi AWD
    manual · 1G DSM

    Street Build 2K  10

    1992 Eagle Talon TSi AWD
    awd · manual · 1G DSM
    1990TSIAWDTALON likes this.
  3. silvreclips

    silvreclips Proven Member

    Joined Jul 19, 2005
    Greenville, South Carolina

    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
    BLACK'98DSM and rabenne like this.
  4. rabenne

    rabenne Proven Member

    Joined Apr 21, 2006
    Racine, Wisconsin

    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
    awd · automatic · 2G DSM

    Street Build 311  12

    1997 Mitsubishi Eclipse GST
    fwd · automatic · 2G DSM
    tk106 and silvreclips like this.

Share This Page

Support Vendors who Support the DSM Community
ECM Tuning ExtremePSI Feal Suspension Fuel Injector Clinic Jacks Transmissions JNZ Tuning Kiggly Racing Morrison Fabrications OHM Racing RixRacing RockAuto SouthBay Fuel Injectors STM Tuned Track Decals Track Sculptures VR Speed Factory