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. ;)

2G Dirt track build

Posted by jrloarr, Jun 5, 2019

Please Support ExtremePSI
Please Support VR-Speed Factory
  1. jrloarr

    jrloarr Probationary Member

    10
    0
    Joined Jun 5, 2019
    Berkeley Spgs, West Virginia
    I currently have a 99 eclipse with a non turbo 4G63 in it The help I am looking for is how to get as much HP under the hood as a NA engine. Need it to appear stock so with all of the knowledge you guys have I though someone would be willing to stick a parts list together that would make the most HP

    I was thinking head swap to a 2.4, is that possible? stroker? any ideas that will work together would be greatly appreciated....
     
  2. ThunderChild

    ThunderChild Supporting VIP

    2,543
    720
    Joined Jan 5, 2012
    Rathdrum, Idaho
    2.4 dohc hybrid would be the best bet. As for breathing upgrades, like cams, header/exhaust/intake manifold, it'll depend on where you need the power and governing rules. If you have to be stock appearing, does that mean no aftermarket headers or intake manifolds? If so, a 2g head/manifold and best stock up exhaust manifold/header with a set of 264/272 cams with some gears to tweak things would be my thought. Compression is also going to be helpful as long as it doesn't limit you to exotic fuels or break the rules. Obviously some form of engine management will be highly beneficial, stock ECU parameters aren't going to cut it.

    Give us some more info about most important RPM ranges, rules and budget.
     

    Street Build 342  3

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

    432  8

    1987 Toyota Pickup/Hilux
    awd · manual · Misc Vehicles

    Street Build 958  7

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

    Street Build 1K  1

    1992 Eagle Talon TSi AWD
    manual · 1G DSM

    Street Build 2K  10

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

    motomattx Proven Member

    2,148
    798
    Joined Dec 9, 2010
    wampum, Pennsylvania
    The 99' did not come with a 4g63 nt, so did someone swap one in? or is it a 420a?
     

    Drag Race Build 3K  24

    1995 Mitsubishi Eclipse GST
    fwd · manual · 2G DSM
    Loading...
  4. silvreclips

    silvreclips Proven Member

    1,084
    263
    Joined Jul 19, 2005
    Greenville, South Carolina
    The European models did. But the OP's location says US and that would be a 420a
     

    Autocross Build 304  1

    1998 Mitsubishi Eclipse N/T
    fwd · manual · 2G DSM
    Loading...
  5. jrloarr

    jrloarr Probationary Member

    10
    0
    Joined Jun 5, 2019
    Berkeley Spgs, West Virginia
    It is a swapped in 4G63.
    Budget. Would like to stay under $5k
    My general Knolidge about mechanics, I’m a double ASE master.
    What I can and can’t get away with, I have what appears to be a header (not sure of brand) that would be stock so it’s one the car and not questioned. It has an intake that looks to me to have been replaced so I’m guessing it may not be stock also. But by the rules the exhaust, and induction system must remain stock.

    If this was a GM product I could build it in my sleep. We run superlate models at these same tracks.

    I got this car mostly built and thought it had great potential because the way the suspension works on them. Now I’m being told by the eCotech guys that it was a waste of my money because it will never compete with them. So I’m out to prove them wrong. That’s what brought me to this site. The only tec inspection done in this class is visual so I can get away with anything I can make look stock.

    Why would I cheat you may ask? Well it’s simple. The top 10 cars week in and week out run 2.4 eCotec internals in a 2.0 block. This, making them a 2.4 that NEVER came in a cavalier. So the only way I see to equalize the field is to do what they do.

    Hope I didn’t jump around tooooo much.
     
  6. jrloarr

    jrloarr Probationary Member

    10
    0
    Joined Jun 5, 2019
    Berkeley Spgs, West Virginia
    I forgot to add. RPM range. We run 3rd gear to the rev limiter, feather a little threw the turn then to the limiter again and repeat for 15 Laps. You are basically at the limit for 15 laps.
     
  7. jrloarr

    jrloarr Probationary Member

    10
    0
    Joined Jun 5, 2019
    Berkeley Spgs, West Virginia
    4FBEAD93-75D4-454C-B68F-E5049CCEF5FF.jpeg B08C2C6F-C83E-4D3B-A2CA-D57EBB5B9160.jpeg 08EECC7E-6D9D-4F9A-A393-F01730992268.jpeg
     
  8. silvreclips

    silvreclips Proven Member

    1,084
    263
    Joined Jul 19, 2005
    Greenville, South Carolina
    That looks like a gst that someone removed the turbo from.
     

    Autocross Build 304  1

    1998 Mitsubishi Eclipse N/T
    fwd · manual · 2G DSM
    Loading...
  9. jrloarr

    jrloarr Probationary Member

    10
    0
    Joined Jun 5, 2019
    Berkeley Spgs, West Virginia
    That is my guess as well. But I’m sure the cams are not from the turbo. It was an asphault circle track car and was told it took first place often.

    I would greatly appreciate it if you guys could help me get to the front on a dirt circle.
    Not that it matters but who ever actually contributes to the success I will make a thanks to list on the car and add your user names to give you all some kind of credit along with thanks to dsmtuners.com.

    How can I tell if it may already have a 2.4 block.
     
  10. ThunderChild

    ThunderChild Supporting VIP

    2,543
    720
    Joined Jan 5, 2012
    Rathdrum, Idaho
    There is a flat pads toward the front of the block, on top of the balance shaft hump, left of the alternator. It will have the engine code on it.

    93912602.png

    I'm inclined to agree with @silvreclips that it's a GST with the turbo removed.

    I'd still say do a 2.4, 2g head, stock or AMG Galant intake manifold (if you could find it, I believe they were a 2g port), around 11-11.5:1 compression, and some decent cams, 272s maybe. If you can swing cam gears under the stock cover that would help wring the last bit out of it, as well as let you adjust the power band peak and area under the curve.
    Stock style header might be all you can do, but once again, some form of tuning is the best bet to take advantage of the mods

    I'm sure some other ppl with more experience can narrow down the details to help out better than myself.
     

    Street Build 342  3

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

    432  8

    1987 Toyota Pickup/Hilux
    awd · manual · Misc Vehicles

    Street Build 958  7

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

    Street Build 1K  1

    1992 Eagle Talon TSi AWD
    manual · 1G DSM

    Street Build 2K  10

    1992 Eagle Talon TSi AWD
    awd · manual · 1G DSM
    Loading...
  11. jrloarr

    jrloarr Probationary Member

    10
    0
    Joined Jun 5, 2019
    Berkeley Spgs, West Virginia
    It’s says
    4G63
    0259

    So it is for sure a 2.0. Thanks for that info.
     
  12. motomattx

    motomattx Proven Member

    2,148
    798
    Joined Dec 9, 2010
    wampum, Pennsylvania
    I would run a 1g big port head on a 2.4l block, n/t cams from a 1g, 2.4l injectors and fuel pressure regulator, no thermostat and engine ice with de-ionized water and a flashed black box ecu with a timing curve that will allow combustion chamber cooling at higher rpm's.
     

    Drag Race Build 3K  24

    1995 Mitsubishi Eclipse GST
    fwd · manual · 2G DSM
    Loading...
  13. jrloarr

    jrloarr Probationary Member

    10
    0
    Joined Jun 5, 2019
    Berkeley Spgs, West Virginia
    Ok. Here is a question for you guys. Would someone be interested in building me the baddest N/T engine with all these parts? I’m going to do the 2.4. And around 12:1 CR. I can sneak about 50% VP late model fuel in it so detonation shouldn’t be a problem at all.

    I would actually like to install a stroker kit and make it all it can be at the same time.
     
    Last edited: Jun 5, 2019
  14. ThunderChild

    ThunderChild Supporting VIP

    2,543
    720
    Joined Jan 5, 2012
    Rathdrum, Idaho
    If paying someone to do it, you're talking a pricey motor, like 10k+ probably to do it right and have someone put their name on it/stand behind it.

    Idk if there are any stroker kits for the 2.4, and I doubt there'd be a good enough gain for the extra .2l displacement the extra cost and work it would take.

    Stick with a well built 2.4 and keep it simple, you'll be better off and happier.
     

    Street Build 342  3

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

    432  8

    1987 Toyota Pickup/Hilux
    awd · manual · Misc Vehicles

    Street Build 958  7

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

    Street Build 1K  1

    1992 Eagle Talon TSi AWD
    manual · 1G DSM

    Street Build 2K  10

    1992 Eagle Talon TSi AWD
    awd · manual · 1G DSM
    Loading...
  15. motomattx

    motomattx Proven Member

    2,148
    798
    Joined Dec 9, 2010
    wampum, Pennsylvania
    The 2.4 block IS the stroker, just grab a 2.4 tall deck block out of a Spyder or Galant, etc from your same generation and build it up with quality forged parts.
     

    Drag Race Build 3K  24

    1995 Mitsubishi Eclipse GST
    fwd · manual · 2G DSM
    Loading...
  16. jrloarr

    jrloarr Probationary Member

    10
    0
    Joined Jun 5, 2019
    Berkeley Spgs, West Virginia
    I have an update on my build and would like a little more input. what I ended up going with is a 4g64 block 102mm Brian Crower stroker kit. And a 1G head decked out by Buschur. My question is can I go with an Evo 2G intake manifold and port it large enough for the head (if you can?)or should I stick with a 1G eclipse? Or is there a better option for a factory look? Mid to high rpm power.
     
    Last edited: Jan 4, 2020

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