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Autocross Build Silvr's boosted 420a

Year:
1998
Model/Trim:
Mitsubishi Eclipse N/T
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  1. silvreclips

    silvreclips Proven Member

    1,065
    239
    Joined Jul 19, 2005
    Greenville, South Carolina

    Autocross Build 277  1

    1998 Mitsubishi Eclipse N/T
    fwd · manual · 2G DSM
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    Salty-Seagull and BLACK'98DSM like this.
  2. silvreclips

    silvreclips Proven Member

    1,065
    239
    Joined Jul 19, 2005
    Greenville, South Carolina
    So just a quick back story. I've owned this car since 2005. It was my dd for a about 5 or 6 years, I have been modifying it over the years. I've been auto crossing it once or twice a year for the last 7 or 8 years. A year ago the car had a Holset hy35 on it making decent power. As I got more into autox the turbo had to go, so I swapped it over to a 16g for the quicker spool.

    I ran 8 events this year and ended up in 2nd on SMF. Should have taken first but I missed a few key events that killed me. The season is over now and I'm looking to make some big changes for next season. Upgrading the suspension is going to be the biggest one. I plan to add coil over sleeves and spherical top hats to the illumina struts I already have. No money in the budget for konis this year.

    Here are some pics of how the car sits now.

    IMG_20191101_181710.jpg
    IMG_20191101_181733.jpg
    IMG_20191101_181748.jpg
    IMG_20191101_181759.jpg
    IMG_20190915_125138.jpg
     

    Autocross Build 277  1

    1998 Mitsubishi Eclipse N/T
    fwd · manual · 2G DSM
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  3. BLACK'98DSM

    BLACK'98DSM Proven Member

    1,298
    438
    Joined Feb 9, 2019
    Hoover, Alabama
    Looks great!
     

    Road Race Build 2K  23

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

    492  5

    2012 Murray Explorer Dune
    rwd · automatic · Misc Vehicles

    387  4

    2009 Troy Bilt Bronco
    rwd · automatic · Misc Vehicles
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  4. ec17pse

    ec17pse Freelancer

    3,595
    1,472
    Joined Nov 1, 2008
    London, Europe
    Looking good.

    Is the bov venting into the intake do anything or just happens to be that way by chance.
     

    Road Race Build 9K  10  55

    1997 Mitsubishi Eclipse GST
    175 whp · 180.1 lb/ft · 2G DSM
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  5. silvreclips

    silvreclips Proven Member

    1,065
    239
    Joined Jul 19, 2005
    Greenville, South Carolina
    It just happened that way.

    After working on the car last night. This is how it sits currently.

    Also noticed the struts have been eating the bump stops.

    IMG_20191103_120146.jpg

    IMG_20191102_182851.jpg
     

    Autocross Build 277  1

    1998 Mitsubishi Eclipse N/T
    fwd · manual · 2G DSM
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    BLACK'98DSM and ec17pse like this.
  6. silvreclips

    silvreclips Proven Member

    1,065
    239
    Joined Jul 19, 2005
    Greenville, South Carolina
    I've been doing some work over the last few weeks. Upon further inspection of the suspension, the car has pretty much been sitting on the bump stops for who knows how long. See the pic below with blue mark. That's where the strut sits with the car on the ground. So I had very little travel left in the front suspension. I'm not sure about the back yet. I don't know if it was like this when I out this set up on 12 years ago or if the springs have sagged some over the years.

    IMG_20191116_171734.jpg

    My plan moving forward will be to still put on the spherical upper mounts on this setup, that should raise the car about 1.5 inches and get it off the bump stops. The car also needs tires before next season, so konis are out for now.

    I'm machining all of the parts for the upper hats, so far only the spacers are done. I'll start on the mounts after the holidays. No having a lathe made it a little more difficult to make these, but I managed to make it work with the mill.

    IMG_20191115_164258.jpg IMG_20191115_172524.jpg IMG_20191121_180436.jpg IMG_20191121_200438.jpg
     

    Autocross Build 277  1

    1998 Mitsubishi Eclipse N/T
    fwd · manual · 2G DSM
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  7. dsmcrzy

    dsmcrzy Proven Member

    1,148
    237
    Joined Dec 20, 2009
    Trenton, Ohio
    Glad you started a build thread after all these years. I was always curious what you were running and details on your car.
     

    Street Build 4K  12

    1996 Mitsubishi Eclipse N/T
    fwd · manual · 2G DSM
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  8. silvreclips

    silvreclips Proven Member

    1,065
    239
    Joined Jul 19, 2005
    Greenville, South Carolina
    Even though a full standalone ECU can be a pain sometimes, it does have its benefits when it comes to new features and flexibility. I've never logged ECU data during my autox runs, I started doing that this year and have learned a ton of good information from them. I had this mount 3d printed that screws to the radio bezel and mounts a side holster for my phone. I can view and log any data from the ECU at any time, it allows me to keep an eye on coolant temps better, air temps, etc. It also logs GPS which I can plot in megalogviewer, it makes it easy to compare runs and see which sections I was quicker or slower in.

    IMG_20191207_115139.jpg IMG_20191207_115148.jpg IMG_20191207_115040.jpg IMG_20190827_201936_01.jpg


    I've also always hated the way the pedals are spaced out on this car. It's just about impossible for me to heel toe on downshifts. This is very easy on my BMW where the pedals are closer together. To fix this I pulled the gas pedal out and welded a 1in piece of flat bar to the side of it. I should have done that a long time ago.

    IMG-20190922-WA0000.jpeg IMG_20191207_115028.jpg
     

    Autocross Build 277  1

    1998 Mitsubishi Eclipse N/T
    fwd · manual · 2G DSM
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    BLACK'98DSM, ec17pse and dsmcrzy like this.
  9. ec17pse

    ec17pse Freelancer

    3,595
    1,472
    Joined Nov 1, 2008
    London, Europe
    nice work on the pedal and machine parts. I assume your going to go the koni route since you got the far north spec sheets for building them parts
     

    Road Race Build 9K  10  55

    1997 Mitsubishi Eclipse GST
    175 whp · 180.1 lb/ft · 2G DSM
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    silvreclips likes this.
  10. silvreclips

    silvreclips Proven Member

    1,065
    239
    Joined Jul 19, 2005
    Greenville, South Carolina
    That's the plan, it seems to be the best option out there for what I am looking for. The wife is still in school so the money isint there for the full setup this year. But she graduates this spring so hoping I can complete the suspension next year sometime. But for next season I'll be using the spherical top hats on these tokicos. The car is just way to low the way it sits now so a better working suspension and a decent ride height should be an improvement over this past year.

    I had to machine some new upper spring perches for these springs. I only need to machine the top hats and I should be able to put this together.
     

    Autocross Build 277  1

    1998 Mitsubishi Eclipse N/T
    fwd · manual · 2G DSM
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  11. ec17pse

    ec17pse Freelancer

    3,595
    1,472
    Joined Nov 1, 2008
    London, Europe
    So your pic above with riding on the bumpstops, that dont seem normal so they blown out? Or am i right in assuming your lowering springs are causing you to ride the bump stop most of the time?

    Have you looked into spring type bumpstops? You can use them instead of and also protects the shsft inside and can go against your spring rates if worked out correctly
     

    Road Race Build 9K  10  55

    1997 Mitsubishi Eclipse GST
    175 whp · 180.1 lb/ft · 2G DSM
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  12. silvreclips

    silvreclips Proven Member

    1,065
    239
    Joined Jul 19, 2005
    Greenville, South Carolina
    The struts are not in new condition, they have around 60 or 70k but they don't seem to be shot yet. I can still adjust the shocks and they do change the ride quality. My guess is the springs have sagged over time. Or they were just to damn low to being with and I never noticed.

    I feel like an idiot for racing this car all season and having no idea it was sitting on the bump stops. I would have thought it would have been very noticeable. Maybe it will be a night and day difference once I get this straightened out.
     

    Autocross Build 277  1

    1998 Mitsubishi Eclipse N/T
    fwd · manual · 2G DSM
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  13. silvreclips

    silvreclips Proven Member

    1,065
    239
    Joined Jul 19, 2005
    Greenville, South Carolina
    The spherical bearings for the top hats are in. I've been working on machining the top hats this week. I should finish up the machining on the top side Monday. Then just need to put in the bearing bores and snap ring grooves. It's been a fun project but ready to get this part finished up.

    IMG_20191213_192515.jpg

    IMG_20191213_164529.jpg
     

    Autocross Build 277  1

    1998 Mitsubishi Eclipse N/T
    fwd · manual · 2G DSM
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    dsmcrzy, BLACK'98DSM and GSXbooster like this.
  14. silvreclips

    silvreclips Proven Member

    1,065
    239
    Joined Jul 19, 2005
    Greenville, South Carolina
    I feel like I haven't been making a whole lot of progress this off-season. I finished up the front suspension today, everything came out pretty good. I will try to machine the last few parts for the rear this week.

    I grabbed a 10hz gps over the holidays that I'll be running this season. Hoping to learn something useful from the data.

    IMG_20200112_161021.jpg IMG_20200112_174947.jpg IMG_20200112_175043.jpg
     

    Autocross Build 277  1

    1998 Mitsubishi Eclipse N/T
    fwd · manual · 2G DSM
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  15. tk106

    tk106 Supporting Member

    2,084
    645
    Joined Sep 11, 2017
    Cincinnati, Ohio
    So sick that you can just make a top hat :thumb:
     

    226  3

    2000 Jeep Cherokee Sport - Classic
    awd · automatic · Misc Vehicles

    216  4

    93 Civic 4 Door -sold-
    fwd · manual · Misc Vehicles

    Street Build 2K  6

    1992 Eagle Talon TSi AWD
    12.625 @ 111.42 · 1G DSM
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