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Project 2G RWD conversion

Posted by gabytech, Jul 14, 2012

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  1. gabytech

    gabytech Proven Member

    394
    10
    Joined Nov 19, 2007
    Daytona, Florida
    undertakerdsmstockchassis1_zpsddd4f555.jpg

    Back in 2011, my project 2G GST was just around the corner of been finished and ready to see action. The build goal at that time was to be the quickest 2G Eclipse GST with drag radials. But been brainstorming an Eclipse RWD conversion in my head for a few years now, the current project took a turn. After long sleepless nights brainstorming, planning, and talking to a few guys who have done 4G63 RWD conversion either DSMs or non-DSMs, decided to give it a go. A lot of performance parts from the original GST build will be used, but a lot of them wont be needed and will be useless. A new game plan was designed and a new performance parts shopping list was started. The project is currently still in the performance parts shopping spree, since a few more parts will be needed before the Eclipse takes the trip to the race car chassis fabrication shop. Valdo Chassis in Puerto Rico will fabricate the engine/trans mounts, front suspension crossmember, rear end, roll cage, and a few other misc. parts. The 2G Eclipse RWD will be a stock chassis racecar shooting to be the quickest DSM with drag radials.

    List of parts at the laboratory:

    8.8in Ford Explorer live axle/disc brakes assembly - WILL NOT USE - Going Strange Engineering 9in. rear end
    Billhousing 4G63/TKO bellhousing
    Summit Racing Drag-Thrust 15x10 rear wheels
    Mickey Thompson 275/60-15 ET Street Radial tires
    Competition Engineering 36in steel wheel tubs
    Competition Engineering parachute mount
    2G 4G63 .040 oversize bore & hone block
    Eagle conrods
    Wiseco HD 3.386 bore pistons
    ARP head & main studs
    Cometic head gasket
    1G 4G63 cyl. head
    Magnus v3 cast intake manifold
    Frontline Fabrication CNC cyl. head
    CXRacing intercooler mounting bar
    Frontline Fabrication CNC -16AN cooling parts
    Jay Racing alternator relocation kit
    1G external oil cooler filter housing
    Aeromotive A1000 fuel press. reg.
    Aeromotive fuel rail
    Sparco Sprint 5 racing seats
    Autometer Phantom gauges
    OEM 99 black dashboard
    OEM 99 black door panels
    Carbon Creations Aero 1 carbon fiber front lip
    Carbonetics carbon fiber windshield wiper cowl
    Carbonetics carbon fiber doors
    Carbonetics carbon fiber door sills
    Carbonetics carbon fiber hatch
    Carbonetics carbon fiber sunroof plug
    FAL molded rear quarter panel & hatch windows
    various misc. OEM parts

    Stay tuned as a few more parts are been bought and the Eclipse takes the trip to the chassis shop...
     
    Last edited: Jun 22, 2013
  2. TwinT66

    TwinT66 Proven Member

    18
    1
    Joined May 7, 2005
    Swansea, Massachusetts
    Looking forward to updates.
    Tony
     
  3. Chris1990gsx

    Chris1990gsx Proven Member

    53
    0
    Joined Jun 15, 2012
    Longbeach, Mississippi
    +1 looking forward for updates
     

    138  0

    1990 Mitsubishi Eclipse GSX
    · 1G DSM
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  4. dsmrafa

    dsmrafa Supporting Member

    26
    4
    Joined Dec 28, 2010
    San Salvador, Central America
    post pictures man :D
     

    451  12

    1996 Mitsubishi Eclipse GST
    awd · manual · 2G DSM
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  5. KHRacing

    KHRacing Proven Member

    15
    0
    Joined Dec 22, 2011
    Kvidinge, Europe
  6. Rsawd95dsm

    Rsawd95dsm Proven Member

    763
    9
    Joined Feb 21, 2008
    Zeeland, Michigan
    Will be suscribing to see how this turns out! Good Luck!
     
    Last edited: Sep 11, 2012

    1K  1

    1995 Mitsubishi Eclipse GSX
    manual · 1G DSM
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  7. bastarddsm

    bastarddsm Proven Member

    4,459
    1,023
    Joined Aug 26, 2003
    Mendota, Illinois
    Why are you ditching the 8.8 for the 9"? I know the 9" is stronger, but it is also heavier and more parasitic. a 4g won't make that much torque...

    what are you planning for the rear? 4 link?
     

    Showcar Build 5K  1

    1991 Eagle Talon N/T
    9.805 @ 144.00 · 1G DSM
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  8. gabytech

    gabytech Proven Member

    394
    10
    Joined Nov 19, 2007
    Daytona, Florida
    As I have research the 8.8 can withstand the abuse to a certain point, but it has its limits. It ain't the same abusing the 8.8 rear end in a AWD DSM than a RWD DSM. We want to build the rear end to handle 1000+ hp abuse. The decision of going with the 9in over the 8.8 was determined after extensive research with different chassis fabricators and rear end manufacturers. Besides, the 8.8 having a rear cover won't allow the back brace to be welded for extra strength like the 9in. The Strange 9in drag race assembly will allow us to have a bullet proof rear end from the get go and avoid future breakage atleast rear end wise.... Race cars are always prone to breakage, but a lot of budget built race cars are constanly breaking and when the total cost of building the budget race car and R&R of broken parts every other race day will end up costing more in the long haul than building a 8sec race car from the get go that could handle quicker ETs. Rather than enjoying your race car, you'll end up with a race car headache... Thats what I'm avoiding, even if it cost me an extra 6 months build up time and an extra 5k total race car cost...
     
    Last edited: Dec 6, 2012
  9. bastarddsm

    bastarddsm Proven Member

    4,459
    1,023
    Joined Aug 26, 2003
    Mendota, Illinois
    Fair enough. What are you doing for rear suspension?
     

    Showcar Build 5K  1

    1991 Eagle Talon N/T
    9.805 @ 144.00 · 1G DSM
    Loading...
  10. gabytech

    gabytech Proven Member

    394
    10
    Joined Nov 19, 2007
    Daytona, Florida
    Not sure yet, 4link would be the best choice, but we also want the rear seats to remain. Still haven't gone into details with the suspension tuner. Theres a stock chassis NO-wheelie bar 2JZ Corolla running low 7s with ladder bar suspension. Im going to contact the same suspension tuner of that race car and take it from there...
     
  11. bastarddsm

    bastarddsm Proven Member

    4,459
    1,023
    Joined Aug 26, 2003
    Mendota, Illinois
    Well keep us posted. I have a similar project in the works Not as extreme. 1G Rwd but not tubbed.
     

    Showcar Build 5K  1

    1991 Eagle Talon N/T
    9.805 @ 144.00 · 1G DSM
    Loading...
  12. whe3ls

    whe3ls Proven Member

    560
    3
    Joined Jun 23, 2008
    spokane, Washington
    i have seen the weaker 28 spline small tube 8.8s hold 600+ foot pounds of torque in a ~4000 pound car.
     
  13. gabytech

    gabytech Proven Member

    394
    10
    Joined Nov 19, 2007
    Daytona, Florida
    I also have seen them hold. Its not a matter if the 8.8 will hold or not, its a matter of how long will the 8.8 hold... Im going to be in the 600-800hp range from the get go. The best route to go with when building a performance machine is build the car to hold a few more ponies that what you are planning on having, that way you wont stress abuse or fatigue the moving parts that quick. Plus that will leave you some room to play with and grow in the future without to many changes. Im not planning on running 6s, but if I can build the rear end to hold 1000+ hp from the get go, that way when the time comes to take the machine further and boost it up, I dont have to change every component in the car driveline wise.

    As I was just speaking with G-Force transmissions today, the T5 will hold just borderline my torque/hp goal, but its going to see hard abuse and the fatigue will be a lot higher than a GF3650 trans... The T5 holds 600hp/ 500 torque and cost $2,800, the GF3650 holds 1000hp/900 torque and cost $4,700, plus they are both streetable trans. A big $$$ difference, but the T5 won't hold long enough and add the cost repairing the transmission in case of failure, the GF3650 will end up holding the power and in the long run costing less compared to the T5...

    Thats why a few budget cars are constanly breaking every other race day at the track, cause they are usually build borderline their power and torque capacity... Thats not an enjoyable race car, thats a headache race car... I prefer to take 6 months longer building the car, and end up with a car I can have fun with, not constanly face breakage and race for a while before taking it further...
     
    Last edited: Mar 20, 2013
  14. ThunderChild

    ThunderChild Supporting VIP

    2,540
    715
    Joined Jan 5, 2012
    Rathdrum, Idaho
    i agree with your rear end choice, there are alot of 8.8s that hold serious power, but the strange axles are legendary, and at the rev points you will be exercising the 9" is the better choice for longevity.

    its better to surplus and play on the safe side when going with rear/trans components at that power level.
     

    Street Build 310  3

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

    410  8

    1987 Toyota Pickup/Hilux
    awd · manual · Misc Vehicles

    Street Build 941  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
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  15. gabytech

    gabytech Proven Member

    394
    10
    Joined Nov 19, 2007
    Daytona, Florida
    Update project Street Stock Chassis Drag Radial RWD 4G63 Eclipse: still need to finish narrowing the frame rails and mini tub it before I measure and order the 9in rear end. Still need the G-Force mock-up transmission to have the chassis fab shop fabricate the motor/trans mounts... Stay tuned !!!
     
    Last edited: Feb 8, 2013
  16. Eckzavier

    Eckzavier Proven Member

    52
    29
    Joined Jan 25, 2009
    Madera, California
    Where are the updates Gabriel?
     

    Street Build 1K  1

    1997 Eagle Talon TSi AWD
    manual · 2G DSM
    Loading...
  17. gabytech

    gabytech Proven Member

    394
    10
    Joined Nov 19, 2007
    Daytona, Florida
    Updates: prepping for mini tubs done. The chassis shop should finish with the rear end, fabricate the motor/trans mount and roll cage.

    image_zps91372a09.jpg

    image_zps33b4e60e.jpg

    image_zpse1733429.jpg

    image_zps9f0bf81c.jpg

    555445_434479066624122_197822438_n_zpsa2b4b784.jpg

    196325_434479249957437_770260014_n_zps56926d04.jpg

    428364_435830309822331_783499412_n_zps33fccb44.jpg
     
    Last edited: Feb 8, 2013
  18. Number1dad

    Number1dad Proven Member

    41
    0
    Joined Dec 29, 2012
    Magnolia, North Carolina
    How much $ into this so fa? Must be high
     
  19. bettfootball

    bettfootball Proven Member

    287
    242
    Joined Mar 7, 2010
    bettendorf, Iowa
    You can buy brand new OEM floors???
     

    Street Build 630  1

    1999 Mitsubishi Eclipse GSX
    awd · manual · 2G DSM
    Loading...
  20. gabytech

    gabytech Proven Member

    394
    10
    Joined Nov 19, 2007
    Daytona, Florida
    Yes, for $297.93 + Shipping

    6226460_zpsb855d36f.gif
     
  21. H4G64T

    H4G64T Proven Member

    715
    9
    Joined Jul 18, 2008
    Providence, Rhode Island
    Those websites still list strut towers and lower rocker panels, but they are in fact discontinued and submitting an order for them results in an email and refund a few days later, explaining that they are no longer available. Ask me how I know.

    Sorry to be a Debbie Downer, but call them before you even place the order, most likely they will tell you they cannot actually be purchased.
     
  22. gabytech

    gabytech Proven Member

    394
    10
    Joined Nov 19, 2007
    Daytona, Florida
    Hope they still around, last time I checked with my local Mitsu dealer parts shop they are still available...
     
  23. H4G64T

    H4G64T Proven Member

    715
    9
    Joined Jul 18, 2008
    Providence, Rhode Island
    If you know of a dealer that can still get body parts like this, can you PM me the dealer name. I would love to grab some stuff.
     
  24. gabytech

    gabytech Proven Member

    394
    10
    Joined Nov 19, 2007
    Daytona, Florida
    I'll check tomorrow, if they still really available, I'll order the floor right away tomorrow... My ex brother in-law owns a body shop, so I guess I'll have him fish around for the floor...

    I just spent a day calling my local Mitsu parts distributor as well as other national Mitsu parts shops. Most body parts are discountinued, guess will have to buy a donor car and cut the floor section off.
     
  25. bettfootball

    bettfootball Proven Member

    287
    242
    Joined Mar 7, 2010
    bettendorf, Iowa
    So if you are using that rear spoiler why did you get the csl lip one?
     

    Street Build 630  1

    1999 Mitsubishi Eclipse GSX
    awd · manual · 2G DSM
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