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Drag Race Build Mid Engine Mitsubishi Mirage Build

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robevo

15+ Year Contributor
87
17
Aug 9, 2006
Brisbane, Australia
I think I have a problem LOL(or way too much time on my hands)
After a few beers and alot of discussion about doing a mid engine all motor conversion
on something mitsubishi I found the perfect donor.A 1999 Jap spec mitsubishi Mirage hatch. 2120lbs
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I picked it up for $200 and started to strip it down to a bare shell. Funny thing along the way
I ended up finding $38 in coins all under the carpet etc. The next step was to cut the rear floor and spare well
and start to add square tube to the chassis rails for extra strength and engine mount points
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So the next stage was to use all the set up I had in my fwd lancer and get it to fit in the rear.We used the front
cross member, front hubs, brakes and struts. I changet the strut tops to the rear ones and mounted it in.
For toe adjustment I took out the steering rack ends and fabbed up a bracket on the cross member to suit.
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So far the total cost of the build including the car was at $350.00(not including my existing set up)Once everything was sitting in place it was time to weld all of the brackets and supports etc. The next headache was the shifter and cable. We simply cut and re welded the shifter bracket in behind, and it all works perfectly.
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For simplicity we ended up going with a hydraulic handbrake which only clamps the front brakes.
The next phase was all about weight savings so out came the holesaw.
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A non power steering rack was put in and some more cutting of unneccesary brakets and bits and the end result is starting to take shape.
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The glass windscreen will stay in but all other windows will be lexan with the drivers side rear window to have an induction scoop of some sorts for the throttle intake.
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Next stage is to fabricate a main hoop out of chromoly and a firewall to the roof to seal it off nicely.We will have that done by the end of the week. all the wiring is done and the car runs and drives.
 
That is freaking awesome. Hats off to your fab skills
 
Nice I am thinking about doing the same with my Hyundai accent over the winter where did you mountains the radiator
 
Haha awesome. Although I'd say its midengine only on a technicality. That thing should drive like an old 911. Its gonna be all about settling the front and controlling understeer and then that rear engine is gonna let itself be known as it comes to the table and wants to swap ends. Then u can use the massive traction to slingshot out of the corner. Cool car good job.
 
Bit of an update, its all finished and ready for its first outing on wednesday, test and tune at the local drag strip.
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Specs so far are
4g64 de stroked 2.1, alloy rods, JE pistons, cnc ported head 350cfm @.50 etc.
9.0:1 compression for now, mechanical fuel pump, methanol, Hypertune intake plenum, 100mm throttle body.
Haltech E11 ecu, MSD DIS 2 ignition, bosch coils.
Makes 240hp at the wheels so far, turning it to 10,100
We weighed it and with me in it 1890 lbs.
I ran the same combo in my fwd coupe and it ran a best 11.9@114 with a 117 best mph 2100lbs.
So im hoping it might crack 120mph.
My new combo will be a 2.4 long rod 14:1 comp with the same cylinder head.
 
Very nice out of the box fab and set up.
What throttle body is the one you are using and what pistons to come up to that compression?
 
this is awesome and inspiring. makes me want to stuff a 4g63t into the back of a geo.
 
Update time, we have mucked around with the strut tops on the rear and pushed them 3 inches towards the front. Im hoping it will
keep the front wheels down a bit more. I have also lowered it 2 inches and put softer springs in the rear too. Next outing
will be in 2 weeks.
I think a 11.6 is the best with this combo. Im in the process of building another bottom end
64 block
106 crank 40 thou o/s pistons and 13:1 comp.
 
That's an awesome ride!
 
Bit of yellow paint and a new pb a few weeks ago
I did 4 passes
11.820 @114.68 1.653 60 foot
11.820 @111.93 1.610 60 foot
11.770 @113.62 1.539 60 foot
12.643 @91.78 1.51 60 foot (Missed 2nd gear and 4th I cant drive LOL) The shifter bushes were flogged out

 
My next step is a hi comp bottom end
Im in the process of building a 14:1 comp
Crower 102mm crank
4G64 bottom end
 
My next step is a hi comp bottom end
Im in the process of building a 14:1 comp
Crower 102mm crank
4G64 bottom end
This thing is going to be a monster for sure! Couple this with a quick spooling turbo should do well at the track!
 
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