Kosunen Racing
Online (web) since 2001!
The Kosunen Racing is a private motorsport team from Finland. The principle is that rivals will help whenever needed!
Mitsubishi Colt WRC' Evolution
Mitsubishi Colt WRC' Evolution
4WD, +500 bhp and about 800 Nm torque Unique and extreme equipment of interest both in Finland and abroad! more »
Working together to victory!
Without partners in motorsport, it is impossible. An impressive ensemble of interest to the general public, as well as the media. more >
Team leffat
Video compilations
Interesting camera angles, changing ideas, speed and gear displays, humor boosts well-known race videos
Skoda Felicia, 1400 Trophy
Skoda Felicia, 1400 Trophy
Rally: 1400 Trophy class Skoda Mini'Kit Felicia.
2WD, +100 hv, 6-speed dogbox, LSD etc. more »

Mitsubishi Colt Evo - Build info

y2011 NOTE! partly outdated information!

Fool or reality?!
Let’s face it; the Mitsubishi Colt was never impress the big bhp-boys. Team circulated a press to realease on April Fools day 2006 that we planned to build a WRC-style Colt Evo. All think it was a prank, team also.... After that we starting think could it actually be done?

The quick visit a local mitsubishi dealer and measure a Colt engine bay. According to the tape measure Mitsubishi Evo 4G63T engine would fit there. All modifications including design, engine, paint, structural construction, fiber works etc. is done by team. Active man-hours were generated about 1500 h. First version was race "ready" in january 2007.

Note! All 2009-2011 videos speed does not use a wheel sensor. It's use GPS-speed data! GPS-data/speed does not affect the wheelspin. So display show's real speed!


Some videos
- 2011 Tarmac race
- 2011 Tarmac BumberCam
- 2010 gravel, Bumbercam
- 2010 Tarmac Incar / dry
- Tarmac Incar/ very wet
- 2010 Helmet cam
- 2010 first tarmac event
- 2010 winter incar
- 2010 winter outside
- Tarmac incar 2009
- Winter incar 2009

- Tarmac onboard video
- Gravel rallysprint 2007
- Winter rallysprint 2008
- Dyno ALS (antilag) testing

Sort wheelbase or not?
"The wheelbase Lancer Evo VI is 2510 mm, Ford Fiesta S2000 is 2489 mm
and wheelbase the Mitsubishi Colt Evo 2520 mm"


Mitsubishi Colt Evo - dynotestausOne week after April Fool the team bought a Mitsubishi Colt CZ3. Then a 90 hp front wheel drive Colt was stripped down to bare metal and the various modifications needed to fit the Lancer Evo 4WD layout. The Lancer Evo engine dropped into is new custom mounts, as it needed to be place to make sure all other driverain components would fit perfectly.

At the same time can be corrected by the claim that the car has a short wheelbase so that it can succeed. Namely, for example, the wheelbase Lancer Evo 6 includes a 2510 mm, the S2000 for Ford Fiesta in the 2489 mm wheelbase and our Mitsubishi Colt Evo 2520 mm.

All-wheel drive system includes mechanical differentials front and rear (electronically controlled are banned in rules). Fiberglass hood, side skirts, bumbers. Side skirts are universal M3 side skirts. Custom made carbon fiber door cards and some other interior panels.

Mitsubishi Colt Evo - body construction   Mitsubishi Colt Evo - ody construction  Mitsubishi Colt Evo - ody construction

Engine & Gearbox
Mitsubishi Colt Evo - 4G63T engine mountFinnish rallysprint Special Saloon class5 4wd cars minimum weight was guite high 1330 kg. (Check y2011 update bottom of this page) Team commissioned the local company AKE-Gears Ltd to build a tough, five-speed manual dogbox. Gearbox is linked to an Ikeaya Formula sequantial shifter.

Engine head has only slightly modifications on it and compression ration is mild +9:1 and also a 45 mm inlet restrictor is required. Mild because WRC cars used nowadays 10-11:1 and over 2.5 bar boost! Engine is controlled by a MoTeC ECU and tuned by Asko Kosonen (ex. Jari-Matti Latvala and now TMR race engineer).

Mitsubishi Colt Evo - moottoriFinnish turbocharging specialist FIN-Turbo Ltd (on hire in team facilities) designed a ball-bearing turbo that takes into account the 45 mm inlet restrictor. Tial blow-off and wastegate valves can be found on either side of the turbo.

NOTE! Although the actual maximum readings have never tried to retrieve the dyno but.. Currently the engine has been measured over 550 horsepower and the best part that it's a fully driveable from 3500 - 7500 rpm. Note that we use only 1,7 bar boost!

Mitsubishi Colt Evo - Front suspensionThis is a learning year we testing / race and try to find good snow-tarmac-gravel set-up. We were aware that it was going to be very difficult for us at the beginning of the first season. But having said that, we’ve seen lot of progress with the car. You can say power means nothing without control. In the middle 2007/summer car get's the diffrent central diff, rear suspension structure change, installing the Motec controlled intercooler, radiator and oil cooler waterspray system which has dropped the engine temperature 10 celsius! Autumn 2007 the Colt Evo get's widen the trackwide by 80 mm (~ 3 inch)! That takes lot of work. End of year 2007 summer we've also spent a lot of time looking at how we can further refine the car's geometry to suit twisty tarmac events.

Mitsubishi Colt Evo - ripustus 2010The target are get a Colt a more responsive with better traction and more balanced. At year 2009 autumn we get new wrc-type rear suspension and in 2010 spring also front suspension has update to WRC-type fully adjustable fabricated steel links. Both end use Reiger external reservoir dampers and blade/tube type adjustable anti-roll bars. Note that example front suspension parts is over 20 kg lighter than stock Lancer Evo parts. Year 2010 snow and ice engine setup package has readings 475 hp / 660 Nm with only 1,3 bar boost and fully driveable from 2500 - 7000 rpm. Note that with this setup tested max measured torque with bigger boost was ~800 Nm in 3500 rpm! Our turbocharger supplier really rocks. Here we go a again... We enjoyed racing really and put a good show sometimes.

2011 tarmac racing

Year 2011 national Automobile Association has decided BAN race fuels. So we using now stantard 98E pump fuel. To compensate this same time the class minimum weight reduce of 1230 kg was 1330 kg. So we can take a large part of the additional weights off! The car is the rules minimum weight. We also build a new engine because using 98E fuel and power still over 500 hp and torque is now over 800 Nm! The latest update is 13-inch front brake discs (8/2011).