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  • 6/18/2013

2003 Eclipse GT
 
 
Engine Modifications -
3.8L 6G75 MIVEC Engine Swap
Stage 2 Clutch Kit with Lightweight Flywheel
Modified 501 MAF (Removed Air horn to simulate a 482/399 MAF for more air flow)
AEM Cold Air Intake
Full Exhaust System
Mishimoto Radiator
Dual slim fans
6G74 Fuel Rails (Larger volume chamber than OEM 6G72 rails)
AEM UEGO Wideband
ECU Tuned - BlackHeart Motors
 
Wheels/Braking/Suspension Modifications
Evo VIII Brembo Brake conversion
PowerStop Drilled & Slotted Rotors
PowerStop Evolution Pads
Nissan 350Z Wheels (Ceramic Coated) 
KSport GT Pro Coilovers
 
 
Misc. Modifications
Extensive weight reduction
BHM Short Shifter
Modified OEM seats (cut foam and reshaped lower seat cushion)
Hydro-Dipped door panel trim & valve cover
Color matched headlight housings
Debadged
Aero Duo/Falcon rear wing
Moderate engine bay wire tuck



Initial Tune on 3.0L 6G72- January 2012
Modifications - CAI
 
 

 
January 2012 - First time home
 


EDITED on 3/31/2015
BlackHeart Motors (BHM) - Mitsubishi Certified Technician - Enthusiast - Owner www.blackheartmotors.net
  • 6/18/2013
Nice! Time to get some photos of the car with the new exterior touches.
Apex Powered -Founder & Automotive Enthusiast -Mitsubishi ECU calibration -Fuel Economy/Performance
  • 6/18/2013
Hmmm, I'm a little confused what I'm looking at for the dyno graph lol. Are you showing two initial pulls in the first graph? 
  • 6/18/2013
But either way man, ish looks clean!
  • 6/18/2013
In the first graph the solid line is hp and the dotted line is torque :)
Second graph is the same but the blue line is stock hp and tq and the red is BHM tuned hp and tq
Apex Powered -Founder & Automotive Enthusiast -Mitsubishi ECU calibration -Fuel Economy/Performance
  • 6/18/2013
Originally posted by Gothams_Champ
Nice! Time to get some photos of the car with the new exterior touches.
I will be working on this and updating/adding stuff, just figured it was time to start one.
 
The dyno numbers are just based off a software called Virtual Dyno which has been proven to be fairly accurate, I simply use the software as a tuning tool and compare component changes not just for the numbers. The Kia intake manifold made a noticeable improvement for the top end power level and torque across the RPM range. The second power chart showing the BHM tune and a stock tune is from November of 2012, I have yet to get another chart up for the latest component changes made. I have a couple more items that will be going on here soon and will also document that data, but I do expect to see even more mid-range and top end improvements with those specific items.
 
I have an extensive bit of information for this platform and specifically the 6g7X series engines which are being put to use, all of which is also being thoroughly documented. If you are curious more or want to follow along I will try to keep this up to date and share as much as I am willing, but you can also follow me on Facebook under "BlackHeart Motors"
 
 
BlackHeart Motors (BHM) - Mitsubishi Certified Technician - Enthusiast - Owner www.blackheartmotors.net
  • 10/16/2013
Just a brief update since I have made more progress with some engine components. This past month I pulled the motor to do some maintenance, cleaning, and install a different set of camshafts to document this engine further. Below is a quick pull using Virtual Dyno after the cams were installed, blue line is a run from February of 2012 when the engine was mostly stock. As you can see there has been a major improvement with the cams, and I still need to dial in the tune more for the change.
BlackHeart Motors (BHM) - Mitsubishi Certified Technician - Enthusiast - Owner www.blackheartmotors.net
  • 10/16/2013
Damn man making some moves! Love seeing the progress. What was the overall change in feel with the new cams?
  • 10/17/2013
The car pulls a lot stronger now and keeps pulling to rev limit whereas before you could feel the power dropping off a bit before hitting the rev limit. A lot more fun to drive now, fuel economy may get a little bump also. After the first fill up it came out to about 27mpg, heavy thrashing, city/highway driving, data logging...once the tune is dialed in I anticipate seeing anywhere from 30-32mpg highway (OEM was rated at 26 highway so that gives you an idea how much it has improved)
BlackHeart Motors (BHM) - Mitsubishi Certified Technician - Enthusiast - Owner www.blackheartmotors.net
  • 10/18/2013
Not bad! This is a great little build thread. Nice job!
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