Disappointing results again
Attached is the dyno graph. Folowing mods are on my car :
- Dansk Sports Cat
- Dansk Headers
- Dansk Sports Muffler
- Evo Highflow Intake
When I sent my DME to Evolution Motorsports, I told them I had the above 4 mods on my car. They told me the stage 3 program (Evo intake, headers & muffler) will be the closest fit and that they would load my DME with that program.
Evolution Motorsports took about a week to get the program in place as they claim my DME is different from those in USA so require some additional 'tweaking'. Not a terribly big problem as my car was in the paint shop anyway. Got my DME back last week and drove the car for about 10 days before heading down to the dyno today.
Blue line - Today's run with GIAC program with all the above 4 mods
Red line - Run with stock ECU and all the above 4 mods
Green line - Run with stock ECU, Dansk headers and sports cat
As you can see, the run with the best results (bar > 6,500rpm) is actually the green line. Meaning the muffler, intake and GIAC was a waste of money
There is a noticeable sudden dip in power/torque between 5,800-6,000rpm. This greatly concerns me. One of the reason suggested is a lean out which forced the knock sensor to retard timing. Damn it! I'm not tracking my car till this issue is resolved!
Objectively, the GIAC program did help in bringing back power to area lost when I put the intake and muffler on the car. But this recovery simply brought it closer or on par with the green line run. Meaning I would have been better off not putting on the muffler, intake and the GIAC program which cost me about $2,200!
My peak bhp is now even lower than before!!
Overall, I'm quite or very disappointed with the results. I shall be contacting Evolution Motorsports to get a refund since they have a satisfaction guarantee that comes with their GIAC program. But I will need to send my DME back to them again to restore everything back to stock and that means a week of no car again
Either that or I have someone to fly down here and get the DME custom tuned for my car on the dyno... I'm seriously considering that option.
Any suggestions people?