WTF-DYNO RESULTS AFTER 55 INSTALL
ANYWAYS 225MAX HP
241 MAX TORQUE-AFR WAS LEAN MAX 15.3 TO LOW OF 13.6 AVG 14.8-
ECU IS GOING OUT FOR A TUNE
IVE SEEN POSTING IN WHICH THOSE WHO HAVE DONE THE SWAP ARE SHOWING GOOD BASELINE NUMBERS- ????? DYNO IS BEING USED AND DOES ANYBODY HAVE ANY REAL UNMANIPULTAED DYNO RUNS BEFORE AND AFTER
PLEASE EMAIL ME YOUR THOUGHTS AND ADVICE
SICKC43OWNER@YAHOO.COM

Last edited by sickc43owner; Jun 17, 2013 at 10:54 PM. Reason: none
ANYWAYS 225MAX HP
241 MAX TORQUE-AFR WAS LEAN MAX 15.3 TO LOW OF 13.6 AVG 14.8-
ECU IS GOING OUT FOR A TUNE
IVE SEEN POSTING IN WHICH THOSE WHO HAVE DONE THE SWAP ARE SHOWING GOOD BASELINE NUMBERS- ????? DYNO IS BEING USED AND DOES ANYBODY HAVE ANY REAL UNMANIPULTAED DYNO RUNS BEFORE AND AFTER
PLEASE EMAIL ME YOUR THOUGHTS AND ADVICE
SICKC43OWNER@YAHOO.COM




Is the dyno reads correctly, some dynos didn't gives a correct reading of frequencies,
its happened to me with "2" bad unofficial daynos.....

ZAYED,,
if you can get the engine number or part # off the block, that would be what you need. let me know the number and i can look it up for you.
i've had a dyno give me blatantly false reults before, to the point i thought there was something wrong with my car... over 100 hp down and dropping each pull. but it was infact the dyno... the car was as rock solid as ever.
the difference to the 55 motor is huge, you should be able to tell by driving the car easily if it's a 55 or a 43.
It's extremely lean- gotta get it in the air and checks e brake drums, dyno guy wrapped the straps around the rear control arms and pulled on the ebrake cable in the process , noted smell and figured it out- hoping nothing is seizing inside pulling my power down!
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Is the Mustang unit you are using an AWD version? I didn't understand the comment about the front rollers and rear rollers....if it has both, it is an AWD unit and setup is completely different than for a 2WD. Automatic cars should be dynoed in the 1-1 gear.....3rd for a 4 speed box, etc. The trick is getting it to the correct RPM to keep it from trying to kick down a gear when you start the pull.
Your A/F is obviously a source of concern...but remember that factory calibrations err on the side of emissions and leaner is cleaner. Sweet spot for an N/A engine is 12.7 or so....and on a boosted application it depends on fuel system and amount of manifold pressure....but mid 11's is not bad to start.
Good luck...and if you have specific questions, shoot them at me and I will try to help!
Kyle
The Best of Mercedes & AMG
Based on the experiences, I wouldn't recommend any type of tune to the C43 ECU.
As for the power drop, I don't know what to say, but your numbers represent a 4.3l motor, not a 5.4l motor.
Agreed the mustang was very stingy, the car feels much better than the c43 engine, but not 100%
Anxious to see the change with Ecu tune




It's extremely lean- gotta get it in the air and checks e brake drums, dyno guy wrapped the straps around the rear control arms and pulled on the ebrake cable in the process , noted smell and figured it out- hoping nothing is seizing inside pulling my power down!
is the Injectors green with OEM #: "113 078 01 49", Bosch #: "0280 155 839".....??
ZAYED,,




ZAYED,,
Last edited by cm60k; Jun 18, 2013 at 09:33 PM.
ANYWAYS 225MAX HP
241 MAX TORQUE-AFR WAS LEAN MAX 15.3 TO LOW OF 13.6 AVG 14.8-
ECU IS GOING OUT FOR A TUNE
IVE SEEN POSTING IN WHICH THOSE WHO HAVE DONE THE SWAP ARE SHOWING GOOD BASELINE NUMBERS- ????? DYNO IS BEING USED AND DOES ANYBODY HAVE ANY REAL UNMANIPULTAED DYNO RUNS BEFORE AND AFTER
PLEASE EMAIL ME YOUR THOUGHTS AND ADVICE
SICKC43OWNER@YAHOO.COMAttachment 261661
Attachment 261662
i assume you bought a new MAF designed for e55 engine?
your car was running lean with c43 maf fitted to e55 engine?
i had mine changed maybe 6 years ago.
maf's don't last long do they?
should they be changed on regular basis maybe every 5 years or so, just to be on the safe side avoiding lean fuel mixture?
I don't have CEL safety feature on my euro C43 only US spec. cars had the CEL.
i had mine changed maybe 6 years ago.
maf's don't last long do they?
should they be changed on regular basis maybe every 5 years or so, just to be on the safe side avoiding lean fuel mixture?
I don't have CEL safety feature on my euro C43 only US spec. cars had the CEL.
I guess for maintenance purposes it would be a good thing. I will perhaps change mine soon .








