"Stock" 5.7 Tune Discussion

Hey guys, buddy of mine just got a 2012 Challenger 5.7 that appears to be stock.

I took a look into his "Stock" tune and saw that the Exhaust Cam Phaser was disabled.

Has anyone else seen this on a stock car? Compared this stock file to a couple other stock 5.7s and there seems to be some differences in spark tables as well. Speed limiter was definetly bumped from 142mph to 166mph. Ive yet to see that on a "stock" car. This post was really meant for discussion.


Attached is a read.Attachment 113338

I've seen a 2012 ram 2500 HD 5.7 with the exhaust Cam disabled!

Log cam position and see if it moves. That switch is backwards sometimes.

That was exactly my thought, just waiting for my friend to send me a log file. Wonder why HP would have that switch backwards.

Why don't you send a support ticket and ask?

Yeah on my 2013 JGC 5.7 the exhaust cam was also disabled but I confirmed VVT was working by logging the cam angle. Seems to be a known problem on certain vehicles...I would venture to say it is a GPEC2 controller thing, but it is just a guess.

Yeah i ended up logging cam angle and it sure was swinging as it should.

i guess challengers have some diffs on there stock tunes

there is a parameter whether this system is provided or not. and then parameter 1 shaft or not. and the fact that it is further disabled is a feature of this control unit and the operating system

Quote:

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Originally Posted by 732mopar

Hey guys, buddy of mine just got a 2012 Challenger 5.7 that appears to be stock.

I took a look into his "Stock" tune and saw that the Exhaust Cam Phaser was disabled.

Has anyone else seen this on a stock car? Compared this stock file to a couple other stock 5.7s and there seems to be some differences in spark tables as well. Speed limiter was definetly bumped from 142mph to 166mph. Ive yet to see that on a "stock" car. This post was really meant for discussion.


Attached is a read.Attachment 113338

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Was this an Ex police car ?

As for the phaser being disabled, my 2013 JGC 5.7 was bone stock and also showed it was disabled but it was not. Some years of the GPEC controllers showed disable when it is actually not. There was a thread about this on the forum a while back.

still looking for my solution in my cam swap 5.7 JGC Overland - It will not start alone, I have to spray the intake with starting fluid. can anyone help?

I have made a 5.7 to 6.1 swap in my car. Thinking just getting a 6.1 PCM (2008 it was)would work by writing my VIN , but no . The 2008-2010 starting diagram change from 2005-2007
This is valid for cars between 2005 and 2010 2008 up does not have a hard wire from ign. switch to starter relay. Thinking I would trick it start , I bypass the relay , engine crank and
starting injector pulse width was 0. See PDF Hope this helps.
Attachment 146257Attachment 146258

You say cam swap , I replied with a starter diagram , but did you tune anything at same time ?
If not that looks more like a poor timing .