I logged the above suggested, I saw no knock at all, but this surge is happening more now I was running at 52MPH , rpm was bouncing around 1600, it would surge forward to almost 1700. I went back to stock tune and the problem disappeared..

SO I guess the title of my thread is wrong, should be ;
"91 ...

Mike_Levy wrote:Right, you don't need to log all that stuff. I generally log LT KR, ST KR, Throttle %, engine rpm and speed.

Thanks Mike, I ll try that tomorrow.

Have you tried turning off MDS which may be what you are feeling for that short burst. I recommend getting a CMRTune. LT and ST Knock are what you are wanting to datalog.

You may want to check this out also, it is by XE Ryder:

http://www.chargerforums.com/forums/forumdisplay.php?f=31

Thanks,
I ...

U7135
Latest Rev.
2006 Charger R/T

So Im running 91 CAI Perf tune, but am running 92 Oct. ( highest I can get here) Lately I have been getting some surging at various speeds, usually around 1500 - 2000 rpm. It is very subtle, while in cruise it is the most noticeable. Trying to describe it is hard ...

mikel wrote:Diesel 93 octane? J/K...

Try the 93 tune and monitor for KR.

ooops
I guess I should have put this in the Gas Section eh?

Thanks

I must live in the only county around where it is impossible to find 93 oct. Choices up here are 87,89 and 92.

So is there a quick adjust I can to for the 91 CAI tune or can I request a custom tune from DiabloSport?

Thanks

I guess i should list my specs

06 Charger 5.7 k&n

My tunes are either 91 CAI or 93 CAI - but I cant find that gas anywhere!
Available to me are 87 , 89 and 92.
I have ran 92OCT with the 91 CAI Tune..I assume that is ok but I was wondering why there is not a 92 CAI tune..

Someone suggested I run the 87OCT and put in one of those octane boosters ...

Thanks Mike!

I have to say, I have been reading some of this forum in the last few days, and although I have yet to actually use your product ( 5 o clock cant come soon enough) I must say the support you guys have shown here is top notch, great job

Hi All, thanks for this forum, very helpful

I just got my U7135 today, and of course I need to update my car! My question is, can I have my Predator plugged into my laptop AND my car at the same time and avoid using a power adapter so I can do the update?

Thanks!