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So,
Installed new maf sensor new set of spark plugs loaded in a dyno tune tune I had done originally on the car when I first got it, and install the cam .
Sooner is within 45 minutes from me did a...

No the tune your looking @ with spark tables not matched was from "MOT " Mail order tuner .hate to trow people under the buss but "MOT" tried to tune the MSD and was a disaster .. KR all over car...

Ok thx man ,
Will check it out heading to work .
i looked @ "Pat G " tune for reference on PE scale , he does have fueling getting richer sooner .. But still just baffling me why there is...

Haha that's ok. I'm getting a little mixed up, too. I forgot to update manifold volume in the tune I posted. It's there now.

Also, from your most recently posted log I adjusted spark in the...

Yes that was original tune .. I posted wrong log for KR .. sorry so many tunes and logs ... nuts

Thx man really appreciate the tune will try anything @ this point (track day Friday )
These two scans are from the same tune no changes with newer one but I did Copy "Lo spark " table over to "hi...

I did another log this evening I didn?t post it but was pulling 6-8 degrees of timing ?KR? higher RPM range.
I went through two different tuners, trying to tune the MSD. Both were getting KR.....

Oh god last log I did on the old set up was probably last season in the spring just trying to get rid of a little bit of the surge did not have WB attached is not looking for KR.

Just want to get back to my old tune and setup .

I pulled a couple spark plugs today they?re brown they look really good.
Also looked at an old tune scan 6700 RPM not one knock, retard, same tune I put in the car today knock retard all over the...

I pulled a couple spark plugs today they?re brown they look really good.
Also looked at an old tune scan 6700 RPM not one knock, retard, same tune I put in the car today knock retard all over the...

So I pulled MSD went back to OE intake and old tune been running for years NO ISSUES AT ALL NO KR then did log after re-installing OE intake and Im getting KR !!!! WTF !!!
Here is log from old tune...

Pulled few Degs of timing from 4k rpm / @55 G and up ,,, Added good 15% more Maf freq .
Finally NO KR !!! did pull up to 5700 rpm . Still lean up top have to work on High Maf .
and to dial in...

Good point ,
I am actually using the OE injectors ..Not the ones that came with the MSD .

Will try that

I?ve been taking LTFT copy pasting into the VE Half percentage..
Prob ,
$1250 fpr MSD with FIC 850cc injectors. Brand, new clamshell gasket, and O-ring seals..
Have to make a decision in a day or...

TSP 2.2 cam , Vararam CAI , and the Mamo MSD ..stock TB .
No issues at all with previous tune, I?ve been running for three years, put the MSD on all kinds of issues.
Just increased PE ratio to 1,20...

Kinda giving up here... Can t seem to get rid of the KR , tried less timing adding PE @1.19 and correcting AFR Err Maf...
It runs goos ides good etc but KR ..OMG
Might just pull MSD and go back...

Any suggestions on what to raise the PE EQ ratio to ?
Its 1.16 know ?

Ok ,
I?ve been tracking my two Corvettes for over 12 years t, doing small, tweaks and learning as I go with HP tuners on top of what other tuners have done this is the first time I did a major bolt...

Ok 👍
Thx for all the help ..
Should I be looking at 11s AFR range to be safe ..

I have been logging with wideband ..
Should I richen with ?maf? or PE frequency table ? Or both ?
I might pull the MSD before track day and go back to old setup .

I changed back "PE enable TPS" to Stock much better ramp in ..
thought I was logging commanded AFR ..?
More concerned know about AFR fueling in PE being is ok . Heading out to a track day nest...

Thx will check that .
All the PE tables are the same as tune been running for the last three years..
I do have a stock tune I can check it against..
Was also wondering about AFR in PE .. don?t...

Log and Tune attached