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Thanks for the input!

I did try reducing the Power Enrichment Rate from 1.0 Lambda/Sec back to stock 0.7 Lambda/sec and did not see any change or improvement in reducing the Injector Duty Cycle...

2014 Shelby GT500 5.8L Factory SC

Modifications made -
Kooks mid-length 1-3/4" Headers;
Kooks Off-Road H pipe (No Cats), Front & Rear O2 Sensors installed on each Bank;
JLT Big Air 123mm CAI ;...

Any thoughts on the question raised by CCS86 about how to best match ETC Tq Req to Engine Brake Tq as I was wondering the same thing. Thanks!

Fantastic! Thanks

Excellent !!
That PID also comes up as Pedal Position % for me too in the User Math area.

Also found your very helpful earlier post on Math to Derive Pedal Count. Looks like max pedal count...

Thanks, that is very helpful!

So just to clarify a few things for tuning the Driver Demand table (Drvr Demand Eng TQ vs Ped Pos and RPM) [ECM 33008] as I'm still learning...

- I would want to...

After additional testing, I definitely needed to set the Pedal Position WOT Start to 200 and Pedal Position WOT End to 545 instead of 1023 for both in order for the throttle to open fully to 82* ...

And thanks ThatWhite5.0 for the suggested tables for spark MBT, Borderline and CylPress. They definitely have a smoother flow. I notice the MBT has more resolution in the lower Load range (Load .1...

What is interesting about the MBT is that it is unchanged from the stock tune and I agree it does not look like it flows smoothly. Perhaps I should try to smooth out the MBT table too, though my...

I had also installed a lower 170 F Tstat which impacted my WOT throttle opening

Thanks Thatwhite5.0

Regarding the Comb stability limit (and throttle not fully opening), I was able to correct that with changes to the Load Limiting (vs ECT and vs MCT) and Comb Stability Limit...

My spark timing is being pulled from 15* down to 10* beginning when my spark source changes from Borderline to Cylinder Pressure Limit at 6,000 rpm and Air Load at 1.85 on the Dyno (52 seconds in...

Thanks and sounds like you are getting it dialed in very well. Would be great to have you post your tune in the repository or on the forum if possible for others to learn when you are finished (are...

I notice a difference in the clutch protection settings from what I am using to what you're using in file r9t.hpt , which may or may not make a difference--

From your r9t file
81069

From my...

Not sure if dip in ETC from 72* to 41* might be from any traction control or clutch protection though didn't see that show up in the torq source (always DrvrDemd)

For my 14GT500 I been testing...

2014 GT500
Kooks LT, ORH, JLT 123mm CAI, FRPP Twin 65mm CJ TB, +10% Lower Pulley, NGK TR7IX 0.032" and 170 Deg TStat
making progress as good drivability, full WOT, disabled clutch protection: ...

Attached Tune and Log WOT -- throttle now fully opens

Thanks to Murfie and MRRPMBRP as I believe I have figured out the reason for limited throttle opening at WOT. It turns out there were a couple of factors involved -- had installed a lower 170* TStat...

Thanks! I am continuing to absorb a lot of great information from others as I search the forum on tuning topics and tips.

Do you have any logs to post with your tune? I am also curious about spark advance and KR results.

I also noticed my stock tune has KR limited to 1 Deg max, which seems strange to limit to 1...

Just downloaded newer VCM v 4.0 and noticed several new tables and tabs :) Will be studying your tune to see how to dial in torque etc to enable WOT 82Deg

I am logging duty cycle, but haven't...

In process of tuning my 14 GT500 w Kooks LT, ORH, JLT 123mm CAI, FRPP Twin 65mm CJ TB, +10% Lower Pulley and 170 Deg TStat. Will post tune when get dialed in.

I am curious if my stock Injectors will be up to the task with enough of a Duty Cycle safety margin. I haven't been able to get WOT yet to tell.

How do you like like your ID1000 injectors? ...

Thanks for emailing your tune. Looks like I need to update to a newer version of VCM Suite as my V 3.6.26 wasn't able open the tune file.

For the FRPP Twin 65mm CJ TB, I found the attached Throt...

Thank you very much for your helpful comments and I will take a closer look at the tables mentioned!

MRRPMBRP - do you have an example tune of what is now working for you?

It has been a great...