2010 Camaro with knock issues

[ProudLs]

Well, I have 2010 Camaro SS with ARH 1 7/8 LT w/Cats, Borla axel back, Fastlane CAI and SLP UP. I am curious to learn how I should tune my car with this setup. Timing advance and KS are like a nightmare to me. Any advice will be highly appreciated.

[madvette08]

I would also zero out the Spark Correction GAS table, it adds timing to your main spark tables based on AFR.

[ProudLs]

I would also zero out the Spark Correction GAS table, it adds timing to your main spark tables based on AFR.

I have done that but my problem is the KS especially after installing my headers.

Thanks,

[madvette08]

How much timing are you running?

[ProudLs]

How much timing are you running?

There you go..

[ProudLs]

I have to play with the KS in order to use this timing
Is it high?

[ProudLs]

This is my tune file, tell me what do you think?

[madvette08]

It is to high, but its set that way from GM. The LS3's are efficient motors and they dont need that much timing.

[ProudLs]

So what's the recommended timing in this case? Any round numbers in peak TQ and HP?
How can you make gain in power without advancing the timing?

[DSteck]

Zero out the table that madvette08 mentioned, and start off with about 22* of timing at your peak torque (roughly 4600-4800rpm) and 25* at peak horsepower (probably in the 6000rpm area). Smooth and try it out.

[WS6HUMMER]

I have done that but my problem is the KS especially after installing my headers.

Thanks,

What table are you talking about when you say KS, are you talking about cutting down the gain on the Knock Sensors?

[ProudLs]

What table are you talking about when you say KS, are you talking about cutting down the gain on the Knock Sensors?

I am playing with the Knock sensitivity and the amount of retard as it’s mentioned in my tune file.

[ProudLs]

Zero out the table that madvette08 mentioned, and start off with about 22* of timing at your peak torque (roughly 4600-4800rpm) and 25* at peak horsepower (probably in the 6000rpm area). Smooth and try it out.

I will do that but is there any thing else I can do to gian more than this? 22* is standard on my stock tune and 25* might add extra power but will try.

[madvette08]

Around 23 degrees is were they like it, air fuel ratio is also important. What AFR are you running?

[WS6HUMMER]

What table are you talking about when you say KS, are you talking about cutting down the gain on the Knock Sensors?

Oh OK, thats what I mentioned I did in post #19 of this thread, didn't know if you were doing something different.

[DSteck]

I will do that but is there any thing else I can do to gian more than this? 22* is standard on my stock tune and 25* might add extra power but will try.

Just start there. Your stock table has that number listed, along with adders for PE operation. Typically, I find best power happens at 24* peak torque and 27* peak horsepower.

[ProudLs]

Around 23 degrees is were they like it, air fuel ratio is also important. What AFR are you running?

12.4 but I am trying to make it 12.8 cross the board at WOT at this stage and will look at LTFT, STFT later on.

[DSteck]

12.4 but I am trying to make it 12.8 cross the board at WOT at this stage and will look at LTFT, STFT later on.

Stick to 12.5. Gen IV LSx engines do not like to run as lean as people think... they actually do better with a bit more fuel.

[ProudLs]

Just start there. Your stock table has that number listed, along with adders for PE operation. Typically, I find best power happens at 24* peak torque and 27* peak horsepower.

Can I do anything in the hot PE enable TPS threshold VS RPM? I adjusted only PE fuel multiplier VS RPM. Do I need to play with other tables as well?

Thanks for the high input.

[DSteck]

Can I do anything in the hot PE enable TPS threshold VS RPM? I adjusted only PE fuel multiplier VS RPM. Do I need to play with other tables as well?

Thanks for the high input.

You don't really need to change your throttle position criteria for PE.