How Knock Limited Are the Gen 5 Engines

[kriskyk]

Curious to know from those who have self tuned or have been involved in tuning the gen 5 Viper, how Knock Limited these engines are?

Is there much power under the curve left on the table using higher octane fuels as one approaches minimum best timing / maximum brake torque?

I think I have seen graphs and or discussions around a lot timing be pulled at peak torque?

For those who road course track, have you logged how much knock and or spark retard is occurring when things start to heat soak?

[Jack B]

Knock is an enhanced PID_and you cannot get that data without the dealers scan tool on the stock pcm, unless something has changed. There is a lot of timing pulled at peak torque and even more pulled when you have high IAT's and high ECT's. I have seen the timing down to 10-12 degrees near peak torque at wot.

Curious to know from those who have self tuned or have been involved in tuning the gen 5 Viper, how Knock Limited these engines are?

Is there much power under the curve left on the table using higher octane fuels as one approaches minimum best timing / maximum brake torque?I think I have seen graphs and or discussions around a lot timing be pulled at peak torque?

For those who road course track, have you logged how much knock and or spark retard is occurring when things start to heat soak?

[Anton28]

Knock is an enhanced PID_and you cannot get that data without the dealers scan tool on the stock pcm, unless something has changed. There is a lot of timing pulled at peak torque and even more pulled when you have high IAT's and high ECT's. I have seen the timing down to 10-12 degrees near peak torque at wot.

Ohhh dang