[NicD]

Originally Posted by travislambert

You're making the argumemt that a tune on a otherwise stock Z06 will yield the same improvement as a tune on an otherwise stock ZL1.... I'm sorry but you're wrong. The airflow characteristics are different, cam phaser is different, etc..

I'm so glad you mentioned the cam phasing, do you want to guess what running the CTS-V/ZL1 cam phaser settings on a Z06 does or visa versa? This is where I set you up for another argument if you take the bait... The motor is the same, the airflow characteristics are the same, the improvement with just a tune is the same as far as peak horsepower goes.

Originally Posted by travislambert

You're talking about a completely different car with a completely different tune with completely different airflow characteristics.

The motor is identical, different platform doesn't matter.

Originally Posted by travislambert

This is a Camaro forum and the question is about a ZL1.

Yes, the same exact LT4 in both.

Originally Posted by travislambert

It's perfectly cool that you have some Z06 experience to share, but acting like my experience is irrelevant because I had a stock replacement air filter is silly when your experience isn't even with the right car.

Your experience is irrelevant because you also changed the air filter which you said made a big difference. I've tuned several ZL1s already, just none that fit the completely stock definition but I've done many TUNE ONLY Z06s that fit the criteria. I do this every day and you are talking about the one experience you had where you changed the air filter, you said and I quote....

Originally Posted by travislambert

the stock air filter on the ZL1 is very restrictive. So much so that there have been cases of the filters collapsing under vacuum. I'm sure the K&N stock replacement filter helped the airflow (and horsepower) quite a bit, but I didn't get a chance to test with the stock filter to see how much of the horsepower gain was attributed directly to the air filter swap.

Just stop.