'22 SS Engine Differences
Two questions:
1) What are the differences between the 22+ LT1 engines and earlier models? 2) I've seen some anecdotes that the newer motors (possibly 22+?) make a bit more power. (E.g. commentary from some tuning shops on YouTube). Any evidence on this? |
I highly doubt they make more power. Unless they finagled the tune, but I doubt it
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Power is largely a function of how much fuel and air you can cram in there. If you aren't increasing this, or increasing RPM, there's no more power being made. Does it now rev to 7K or something? No. Is it taking in more air so it can add more fuel? No. |
Yeah the only "difference" I can think of is hand built at PBC vs not, but it's still the same motor with the same exact intake, heads, throttle body, and etc.
I do wonder though if you dyno a non-NPP vs an NPP if that makes a slight difference like on the C7. |
It’s my understanding that the 22+ uses a different cam phaser and calibration as per this document.
https://www.chevrolet.com/content/da...54Supplier.pdf |
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Okay, why am I saying this? - one, there has been no official Camaro development team since 2019, just a few caretakers to oversee manufacturing and the parts bin additions that must have already been in the pipeline from or before 2019; - two, there have been zero reports of any widespread cam phaser issues, unlike, say, the LT4 oil pump or the A8 transmission shudder issue, so they had no obvious business imperative to seek alternatives; - three, if they improve anything powerwise, they have to recertify and re-emission the car, which costs $$$$, and considering how little they invested into even the 2024 farewell edition (existing parts, a new paint color, vinyl and a cheap ass new badge), this is very unlikely. All conjecture of course, and I'd be the happiest to learn that this was the 1% case, not the 99%, if someone has actual and verified information. |
From the document mentioned....
MODEL YEAR 2022 AND NEWER ENGINES REQUIRE THE USE OF THE CORRECT CHEVROLET PERFORMANCE ENGINE CONTROLLER KITS WHICH ARE DESIGNED TO WORK WITH MODEL YEAR 2022 ENGINES AND NEWER. MODEL YEAR 2022 LT1 ENGINES USE A NEWER STYLE CAM PHASER AND REQUIRE A UNIQUE CALIBRATION. PLEASE CHECK WITH YOUR CHEVROLET PERFORMANCE DEALER TO ENSURE THE CORRECT CHEVROLET PERFORMANCE ENGINE CONTROLLER KIT IS USED FOR THIS ENGINE. |
I do believe they use a different phaser for the ‘22+ Camaro LT1 motors as well as per GPI’s website (see dropdown for “cam bolt”).
https://gwatneyperformance.com/produ...-kit/#cam-bolt Agree that this doesn’t mean anything, it’s just interesting. |
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I LOVE my 2020 Camaro 2SS, but I've given up on GM... My first 4 cars were GM and now my favorite "toy" car is GM, but I can pretty much guarantee I'll never own another (I'm not a "Vette" guy...) The company isn't listening to the customers and is far too worried about how they stand politically... |
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Regardless, this exhaust is way better than my 2014 Mustang stock. That had resonators, and the mufflers were big heavy things that were whisper quiet. Not to mention we get a factory tri-y setup. |
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