Hello sound team,
The 1970 Chevrolet Camaro Z28 has audio issues that we would like to see fixed. Engine audio is completely wrong. Engine lopes after installing race upgraded exhaust that’s incorrect. No sound change after installing cams that’s incorrect. Engines sound should change or lope after cam install, upgraded heads, exhaust note should become noticeable louder in steps. Applying the centrifugal supercharger there is no sound for it even a small supercharger makes a distinct sound. Secondly you only hear the positive displacement supercharger when you floor the throttle. You should hear it the entire rpm range.
See below for better explanation.
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Stock sound cam and exhaust
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Mild modified heads and cam stage 1
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Mild modified heads and cam stage 2
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Heavy modified heads and cam stage 3
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Race cam stage 4 / race engine
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In car camera view for sound-?
Supercharged for sound reference
I know it’s from mad max but the supercharger sound is perfect 
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Turboed for sound reference
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Engine swap options-? Factory engines
—- Displacement options-? Stroker motors?
—- The exhaust / restrictor plate, each upgrade should just increase the sound level - 10-20 decibels in all views. This should apply to any car… usually 80-100 sound decibels in and around the car.
After some investigation of YouTube and real life camera footage, the car does not sound authentic in the game. Can you please fix this at your convenience. Hope this helps. Thank you.