As title states its a 2018 SS, ported heads, bigger cam, LT5 throttle body, MSD intake manifold, longtube headers, corsa exhaust. Having trouble with timing dropping at idle to -5 to -8 degrees. Have VVE pretty dialed in at low to mid range rpms. Any advice on corrections for this? Have a feeling its mostly due to the bigger throttle body at this point in time, but dont know what data to stuff in since i cant find a 2019 ZR1 file.
Post tune.. I’m guessing stock VT and VVE
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96 TA Blown/Stroked, 4L80E/Fab 9
15 C7 A8 H/C 2.3 Blower/PI
14 Gen 5 Viper
Custom Mid Engine chassis, AKA GalBen C
Here's the file. Probably right on the stock VT. I only had a bit of time to spend with the car tonight, and I have next to no experience with big cam gen v cars.
Get your VT table dialed in for the cam and it will go back to desired timing.
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