Need help with initial VE table for E38 GS Vette with 2bar SD OS/YSi supercharger.

[Snyper]

Ive attached a copy of the start file that I will be using for initial start up, but since this is my first time tuning VE on an LS3 type car, I literally guessed at the VE table. The setup is a 2012 GS Corvette, 408 stroker/LSA heads, ZR1 map sensor, 227/242@116 cam, YSi supercharger (starting out at 12psi, switching to 20 once broken in) and 92# injectors. I have most of the start up good to go, just need a little help if anyone has a better VE table. This is an upgraded OS, so theres no virtual VE.

[mowton]

Ive attached a copy of the start file that I will be using for initial start up, but since this is my first time tuning VE on an LS3 type car, I literally guessed at the VE table. The setup is a 2012 GS Corvette, 408 stroker/LSA heads, ZR1 map sensor, 227/242@116 cam, YSi supercharger (starting out at 12psi, switching to 20 once broken in) and 92# injectors. I have most of the start up good to go, just need a little help if anyone has a better VE table. This is an upgraded OS, so theres no virtual VE.

Looks like the right shape and all. Recommendation is to tune the non boost area and get some good numbers for as many rpm connected cells as possible. This will allow you to use extrapolation to validate the higher VE values and get them close(er) before you actually venture off into the dark side :-). There is a linear relationship between VE and RPM so you can trend the tuned area and develop the higher MAP area's based on that delta trend.

Ed M