^^^x2. Specially with those public spark tables which pull way too much timing and cause excessive heat in the turbine.
Start with a stock table and subtract 2° for every 1psi of boost (or about -2° per 10kpa) - which is already conservative.
Also, VE tables pretty much never match up to another tune/engine with all the other variables in them. That's why you see some VE tables posted and they are in the ~40-110 range and others are much higher. Theoretically, "100" on the VE table should be "100% VE" - with a turbo motor, you are most certainly are more than 100% VE under boost (1bar = 1 extra atmosphere, or 200% VE) ;)
Start with a stock table and subtract 2° for every 1psi of boost (or about -2° per 10kpa) - which is already conservative.
Also, VE tables pretty much never match up to another tune/engine with all the other variables in them. That's why you see some VE tables posted and they are in the ~40-110 range and others are much higher. Theoretically, "100" on the VE table should be "100% VE" - with a turbo motor, you are most certainly are more than 100% VE under boost (1bar = 1 extra atmosphere, or 200% VE) ;)
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