Originally posted by Mr Jucy
what you have to remember is that the LS1s computer will take into account any mods & then reduce its performance to standard unless it has appropriate mods to trick the computer
Not entirely correct.... the amount of "power reduction" the PCM puts into effect has been blown out of all proportion. The PCM WILL NOT
reduce an LS1 with bolt-ons back to stocky power figures.
The PCM contains Abuse Management tables that come into play and pull timing if the engine/gearbox is given lots of stick for an extended period. Driving normally for a while or performing a PCM reset will reset it back to normal.
Adding headers, cat backs, CAI etc will give you substantial power increases, but the 100% benefit of those mods does not usually come on until the PCM has "learnt" the mods over a short period of time. People have reported "feeling" max power come online after about 100kms.
After adding a CAI + K&N to my car it felt immediately more responsive and revved more freely.... the dyno immediately showed a 4-5rwkw increase with this mod. A short while after, it dynoed at 9rwkw over stock - the PCM had learnt the mods and adjusted the AFR's to fully utilise the better airflow.
Either way, LS1Edit programming is quickly unlocking the full potential of our cars and removing the effects of the Abuse Management tables (pity it doesn't rebuild/strengthen the auto box at the same time :s6: )
Sorry for the rant... I can get carried away sometimes :oo1: