Yeap, the injection system, and what would be the most expensive thing to upgrade, should be more than enough for the 250hp goal.
You assume it correctly
, I have a custom exhaust, and no problems with the said sensors.
Forget about the WMIC, I probably had intakes above 100ºC, I see no way of dropping these figures to a point where the 250hp would be possible with this turbo, at least in Portugal!
. Buy yes, I also had the some problem concerning the lag, this is what I can say: stock turbo@2000rpms = 0.6s lag ; current turbo+stock IC@2000rpms = 0.7s lag ; current turbo+current IC@2000rpms = 0.7s
Maybe the 520x240x65mm core IC would have a big impact lag with the stock turbo, but with the hybrid one is not noticeable at all!!!, maybe due to the fact that by engine is almost dead below the 1750rpms anyway! ...