anyone have an OBD2 scan tool (look at live data if your tool supports it) to have a look at there long term fuel trim on a pullied car? curious to know...
the 4psi fuel reg i think is making it run quite rich across the range robbing power. i do realise this is prob needed top end. (i will find out on dyno this weekend).
my long term fuel trim is -8% now and it looks like its settled to that. the ecu is leaning out the mixture and doing a fair bit of correction because its rich. before removing restrictions in the intake it sat -4.6% still bit rich...
depending on the outcome on the dyno this week i was thinking popping the stock 3.7psi one on and getting a piggyback ecu to tune it. this will prob squeeze out a tad more power of my setup.
i think the 4psi reg works fine on a stock airbox/stock setup because partly it was desgined for that. altitude from sea level plays a part... look -8% correction wont end the world but idealy you dont want the ecu correcting +-10%...... from factory air/fuel map.
currious to see what others are getting?
the 4psi fuel reg i think is making it run quite rich across the range robbing power. i do realise this is prob needed top end. (i will find out on dyno this weekend).
my long term fuel trim is -8% now and it looks like its settled to that. the ecu is leaning out the mixture and doing a fair bit of correction because its rich. before removing restrictions in the intake it sat -4.6% still bit rich...
depending on the outcome on the dyno this week i was thinking popping the stock 3.7psi one on and getting a piggyback ecu to tune it. this will prob squeeze out a tad more power of my setup.
i think the 4psi reg works fine on a stock airbox/stock setup because partly it was desgined for that. altitude from sea level plays a part... look -8% correction wont end the world but idealy you dont want the ecu correcting +-10%...... from factory air/fuel map.
currious to see what others are getting?