I have already dyno tuned my car but i installed a gt uprev maf for some reason..so, i need a complet dyno retune or just retune compensation map ?

thx

 

Both. Whole retune.

 

Ok, that influences also the timing map..? :S

Thanks

 

no it has no affect on the timing map, but will affect both your MAF table and fuel tables if i'm not mistaken.

 

You should recheck timing after adjusting fuel, because the ECU calculates actual timing based on the amount of fuel flowing. Remember, you're not plugging in actual timing numbers, you're plugging in 'burn time'. The ECU calculates actual timing based on the amount of time it would take X amount of fuel reach MBT. So changes to fueling WILL affect timing.

 

thank you for correcting me on that. This also makes sense to the values that are in the the timing maps as well, thanks.