the last time i had my car tuned, i was peaking at 6-7psi. but the stock clutch was on its way out, as i found out upon leaving the tuner. the clutch started slipping that day. this weekend i'm adding the comptech aftercooler w/ spearco radiator, act clutch, act flywheel, and i got the comptech intake/airbox/filter on now (had the HKS mushroom filter on front of blower before). should i get my car retuned after adding all of this? i'm thinking i should since my IAT will be much lower and i might have a slight drop in boost. opinions? thanks in advance

 

it honestly depends on how good of a job your tuner did interpolating the fuel map as well as setting up your IAT corrections.

 

What did you tune with? VAFC?

 

AFC Neo

 

so as far as my understanding, driving without getting a retune won't hurt my car, but it will run better if i do get a tune. correct?

 

bump

 

bump

 

so basically, your setup is tuned via a VFPR (adding percentage of fuel for psi seen) and NEO adding a +/- percentage of fuel by tricking the map to see more or less air than whats really there. As the map has a voltage clamp that prevents the stock ecu from seeing boost, the tune for your setup is basically using no real input from MAP sensor to add fueling. So whatever you change with the intercooler and intake may or may not make the tune lean or richer etc...

The IAT's will be determined by the stock ECU, so the timing and fueling amounts will change accordingly, i guess adding more fuel and timing for lower IAT's. I would at least get it retuned, or save up and get at least an emanage, or get an EMS if you want full control!

 

hmmm it seems to be the way to go...
maybe e-manage ultimate is next on the list. but for now i will get a retune asap. but do you guys think there is potential to seriously harm something in the mean time?