change to FMIC??

[BlackMS6BTO]

Im gonna be doing a custom FMIC here in the next few weeks. what all has to be changed with the tuning (i have AP) when switching to a vta bov?

 

[2088 MSP]

y would u need to change anything?

 

[bova80]

don't run your bov vta, nothing needs to be changed but you'll run rich on shifts and its just not the way this car likes to be run.

you will probably have to recalibrate for your fuel trims.

 

[Navy_Mech2]

I would probaby re-cal my MAF afterwards just to be safe.

 

[zinger002]

This is really not necessary, my car ran pretty close to the same afterwards. it took about a 5-6% change in maf cals for me to get back to where i was before. 5-6 percent change is easily what i see from summer to winter.


If your famaliar with atr disregard the rest, if not read on.

easiest way is to run your car, get the base LTFT, take your atr values, hi-light, control+c them and put them all in excel just as they appear in ATR. Use the formula "=A1-(A1*0.05)" **( change the percent value as necessary )** and drag it across all cells to get a general cal across the range. this saved me lots of time. You might need to go in and tweak each breakpoint after but that only comes as you drive your car more and more. Then just copy and paste it all back into ATR. Just to make sure i was on the right track i told excel to format to 4 decimal places, and ATR also kept those 4 decimal places, i think control+e is the key to enter a direct value.

 

[BlackMS6BTO]

wow... ya i will prolly just run recirc still or just have it tuned by a professional cause i have no mazda tuning experience... mechanically i can fix or mod whatever but i havent really done much tuning... not with the AP anyway. the only other car ive done any tuning on was a turbo mustang and we were using a PMS. any good shops near chicago or STL... im right in the middle of both cities so..?

 

[Speed_J23]

There's P&L for tuning with the AP, there's GRD who tunes on the AP and CP-E standback, and I think AMS tunes the Standback.