NGM

So you are "writing your own tunes" How are you reading wideband? What dyno are you using? you are changing canned tunes.. That is different from custom tuning a truck.

blackbetty

you know what ngm...i was going to say alot of stuff...but i didnt think it would be even worth it. your all over it bro

kaboom10

I'm falling back on the way I used to tune/calibrate carbs-experience. The LiveWire has the capability to read wideband and datalog. It also has a horsepower/torque reader that is good for comparing progress. I also have the capability of reading accel G's for comparison. It's not a chassis dyno but there is a long stretch of road nobody travels that works well. When I'm satisfied I'll go down to Livernois Motorsports for some numbers to see.

blackbetty

i use the livewire...

it has the ability to tweek, not tune...

and the dyno...eh lets put it this way...it says i put out 5.4 numbers

NGM

There is no replacement for a good custom tune done by someone who knows what they are doing. Why be cheap with your second highest investment. 150.00 for custom tunes is not a bad thing. BTW stock 02 sensors are not wideband in Fords.

kaboom10

You can tune from stock if you want but that's nothing but a big tweak.

kaboom10

It gets me into the ballpark where I'm close. I've done the tuning on street/race cars when I was doing carbs with no problem. FI fuel/spark tables have to render the basic same curves as for a carbdistributor but the injectors are a lot more efficient than a carb and tables are a lot more precise than a mechanical unit. The LC-1 wideband gives the readings. Stockers are good at trimming fuel to stoic.