tom70

iTrader: (10)

Want to install a 6.0 in a Vega drag car. A tuner said to leave it fuel injected. My question is fuel injection consistent? Or do you have to write a specific program for car? I am not sure how fuel injection can stay consistent. Run a carbed 6.0 in a Camaro now and after time trials put dial on window and car runs same numbers all day.

jhshnh

Rick01SS

As consistent as a carb car on gas. They will both consistently change with weather. Depending on the weather, I can tell you exactly what my car will run before I make a pass.

tom70

iTrader: (10)

What kind of tune do you have? Thanks

tom70

iTrader: (10)

is it open closed loop program or lock out program?

nj02z

iTrader: (6)

You want olsd. Open loop speed density.

tom70

iTrader: (10)

​​​​​​How will it stay consistent with that program please excuse my ignorance have worked with carb set ups my whole life

nj02z

iTrader: (6)

No maf sensor,no o2 sensors.Your tune will have a VE table(volumetric efficient) that will use the MAP sensor and RPM to put a desired amount of fuel in.You basically take the cars ability to correct itself away.It works.#1 and #6 best package 200 plus cars.

nj02z

iTrader: (6)

wife,s car.

tom70

iTrader: (10)

Thank you couldn't figure out how it it would work but now I am starting to see. Do I set up a program from speed densidy and it will stay the same

Rick01SS

I'm SD tuned. It'll run the number over and over, if the weather stays the same.

With SD tune, your afr is solely based off your VE table with nothing adjusting it. As weather changes, you'll predictably go up and down with the weather. Of course everything you do has an effect on your ET; Burnout length, bump in, launch rpm, etc.

nj02z

iTrader: (6)

I have not switched my tune for 2 years ,same tune spring, summer and fall 45* to 90*.There are a few more tables that would need to be zeroed out.