Fox Do I Need A Tune ?

[ravensfan]

i have a 92 mustang and just changed everything but the block,, gt 40 heads, mass air flow meter, throttle body, upper and lower intake, 24 # injectors, F cam,
I guess I have a 2 part question,, should I get a tune from a speed shop ?
does anyone have the tuner chips you can buy and just " plug and play " Are they any good ?
thanx

 

[Onefine88]

Take it to a local speed shop and get it on dyno to accurately dial in the air/fuel ratio for your new combo. Plug and play tuner chips are a waste of money IMO.

 

[stykthyn]

Honestly if you have the matching meter for the 24s your ecu should easily handle those mods. I see no reason you would need a dyno session or a tune.

 

[madspeed]

don't see anything in there that warrants a custom tune. The factory computer does a pretty good job adapting. Be sure to set your base idle and timing with fresh plugs etc and she should be good to go

 

[Chuckman]

As the others said, it will run fine, and perform well. But a dyno tune can help maximize what you have, tell you were to shift, and point out anything causing problems less noticeable by the butt dyno.

 

[ravensfan]

ok thanx to everyone