good tune?

[justinschmidt1]

Is there such thing as a good and bad tune?...is there actually more involved than just fixing a/f ratios or what?...is it possible to only get 5 hp versus like 25 from a better tuner?

 

[the98stang]

Is there such thing as a good and bad tune?...is there actually more involved than just fixing a/f ratios or what?...is it possible to only get 5 hp versus like 25 from a better tuner?

It depends on how long you want the engine to last. Most people will tune for 11.5-11.8 at WOT. Maybe 11-11.5 to be more conservative. The leaner you go, the more power you will get, but the engine won't last as long.

 

[justinschmidt1]

would it really shorten the life of the engine that much...ive got 95,000 on it...but I dont see the engine going any time soon...

 

[the98stang]

would it really shorten the life of the engine that much...ive got 95,000 on it...but I dont see the engine going any time soon...

On a naturally aspirated engine, probably not. But why risk it? You need to check your compression before modding it, and putting more stress on the engine with lean tunes.