24s2k7

Just wondering what would be considered a safe a/f ratio. How lean is too lean?

Emil St-Hilaire

Get it dyno tuned.
Whatever you do,do not play it by ears;way too dangerous.

24s2k7

I am getting it dyno tuned. That is why I'm wondering what would be considered too lean

Mikes256

I think I remember reading somewhere in F/I that an A/F ratio of 12 is dangerously lean, and 18 is alot better. Sorry if I sound like a noob, but I'm trying to learn as much info as I can. What would happen if you went too lean? Would the engine just stall? Wouldn't it be worse to go too rich?

wet_poo

[QUOTE=Mikes256,Mar 17 2006, 07:28 AM] I think I remember reading somewhere in F/I that an A/F ratio of 12 is dangerously lean, and 18 is alot better. Sorry if I sound like a noob, but I'm trying to learn as much info as I can.

kayvan_pour

The more lean you run, the more power you make (most of the times)... But if you run too lean for too long, your gonna burn a hole in your piston... It's a very bad idea too run too lean.. It's better to be on the richer side.

kayvan_pour

13.4 under WOT should be safe while still getting nice power!

asukadc

for NA... should be somewhere around 13.5~14.7(limit?) for max performance.. F/I ppl should run no greater than 12... running over 12wot, with boost u are walking on thin ice.

S2000_Europe

12:1 at WOT is ok

14-15 at partial throttle is ok, driving on the street