Fuel

[bidibronco]

If you had no choice would you run lean or rich on your fuel? What is the pro's and con's of both? Let us all know...

 

[Yardape]

Running lean causes detonation which can cause internal engine damage, like holes in pistons. The bad stories you hear about nitrous is almost always cuased by a lean condition, adding too much fuel is better, just causes bad gas mileage, stinky exhuast, maybe fouled plugs at worst.

 

[Seabronc]

What prompted the question?

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[bidibronco]

Since I rebuilt my motor I haven't gotten a fuel pressure guage to see what I'm set at so I just made it run rich due to the stories about holes in pistons and such. Now when I idle it seems to be missing and anything under about 1800 or so RPM I get the acasional jolt from the hit it's giving me. I don't drive it alot, just to and from work right now since I'm a bit tight on money and that thing gets next to nothing for fuel economy (but I didn't buy it thinking it will be a gas saver). It's also seeming to **** my speedometer when it gives me a good miss? Could it be the tranny, t-case or rear end just making me think it's a miss? I apriciate any ideas and I have to trouble tearing things down to make sure it's good. Thanks in advance!