what would happen if the spark plugs got reversed '

trailing in the leading
and leading in the trailing

 

It would run like crap. Depending on how hard or long you drove it like that it may or may not damage the engine. If it was just for a couple minutes you should be ok.

 

Do you mean the wires or the actual plugs? If its the plugs, it shouldn't really matter.

 

if its the wires wouldnt it misfire? but i can be wrong
be a little more specific

 

If he puts 9s in the 7 holes and 7's in the 9 holes it will just run like crap. Plain and simple. If the wires are reversed, same situation, but worse for the engine being that the timing and all will be thrown off.

 

Really? Are they really that different?

 

It will run fine up until the point where the 9s in the leading holes get fouled because they're a colder plug than the 7s. Not hot enough = carbon buildup & eventual misfiring, too hot = melted plugs & detonation.
http://www.ngksparkplugs.com/tech_su...2.asp?mode=nml

This thread really should be in the tech section too.

 

shouldnt this be in the 2ng gen tech?

 

i gota get new plugs today they are like $40 a set of 4 right?

 

yep

 

when you say run like crap do you mean just a big loss in power

or will there be like a noticable jerking or w/e

 

It shouldnt run like crap. I use to run all 9's in my 3rd gen on purpose.

 

Misfiring will be noticeable. You'll get a really shitty lumpy idle, if at all and if you were to apply any throttle it would also rev up in a similar manner. You may not even be able to take it past a couple thousand rpm which is kinda good as im sure anything past that would be reallly bad for the engine.

Im referring to if the leading and trailing wires were to be mixed up

 

If you have a hotter plug in the trailing slots and colder plugs in the leading slots it will not run to spec. If you were to run all 9s in leading and trailing it would run ok, but foul out quicker and maybe not have as much bottom end power on a standard NA. If you were to run all 7's then it has an increased chance of detonation.

 

You probably won't even notice a difference...