Hi Guys,

I'm looking at picking up a 350Z in about 20mins, but something that a friend of mine had mentioned earlier has me thinking. This tech friend of mine said that he heard that 350Z's run lean on a couple of the cylinders because of the intake manifold not being an efficient design? Even in stock form. I did a quick couple of searches but didn't find anything on here to confirm or deny what he's saying. Can someone with some 350Z knowledge comment on whether this is true or not, and how to prevent this if it is true?

Thanks!

 

tell him to go back to his crack pipe. z's are safe from the factory. You may run lean once you start modding it, if that.

 

Actually, the problem is that the two front cylinders run rich, not lean. That is what spurred the development of the modified plenums (Crawford, Kinetix) then the spacers (AAM, Motordyne). They allow more air to the front two cylinders to lean them out a little.

 

^^^ yes what he said

 

Good luck with the new Z. What ever you do, do NOT take it to your "tech friend" when it comes time to modding it. He'll probably have you all jacked up if he basis his work on what he's heard

 

Ok, good to know. I appreciate the reassurance. And yes, I got the Z. A 2004 Daytona Blue 350Z w/ 14k miles on it for $25k. I love this car