Sorry in advance if this is a repost. I have searched extensively and not found a thread that addresses this problem. JWT has a tech bulletin on this and I wanted to find out if anyone else had the same issue, what did they do:


350Z_DECEL_STABILITY_FIX.PDF

1) Config is Stillen Intake (or JWT) with venturi ring, cone filter, Stillen enclosure and stock Z tube (no special intake piping). JWT light FW, too.

2) After installing intake I notice the revs coming off both higher speed and higher rpm, such as pushing in the clutch and getting ready for a 90 deg turn off a main road, the revs die so quickly that they drop to 200 rpm, and once and awhile, drop to 0 rpm at which point you're now w/o power steering, EBD, brake boost, etc, trying to restart the motor and turn at the same time.

I could raise the base idle which dropped a little w/new FW, but that wasn't an issue until the new intake. Previously I had the stock airbox with a K&N drop-in, so it wasn't radically different. JWT has some plumbing advice which I can do but am not sure I understand why it's needed.

Any advice appreciated, thanks in advance.

 

So did you try the the 350z idle stability fix yet?

 

I've picked up the tubing and parts, I wanted to check here first to see if this is something others have run into, so I'm more confident I'm on the right track.

I plan to, I just want to get a better fitting for one of the pieces recommended in the tech bulletin. JWT recommended a brass fitting, all I have found is plastic for just that part.

Thanks

No one else has had this issue???

 

C'mon, someone must have this problem adding an intake AND JWT FW or other lightweight FW???

 

From my understanding it has nothing to do with the FW; it's just the intake. I don't have one though - so I can't really help. Sorry.