idle issues with pictures ?? new to silvias - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

9d6silvia · 01-26-2016, 08:31 PM

I just bought a 1996 s14.5 with a ka24det. I shopped for over 3 years before finally buying a beautiful s14.

it had some issues right off and one of them is a huge topic but never a solid answer with a picture. I have a draw threw z32 maf, with a recirc and the car does not idle on decel..

I researched and researched and I think it will be most helpful to just ask and show my exact situation. I want to know if it is the m.a.f placement that is causing this.? it is 10.5'' away from turbo and the recirc is after the m.a.f
and if I posted this thread incorrectly or in a wrong way please let me know.

link to photo
Attachment 90509

http://i66.photobucket.com/albums/h2...pswb0llyze.jpg

cotbu · 01-27-2016, 05:43 AM

Just looking at the intake, i dont like the angle the bov recirculation fitting has and it maybe to close to the compressor wheel for that angle. I usually have them enter at a 45° angle and maybe 6"or so away mafs and compressor. Try capping off the bov on the intake and see if theres a difference.

If you thinks its the mafs distance add another length of pipe pvc even to test

I think the bov recirculated air is causing turbulence, for the mafs and the compressor wheel

Sent from my SM-N910T3 using Tapatalk

9d6silvia · 01-27-2016, 10:36 AM

I didn't think about that. I was gonna take off the record anyways but then I read that I have to have it with draw through ? Top mounts is garbage when it comes to space

9d6silvia · 02-05-2016, 01:30 PM

im going to I guess add a little to this thread. I think I came up with a solution. can I just 90 degree my pipe in front of the engine which will give me more straight pipe and more room to space out my maf and my bov recirc ? or is there a reason I cannot put piping there

01-27-2016, 05:43 AM	#2
cotbu Post Whore! Join Date: Sep 2005 Location: SWFL Age: 49 Posts: 3,318 Trader Rating: (3) Feedback Score: 3 reviews	Just looking at the intake, i dont like the angle the bov recirculation fitting has and it maybe to close to the compressor wheel for that angle. I usually have them enter at a 45° angle and maybe 6"or so away mafs and compressor. Try capping off the bov on the intake and see if theres a difference. If you thinks its the mafs distance add another length of pipe pvc even to test I think the bov recirculated air is causing turbulence, for the mafs and the compressor wheel Sent from my SM-N910T3 using Tapatalk __________________ LoverTechnologies "Half Broken Things!"

01-27-2016, 10:36 AM	#3
9d6silvia Join Date: Jan 2016 Location: north carolina Age: 28 Posts: 13 Trader Rating: (0) Feedback Score: 0 reviews	I didn't think about that. I was gonna take off the record anyways but then I read that I have to have it with draw through ? Top mounts is garbage when it comes to space

02-05-2016, 01:30 PM	#4
9d6silvia Join Date: Jan 2016 Location: north carolina Age: 28 Posts: 13 Trader Rating: (0) Feedback Score: 0 reviews	im going to I guess add a little to this thread. I think I came up with a solution. can I just 90 degree my pipe in front of the engine which will give me more straight pipe and more room to space out my maf and my bov recirc ? or is there a reason I cannot put piping there