S13 SOHC vs DOHC OEM airbox - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

Crazyced · 04-09-2024, 10:03 AM

I'm doing a DOHC swap in my 90' 240sx and for classing reasons I need a stock intake.

Since the one I have is very clean and parts are hard to come by, can anyone confirm that the SOHC and DOHC airbox themselves are compatible? Ie, I just need to swap the MAF, intake tube and rubber coupling to the TB?

Thank you!

AKADriver · 04-11-2024, 03:50 PM

I believe the SOHC airbox has an IAT sensor and the DOHC airbox does not. Otherwise they have the same shape/volume/etc. The lower housing the same part number the upper housing is not.

If you swap a DOHC in and re-use your airbox just plug the IAT port.

04-09-2024, 10:03 AM	#1
Crazyced Zilvia Junkie Join Date: Apr 2015 Location: Ottawa Posts: 380 Trader Rating: (1) Feedback Score: 1 reviews	S13 SOHC vs DOHC OEM airbox I'm doing a DOHC swap in my 90' 240sx and for classing reasons I need a stock intake. Since the one I have is very clean and parts are hard to come by, can anyone confirm that the SOHC and DOHC airbox themselves are compatible? Ie, I just need to swap the MAF, intake tube and rubber coupling to the TB? Thank you!

04-11-2024, 03:50 PM	#2
AKADriver Post Whore! Join Date: May 2002 Location: Springfield, VA Age: 42 Posts: 3,475 Trader Rating: (1) Feedback Score: 1 reviews	I believe the SOHC airbox has an IAT sensor and the DOHC airbox does not. Otherwise they have the same shape/volume/etc. The lower housing the same part number the upper housing is not. If you swap a DOHC in and re-use your airbox just plug the IAT port.