EFI twin snorkel setup

Quote:

---

Originally Posted by POD

Are you going to graft a couple of plenum chambers together and have twin throttle bodies to go with the twin snorkels?
My home-made 3" snorkel fed plenty of air to my EFI 4.4 and now does the same to a 3.9

---

Nah was just planning on single throttle body with a twin outlet air box and snorkels

I reckon twin snorkels would slow you down more by increased air resistance than any gain from extra air flow! The 4.2 is still a small bore motor and one 3" snorkel will be fine. Just pay attention to bends and junctions, make sure they are smooth transitions.

is there enough room to run the drivers side across inside the scuttle panel and join the pass side via a Y piece then just run to the airbox as one pipe as per normal??

i vaguely remember hearing of someone doing it this way on an EFI setup.


That orange 2 door on 37's has twin snorkels and efi, someone on here now owns it, maybe they have pics??

Quote:

---

Originally Posted by Ye Olde Rangie

Hi all tomorrow ill start my custom snorkel setup, so my question is firstly is 3" enough air feed for a 4.2 stroker motor, if not ill be building a custom airbox and run twin snorkels but my problem is that my car has very little room under the bonnet left so the airbox is easy enough but im wanting to know whether anybody has done such a job and do you have pictures.
Thanks Tim

---

Tim I will post a pic of my setup on a 4L (with 3.5 EFI), my setup is 90mm because that is the size of the downpipe fittings I used, no problems with airflow, esp if using round air filter housing and plumbing in the end like I have done, Regards Frank.

https://www.aulro.com/afvb/images/im...12/09/1082.jpg

Can't go through there on a Rangie though due to wrap around bonnet, but can apply same idea.