Gotts mod impossible
04-16-2018, 01:09 PM
#21
Senior Member
Also, you make sure to run the correct schedule 3", scheduled 40 is a little too thick. Have to use the septic pvc. It's a little smaller in total circumference and will fit the factory opening in the engine compartment. With 40 you have to have to widen the opening, that's a PITA. I know, built my own intakes from scratch at one time lol. 3 of them to be exact. One of them I used exhaust piping. Almost 15 years ago for these trucks lol. Still have the pics.
04-16-2018, 02:30 PM
#22
Senior Member
Originally Posted by white89gt
With that, he is still going to pull through a 2.5 inch hole though. He is better off getting the newer style box.
04-16-2018, 03:22 PM
#24
Yea I did mine so that I have a direct 3" flow...non turbulent. To do that , you have to fit the PVC inside the box. I did this before the Gotts mod came into the picture. It's solid and will never fall apart, -
https://www.f150forum.com/f6/engine-...9/#post4628445
https://www.f150forum.com/f6/engine-...9/#post4628445
04-16-2018, 05:55 PM
#25
Senior Member
Yea, 3" thin wall, non-perforated, non lined septic. The stuff is used from building to tank, tank to field and also field header pipe I believe. See, I follow my shiiii as well 
Last edited by Jbrew; 04-16-2018 at 06:05 PM.
04-16-2018, 06:55 PM
#26
04-16-2018, 10:11 PM
#27
Senior Member
I think mine is ABS, IIRC. For some reason, I was thinking it was 4 inch though.
04-17-2018, 01:10 AM
#28
So i bought 3 inch tubing and pvc pipe, opened the hood and fitted the pvc pipe in the hole kn the firewall, but i noticed the tube coming out of the airbox is like 2.5 inches and the rubber tubing goes wayyyy over it, and they do not make a 2.5 inch tubing, so im at a loss for what to do here
Edit:
I found old pictures from when I did it.
Before (Stock Intake Hose):
After: (Rad Hose)
After (Rad Hose Installed):
Last edited by JustinB; 04-17-2018 at 01:22 AM.