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New Upper Intake

6.5L

6.5L

Old Iron Runner
Messages
1,177
Reaction score
433
Location
Northwest Wyoming
I've had this plate and pipe sitting around for a while now. Figured now that I am on break from college I'd do something with it today. Took some time getting the angles right. 90* bends weren't exactly tight. Had it TIG welded by a local place. The welder really knows his shit. Turned out absolutely beautiful. A work of art. For a damn decent price too. Plate is 1/2 inch thick aluminum. Pipe is 2.5inch OD, 2.25inch ID. Original intake is 2.5inch OD, 2.0inch ID. I have always felt the factory upper intake plenum could never flow worth shit. I firmly believe this will flow a lot better. And to be honest I have noticed a difference. Not so much puttin around, but above 2000rpm and anything above 10psi it seems to pick up a lot better!


Intake 2 crop.jpg
 
I know I need something better but for now this is how it runs. Runs good too. I may be mounting my water meth system over on the passenger side so once that gets mounted I will see what room I have and go from there about a better airbox system
 
since you don't seem to be towing a lot it's probably OK. High underhood temps come from working the engine hard ie towing
 
Add to it the fact that it's winter time in NW Wyoming, I doubt that the motor minds rebreathing its own heated air.
 
It is actually a lot smoother a transition than it looks in the pictures. And also the pictures make it look like it "humps" up more than it actually does. I have always felt having the stock intake that pinches down wouldn't flow well under boost and high rpm. Never worked for OBS 7.3L Fords on there downpipes to pinch down. Somebody had mentioned if the stock one would distribute air better and I feel like it wouldn't really. Stock one aims at the back of the intake. At least with my design I feel it is a little more direct in the middle. Not perfect but about as close as I could get. Even distribution I feel. I noticed a little more torque at mid-upper rpm range. Not super noticeable but I have driven my truck enough to know when something has made a difference.
 
I like it to. I was going to do something real simular years ago with a 6.2 type intake. I never did and sold it to Drago.
 
I'd like to be able to make a few of these and sell them but it seems fairly turbo specific to the HX35 I am running. Plus it would be next to impossible to duplicate I think. It was hard enough to make as is as far as alignment haha
 
I might copy your design for the ATT. Wanna sell the patent rights?:hihi: I've been making the adaptor for ATT, but man is that alot of hours to build one.
 
Why, of course I'd be willing to sell the patent...for the right price hahaha That would be sweet to run with with an ATT. Would have to be a slightly different bend but would not be bad. The more I think about it, the more I am glad I got the loose bends in the pipe and not the tight bends I asked for. Should help flow more that way. You can call it the BHAP (Big Honkin Air Plenum haha). Then a certain "6.5L specialist site" (you can abbreviate Specialist Site if need be) can buy it, slap there name on it, and find a way to mount the PMD to it haha
 
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