Tbi air cleaner

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Schurkey

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I'm not sure how else to explain this. When you're not moving, where does the pressure you're talking about come from?
No pressure at standstill. Minimal pressure at low speed. Enough pressure at mid/high speed to make it worthwhile for OEMs to use that area for the HVAC air intake on nearly all vehicles since the '50s or even earlier.

Yes, I've heard plenty of folks complain about overheating at medium/high speed. Watch the forums, it comes up frequently.
 

351FUN

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>No pressure at standstill. Minimal pressure at low speed. E

Now you got it.

>Yes, I've heard plenty of folks complain about overheating at medium/high speed. Watch the forums, it comes up frequently.

And like I said, those issues are from issues with the cooling system. When everything is working properly the stock cooling is more than enough at speed.
 

AuroraGirl

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>No pressure at standstill. Minimal pressure at low speed. E

Now you got it.

>Yes, I've heard plenty of folks complain about overheating at medium/high speed. Watch the forums, it comes up frequently.

And like I said, those issues are from issues with the cooling system. When everything is working properly the stock cooling is more than enough at speed.
too bad they didnt have northstars when they had overheating, just drive an hour or 50 miles on an engine with no coolant in it.
Just runs the engine in banks at a time and uses the other half to pump air through it
 

GoToGuy

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In the GM parts it is referred to as a " silencer ", to reduce intake air noise. Mines sitting on the shelf, replaced by the 20$ slipon convoluted tube. And yes it has a little louder intake noise. Good luck.
 

AuroraGirl

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Northstar GMT400 swap when
well if you get a shelby crate and probably an adapter you can prob use a 3800 rwd 4l60e(No idea if those were different than sbc, if not, then nvm) and the PCM couldnt control it,but easy enough to use a controller. Starter wont be a problem externally, but mounts would be the question. There is a mount on them front and both sides, and robust in the rear. The rear and front ones would have to left/right mounts, and I think 2wd gmt 400 are a little busy down there?
The engines sit pretty low so it maybe could sit up higher? With respect to other areas needing clearance lol.
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oh my
 

cc333

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Yup, but like I said cooling at speed is never an issue unless you have something wrong, and that's a different story. Idling in traffic, working in the woods with the winch, stuff like that is where cooling gets harder and having a vent helps.

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Or I just hit home depot for some vents lmao.
That's a decent looking Ford!

Shortly before I found the '94 Sierra, I looked at an '80 F250. It was painted flat black and had way too many maintenance issues to be worth our while. The engine started easily and ran well, though, so it wasn't anything that couldn't be fixed.

Sometimes I wish I had bought it. It seemed like it'd be a perfect truck to learn to do repairs on because it's so simple. The Sierra is pretty good in that respect, but the '80 Ford is even simpler, with no electronics anywhere to be found.

c
 

Schurkey

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Anyone with a cowl-induction style hood.

The OEMs always seal "cold-air intake" plumbing to the engine induction system so they don't screw-up underhood airflow. Chevy used "cowl induction" from the high-pressure area at the base of the windshield, with ducting and seals onto the air cleaner assembly. Or look at the GMT400s. My '88 K1500 uses a sealed ductwork from air cleaner to passenger-side front fender, which itself is fed from an opening at the front of the vehicle. Olds "Ram Air" took high-pressure air from under the front bumper with ducting to the air cleaner. Other companies did things differently--sometimes using "cold" but low-pressure air ("Shaker" hood scoops, I'm looking at you...) But they were always sealed to the air cleaner somehow.

When the OEMs want to vent the engine compartment, the vents are in the middle (front-to-back) section of the hood, in a low-pressure area that doesn't screw-up airflow through the radiator. And most of the time, they've got some kind of under-pan with a specific drain arrangement so the engine doesn't get wet when it rains.

Point being, companies with actual engineers don't just carve an opening "somewhere" and hope for the best, like many "Hot-Rodders".
 
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