Anyone have pic's of installed Hypermax system or use the Hypermax cowl air induction for a 94 IDI factory tubo?

 

i just bought one the other day...its going on a 1993. im not really sure where it goes...so i sure hope the thing comes with instructions. ive heard alot of people on here say it isnt worth it...but i bought one anyway. it hasnt arrived yet but ill try and get some pics up when i get it installed. but if anybody else has pictures i would sure like to see them.

 

Thanks 1957F100. Please post about how it works out.

 

I have a homemade setup that I have been running for over a year with no trouble. I cut a 4in hole in the firewall beside the mastercylinder and used aluminum dryer duct to hook to the factory air box. EGT's are lower and climb a lot slower than with the factory ducting. Also gained 1psi boost from it.
I dont know how to post a picture here or I would.

 

I installed the Hypermax cowl induction setup yesterday afternoon. Yes, you get instructions in the kit. You also get the 'high impact plastic' scoop thingy, 14" of black rubber wire-reinforced duct hose (kinda like what was used on old cars for heater ducting), four hex-headed sheet metal screws, and two strips of perma-gum.

The kit actually arrived last Wednesday. I read thru the directions several times; seemed pretty straightforward: Reroute the vacuum hoses, windshield washer hose, and two small wiring harnesses. They go over the brake booster. Take them loose from thier holders on the firewall and route them between the booster and the master cyllinder. The intake scoop will mount directly above the booster.

OK, what I discovered was that the scoop didn't quite fit between the booster and the edge of my cowl. I ended up taking the cowl loose (it's held on by screws) and lifted it up so that the upper edge of the scoop fit neatly. I also had to trim a small amount off the bottom edge. It wasn't the simple one-two-three-and-you're-done that the instructions seem to imply, but it also wasn't brain surgery. In all, it took just a little under two hours from raising the hood to shutting it.

My impressions:
1. I gained at least 8 horsepower and throttle response is unbelievable!!
2. No smoke, ever.
3. Beautiful women immediately flock to the truck whenever I park it.
4. I got a raise this morning!

Yup, you gotta install one of these. You simply won't believe the results!!

 

oh man i wasnt sure what to expect since ive heard many people say it wasnt worth it. but after reading your post i cant wait to the this damn thing on my truck...

do you have any pictures of this thing...i cant wait for mine to arrive...i want to see what it looks like now haha

 

I'd also like to see how it mounts. We have a '93 with an ATS and the stock inlets are pitiful by the time you get to the end of them. They had to squish them so bad to fit between the hood and the radiator cowl that it looks like they cut intake volume in half.

 

OK fuzzy, before you get too pumped up - I WAS JOKING!
1. I didn't put my truck on a chassis dyno, nor do I have a calibrated butt. No hp increase.
2. ALL NA motors smoke - some more so, some less so. Mine still smokes.
3. Beautiful women do NOT flock to my truck just because it has a Hypermax sticker. I didn't even GET a sticker!!
4. A raise? I wish.

Like most folks on this list, I've heard amazing claims about various bolt-on goodies. Some are more accurate than others. I thought it'd be a hoot to parody some of those claims.

OK, here's what I REALLY noticed:
1. A LOT more intake noise. My soupbowl has been removed, and combined with the cowl setup, you can really hear the intake roar inside the cab now.

2. The short piece of rubberized duct hose that came with the kit wasn't long enough. It began slipping off of the air cleaner inlet. Any torque load to the engine would have cause sufficient rocking to pull it completely off. I simply reused my old flexible inlet hose. Not sure how effectively it'll seal, but it seems to be OK for now.

3. I can't feel any difference in how the truck drives. Accelerates the same, smoke seems to be the same both around town and out on the open road at 65 - 70.

4. No idea yet about fuel mileage. This weekend, we're pulling a 12' trailer loaded with furniture from Tyler, TX to OKC. We'll leave the trailer there, so, I'll have a great chance to see how it runs under load and just cruising. Also, keep in mind that I haven't done anything to the exhaust yet. It may take opening up the exhuast flow to fully realize the increased breathing potential.

 

Aren't you concerned about water getting into the engine from there? I mean like while driving in a hard rain?

 

Sure. Diesels are REEELLY hydrophobic, so I'm always worried about that. The Hypermax instructions recommend drilling a 1/4" hole at the 'lowest point" in the air cleaner, outside the filter base. I guess the idea is that any drops of water that found their way into the air filter housing would run towards the low side, and then be forced out by the positive pressure differential inside the housing. Also, you'll notice that the scoop intake is right at the top of the cowl. The area under my cowl vent goes quite a ways down behind the firewall. There's also a drain to empty rainwater/melted snow/whatever out of there, so it doesn't wind up in the AC/heater intake. To get any amount of water into the intake scoop, I'd first have to fill up the entire cowl area with water. Short of submerging the truck, I just don't ever see that happening.

 

do you live in a dry climate? Id like to try that but here in the nw with 50 inches of rain im a little scared.but a year seems like enough time for testing

 

Its already been said, but the floor of the cowl is alot lower than the intake, I was worried about mine so I checked it everytime I drove it in the rain and after it sat through a rain. I have NEVER seen one drop of water in my air duct. even if some runs in, the air box already has a drain hole.
As long as water can drain outta the cowl, you have nothing to worry about.

 

I would think the cowel mount would act like a venturi when you are flying down the road. After all, the air is rushing across the hood and up the windshield. My money is on the "ram air" setup like Dave S. built. Mine works great. When I'm flying down the road, the air is RAMMED into the breather pipe causing pressure on the intake. The more air, the better. See if Dave will post his pics of his ram air. Mine is same but I have no pics.

 

so pretty much after reading all this the hypermax cowling dont work...

 

I think it works great with a turbo. A friend of mine did the same mod to his N/A, he dont think he gained anything. The best thing you can do is to remove the factory air duct ofer the battery, even if your bringing in hot air your still bringing in MORE air. The way I look at it is, the strokers use a Tymar or similar intake that just sits on the wheel well so more volume has to offset the heat issue.