GlenL

Here's an old thread on my try at the open air filter box top.

https://rennlist.com/forums/928-forum/146484-race-air-cleaner-top-project-2-a.html

Please note the results: zippo! It sounds cool but the dyno showed a Hp loss. That'd be due to sucking in hot air which wouldn't happen at speed. I've tried it at the track with no sped difference. Like I said, does sound cool.

Bill Ball

Hey, that would be great.

Regarding the hose, McMaster-Carr sells the flex-tubing Andy used on his intakes. the 3 1/2 inch is PN 5499K248.
http://www.mcmaster.com/.

Go there and pop the PN in the search window. Sorry, I need to go read Porken's comment on how to link these products....

But it would be better to use a 90 degree aluminum elbow and 3 1/2 inch coolant hose with clamps.
PN 4672T18
PN 5285K122

Tony

Nicely done! Ive been waitng to see someone do this. Make sure that thing is tough...the suction generated by a TS will put plenty of stress on it!

Giovanni

I am leaning toward 3.5" coupler at each with a 90 degree elbow pipe in between and considering a rubber coupler below the strut bar for extra clearance. McMaster has a limited assortment of hoses when it come to 3.5". Ideas?

Imo000

When it comes to 3.5” hoses and tubes the selection is very limited. I found this out during the supercharger build. This size is too large for regular automotive applications and too small for a large truck. Go to you local Mack/Peterbuilt/etc. dealer and ask them if they have anything that will suit your needs. Better yet would be if you could find a large truck wrecker in your area. This way you can just go to the yard and start looking through the big rigs for the tubes/hoses that you need.


You should be able to find a 3.5” mandrel bent 90 degree elbow at the Mack dealership. I bought mine for around $40. After cutting out the elbow I had enough left over to fabricate a catch can for the crankcase.

AO

Yep. Sure will.

bcdavis

Another advantage is that any water that flies into the front grille area, will have a hard time going upwards into the intake. And even if it does, the actual filter will provide another barrier to large droplets. This would be a good thing to make copies of, for all the people with supercharged cars. The other really cool thing is being able to use the stock filter.

Bill Ball

Gio: Sorry abou the broken links in my reply.

If you go to McMaster
http://www.mcmaster.com/.

And pop the PN 5285K122 into the find window you will see some heavy duty 3.5 inch hose. I use it on my intake.

And I use this aluminum elbow: PN 4672T18

Giovanni

Bill, I surfed their site for almost a whole hour :-) and it was a very pleasant experience. I pulled the parts numbers that you posted but they are a little pricey. I will stick with the piping idea for now.

The unit has 4 layers of fiberglass cloth and the round section has 3 layers (if I end up making more this will also be 4 layers) so it should hold together

all4woody

GlenL,
The setup Giovanni is completing will sit on top of the radiator with the filter pulling cool air from the front and the hose connecting in the rear. Your setup was open to the engine bay, which is like we currently have with the cone filter on the Supercharger. I will fabricate a plate for the top of the radiator that will seperate the front of the radiator from the engine bay, forcing fresh air into the filter or through the radiator.
Giovanni,
I was originally going to have a 90 bent from 3.5 in aluminum, then connect with a small peice of tube... do you want me to get you one? As far as the filter...duck tape? : )

Have a good one. Woody

Giovanni

Woody, and I just sent you a PM.

I can get a 90 bent coupler and a straight coupler at the MAF. Or a straight coupler at each end with a 90 bent pipe.


And Woody did not like his design :-)).

Tom Cloutier

Hi Giovanni,

I've been more or less out of commission for the last 2 yrs, but here are some pics of some intake snorkels and experimental intake systems that I've built. The carbon fiber model never saw its way onto my car because back then I was determined to cut nothing on the car. I built the mod intake with the aluminum & fiberglass snorkel about 3 yrs ago and, after spending an inordinate amount of time trying to find a solution that didn't involve any irretrievable mods to the car, I decided to cut the fan shroud and anything else as necessary!

Because of the severe space limitations I went with a K&N filter that is smaller than the stock unit. I tried gutting a MAF and mounting the necessary parts inside the snorkel, but this was met with some odd turbulence that forced me to mount a stock MAF at the rear of the snorkel. This in turn necessitated the quick and dirty fiberglass transition from snorkel to MAF. Seems like the flex silicone tubes are 3.25" dia. Ford throttle bodies.

I was very careful to make certain that no where in the snorkel was the cross sectional area less than about twice that of the MAF. And I paid attention to trying to maintain smooth and efficient airflow. In the round tunes, for instance, I used diverters to guide the air smoothly around the corner. I spent many hours in Solidworks and making several poster board and aluminum models before building the real thing. I realized 20 - 30 hp gains on my car and another, but only around 10 on Kibort's car which must have an intake system that had been massaged by the factory.

Good luck!

Tom Cloutier

GlenL

Let me be clear about the point:

The long pursued and shared idea of improving performance by improving the intake system (filter, housing and tubes) has been shown to be a failure when the engine is producing less than 340 BHP. The dual tubes, with the venturi, and the large filter flow very well and also access cool air. There's no restriction in performance with the stock system below that level.

Having a stroker, turbo or supercharger is another issue. Doing it for fun and looks is another issue as well. Heck, I still tote my set-up to the track and occasionally put it on. Adds some extra sound to the engine. No extra power.

hacker-pschorr

Keep up the good work. I'm interested in seeing a setup like this for my track car once I bolt on the supercharger.

Bill Ball

I saw Bill Wilson's Koenig this weekend at Sharktoberfest, although I didn't get to look at it closely. Anyway, from these pics, he appears to have his filter, or his intercooler, sitting BEHIND the radiator, facing up, like the stock filter box orientation, with just a snout top going over the radiator. This would mean only the base holding the filter has to be sturdy to resist vacuum and the rest can be rather thin-walled. It could make the lid fabrication and attachment easier. In fact, the lid appears more like a deflection plate to capture air coming over the top of the radiator. This could be very simple. Sure, the filter box would get heated being behind the radiator, but with good airflow, not much heating would occur and the air source would be cool air.