Have finally compiled all the parts for my true CAI. Had them painted and clear coated by my body shop and hopefully will install late next week. Also put sealant and wax on all parts. I will be using a professional fabricator to do the install. No guarantee on the paint so a visit to the body shop after the work may be required. Using the smallest carriage bolts I could find so there are no screw heads exposed. My biggest concern will be too much noise from the SC since I’m using a Roc Euro intake and the NACA duct will be directly over the Roc Euro air filter. I decided to go with a smaller/finer mesh for flexibility and also to reflect light so the hole is not quite so obvious.
Will you be driving the car when it rains?
I’ve thought about that! Either I could cap the end of the inlet, leaving it that way until racing or use some scat hose running the hose below the intake and putting a drain in the engine pan. Also, possibly leave it open and get some free water injection?
Take a look at this photo, I used to own this thing. The device in the left inlet, as you look at the picture, is the oil cooler. Lower center is the air intake form the engine using an oiled air filter like a K&N. In the right inlet is the top of one of the 6 cylinders of the Continental engine. The two square devices on the underside of the airplane are called cowl flaps, are moveable and used to control cylinder head temperatures. Aircraft just like this having been flying in heavy rain for decade after decade. Also, don’t most people use a pressure washer when they clean their engines?
Sky, can you please go take a bunch of air mass logs so we can compare before and after numbers… Get timing, a few cylinder retard, iats and boost… Record ambient conditions and da also… Would be cool if you could take the logs on the same road or better yet at the dragstrip? Let me know if I can help…
interested to see how this comes out, you could always just replace the hood if you don’t like it or if it doesn’t do anything useful, its just money. It might actually look cool! fun to see folks experiment.
I think K&N still sells a thing that looks like a hair net that you put over the air filter to prevent water from getting in. Just in case you are really worried about it.
Comparing cars to airplanes…
You can’t be serious about the pressure washing statement. People don’t spray the pressure washer into their intake, in fact it not recommended to pressure wash any of the the motors considering all of the sensors and electrical connectors. Maybe some simple green and hose water to clean the bay, but spraying it down and saturating it with a pressure washer is a horrible idea.
I think this is going to look horrible regardless of how good you fab guy is.
Where on the hood were you going to put this. Make sure to look at wind tunnel testing. Most air flows over the hood the across this creating a high pressure area up twords the windshield. I don’t think the air scrubbs across the hood so you would need something to patrude into the flow. It’s too flush with the hood chances are the air will flow over it.
With your Cessna 180 the intake sits on the lower part of the cowling. When it’s standing outside in the rain, the water will just run past the air filter. If your air scoop is mounted ontop of the bonnet, just direct it so that water wont trickle onto the airfilter.
Got some info/tips from one of the mechanics working on our local Production Car championship.
If you want more air, just recoat your rotors in the charger to a closer tollerance. That would net u another 0.1 to 0.2 bar boost.
Also raise the charger from the engine with a Phenolic spacer. They are making power in the region of 365 flywheel kw 660 nm with restrictors in the inlet to keep the race fair. They havent popped any engines yet 
Gents, thanks for the inputs. Primetime, will try to do. Euroswager, aerodynamics are aerodynamics! If it looks like hell so be it. Everything is subjective.
I would deff agree. Get as many logs now as you can. after you install the changes they will help let you know if you need to tweek the inlet more.
My fabricator backed out but I’ve found a body shop that will give it a try next week. The problem is the support structures under the inside hood padding are presenting the potential problem.
What about a CF hood that you can easily dremmel and toy with (and not need to buy another hood and paint it should you go to sell)? I personally hate the look, but you would loose a decent amount of weight in the front and lower the CG:
Drob, that’s a wonderful idea except didn’t they do a face lift on the 2014s and therefore it wouldn’t fit? Application guide says B 8s, not B 8.5’s.
You might want to contact them to be sure. I know the fenders, front bumper and obviously headlights are different…but it could very well be that the hoods are the same between B8 and B8.5, maybe someone here can confirm?
Just talked to them, they are researching it but it doesn’t look good!
quit spinning your wheels
quit wasting your money
- wait for APR to take some time on this and get it sorted.
- wait for an APR DSG tune
These are literally the only things you need to consider.
It has literally been 3 weeks since it became clear there were underperformance issues and APR started investigating. In that period
- you have denounced APR publicly on multiple forums
- you have vocally committed yourself to switching to REVO (lol)
- you have vocally committed to hacking a hole in your hood to solve what is not even a problem on your car
- you are now looking into getting a new carbon fibre hood instead of the hack-a-hole technique
None of these 4 things are getting you anywhere. You think REVO is smarter than APR? Revo was started by a couple of mid level APR employees who stole APR corporate intelligence to start up REVO. They’re stringing you along like they’re stringing everyone along. They don’t know what to do, and they haven’t solved anything.
So you can wait for REVO, and pay twice…or you can wait for APR, for which you have already paid.
Doing something for the sake of doing something isn’t always the answer.
Saki, some of what you write is true, some of what you write is wrong and some is unproven. Yesterday Arin from APR, in essence, told me there is nothing wrong with my car. As I wrote, I was willing to drive down to AL and let them work on the car but since my tune is OK, they have several logs, I’d be wasting my time. Also, APR has known of my problem for a couple of months now. Everyone says wait until it’s cooler. At the rate it takes me to get things done it will be Christmas before I can achieve all my goals. I appreciate the advice, thanks.
I thought people are suppose to get wiser with age.
Your tune may be fine. Do you not understand or pay attention when people comment on the DSG tune part of the equation.
An APR DSG tune extending your RPM range will increse your trap an ET considerably. That is something that no one has yet.
How about just call up EPL/AMS and let them play with your car too, you must need a feeling of importance with all the hands your letting in your cookie jar.