ram air?

jusg19 · #1 05-16-2002, 01:49 PM

hey I think i got a good idea let me know what you think.

i've been thinking about cutting a hole in my hood and making a hood scoop like the WRX or the firebird out of fiberglass, then fabricating a air filter and some tubing to run the air right into the throttle body. I figure it has to be better than that stock piece of crap. I don't really want to get just a cai or something like that. i'm thinking something unique. I figure this way the air blowing into the hood will be cooler than anything coming from inside the engine compartment. also the speed of the air going into the engine will be faster the faster i go.

who knows, just my latest thoughts.

darolh · #2 05-16-2002, 03:09 PM

If you don't mind inhaling everything that your gonna get in the scoop it'll work. You'll have to clean/change the filter more often. Make sure it can't fill up with water because if you inhale a big slug of it, it can hurt your engine.

DarkImportGrey · #3 05-16-2002, 04:35 PM

Quote:

If you don't mind inhaling everything that your gonna get in the scoop it'll work. You'll have to clean/change the filter more often. Make sure it can't fill up with water because if you inhale a big slug of it, it can hurt your engine.

Hurting your engine is putting it lightly. If you get water in your cylinders, just pray that you can find a good deal on a new motor.

ci5ic · #4 05-16-2002, 04:55 PM

You could just go with a ram-air hood... I got one from Cervini's(www.cervinis.com). It doesn't actually route the air from the scoop to the intake mani. It's purpose is to bring cooler air into the engine bay, effectively reducing the temp of the air going into your intake... In this instance, it would still be a good idea to get an aftermarket intake. And it doesn't really matter if you get a bunch of water in the scoop, cuz it's not going directly to the air filter...

A cold-air intake is probably your most cost-effective way to go though. Unfortunately, my headlights prevent me from installing a CAI without some serious modifications to the tube and/or car, which is one reason I went with the hood.

BTW: The big scoops on a WRX in the center of the hood aren't intakes. That's where the intercooler goes.

Bleebdat · #5 05-16-2002, 05:23 PM

Jusg: That would be pretty sweet if you could just up and make a ram air hood, but it takes a lot of skill to use fiberglass or carbonfiber correctly. Good luck and make mine after you are done with yours.

crxlvr · #6 05-16-2002, 07:36 PM

ci5ic - why would you need to modify your headlights to fit a CAI on your car, my friend has a 91 hatch with a CAI and he only had to remove that stupid resonator box.

ive also got a ram-air type hood on my car, its the aerogear predator:
heres an old pic:

ci5ic · #7 05-16-2002, 07:41 PM

Cuz I have after-market projectors that protrude into the engine bay a few inches more than stock, effectively blocking the hole for where the resonator is.

crxlvr · #8 05-16-2002, 07:45 PM

Quote:

Originally posted by ci5ic
Cuz I have after-market projectors that protrude into the engine bay a few inches more than stock, effectively blocking the hole for where the resonator is.

oh, stupid projectors, cant you just move them out some, with the holding screws?

DMC12 · #9 05-16-2002, 07:51 PM

Quote:

Originally posted by jusg19
hey I think i got a good idea let me know what you think.

i've been thinking about cutting a hole in my hood and making a hood scoop like the WRX or the firebird out of fiberglass, then fabricating a air filter and some tubing to run the air right into the throttle body. I figure it has to be better than that stock piece of crap. I don't really want to get just a cai or something like that. i'm thinking something unique. I figure this way the air blowing into the hood will be cooler than anything coming from inside the engine compartment. also the speed of the air going into the engine will be faster the faster i go.

who knows, just my latest thoughts.

Your heart is in the right place... but the WRX scoop blows air onto the intercooler (not into the engine). Y'all are correct when you say it'll mess up his engine, not only water but increasing airflow without altering spark or timing will BURN YOUR VALVES OUT because you're changing your air/fuel ratio!!!

I agree that the best route is to blow the air ON a cold air intake.

Have fun!!!

ci5ic · #10 05-16-2002, 07:52 PM

This is another idea I just thought of... I haven't looked at my car to see if it would really work, but I was thinking about picking up a 90º elbow of PVC or aluminum piping (@ 2.5"-3" Diameter) and attaching one end through the hole for the resonator with the other end pointing towards the front of the car (through an opening in the bumper or something). This would bring cooler air directly to the cone-filter...

Any thoughts?

ci5ic · #11 05-16-2002, 10:32 PM

JusG, I just saw this link, thought it might interest you...
http://www.jdmfan.com/technical/perf...custom_intake/

You could probably make this work for a 4th gen...

Bleebdat · #12 05-16-2002, 11:33 PM

Mike: your heart is in the correct place too, but unless you seal the airbox/filter to your new tubing it will not get any ram air. It might lower the temp of the air you suck in, but wouldnt ram.

ci5ic · #13 05-16-2002, 11:38 PM

I'm aware of that.

Bleebdat · #14 05-17-2002, 09:31 AM

Well Good :jump:

jusg19 · #15 05-17-2002, 11:20 AM

thanks everyone for so much input. now i need to reevaluate what i'm gonna do. I think i'm still gonna make some type of hood scoop to get the air into the engine bay. I know i can make the scoop because i work with fiberglass all the time. I make my own surf boards, so if anyone wants surfboards too.....j/k

how much air is too much air into the intake? someone said that i'd have to change my timing to avoid blowing my valves.

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