FYI, I built a ram air scoop on the LH side of the rad, sealed up the gaps around the head light molding, removed the baffle seal in front of the plastic inlet duct along the grill frame (plus cut out some plastic), and used rubber baffleing to create an air box when the hood is closed. The result is positive air pressure at the air duct inlet. I used a manometer to test drive this mod, and went from about 1" of water pressure to 2" + at 50 mph. I haven't had the chance to try it out at highway speed for a long haul, but just driving around town I've noticed more power, quicker up shifts, and town driving in higher gear (automatic) with lower RPMs, so I hope the milage kicks up a notch as well. If any one is interested I have pictures I can e-mail, or let me know how to post them.(Click Here to find out why email addresses are removed from posts.)

 

Sounds great ! Can't wait till I get my ram air completed . Soon I will have the time to play with it .

 

I've considered this, but what about the possibility of sucking up rainwater?

 

The rain is no worst than what normally get sucked up off the road. My inlet deflector behind the grill gets hit by the water which runs down to the bottom with a drain hole, the airmass has to change direction to go up under the hood, change direction again to go into the plastic duct, so this doesnt seem to be a problem. PS I live on the west coast of B.C. Canada, so I drive in lots of rain.

 

PS I figured out that pictures go in the Gallery, so I've posted a couple there for anyone interested.

 

When you want to get serious make a real scoop.

Rain water is a lot like water injection, lower EGT's and more power.
Snow does create problems though, it cakes the filter in a sheet of ice.

 

Are u running a turbo?? I Need to make me one of those. Did you use a heat vent like the ones in the floors in houses??

 

Daves scoop is definitely more positve, but with my 93 the rad support frame is in this position, and airconditioning hoses behind make routing a 4" duct tricky, (but not impossible). I figure my mod is a good compromise without altering anything of structural significance. Plus I opened up the plastic grill opening by about 1" without it affecting the grills appearance too radically.

 

The scoop is all custom made, I used to do duct fabrication.
No off the shelf duct products fit where it needs to go.
Also I had to work aroud the AC lines and through the radiator support without cutting anything of major structural importance.
Trim the flanges on the radiator, remove the radiator support and fabricate a new one that mounts on the top of the radiator shell.
I also had to clear the power steering pump on the inside with the duct work.
And yes this force feeds my turbo with about 3 PSI pressure at 70 MPH or 2600 RPM.

Got rid of all the smashed down plastic duct work and the obstructions in front of the original intake.
Also went from a vacuum to positive pressure between the air filter and turbo.
Dropped the EGT's about 300 degrees.

 

That is a sweet job Dave .

 

That sounds great. It's been a while since you did it - have you had any problems with large puddles or rain or snow?

 

Never had any problems with this install, basically the stock intake system made bigger is all it is! No snow problems as I'm in the coast snow it wet and heavy and doesn't blow around at all.