MustGoFastR

iTrader: (13)

With all the talk of cold air intakes going on, has anybody tried a simple ram air scoop with an intake opening sucking cold air in the grill area and just connected to the hole in the front of the stock air box? Seems like it would be a cheap, simple bolt on. Plus, I saw Mine's has an front air box section with an oversized hole for more flow. Stillen's front bumper has that molded nostril in front of the air box; prob. for this purpose, but I don't like body kits. I wonder what kind of gains are to be had with a ram air set-up?

MustGoFastR

iTrader: (13)

No comments? Surely someone has thought of this...

tim_n/a

I did that on my Z32. It's easy since our filter is right at nose. But I don't see how do you connect a scoope to intake in a Z33.
But if you have done it right, a ram air should give you around 0.5psi at 70mph.
Try a eRAM, that's 1psi at any speed. I have both and they work well.

tim_n/a

If you just connect the scoope to intake and the whole path is not air tight(except the front opening of course), it's just cold air. your entire path has to be able to hold pressure to be a effectively ram-air. Again, it's easy in Z32.

ares

iTrader: (2)

also a intake is designed with materials in mind to insulate it, be light weight, and most of all, offer smooth air flow without obstruction. this would be near impossible to just go out to homedepot and do. youd probably get huge losses anywhere below 70mph from the long bent tube the air has to go through.

dougrace zs

iTrader: (2)

We thought the sys was raming air from the get go so we hooked a manometer to the front of the air box and got .03 psi at 100 mph while at wot. We've got to do some more test at part throttle and such just to see but the way the system is set up right now it is raming a little air.

tim_n/a

No way. With such a small opening at front, even at 70mph, I doubt it can keep up with engine's intake at full power.
I am not sure how big the openning is, say 1 inch times 10 inches. At 70mph, the air flow is 200cfm in still air, yet your engine take 300cfm at full power. You will still need some vacuum from engine to draw air in. Result in drop pressure (few inch H2O maybe)

Try 8x10", That's what I am using on my Z32.
If you are serious about ram-air. You need to cut a hole on your hood and mount a scoope. Not worth it.

tim_n/a

Oops, I mean 1 inch times 5 inches. Sorry. If you really got 10 inches, then you have 400cfm air flow at still air. Maybe you gain 0.5 inch H20 pressure