mkiv98

iTrader: (5)

So I have removed the top piece of the IC duct to install a big cf airbox (cue adam C to tell me to put the stock intake back in) and it leaves the stock duct (going to my SR Motorsports SMIC) with a hole on top. What would be the best way to handle the openings that are left? Cover them? Leave it open? There is not much room on top or to the left, but the battery has been relocated so there's room to get creative on the right side.

Sgtblue

iTrader: (16)

Obviously don't leave them open. You want as much high-pressure at the face of the IC as possible. Working with it is a minor PITA, but FRP and filler would probably work to cover them with a gelcoat over the whole duct afterward.

Narfle

iTrader: (16)

Most people rivet some sheet metal over the intake hole. You could shave and glass the battery duct. I just used some duct tape for now. Really, you could duct tape the top, too.

While you're at it, extend the lip of the duct inlet down and inch or so, to send more air to the IC.

mkiv98

iTrader: (5)

I'm ok with duct tape for now...just want to make sure I'm not blocking anything important. How bout the hole on the right side that faces back toward the firewall?

adam c

iTrader: (2)

I dont want to say I told you so, but ..............

Some high density (and high temp) black foam would be easy to trim to size. You would have to figure out a way to secure it in place.

I just duct taped the hole that used to go to the battery box.

mkiv98

iTrader: (5)

couldn't pass up the "jdm bling yo!" either way, I'd eventually get a Vmount so it's no big deal.

what's the hole for anyway? why does it go to the battery box?

Narfle

iTrader: (16)

Battery life is decreased by heat. And, they omit harmful fumes when they overheat. And, the rx7 has a really hot engine bay. So, the ducting to the battery box probably swings at a couple problems.

mkiv98

iTrader: (5)

oh ok...then since mine is relocated i can just block that hole off

adam c

iTrader: (2)

Yes. Blocking that hole will increase airflow thru your intercooler.

Sgtblue

iTrader: (16)

I blocked the stock battery duct opening when I still had it. And like most aftermarket ducts, my current duct doesn't have that opening. Last two batteries have both lasted over 5 years. I get your point, but hesitant to give blind credit to MAZDA. After all, a coolant seal life is decreased from overheating. And a GOOD temp gauge lets you know if that's happening.

EUROX

iTrader: (15)

I just made myself a new duct using fiberglass. If you're creative enough, you can actually create something functional, custom, and aesthetically pleasing. I started with skinny pieces of foam board to form a crude mockup, then I fiberglassed over that. It took a week and a lot of fitting, refitting, and cutting, but I had a lot of fun doing it.