Cold Air mod

[Steve in VC]

I tried using a small 90 degree elbow, which place the air cleaner in front of the windshield, but couldn't fabricate a box open to the base of the windshield to save my life. Without the box, I would get heat soak in slow traffic.

Last weekend I reconnected the flex pipe, put the MAF down by the generator. I then cut a section out of the plastic bottom tray and put the air cleaner behind the fog light. The fender liner already has a hole that fits the flex pipe.

Finally got to drive it this morning. The supercharger whine is much quieter, and a stumble around 3 pounds of boost seems to be gone.

Now I just have to stay out of deep puddles.

[GO MAN GO]

I did the same thing last year. Where is your intake air temp sensor
located? Mine is still zip tied up in the passenger corner of the engine
bay. Can't say I noticed any real difference but it has to be better than
right behind the radiator. I also removed the passenger side fog light
for full air flow.

[FormerDatsun510Man]

It works well, at least on the '99+ models (I'll have to take a closer look at the '94-'97 when I get a chance), to put the air filter over behind the driver's side headlight. I use an L bracket to bolt to the MAF and an open bolt hole over there. Mazda put a "cold air" inlet on the front side of the driver's side wheel well and there is a hole right above that which directs the ambient air straight up and behind the driver's side headlight. I have datalogged there and even without a cold airbox you will see less than 10 deg over ambient when in motion there. When stopped it will start to rise in temp and can get up to 20-30 deg F over ambient until you start moving again. With the cold airbox in that location, like Ari's design, the air temps stay within 5 deg over ambient all the time.

Just thought I would mention an alternative to you in case you do have any issues with water puddles and such. Admittedly, that was one thing that concerned me a little bit with the original Coldside design of the intake and I am glad that we now have the air filter back basically where the factory originally designed it to be.

Bill

[99mx5]

The new cold air boxes are ready to sell. I'll post the info up soon.

[Steve in VC]

It works well, at least on the '99+ models (I'll have to take a closer look at the '94-'97 when I get a chance), to put the air filter over behind the driver's side headlight. I use an L bracket to bolt to the MAF and an open bolt hole over there. Mazda put a "cold air" inlet on the front side of the driver's side wheel well and there is a hole right above that which directs the ambient air straight up and behind the driver's side headlight. I have datalogged there and even without a cold airbox you will see less than 10 deg over ambient when in motion there. When stopped it will start to rise in temp and can get up to 20-30 deg F over ambient until you start moving again. With the cold airbox in that location, like Ari's design, the air temps stay within 5 deg over ambient all the time.

Just thought I would mention an alternative to you in case you do have any issues with water puddles and such. Admittedly, that was one thing that concerned me a little bit with the original Coldside design of the intake and I am glad that we now have the air filter back basically where the factory originally designed it to be.

BillI'm in California, so I want it to look like the instructions in case the tester checks. Where I had it before kept cool while I was moving, but in slow traffic, it got pretty hot.

Where it is, the air temp is nice and stable (and my Scan Gauge now gives me outside temp [sort of]).

Go Man Go,

I extended the air temp sensor wires and put it in the top of the air cleaner. I am running after market driving lights in place of the fog lamps, and they have a 1/2" gap around the edge, the fender liner has a lot of holes, and the piece I cut out of the plastic tray opened a 3" X 2" hole to the grill opening.

Now to see if it gets too wet.

Steve

[FormerDatsun510Man]

Ah, I see Steve. That pesky CARB. I might need to talk to Tom about perhaps CARB approval for little items so that we could interchange them without issue out there in Kalifornia. No promises yet, but I will give it a shot.

Bill