DIY CAI

[red89st]

I was wondering if any body has any pics of the cold air intake in the diy section

[4thgenceli]

This pic was borrowed from Joel87gt(sorry, think i spelled it right). This way of the DIY CAI can be found HERE.

There is also a second DIY CAI BY JEREMY HERE.

Hope that helps.

[red89st]

i wanted pictures of the one by jeremy because i have to do a project for a welding class and chose to make a cold air intake. but i cant bring the car into the shop and dont know how it would be routed

[blck87gtconv]

It's better just to use silicone couplers anyway.. tha way it disassembles easier for when you need to work on your engine.

[Jim]

I've been thinking about doing this mod., but I haven't seen any pictures of the completed setup. I'm interested in the part number of the air filter. I'll assume that when the author says "according" that he means "accordion". If so, I would believe that using tubing like this would cause a lot of turbulence. Using some kind of smooth walled tubing would be much better. Anyway, if anyone has any pictures of the completed CAI minus the fender, I would be very interested in seeing them.

[Joel87GT]

Jim said:

I've been thinking about doing this mod., but I haven't seen any pictures of the completed setup. I'm interested in the part number of the air filter. I'll assume that when the author says "according" that he means "accordion". If so, I would believe that using tubing like this would cause a lot of turbulence. Using some kind of smooth walled tubing would be much better. Anyway, if anyone has any pictures of the completed CAI minus the fender, I would be very interested in seeing them.

Yes the accordion tubing. It will not impede air going at all. It will cause rolling air effect in direction of the air coming. There circular pockets of air stay in the deep channels of the tubing rolling the on rushing of air into the tubing ~ think of it you putting serveral marbles on a level table and you place something flat like your book. What will happen to the book if you push it. The book will roll on the table. The picture above shows the little air marlbes rolling the high stream air through and better yet channeling around the bends. Now compaired to a smooth tubing with bends ~ you get friction around the bends. The air pockets in the accordion affect tubing design comes from JET technology in the afterburner section.

[4thgenceli]

Hrm..
I think Joel likes jet engines.. seems every post has something related to jet engines

[Jim]

Has anyone tried this setup and if so what air cleaner did you use? I can, of course, measure for myself, but if someone has already done this, it could save me some time.

[blck87gtconv]

whcih setup? The curvey restrictive CAI?

[Jim]

So what's the best CAI?

[Joel87GT]

Jim said:

So what's the best CAI?

Coming from the wheel well on the drivers side.

[blck87gtconv]

Jim said:

So what's the best CAI?

The best CAI isn't a CAI at all.

Read my post here to read about the best setup and what makes it the best.

[Jim]

Thanks for the reply. I do need to correct point number 1 you are trying to make. I can think of a few items you can "bolt on" to add HP, a turbo, a blower, NOS. None of these free up any existing HP, they help produce more. Bolt-on's like a header or a bigger throttle body to exactly what you are saying, just frees up HP.
I do agree with point 2, ram air is a miss used term that Pontiac made popular in the mid 60's.

While you make a good point in your post, you offer no practical solution that will fit our Celica's. The red car with the hood looks nice but the scoop appears to be right above the exhaust, I'm not thinking its functional and if it is, it would have a lot on bends in the duct work, plus I've never seen an under hood picture. I think most people go with the air cleaner in the fender because it is the most practical (but maybe not the best) way to get cooler air into our motors. I plan to make this "CAI" and take the car to the track to do some back-to-back testing of the stock air box versus the "CAI" that seems to be so popular here. (Although I read a lot of people talking about it but no one can supply a simple part number or dimensions of the air filter they used.)

[blck87gtconv]

Jim said:

Thanks for the reply. I do need to correct point number 1 you are trying to make. I can think of a few items you can "bolt on" to add HP, a turbo, a blower, NOS. None of these free up any existing HP, they help produce more. Bolt-on's like a header or a bigger throttle body to exactly what you are saying, just frees up HP.
I do agree with point 2, ram air is a miss used term that Pontiac made popular in the mid 60's.

While you make a good point in your post, you offer no practical solution that will fit our Celica's. The red car with the hood looks nice but the scoop appears to be right above the exhaust, I'm not thinking its functional and if it is, it would have a lot on bends in the duct work, plus I've never seen an under hood picture. I think most people go with the air cleaner in the fender because it is the most practical (but maybe not the best) way to get cooler air into our motors. I plan to make this "CAI" and take the car to the track to do some back-to-back testing of the stock air box versus the "CAI" that seems to be so popular here. (Although I read a lot of people talking about it but no one can supply a simple part number or dimensions of the air filter they used.)

Okay.. I think you're mixing up posts with members. I never said anything about using the hoodscoop. I said build a cold air box around a short ram and duct cold air to THAT, if you wish.. but don't force the air to take the bends that way by actually making a CAI go that route.

It's been proven that a short ram and cold air box is the best setup. You don't have to believe me, but it's the honest truth. It's more work than the other method, granted. But if you want the absolute most from your setup, that's the way to do it.

When I say to "duct cold air" to the box, I mean run some dryer hose or something to the hole in the engine bay from the front of the car.. not quite a ram-air, since it's not all sealed off.. and since the pressure cannot ever be positive, but with the setup I mentioned.. it's not pulling air exclusively from this spot.. and this outside air will just be added insurance.

[Jim]

I'm sure I am getting the posts confused. Anyway, way ideas on making a "short ram"? As I see it, the only way to short the intake is to remove the air filter box, but then you would still need a way to mount an air filter and a box around the air filter with a duct leading to the box, which is like the factory set-up. I'm thinking maybe just keeping the stock sir box but running a larger duct into the box and using a K&N replacement filter for more air flow. Any better ideas?