Coolmicski

looks good, what will the increase in performace and avg cost be ?

Manntis

geez, I posted 2 replies to this and neither showed up...

Coolmicski

Have you seen or heard of any type of ram air design?

JEC-31

This isn't really a "ram-air" design because General Motors/Pontiac patented that term, which usually refers to large hood scoops, which people have done for 1st gens before, and have their place.

This is a "Cold Air Intake", meaning the primary purpose is to not have the very hot air in the engine compartment being sucked into the motor. Cool air is denser, meaning more oxygen to burn with the fuel.

A hood scoop really is the ultimate CAI, but for our budgets and styling sensibilities we don't do to as radical a mod as cutting a huge hole in the hood and pasting in a scoop. If you're going to do that, why not just get a weight-saving wallet-killing carbon-fiber hood (from other forum members...) and leave the nice clean stock hood for the restoration projects?

To my knowledge nobody has offered an inexpensive & effective mass-produced CAI for 12a (Nikki carburetors, of course) 1st gens.
Notice we plan to make it work with the fuel-injected 13B in the GSL-SE also.

Rx7carl

Why not have the CAI also be ram air? Thats the setup on my car.

JEC-31

Because Ram Air is a "marketing term" from GM in the sixties, with the GTOs and Firebirds. Don't hold your breath for Rotorhead.ca Wide Track suspensions and Screaming Chicken hood stickers...

Where's your setup ramming in the air from, Carl? Post pics if ya got 'em too! All I have to work with is 3 non-running cars, 2 under snow. And my FC is about dead.

Coolmicski

ram air with an electric high cfm fan

Pele

iTrader: (28)

Then your gain will be negated by spinning up the alternator to run the fan.

JEC-31

True, true.

In that year-old "Supercharger" post that was recently resurected, some people joked about using leaf blowers for forced induction. I dare you to try it!

rollin82

i once played wiht the idea of a cold air intake for my nikki carb..but it seemed like to much effort haha... how you guys plannin on dooin it.. i once dre a pic on my comp to show my pops... but i dunno

abeomid

or u can use something similar to my setup before I took the engine out.

Rx7carl

From the front is where its ramming.
Look at Omids and picture this. Take off the K&N, then add a 90* elbow pointing forward, and thats what I have. I have pics but dont know how to post them.

Manntis

As soon as you have 90 degree bends it's no longer "ramming" - GM's "ram air" goes through the hood scoop, then filter, then straight into the intake nestled between the cylinder banks - and is mostly a marketing gimmick, as air is pushed into the engine by atmospheric pressure ("sucked in") or impelled in by turbos

Rx7carl

Well I make no performance claims for my system. And anyone who makes any claims for one, or a CAI, better post proof or its bullshit, plain and simple.

The only thing I can prove about my setup is that intake charge temps are dramatically lower.

Directfreak

iTrader: (2)

Manntis.

Make this. We know ANYTHING is better than stock. I know you're not designing "RAM-AIR" but a Cold Air Intake.

All this means is that you are seperating the air that goes into the intake, from the hot air in the engine compartment. HP gains? Probably. Proveable? Unlikely unless you are in motion.

Cool? You Bet.

I want one.

Manntis

I didn't make performance claims either.

Cold air is more dense than hot air, thus gives you more oxygen per volume.

As to whether the system I'm working out is bullshit, if it provides colder air, or allows a larger cone filter, or people like the way it looks in their engine compartment and decide to purchase one rather than design their own from the ground up, that's where I come in.

Rx7carl

Manntis, sorry you mistook what I was saying LOL. I wasnt attacking you man, relax. Heres a potential problem relating to your previous statement. Since the carb no longer has a temperature stable atmosphere to draw air from, ( now its dependent on the outside air temp which can vary greatly i.e 0*-100*+) Your carb jetting can be thrown off. With EFI its not so much of a problem since the computer can make the necessary adjustments. But with a carb, you might have to re-jet 3-4 time a year LOL.

abeomid

see with my setup, there is no air actually forced into the filter as it sits on very top and it's not in direct contact with the moving air from the front. The only thing it does is feed the filter cold and fresh air.

Manntis

Actually, Abeomid, since I saw your system I'm wondering if the airbox is the way to go, or a rad mount wall with integrated filter mount/ducting.

The advantage of the airbox is ease of access to the filter, which can be handy in emergencies. The advantage of a system derived from your design is simplicity and space-saving, especially if it's universal to 12A and 13B models.

Rx7carl

I think you could use Omid's design as a starting point too. Maybe you could just make a new rad side support as part of the kit? That would make it a true bolt on and go.

abeomid

well my setup with the new engine will be different. I think I will have the air-filter close to the windshield area as it is a high pressure area on the car.

Manntis

it's also a hotter area of the engine compartment, and sucks in leaves and rain

abeomid

not really if you do a good job of making a box for it.

Manntis

I was referring to that part of the engine comp't It'll be a hot, rain magnet no matter what

abeomid

It won't be hot if your hood has a vent. Also the rain and leaves won't be going in. It's not exactly right beside the windshield. I will post some pictures today of what it might look like