Jump to content

IGNORED

Anybody using the dual ITG Air Cleaners?


jmark

Recommended Posts

OK, this is just second hand information but, I've read that the ITG foam filters are not recommended for regular use on street machines as they do not filter as fine a particulate as do paper or gause filters. They are designed for race conditions where maximum airflow is the major concern. Besides, racers tend to service their race cars between races so they may have less than 200 miles on a service. Check out the K&N system (separate filter for each SU).

Link to comment
Share on other sites

I ran the ITG for Mikunis on mine for ~40K miles. Eventually it did lose the crank pulley and I had to build a new shortblock because of that. There was no readily apparent engine damage from dirt (like a real bad ring ridge or something of that nature). The big advantage to the ITG's over the K&N's is that the air can go straight down the throat of the carb without having to go around the chrome plate at the end of the filter. I think you're seriously splittling hairs with SU's, though. When I ran SU's I cut the air horn out of the stock air cleaner housing and mounted them inside the K&N's. Worked fine for me.

Link to comment
Share on other sites

There are several pictures scattered through the gallery, Search for 'su' and scroll through. Here are a few I found straight off:

http://www.classiczcars.com/photopost/showphoto.php?photo=17485

http://www.classiczcars.com/photopost/showphoto.php?photo=16850

http://www.classiczcars.com/photopost/showphoto.php?photo=16848

http://www.classiczcars.com/photopost/showphoto.php?photo=16725

But remember that any of the hoses that connect to the factory air cleaner base plate now will have to have some sort of alternative figured out. The biggest headache is the breather from the valve cover. Many people use a small K&N on the breather, but that can lead to oil mist settling all over the engine compartment. A better alternative is to modify the base of one of the new air cleaners to accept a breather connection.

Link to comment
Share on other sites

I would think you would decrease preformance with that setup. You're allowing two big open filters to suck super hot air in from the engine bay (especially with the header right below it).

At least the stock air box pulls the air from the front of the engine bay (a little cooler anyway)

Link to comment
Share on other sites

So Mark, what is wrong with the modified stock air cleaner you are now using? Changing to ITG or K&N's isn't going to make much difference over what you have now?

If it were me, I'd probably want to rework the A/C so that I could use the stock air box. Every other A/C I've seen on Z's mounted the compressor on the opposite side of the engine.

Link to comment
Share on other sites

I would think you would decrease preformance with that setup. You're allowing two big open filters to suck super hot air in from the engine bay (especially with the header right below it).

At least the stock air box pulls the air from the front of the engine bay (a little cooler anyway)

it's definitely not ideal, but it works for me. i haven't felt any noticible power loss, but i can't honestly say i've felt any gains. it SEEMS like it makes more power, but that's only seat-of-the-pants..

since i'm going to be putting my vented hood on, the vent is right above the filters, so i'm hoping that it will bring in more cold air.

Link to comment
Share on other sites

So Mark, what is wrong with the modified stock air cleaner you are now using? Changing to ITG or K&N's isn't going to make much difference over what you have now?

If it were me, I'd probably want to rework the A/C so that I could use the stock air box. Every other A/C I've seen on Z's mounted the compressor on the opposite side of the engine.

Probably nothing. Just doesn't look that great. I can't see reworking a functioning AC system just for the air cleaner interference. I think air horns with the ITG cleaners would look much nicer. Are these the correct air horns?

http://www.twminduction.com/AirHorn/AirHorn-FR.html

Link to comment
Share on other sites

those look like them.

However, if you're going to essentially 'toss' your current stock type air cleaner, your best bet is to just cut out the air horns in the stock air filter housing and use those....they can't be seen, and the stock ones are the best designed ones anyways.

Link to comment
Share on other sites

  • 1 month later...
i dig the k&ns as well.... here's my set up (in my dirty engine bay; now they're in the clean one)

Hi Jason,

I am thinking of going this route soon. Do you have a part number for the K&N's you bought? Where did you get your air horns from? Do you have a part number for those and the cost?

TIA,

Marty

Link to comment
Share on other sites

I would think you would decrease preformance with that setup. You're allowing two big open filters to suck super hot air in from the engine bay (especially with the header right below it).

Probably not. I put a few temp sensors in the engine compartment of my 240Z and once you get the car moving about 25 mph there's at most a 7 degree difference between the underhood temps and abient. At idle you will see significant increases in underhood temps but once the car gets moving the Zs engine compartment cools down quickly. Also did similar testing on my 2000 Ford Contour SVT and a racing BMW 325is. All showed very similar results to my 240Z test.

Link to comment
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
×
×
  • Create New...

Important Information

By using this site, you agree to our Privacy Policy and Guidelines. We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.