It's called the AEM bypass valve. Some people don't install it since they say it takes away power. It come in different sizes 2.25", 2.5", 2.75", 3.0", etc. I ordered one from ebay (2.75'') for my K & N. I'd rather pay $40-$50 and lose 1/2 HP (or whatever amount it is) instead of paying thousands to fix a hydro-locked engine.

 

so you are saying that it would fit the K&N CAI??

Also, do you think I should hold out for the AEM or Injen CAI, i have the time......its winter here in NYC and it can get bad, i prefer to install all my mods after the cold weather.......

 

Good info but I don't get why you would say 'us' guys are new to real world tuning. Did someone suggest over oiling their filter? Many aftermarket parts require additional maintenance and care. Letting your filter sit overnight after cleaning and oiling along with periodic cleaning of the MAF will prevent the sensor wire from getting coated w/ oil. But yes, over oiling is bad and can cause the a lean mixture esp. at wot.

 

I'm assuming it should fit since the valve is also kinda like a connector for the tubes and I got the right diameter so it should be ok. I'm in NYC also and the only mods I'm still doing are headers and sway bar. I have the TRD spring/shock set sitting in my room, but I'll wait to after winter to install that.

 

Even if you don't over-oil, oiled filters slowly degrade hot-wire MAFs. Just because K&N has been around since the 70's doesn't mean there aren't better/cheaper technologies for filtering air without the risk of poisoning your MAF. Don't get me wrong, I've run K&N on LOTS of engines with carburetors and MAP, but I wouldn't consider it a good solution for a MAF engine. There are a number of dry filters available by other manufacturers (HKS, Blitz, Apex'i, etc.) equally effective in power gains without the worry. Nothing's worse than a mod that slowly goes away over time and ends up with less performance than stock.

 

Well I don't know about degrading and poisoning. The TRD filters are also oiled and I really don't think that Toyota would approved a product that would poisin the MAF. Like I stated earlier, whatever oil/dust that doesn't get burned off the hot wire can be cleaned w/ an alcohol based cleaner. Having said that, I guess if anyone who has a K&N CAI and is worried about the filter can replace it with a dry one for $40 or so.

 

All ya have to do is occassionally clean the wires with an electronic cleaner. Comes in a spray can........... I use CRC QD Electronic Cleaner. There's probably alot of other brands....... just make sure it's quick drying and doesn't leave a residue.

I use it once a year..... usually in the spring.

 

Injen Intake will dominate All..

 

yeah, last night i was looking up the KN filter for my tc. came upon the CAI,. def getting it, if anyone has a group buy in store, im def in.

 

just got mine in yesterday. i havent had time to install it, but i got the silver one. heres some information, incase people are interested. part # is 69-8607. the intake system does come with the "drycharger" (sock protector for the filter as some call it). it is NOT carb exempt. it is part of their racing/off road division. the dyno by k&n shows a peak of 6hp to the wheels gain. you should ask around but technically speaking it will void your warranty. i've asked many dealers before, and the only intake system they warrany is AEM (which is the official provider for scion intakes) and that is only if they install it. but like i said, you should ask for yourself to find out what your local dealer will/can do for you. people should definately check into this if they are worried. if anything you can just re-install your old stock box when taking in your car for warranty. this is what i'll be doing. normally retail is $300 on this intake, so if there's a special i suggest picking one up.

now onto AEM, INJEN, WEAPON R.
aem: i spoke with them several times, and they've told me several things. 1st they are trying to create a special filter for the tc because of the special "emission friendly filter" in your stock box. basically they're trying to match that. 2nd they told me most likely it will be a dealer exclusive item. basically only dealers will carry aem because they have a contract. on the other hand, they also did mention that they "may" come out with their own version (2)... but thats a maybe.
injen: well i talked to them as well. last i heard, they havent started working on it yet, but they said sometime soon. the person told me that could mean anything from 1 month+ to who knows when.
weapon r: the thing you have to remember about this intake system is that it normally is a short ram intake. its more of a show mod. another thing too is that when they dyno intake systems they normally leave the hood up with the air (blower) pushing right on the filter. that is why the dyno comes back with some MAJOR gains. but rest assured it is not accurate.
lastly, for those of you who want to argue which cold air intake system is better..... i'm not going to argue, its up to you which one you like better. i've seen all 3 (aem prototype, injen prototype, and the k& n). they all are IDENTICAL in size and shape. the good thing of course is that k&n is already available. i think i'm done. i'll post up if i can think of anything else.

 

I ordered one about 3 days ago. Its on backorder and will be shipped out at the end of this week.

Back to the bypass part. Since the filter is a K&N and its oiled, doesnt that mean the oil will repel water??? Im sure its not as good as the bypass. The bypass only works when the filter is submerged.

 

well what type of water are you talking about? it breaks down like this.

1st. small amounts of water. i'm talking about rain, light sprinkles, etc. etc. the filter will not be affected by this. you will not suck up water in other words. plus the k&n comes with a "drycharger" that acts as a water repellant which lasts 2 years (according to them).

2nd. submerging/dunking your whole filter under water. very bad....... most likely you will hydrolock your motor. the only thing to prevent this would be to get a bypass valve from AEM.

the oil itself is there to trap small particles, dust, dirt, etc. and also to allow for better airflow. the oil will do nothing against water. hope that helps. but like i said if your talking about #1 you'll be fine with or without the drycharger that comes with the kit. just the filter by itself is fine.

 

I want to hear this intake already I wish someone with it installed would post a sound clip come on guys

Jay

 

about the weapon r... they may dyno with the hood open but those people who argue about heat soak, thats when you are a dead stop. you dont need power at a dead stop, when you are racing there are winds that cool the engine bay through the front grille. when weapon r dyno'd there wasnt a fan at the dyno shop. anyway, ive got the weapon r so i might be biased, but i love the increased throttle response, the quicker acceleration, and i LOVE the sound

cold air is great, but hey, the weapon r has some nice engineering put into it. and i wouldnt trade mine for cold air unless the cold air really made that much more hp then the weapon r.

i am going to dyno the weapon r intake on saturday then i will tell you all the results ill even do it with the hood closed if thats a factor for you guys

 

spider
I think that the oil would do more than just keep dust out. I know thats what its mainly used for. Im sure that the oil will do something against water. Think of it as motor oil on a sidewalk. When water is put on the oiled spot the water beads up.

As for the submerged filter, yes it could happen but smart people would avoid HUGE puddles if a CAI is installed on their cars. If it rains that much where you live take off the cold air extension and run warm air.

I'll just use the water jacket if anything, I just hope ours comes with it??? I would like to know what this intake sounds like also. I have a vid of a cone filter installed and its nice. I took off the air restrictor today but that didnt do anything. :?

 

i will be putin my k&n cai on today see how it goes

 

I have heard some people say that the AEM CAI is out for sale on some websites. Does anybody know where i can buy it?

 

I am leaseing my TC and I want to install the K&N CAI but i am afraid it will void my warrant. Will IT?

 

The tC intake is not available yet.

 

mahalzkita28- yeah.... i'm in no way putting down weapon r at all. i actually installed one on my girlfriends hyundai tiburon. it did improve the throttle response, and did sound mean. i was just saying that the dyno numbers are a bit inflated. you make a good point that driving at high speeds cools the engine bay. you can also say yes and no because the radiator is going to be the most affected by the cooling. the motor is so so. thats why its not fair to dyno a car with the hood open and the air blowing directly on the filter.

mx6tg91- yeah i know what your saying. thats why i gave you the 2 situations. if your worried about rain/snow/sprinkles of water, i said .... dont be. the filter will not suck up water that way. you dont even need the "drycharger". but yes it comes with every kit. i got one in mine. the only danger you face is actually submerging it under water. the oil will not do anything there.... even for a split second. trust me i know. its happened to 2 buddys.