93 R1

I just put on an Apexi intake. The one with aluminum pipes. I hooked everything up and its making this loud *** vibrating noise when you rev it. The noise is coming from the rubber hose that goes around the pass side of the intake manifold and up underneath it. It is right above the airpump hose that goes to the rear of the motor. On the stock airbox I think it was the one on top all the way to the drivers side. At idle it has slight air blowing out...rev it and it whooshes air and makes the noise.

What the **** is this hose connected to that would make that kind of noise?

Help me.

Bucrx7

Does it sound like a cow mooing? If it is then it's normal because you don't have an airbox that muffles the noise from the airpump anymore.

Import Convert

I believe the restrictor that comes with the intake is supposed to stop it from making that noise.

mjw

iTrader: (1)

Did you insert that metal piece w/ the hole in it into that hose? I think it goes in that hose..

Matt
93 SSM

Import Convert

^ thats the one Im talking about. Maybe it's in the wrong hose?

93 R1

Yeah it sounds like a ******* cow. I didn't get the restrictor thing.

According to the service manual its the air relief valve. WTF is a air relief valve?

What can I do to get rid of the noise?

thatoneguy

restricting the air relief valve will slowly kill your airpump

Import Convert

call whoever you ordered your intake from and ask for the round aluminum piece with a hole drilled through it. That noise would **** me off for sure.

Rx-7$4$me

hmm... I got it and put it in the right hose but mine still sounds like that...... maybe its vibrating against my hood since its a lil high. but it sounds like a cow.....

spoolin

damnit, you better find out out what the **** it is cause i plan on buying mine next week! i don't want a dairy farm under my hood.

93TTRX7

LMAO it's a cow farm

93 R1

I shoved a piece of rag in the hose and it quiets the noise alot. You still get a slight noise from the airpump though.

I'm going to try a breather from an older v8 or something

Bucrx7

Trust me the mooing sound is caused by the airpump. The sound is ALWAYS there but you never heard it because the airbox was muffling it.

ttpowerd

I installed everything that came with the apexi intake and I have yet to encounter that problem at all. It is lounder but my turbos cover that noise up quite well

93 R1

I am using the apexi intake that comes with the fmic.

I don't know if this makes a difference.

trigeek37

ack! I just ordered an Apexi intake on Monday and I will be installing it in the next few days. Did I make a mistake getting the Apexi? or would any aftermarket intake have this issue?

Import Convert

No, you will like the Apexi intake!

Bucrx7

The majority of open intakes will make that sound if you still have your airpump. Guys who has remove the airpump notice that the sound disappears. The Apexi intake is a great and one of the most free flowing intake for the rx7.

ttpowerd

spoolin

do you recommend using this intake with the stock hoses or can you use upgraded intake pipes like the polished m2's. does anybody make these other than them? what will one have to do to remove the airpump? are the metal pipes sticking off of the filters where the crv and bov tubing connects as if were going back into the stock airbox?

spoolin

i huess this intake won't work w/ m2 med smic?