i made the dual cone intake, and now i got a weird noise from the air pump when ever i let off the gas, and the rpms is droping around 3K rpm..its only there for a second..but its pretty loud...what should i do to stop this?

oh yah i cant disonnect the airpump yet, because i still have the main cat

 

well, people can you please help me?

 

That sound is your bov. Perfectly fine.

 

no..not that..i know what a bov is...i said it was coming from the air pump...some kind air noise

 

Thats the way the airpump sounds when unmuffled. The stock airbox has a silencer in it, and the aftermarket systems have some way of silencing it.

 

is there some way that i can silence it...something homemade?..or like a 1inch breater filter that i can put on it to silence it?

 

Yes... I know what you are refering too!!! "A Dying GOOSE" from the air-pump. I think the HKS intakes come with a noise filter of some type.

I know this noise from when I had a RE Amemiya intake on my car. In the instructions it said to diconnect the air-pump. Which then made the car idle really rich and destroy a couple Random tech. catalitics. But when you disconnect the air pump the noise is gone. The RE
intake sounded really cool and mean especialy when the blow off valve released but it sucked in too much hot air.

I now have been running with the N-tech. With the N-tech heat sheid it helps block out hot air. And it muffells
the sound of the dying Goose air-pump by running long air pipes to the front of the cars connected to a small K and N filter. I think Nick at N-tech got this design from the Pettit kit. I think his kit is better though.

Overall... If you are building your own intake... I think you should spend the $$$ and get either the M2 or at least the N-tech intake.

You can try calling Rick @ Rotary performance for some air noise filters. I have heard Mazda used them on some older rx's to silence the air-pump. But good luck in getting one.

 

hahahah "dying goose" thats like a perfect description of the noise lol, I have the pettit intake and it make that noise

 

Pumped:
hahahah "dying goose" thats like a perfect description of the noise lol, I have the pettit intake and it make that noise


Hi... I thought the Pettit kit come with silencers? And the same kind of piping to the front small K and N filter?
You should not be getting the Dying Goose sounds...
jc.

 

Me too. I thought some **** was broken when I first drove it with the Pettit intake on it, but it turns out that its just that.

 

disconect the air pump, and block off the lower hose (near manifold) refer to this thread.

 

https://www.rx7club.com/forum/showth...threadid=51266

 

i made my own intake and have had the air pump removed for a few years, until yesterday, i also had a goose on it's last leg. now its gone.

 

thanks alot for your help guys...but dont you have to remove the main cat in order to disconnect the airpump?

 

you dont HAVE to, but it will cook your cats