flapper in the air box

wyatt89 · Post by **wyatt89** » Fri Aug 24, 2007 1:18 pm

what the hell is the little flapper valve that is in the air box for? i noticed that it opens when i rev the car to about 3k(?) is this just an egr or something that lets more air in?just wondering...

joholste · Post by **joholste** » Fri Aug 24, 2007 1:32 pm

can you post a picture of this i don't remember having a flutter valve of anysort in my airbox... the only valve i know of along that line is the throttle body

wyatt89 · Post by **wyatt89** » Fri Aug 24, 2007 3:41 pm

its inside the air box near the bottom closest to the back of the car, it is kind of flat and wide, i will try to get a picture of it...

goodvibe · Post by **goodvibe** » Fri Aug 24, 2007 8:28 pm

You've gat a GT and it opens to let more air into the motor at higher RPM s. Closed allows for better throttle response and a bit more torque down low and open for more HP up high. I don't think it opens until you're closer to 4k to keep things quiter for normal driving.

wyatt89 · Post by **wyatt89** » Sat Aug 25, 2007 3:08 am

thanks for the answer man, is that flapper recirculating exhaust gas or is it sucking from the open air?

goodvibe · Post by **goodvibe** » Sat Aug 25, 2007 3:32 am

djb383 · Post by **djb383** » Sat Aug 25, 2007 8:04 am

Gotta pic? I'm curious.

wyatt89 · Post by **wyatt89** » Sat Aug 25, 2007 1:50 pm

sadly, i am a semi-pro photographer who has had sports pictures published in the dallas morning news and i have a crapload of awards for it but i dont own a digital camera...ill try to borrow one from someone but i just went to college and i know no one so ill post a pic when i can get one.or...we could find another GT person here who still has the stock airbox to shoot a picture of it open and then closed...oh and i think you are right goodvibe because the engine gets a hell of a lot louder at 4k and then at 6500 so first its flapper than its lift...friggin bizarre engine

manicdan · Post by **manicdan** » Mon Aug 27, 2007 1:59 pm

even without my stock airbox i hear about 2x the engine noise going from 3200 to 3600rpms while driving on highway, thats to maintain speed not full throttle acceleration.

MRCN RCE · Post by **MRCN RCE** » Tue Aug 28, 2007 5:48 pm

Quote, originally posted by manicdan Â»even without my stock airbox i hear about 2x the engine noise going from 3200 to 3600rpms while driving on highway, thats to maintain speed not full throttle acceleration.i know. i've got a SR intake, isn't it great?? next time i go to my storage unit across town, i'll take a pic of my stock airbox, but don't hold your breath lol

flapper in the air box

flapper in the air box

Re: flapper in the air box (wyatt89)

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