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#347475 Dec 9, 2:07pm
Joined: Aug 2004
Posts: 415
Senior Member
2000 Toyota Celica GT
Senior Member
2000 Toyota Celica GT
Joined: Aug 2004
Posts: 415
how come it only makes its 'roar' when the car is in gear and accelerating. when i just floor it in neutral it doesn't go rawr


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Joined: Jun 2004
Posts: 1,694
Metal Storm 2040
2000 Toyota Celica
Metal Storm 2040
2000 Toyota Celica
Joined: Jun 2004
Posts: 1,694
Because the throttle body's valve has to open to suck in air so the engine can work, so when you floor it, the valve opens and you hear the air coming into the intake. When idling the valve is only creeked open so you hear a faint sucking noise at idle. Plus air has to be HITTING and passing through the intake to make the noise, at a stop there is no air pushing into the intake as it was in motion.

Joined: May 2004
Posts: 2,971
Boobie Vision
2000 Toyota Celica
Boobie Vision
2000 Toyota Celica
Joined: May 2004
Posts: 2,971
^^^^ goodjob

Joined: Jun 2004
Posts: 1,694
Metal Storm 2040
2000 Toyota Celica
Metal Storm 2040
2000 Toyota Celica
Joined: Jun 2004
Posts: 1,694
Originally Posted by RookieGTS
^^^^ goodjob

Thank you rice wave

Joined: Oct 2004
Posts: 52
Member
2005 Toyota Celica GT
Member
2005 Toyota Celica GT
Joined: Oct 2004
Posts: 52
Originally Posted by BigTony
how come it only makes its 'roar' when the car is in gear and accelerating. when i just floor it in neutral it doesn't go rawr

i wondered that myself. good lookin out polykarb thumbsup

Joined: Jan 2004
Posts: 1,227
Likes: 1
Specialist
2002 Toyota Celica
Specialist
2002 Toyota Celica
Joined: Jan 2004
Posts: 1,227
Likes: 1
Originally Posted by Polykarb
Because the throttle body's valve has to open to suck in air so the engine can work, so when you floor it, the valve opens and you hear the air coming into the intake. When idling the valve is only creeked open so you hear a faint sucking noise at idle. Plus air has to be HITTING and passing through the intake to make the noise, at a stop there is no air pushing into the intake as it was in motion.
beat me to it tongue

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