N/A Intake

scruffboy · 06-04-2007, 12:21 PM

I was thinking of getting a K&N filter with that nice straight pipe to the throttle body, always thought it looked nice and clean. Then I read this in a Supra History Story:

ACIS (Acoustic Controlled Induction System), a method of controlling air compression pulses inside the intake piping to increase power, was also apart of the 7M-GE's technological arsenal.

So it seems that the Engineers didn't just throw that big barrel shaped piece into the intake pipe for no reason. If anybody out there who knows what they are talking about would like to maybe explain this, or give it a thumbs up (keep it), or a thumbs down (chop it and get the K&N) please feel free to chime in with your expertise.

Scruff

mrnickleye · 06-04-2007, 02:31 PM

there is info on this subject. search the threads for ACIS.

ACIS is the 'butterfly' valve in the center of the 'aluminum' intake manifold. its vacuum operated.

you can safely remove the intake 'sound deadning resonator' (the big round plastic thing) from the intake, without any power loss.

Be sure to cover the new metal pipe intake with insulating wrap, so it won't absorb heat and cause 'power loss'. It is right over the exhaust manifold, after all.

scruffboy · 06-04-2007, 04:17 PM

Well, now I know where the butterfly valve is and what it does. Always something new to learn. At least I got a good laugh from the fella who kept asking where it was on the 7MGTE and the other guy told him like 3 times THERE IS NONE. Funny man, real funny. Thanks again for coming through for me Mr.Nickleye.

Scruff

j3pz · 06-05-2007, 12:00 AM

yes all that big barrel shaped thing is is a resonator, keeps sounds from coming out of the engine.

while on the subject, will that also play a role in the acis? i read acis had to do with sound coming from the valves and the timing of the acis to create a supercharger affect, am i correct so far? so if the resonator is to keep sounds from coming out of the engine via the intake, would that interupt the process of the acis? i may be way out in left field but just curious. sorry
/rabbit trail

mrnickleye · 06-05-2007, 02:08 AM

Yes....way out in left field. Resonator intake is to dampen the sound of the air rushing in when accelerating.

ACIS, as you read in the thread I mentioned in the search function, is for increased torque at low rpm, and then increased air flow at high rpm.

j3pz · 06-05-2007, 03:48 AM

hmmm looks like i have some reading to do... maybe ill try to steal second...

06-04-2007, 12:21 PM	#1
scruffboy walbro fp Join Date: Sep 2005 Location: Kearny, New Jersey, USA Posts: 427	N/A Intake I was thinking of getting a K&N filter with that nice straight pipe to the throttle body, always thought it looked nice and clean. Then I read this in a Supra History Story: ACIS (Acoustic Controlled Induction System), a method of controlling air compression pulses inside the intake piping to increase power, was also apart of the 7M-GE's technological arsenal. So it seems that the Engineers didn't just throw that big barrel shaped piece into the intake pipe for no reason. If anybody out there who knows what they are talking about would like to maybe explain this, or give it a thumbs up (keep it), or a thumbs down (chop it and get the K&N) please feel free to chime in with your expertise. Scruff __________________ The only way they'll get my Supra is to pry my cold, dead fingers from the steering wheel. 89 N/A Supra, 5 speed, TEMS, Moon Roof, all stock, Black with beautiful Burgundy interior, lots of new parts, oil changed every 3 months like clockwork.

06-04-2007, 02:31 PM	#2
mrnickleye 1000whp postwhore Join Date: Jun 2005 Location: Mojave Desert, Calif. Posts: 1,705	there is info on this subject. search the threads for ACIS. ACIS is the 'butterfly' valve in the center of the 'aluminum' intake manifold. its vacuum operated. you can safely remove the intake 'sound deadning resonator' (the big round plastic thing) from the intake, without any power loss. Be sure to cover the new metal pipe intake with insulating wrap, so it won't absorb heat and cause 'power loss'. It is right over the exhaust manifold, after all. __________________ Had a Red 1989 N/A. Automatic. Sports Pkg. w/wing. TEMS, and some nice MODS. Sold to a friend 10/08/08. Last edited by mrnickleye; 06-04-2007 at 03:06 PM.

06-04-2007, 04:17 PM	#3
scruffboy walbro fp Join Date: Sep 2005 Location: Kearny, New Jersey, USA Posts: 427	Thanks, guy Well, now I know where the butterfly valve is and what it does. Always something new to learn. At least I got a good laugh from the fella who kept asking where it was on the 7MGTE and the other guy told him like 3 times THERE IS NONE. Funny man, real funny. Thanks again for coming through for me Mr.Nickleye. Scruff __________________ The only way they'll get my Supra is to pry my cold, dead fingers from the steering wheel. 89 N/A Supra, 5 speed, TEMS, Moon Roof, all stock, Black with beautiful Burgundy interior, lots of new parts, oil changed every 3 months like clockwork.

06-05-2007, 12:00 AM	#4
j3pz 500whp yet? Join Date: Nov 2005 Location: Mechanicsville, MD, US of A, 20659 Posts: 1,060	yes all that big barrel shaped thing is is a resonator, keeps sounds from coming out of the engine. while on the subject, will that also play a role in the acis? i read acis had to do with sound coming from the valves and the timing of the acis to create a supercharger affect, am i correct so far? so if the resonator is to keep sounds from coming out of the engine via the intake, would that interupt the process of the acis? i may be way out in left field but just curious. sorry /rabbit trail __________________ 88 N/A w/ 5spd - stock - not running, bhg 87 turbo/targa w/ 5spd- fidanza light weight flywheel, new oem slave cylinder, apexi air filter, no ac and no heat

06-05-2007, 02:08 AM	#5
mrnickleye 1000whp postwhore Join Date: Jun 2005 Location: Mojave Desert, Calif. Posts: 1,705	Yes....way out in left field. Resonator intake is to dampen the sound of the air rushing in when accelerating. ACIS, as you read in the thread I mentioned in the search function, is for increased torque at low rpm, and then increased air flow at high rpm. __________________ Had a Red 1989 N/A. Automatic. Sports Pkg. w/wing. TEMS, and some nice MODS. Sold to a friend 10/08/08.

06-05-2007, 03:48 AM	#6
j3pz 500whp yet? Join Date: Nov 2005 Location: Mechanicsville, MD, US of A, 20659 Posts: 1,060	hmmm looks like i have some reading to do... maybe ill try to steal second... __________________ 88 N/A w/ 5spd - stock - not running, bhg 87 turbo/targa w/ 5spd- fidanza light weight flywheel, new oem slave cylinder, apexi air filter, no ac and no heat

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Intake Question	EvilDragun	MKIII Supra	18	04-15-2008 04:05 AM
Cleaning Intake & Injectors	mrnickleye	Supra FAQ	6	03-23-2007 04:26 AM
5mge intake manifold upgrade	Allen Crump	Non-Generation Specific Questions	1	11-02-2006 01:53 AM
intake manifold has coolant what did i do wrong?	91toy supra	MKIII Supra	6	09-16-2006 02:46 PM
custom intake manifold	j3pz	MKIII Supra	8	12-07-2005 06:23 PM