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Conference terri::cars_uk

Title:Cars in the UK
Notice:Please read new conference charter 1.70
Moderator:COMICS::SHELLEYELD
Created:Sun Mar 06 1994
Last Modified:Fri Jun 06 1997
Last Successful Update:Fri Jun 06 1997
Number of topics:2584
Total number of notes:63384

1034.0. "Acoustic Control Induction System" by FOOT::WRIGHT (LDIR can make the earth move) Thu Apr 19 1990 12:56

    Does anyone know what 'acoustic control induction system' is ,with
    reagrds to fuel mixing. It is present on the Toyota Supra and new
    MR2.
    
    Tony
    
T.RTitleUserPersonal
Name
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1034.1SHAPES::ALFORDJIce a specialityThu Apr 19 1990 13:293
    
    something they can charge more money for when you buy one of those 
    cars ?
1034.2VOGON::ATWALDreams, they complicate my lifeThu Apr 19 1990 13:314
the louder you shout-the faster it goes


...art					;-)
1034.3Sounds impressive :-)DOOZER::JENKINSRoad trip!Thu Apr 19 1990 15:592
    
    
1034.4VULCAN::SMITHP1Another pn successfully paraphrasedThu Apr 19 1990 16:536
                     -< Acoustic Control Induction System >-

	Isn't this the process whereby road noise is eliminated by
	generating a similar sound with a cancelling wave-form !!??

	P1
1034.5NOFOOT::WRIGHTLDIR can make the earth moveThu Apr 19 1990 17:036
    re .4
    
    No. Its part of the fuel system. But thats all I know.
    
    Tony
    
1034.6Acoustic ResearchTPLAB::KENNEDY_CThe same old clich�Thu Apr 19 1990 17:115
    
    Somet to do with a wire in the inlet manifold, which resonates and
    tells the chip to change something.
    
    Read about it first on a Corvette.
1034.7...and there's more...VULCAN::SMITHP1Another pn successfully paraphrasedThu Apr 19 1990 17:143
	...the fuel is channelled through various intricate chambers to
	generate the required sound. Pressure changes between the
	chambers enables the amplitude to vary at different rev ranges...
1034.8It seems to help somehow...NZIRC5::EATONMarketing - the rubber meets the skyThu Apr 19 1990 22:465
Toyota sell a option to the system which is a speaker attached to the inlet
manifold. When the loud pedal is pressed, the speaker produces sounds of


                        Banzai !, Banzai !
1034.9100mph = deafening.HAMPS::PATTISON_M_mm_/���\_mm_, wot, no pussies ?Fri Apr 20 1990 13:294
    Is this anything to do with the ICE system whereby as you go faster
    the radio automagically gets louder ?
    
    
1034.10See .0 and .5FOOT::WRIGHTLDIR can make the earth moveFri Apr 20 1990 14:304
    Its part of the the fuel system (see  base note and .5)
    
    Tony
    
1034.11Vrrrrrrrrrrrrrrrrr-Born-rrrrrrrrrrrrrrrooo-in-ooooooo-the-oooooooommm-USA!-mmmmmmmmm!!!VOGON::BALLVote Early - Vote Often!Fri Apr 20 1990 15:5316
Re .9 about radio volume at speed

Can anyone explain this phenomena?  I used to experience it quite often before
my radio got nicked :-(.  When you're wellying along at high speed
down the motorway with the radio volume turned right up to cover the engine 
noise everything seems OK.  However, when you pull off at a service station and
slow down to idling speed, the radio immediately seems to be blaring out at a 
painfully high volume.  This seems strange to me because your ears have 
obviously adjusted to the high volume so why do they suddenly revert to normal?

I guess engine noise with music thrown in must be easier for your ears to cope
with than just the music - although the total volume is obviously lower.  Anyone
know why this is?

Jon

1034.12RUTILE::BISHOPFri Apr 20 1990 15:5811
    Jon,
    
    It's the embarressment of listening to Bruce Springsteen real loud
    and slowing right down and pulling up at traffic lights with 
    everbody staring at you.
    
    Well that Bruce for you ;-) 
    
    Lewis.
    
    PS. Sorry all you Springers out there ;-)
1034.13VOGON::BALLVote Early - Vote Often!Fri Apr 20 1990 16:337
Lewis,

I listen to *much* more embarressing stuff than Bruce most of the time!

Jon 

Now where did I put that Frankie Goes to Hollywood tape... :-)
1034.14RUTILE::BISHOPMon Apr 23 1990 10:247
    Jon,
    
    It takes a great man to admit to *that* ;-)
    
    Lewis.
    
    PS I'm not admitting to what i listen to !