hearing turbos trough my FM radio

 
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Kame jzs147
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Joined: 06 Nov 2007
Posts: 105
Location: Montreal South Shore, Canada

PostPosted: Sat Dec 15, 2007 12:01 pm    Post subject: hearing turbos trough my FM radio Reply with quote

i use a car Ipod station that that send airwaves trough 88.1 when i cruise around i can hear my turbo's sound, or some type of whine, but it oddly enough its always timed with the turbos; under 1000 rpm i dont hear it.

i turn the radio OFF i dont hear it no more. at first i tought i was crazy but my friend told me about it the other day so im not making this up.

im not really looking to get rid of it, im just wondering if anyone has that, and also what might cause it.
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1991 Toyota Aristo - 2jz-gte
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xscape
'Ex Aristo Owner'


Joined: 14 Apr 2007
Posts: 1148
Location: melb, aus.

PostPosted: Sat Dec 15, 2007 12:18 pm    Post subject: Reply with quote

haha, my mums commodore does the same thing. i understand that its interference caused by the alternator?
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Ari
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Joined: 24 Apr 2007
Posts: 205
Location: Sydney NSW, Parramatta

PostPosted: Sat Dec 15, 2007 12:34 pm    Post subject: Reply with quote

In order to get rid of that interference you will need to get a filter for the "+" power of the stereo, you can get them from any jaycar or such shop.
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Aristo
'Ex Aristo Owner'


Joined: 11 Apr 2007
Posts: 2711
Location: Blackburn

PostPosted: Sat Dec 15, 2007 12:35 pm    Post subject: Reply with quote

Not your turbos!

Ground loop!! You have a dodgy earth somewhere. Easiest way is to run a new ground from where your stereo is grounded through to the battery. They also sell earthing kits in Japan that link up to 5-10 different places around the car.

If it continues, you can put a cap(acitor) on the positive feed to your stereo. Note it is more than likely in the amp (which is in the boot - and furthest away from the battery).
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skeez
'Ex Aristo Owner'


Joined: 21 Aug 2007
Posts: 2546
Location: Adelaide

PostPosted: Sat Dec 15, 2007 2:43 pm    Post subject: Reply with quote

Maybe.. the Aristos have phat earths back there so put a meter on it to be sure should be 0 ohm.
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manual
'6spd Wannabe'


Joined: 01 May 2007
Posts: 1399
Location: Kelmscott

PostPosted: Mon Dec 17, 2007 10:39 am    Post subject: Reply with quote

also happens when you run your power cables along side your speaker cables.
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Kame jzs147
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Joined: 06 Nov 2007
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Location: Montreal South Shore, Canada

PostPosted: Mon Dec 17, 2007 11:19 am    Post subject: Reply with quote

its winter out there so no chances of me doing any work on the car now, lol, look what my car looks like !!!!



and mind you, i shoveled and cleaned the car this morning for work, then i had to shovel around 1000pouns of snow to because i was stuck at work because it was stuck in 2 feets of snow. then uppon arrving home i had to shovel for another good 30 mins to get to park it in my driveway !!!!

lol thx for the info, i will probably work on it come summer.
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manual
'6spd Wannabe'


Joined: 01 May 2007
Posts: 1399
Location: Kelmscott

PostPosted: Mon Dec 17, 2007 11:53 am    Post subject: Reply with quote

so fkn glad it doesn't get like that in perth Very Happy
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Esteban
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Joined: 02 Jul 2007
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PostPosted: Mon Dec 24, 2007 10:45 am    Post subject: Reply with quote

How does the TRC go in the snow? Skidz?
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tomee
'Ex Aristo Owner'


Joined: 04 Dec 2007
Posts: 504
Location: melb

PostPosted: Tue Jan 15, 2008 10:31 pm    Post subject: Reply with quote

ive got some engine noise through my stereo now.
im using the wiring the previous owner had in the car, but i have now seperated the RCA and pwer cables to each side of the car, yet can still hear noise...

what ground points have people used for the amp in the boot and behind the headunit
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Aristo
'Ex Aristo Owner'


Joined: 11 Apr 2007
Posts: 2711
Location: Blackburn

PostPosted: Wed Jan 16, 2008 10:30 am    Post subject: Reply with quote

Just make sure all your grounds are good, nice clean contacts.

Failing that you can run a common earth, a wire from each earth point in your system to the other, it doesn't need to carry much load, its just evening it out.

Or a noise filter (just a cap) perhaps on the head unit feed & amp feed.
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tomee
'Ex Aristo Owner'


Joined: 04 Dec 2007
Posts: 504
Location: melb

PostPosted: Wed Jan 16, 2008 12:30 pm    Post subject: Reply with quote

had a look this morning, the ground behind the headunit was dodgy, took a test light to it

Smile
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Roadside Tech
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Joined: 25 Apr 2007
Posts: 283
Location: Cambridge - England

PostPosted: Fri Jan 18, 2008 5:13 am    Post subject: Reply with quote

Can also be a sign of the alternator about to give up the ghost if the earthing and suppressor kits don't work.
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thexad
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Joined: 15 Jul 2007
Posts: 27
Location: Red Deer, Canada

PostPosted: Sat Feb 02, 2008 5:31 pm    Post subject: Reply with quote

The TRC works great for me, i put winter tires on it and driven through 1' deep snow from a stand still i think the worst part was that i had to pull over and clean out my intercooler a few times. and it keeps you from drifting in the snow, when you don't want too Razz
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Chad's list of cars
1993 Toyota Aristo 3.0V (2JZ-GTE)
1996 Acura Integra RS (B18B) *sold*
1990 Nissan Fairlady Z32 (VG30DETT) *sold*
1988 Plymouth Sundance (k25) *died*
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thommo
'Ex Aristo Owner'


Joined: 16 Apr 2007
Posts: 2010
Location: Forrestfield, Perth

PostPosted: Sat Feb 02, 2008 6:49 pm    Post subject: Reply with quote

lol Mr Plow


would be great for intake temps!! 25psi stock turbos
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