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Senior Member
Join Date: Nov 2000
Location: Great NorthWest
Posts: 3,941
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Relay required in our 911s for Hella Supertone horns?
Just installed a pair using the Perrin bracket on my son's WRZ Impreza (fast little sled!). In doing so, we denied the last bit of juice/Db by using the existing trigger wire and not a relay with direct battery juice to the horns (there is no concern of current draw melting the loom - we checked). Sounds very, very loud.
To increase space in my wheel well for additional cooling I had thought about installing these in place of my stock trumpet horns. Not finding any info. in our library here for the need/no need of a relay so wondering if anyone has done this on their 911. Thanks!
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'78 Targa in Minerva Blue |
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non-whiner
Join Date: Aug 2012
Location: Slightly right of center
Posts: 5,235
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I know a Carrera has a horn relay standard and I believe the SC does also. Check relay 4.
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"Too much is just enough." |
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Registered User
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I've had them direct wired into the old horn connection for 4 years, no problems - and no additional relay or other wiring. They have saved me a couple times when inattentive drivers have failed to see me. The volume is great and gets attention.
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87 3.2 Carrera Targa 95 Land Rover Discovery 99 Saab 9.3 SE Convertible 14 Audi A6 3.0T Prestige 70 MG Midget (license plate OIL-LEK) Last edited by schnelltarga; 12-29-2015 at 01:00 PM.. |
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non-whiner
Join Date: Aug 2012
Location: Slightly right of center
Posts: 5,235
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Yep, you already have a horn relay stock:
http://www.pelicanparts.com/911/911_Parts/Electrical/911_electrical_82SC_Part3-1.jpg No need for another one.
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"Too much is just enough." |
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Vintage Owner
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Just installed them in my Targa and what a difference! I much prefer them to my old horns (which only had one trumpet working so it gave a weak blat). These could wake up the most brain dead driver out there.
May have to get some for my other cars as well. ![]()
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84 Targa (sold) 70 914-6 (sold) 73 914-6 2.7 conversion (sold) 75 GMC Motorhome (sold) 2016 Cayenne |
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Registered
Join Date: Jul 2006
Location: Charlotte, NC
Posts: 1,964
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I bought the PIAA version. Direct wire, work great!! Nice and small, so doesn't block the cooler.
Todd
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'81 SC |
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Senior Member
Join Date: Nov 2000
Location: Great NorthWest
Posts: 3,941
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Thanks to all of you. They look and sound awesome on my kid's Soobie.
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'78 Targa in Minerva Blue |
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