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Speedway Motors Bill Smith

Compact Ah-oo-gah Horn


Overall Length:
Sold in Quantity:
Diameter Big End:
"Trumpet" is plastic. Provides 112 decibles.

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Watch the video below to hear what the Speedway Motors Horns and Whistles sound like.




Q & A

What's in the Box

Classic "Ah-oo-gah" horn sound powered by a heavy duty motor. Commonly called the ooga horn. This oogah horn provides 112 decibels and is easy to install. 12 Volt.


Relay Kit: An ah-oo-gah horn uses as much electricity as some starters. A new horn with a "grinding" or "sick cow" sound is a sure sign it isn't receiving enough amps. Cure this and prevent an overheated circuit with relay 910-64044 and prewired plug kit 913-64381. This kit is highly recommended for safety reasons and best tone.

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Garage Sale - Universal Fan Relay Kits

UL 105C wire, pre-terminated at relay base. Heavy Duty Bosch relay takes the heavy-amp load off the switch, thus preventing an overheated circuit and a possible wire harness fire. Works well on horn circuits too. Includes relay, circuit breaker, wire, terminals and instructions.

When wiring this relay (to be used with fan sensor) follow these wiring instructions:
Red Wire - #87 Prong - Fan Motor
Black Wire - #85 Prong - Electric Fan Sensor
Red & Gray/White Wires - #30 & #86 Prongs - 12 volt +
Center Prong - Not used

Note: 2 red wires, lettered with:
"to battery source" - #30 Prong
"to + terminal on fan motor" - #87 Prong

With this relay, you can operate a fan rated up to 30 amps.


This relay is garage sale priced because it is discontinued.




Ah-Oo-Gah Horn

They're back! Bring back the exciting days of the Roaring '20s with one of the most popular horns of all times - the OO-gahh horn! We've found a limited supply of these 12 volt horns. Each comes with a mounting lug and wiring instructions.

Features a chrome trumpet and a steel motor.

Chrome Ah-Ooo-Gah Horn 12v

Chrome Ahhoogah Horn 12v 110 dB(A) 490Hz frequency.

Budget 40-Amp Relay Kit

Use this handy 40 amp relay to wire up your 12 volt horn, electric fuel pump, electric fan with sensor, shaved door handles, or whatever! Contains relay, plug, wire, and instructions.

The wiring would be as follows (included in kit instructions):

  • Red Wire #30 Prong = main 12V power source
  • Black Wire #85 Prong = Electric fan sensor OR low (oil) pressure switch OR grounding switch
  • Blue Wire #86 Prong = 12V toggle switch OR ignition switch "ACC" terminal
  • Yellow Wire #87 Prong = to fan or fuel pump + lead
  • White Wire or Center Prong = not normally used 

Fan or Fuel Pump Relay Installation Instructions (PDF)

Push Button Starter Switch

Momentary switch has rubber boot which protects switch from moisture. Easy install to give any classic car that hot rod feel. Features a high quality die cast zinc housing with brass terminals.

Book - How To Wire Your Street Rod
                        By Jack Sweeden. This book is a fully illustrated, instructional guide that takes you step-by-step through wiring your street rod.  12 pages.