Toyota 4 Cylinder DUI Distributor


The DUI Advantage…

  • One Wire Hookup
  • Open Plug Gaps to .055″
  • Custom Timing Curve
  • More Power and Torque
  • Better Fuel Mileage
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SKU: 80420. Category: .

Product Description

Most of the Toyota Trucks from 1974-1989 were produced with the popular 20R and 22R 4 cylinder engines. The stock ignition system on these vehicles didn’t quite match the strength of this tough, hard working engine. Now, you can replace the weak ignition with our high output DUI Distributor! The DUI (Davis Unified Ignition) is the ultimate ignition system for this application. Featuring a high voltage coil and high dwell module, the all in one DUI just drops in and only one 12 volt hot wire is needed for hookup. The Toyota DUI is available in either the Street/Strip version (up to 7000 rpms) or the Racing version (up to 10,000 rpms). Due to the hotter and longer duration spark produced by the DUI, you will be able to open up the plug gaps to a whopping .055″. The larger gap provides a better burn of the fuel mixture which leads to more power and torque. No ballast resistor is required for the DUI like stock Toyota distributors and many aftermarket systems. Our DUI allows FULL voltage into the ignition system, giving you a hotter spark for more power, better fuel mileage, quicker starting and smoother idle. Each DUI is calibrated on a Sun distributor machine with a very accurate advance curve. With this custom timing curve, base timing can be increased from the factory setting of 0 degrees to 8 degrees. The increase in throttle response will set you back in your seat fast! The DUI is a real work of craftsmanship and although it is uniquely designed, replacement parts are easy to find. GM HEI replacement parts will fit right on the DUI and these parts can be found at any local auto parts store. Built for durability, the DUI has an upper and lower bushing, unlike stock Toyota distributors that have only one bushing. This adds strength and longevity to your ignition system. Each DUI is hand built, polished and lubed as it is assembled then test fired for quality assurance. For the best performance, we recommend a set of LiveWires with the Toyota DUI to ensure all of the 50,000 volts reaches the spark plugs. Please see Toyota LiveWires for more information.

The Street/Strip Toyota DUI has a one year warranty. The Racing version comes with a 30 day warranty.
*Not Legal For Sale or Use on Any Pollution-Controlled Vehicle in California.

LiveWires For Toyota DUI

Delivering a high voltage spark to the plug requires a quality spark plug wire. Our LiveWires are unsurpassed in quality by offering low resistance and high temperature protection. The 8 mm wire is covered by a heat treated fiberglass sleeve that protects the wire up to 1400° F. The spiral wound core is radio suppression so there is no radio noise or computer interference. Unlike universal plug wire sets, LiveWires do not require any assembly. All sets are custom fit and numbered at each end for the correct cylinder. Colors available are black, blue, purple, red, silver and yellow. Please visit our LiveWires page for more information.

Additional Information

Toyota 4 Cylinder DUI

Toyota 20R and 22R DUI Distributor, 74-89 w/ Power Steering Pump, Toyota 20R and 22R DUI Distributor, 74-89 w/o Power Steering Pump, Toyota 20R and 22R Racing DUI Distributor w/o Vacuum Advance

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