GOT CRUISER?
Toyota Land Cruiser and FJ Cruiser Off-Road Parts and Apparel
4wd@gotcruiser.com
Performance Distributors is leading the way in performance and racing ignition system innovation. Continuing to engineer products which allow you to “feel the power” is the goal of Steve Davis, President of Performance Distributors. A top notch R & D program, along with stringent product quality is the key to achieving this goal year after year. Kelly Davis, the founder of Performance Distributors (Steve’s father), designed the industry’s first H.E.I. Performance Distributor. Kelly, who had a background in drag racing and hot rodding, mastered the science (and art) of setting advance curves. This unique science was passed on to Steve, and the company is now the most respected in the world for their advance curve technology.
The D.U.I.-Davis Unified Ignition is the flagship product, and is ran on vehicles worldwide. Because we design our ignition systems as if we were running them in our own vehicles, quality, performance and reliability are the end result.
Performance Distributors insist on quality products, hard work and treating customers fairly. Every distributor is hand-built, calibrated on a distributor machine, and test fired before being shipped. This process leads to customer satisfaction while making us proud to place our family name on our products! Providing you with more power, torque, and efficiency is what we do – NOT just to ignite a spark. Thorough testing not only leads to a quality and durable product, but it also results in a product you can enjoy running in your car, truck, hot rod, boat or race car.
Performance:
How does Performance Distributors DUI distributor compare to a multi-spark ignition system?
The DUI is not like the multi-spark systems that utilize an external capacitive discharge ignition box. The DUI is a one piece ignition system with no external components. The DUI incorporates a high dwell module inside the distributor that increases the coil saturation time. The longer saturation time makes the coil produce one long duration spark as compared to several multiple sparks. The longer duration spark will improve throttle response and low end power. In conjunction with our 50,000 volt coil, spark plug gaps can be opened up to .055″. Most spark box systems recommend a gap of no larger than .045″. The DUI’s coil and module only draw 2-3 amps. Most spark box ignitions draw anywhere from 6-10 amps. The lower amperage draw of the DUI allows it to run cooler, making it more reliable than the spark box. The less amperage draw is very important if you are a racer that just runs a 12 volt battery with no alternator. Most importantly, the DUI distributor is custom tuned on a distributor machine for your vehicle and engine. Custom tuning insures maximum performance and eliminates detonation. This is a service that the other ignition companies do not provide. Instead, they’ll send you a curve kit so that you, the customer, can figure out your own advance curve.
What’s the difference between mechanical and vacuum advance?
Mechanical advance is the centrifugal weight and spring assembly located underneath the rotor that provides the largest part of the timing curve. The vacuum advance canister, located on the side of the distributor, provides additional timing only when the engine is pulling vacuum. The mechanical advance along with the initial advance (base timing set at idle) is what gives you total timing. An example of total timing would be 12° initial plus 24° of mechanical which equals to 36° total. Vacuum advance is not figured into total timing because it will only function when the engine is not under a load. Example: If your vehicle is cruising on a flat stretch of road or going downhill, vacuum advance will come in and add as much as 15° to the total timing for increased fuel mileage and cleaner spark plugs. It is not uncommon to see as much as 50° – 52° of timing with vacuum advance. But don’t be alarmed by this being too much timing as the vacuum advance will decrease once you accelerate and put the engine under a load. Under hard acceleration the timing will go back to the original total with no vacuum advance.
What type of spark plugs do you recommend with your systems?
In most applications, we recommend using Autolite Platinum Spark Plugs. These plugs have worked very well with our Distributors and Firepower Ignition Kits. You should retain the same heat range your engine calls for but open the spark plug gaps to the recommended setting as set forth by the distributor or ignition kit instructions. CAUTION! If you are running Nitrous on your engine, DO NOT use the Platinum plugs. Use a standard type spark plug as the nitrous will destroy the platinum tips.
How much horsepower will I gain with the DUI?
It is hard to say exactly how much the DUI will increase horsepower. Too many parameters are involved to answer this question with an exact answer. On average, the DUI will produce an increase of 15-20 horsepower over a stock ignition system. Your engine may see more or less depending on other modifications. The DUI has been dyno tested to provide 40 more horsepower over a stock GM HEI! Unfortunately, we cannot guarantee this type of result for everyone. But in most every case, the DUI will provide a noticeable increase in performance and fuel mileage.
Warranty:
The Street/Strip DUI and Tri-Power Ignitions have a one year warranty. All Racing versions have a 30 Day warranty. This warranty covers all parts and labor.
Copyright 2000-15. All rights reserved.
GOT CRUISER? - TOYOTA LAND CRUISER AND FJ CRUISER
Off-Road Parts Accessories and Clothing
GOT CRUISER? SYMBOL is a registered trademark.
DISCLAIMER:
"TOYOTA", "LAND CRUISER" , 'FJ CRUISER" are registered trademarks of Toyota Motor Corporation.
GOT CRUISER? is not affiliated with, or endorsed, sponsored, or supported by, Toyota Motor Corporation,
Toyota Motor Sales, U.S.A., Inc. or any of Toyota's affiliated companies. These terms are used for descriptive
purposes only, and not to denote affiliation or connection with Toyota Motor Corporation.
SHIPPING POLICY:
Shipping/handling charges are not included in the cost of parts and will be added when order is shipped. You will receive an email of total cost before your credit card is charged.
Please email or call if you have questions.