Users' questions

What is Denso iridium TT?

What is Denso iridium TT?

DENSO has started to sell IRIDIUM TT spark plugs having a φ0. 4 mm iridium alloy center electrode and a 0.7 mm needle-type platinum alloy ground electrode. The iridium tip is mounted with an “All-around Laser Welding” method that insures high reliability even under the most severe driving conditions.

Is Denso the same as NGK?

While both NGK and Denso are both quality companies that make stellar spark plugs, it comes down to personal choice. You may like one above the other, but both are great spark plug brands, that have durability, longevity, state-of-the-art technology and more. Regardless of any spark plug you buy.

Are Denso iridium plugs good?

Denso plugs are installed on almost every automobile model manufactured in Japan. The iridium used in them has a superior hardness. The electrode’s diameter in Denso plugs shrinks more than an NGK. For this reason, Denso plugs do not last longer than NGK units, but they are better at producing powerful sparks.

Which Denso spark plug is the best?

Denso Platinum TT Plug
1. Editor’s Pick: Denso Platinum TT Plug. Combining advanced technologies, improved efficiency and performance, and the reputation of one of the biggest names in spark plugs, the Denso Platinum TT spark plug range is one of the best-selling spark plugs available.

How long do Denso Iridium plugs last?

60,000 to 80,000 miles
Denso Iridium Power series has an iridium center electrode with a traditional nickel ground electrode construction. Therefore, the ground electrode will wear out first. Typically we have found you can expect to get 60,000 to 80,000 miles on an unaltered motor.

Are copper spark plugs better than iridium?

Platinum and Iridium plugs perform at a lower level than copper spark plugs, because they are less conductive and they tend to overheat. However, the overall longevity of these two types of metal is better than copper plugs. In reality, copper has the best performance of all three and the worst longevity.

Does Toyota use NGK or Denso?

NGK and Denso are both fine plugs. Toyota uses both brands in manufacturing. On the V6, sometimes you see one bank with Denso and the other with NGK. IMO, get which ever one costs less because you won’t notice any difference between the NGK and Denso.

Is Denso owned by Toyota?

DENSO Corporation (株式会社デンソー, Kabushiki-Gaisha Densō) is a global automotive components manufacturer headquartered in the city of Kariya, Aichi Prefecture, Japan. After becoming independent from Toyota Motor, the company was founded as Nippon Denso Co. Ltd. About 25% of the company is owned by Toyota.

When should I replace my Denso iridium spark plugs?

Typically we have found you can expect to get 60,000 to 80,000 miles on an unaltered motor. However, because gradual wear will “round-off” firing points over time, the concentrated firing power and voltage requirement benefits will be reduced. For this reason, Denso advises replacement after 30,000 miles.

When should I replace iridium spark plugs?

Replacement spark plugs should usually be the same type (platinum or iridium) as the original if they are expected to last 100,000 miles. Standard spark plugs are only good for about 40,000 miles. On some applications, a double-platinum or double-iridium spark plug may be recommended.

Do iridium spark plugs increase horsepower?

Increase your performance. Iridium plugs take less voltage to fire which results in more coil dwell time. That translates to better combustion, lower emissions, better fuel economy and more horsepower.

What are the features of the Denso iridium spark plug?

IRIDIUM POWER uses DENSO very own U-Groove ground electrode to realize a superb ignitability while maintaining spark voltage at low levels. Get more power with an optimal fuel cycle. IRIDIUM POWER has a low required voltage and a high ignitability, resulting in less misfiring and no spark, the outcomebeing a dramatic improvement in combustion.

What’s the difference between Iridium TT and TT spark plugs?

The photographs indicate that, in the case of the Iridium Spark Plug, the size reduction of the gap (from 1.1 mm to 0.6 mm) interfered with flame growth, while in the case of IRIDIUM TT, flame growth was ample and greater than that of the Iridium Spark Plug in spite of the narrowed spark gap (0.6 mm).

How big is the electrode in the Iridium TT?

The most advanced technology in the world has been employed to enable use of electrode, at 0.4 mm in diameter, in the IRIDIUM TT. The smaller the electrode the more concentrated the electric potential at the tip of the electrode and the stronger the electric field that affects required voltage and the lower…

How are spark plugs used to Mount iridium?

The process used to mount the iridium tip is a highly reliable “All-around Laser Welding” process that is able to withstand all kinds of driving conditions. (For all plug types) In order to improve ignitability, the center electrode protrudes more than with conventional type plugs. This improves both acceleration response time and performance.