As this figure shows, IRIDIUM TT can reduce the Pmi COV approximately 3.1% and accordingly reduce fuel consumption by 2.4%, compared with the Iridium Spark Plug. after replacing bosch +4 platinums with these denso iridiums, the engine starts faster and runs smoother. Denso's Tough Plug design combines an ultra fine 0.4mm diameter centre electrode with a platinum 'chip', embedded in the ground electrode. Manufacturer / Iridium Long Life Plug - Patented Iridium Alloy Plug (90% Iridium) with Platinum Ground Strap Features: SK16R11 A higher idle speed represents higher ignitability. Both are suppose to be long life plug with iridium tip and platinum pad. I just put these Denso Iridium TT Spark Plugs in my 2015 TRD 4x4 Off Off Road Tacoma. Engineered with the smallest tip in the market, the DENSO Iridium TT spark plug delivers more complete combustion, giving you superior fuel economy over any other plug. Iridium: 8 times stronger than platinum, 6 times harder, and with a melting point 1200 degrees higher. I've got a set of NGK PFR5J-11 which theoretically are factory gapped to 1.1mm and my service manual says 1.1mm so should match. to enable use of electrode, at 0.4 mm in diameter, in the IRIDIUM TT. Denso TT is constructed almost exactly like the Mazda OEM NGK plugs. I have the Denso Long Life Iridium SK20R11 and NGK OEM Laser Iridium IFR6T11 side by side. Proper gapping is especially essential in modified vehicles. The owner manual says Denso or NGK Iridium plugs. A spark plugs gap directly affects the tip temperature and the voltage necessary to fire the plug. *Gapping is not recommended on multi-ground plugs. And last of all, a couple of weeks ago, I put in the Denso Iridium Twin Tip plugs, took a trip and got 18.6 mpg. This design delivers less obstruction between the ground and electrode to offer an Omni-directional spark, which is a fancy way of saying it produces a larger explosion … A spark plugs gap directly affects the tip temperature and the voltage necessary to fire the plug. The evaluation was conducted by turning on the ISC and setting the average engine speed to 800 rpm (idling). - ANY TROUBLE NOT ATTRIBUTABLE TO DENSO SPARK PLUGS. TT or Twin-Tip technology promotes spark energy concentration and explosion, which translates into improved acceleration and economy. Denso Platinum – PK20R11 – gap 0.8mm Denso Iridium – IK22 – leave gap alone. This figure shows the results of evaluating IRIDIUM TT. iridium, the gap is wider than in normal type (0.7 → 0.9 mm). Jaguar Land Rover Spark Plug Set (6 Pieces) (Iridium TT) (Gap 0.040) 0041593903 - Denso 3992938KIT. It's crazy I know but it did. We are not DENSO. IRIDIUM POWER uses DENSO very own U-Groove ground electrode to realize a superb ignitability while maintaining spark voltage at low levels. Illustrates increased space between electrodes, reducing quench, while maintaining same plug gap. Harnessing the low required voltage of the 0.4 mm dia. Denso Iridium Spark Plug types Denso Iridium Tough Plugs. Iridium TT™ Hot Type Spark Plug - Part Number 4701 by Denso. Denso will not warranty a plug who’s center electrode is snapped during gapping. As a result, combustion is good for all types of driving, the engine starts easily, and acceleration improves. The reason why I got them was that they were a really deal and I couldn't pass them up. Continuous R&D work has achieved additional patented technologies for Aftermarket. 14R-4CIU EA0,5 Z205 Federal Mogul® (Beru) spark plugs for stationary gas operated industrial engines, are manufactured of high quality materials that are resistant to combustion. Fuel Economy: Invented by DENSO, the Iridium TT Twin-Tip Technology enables larger spark concentration and explosion, delivering more … Pmi COV (coefficient of variation) in the diagraph shows fluctuation in IMEP (indicated mean effective pressure). A plug’s gap must be adjusted to account for these changes in engine conditions and ensure a successful ignition sequence. SAAB Ignition Wire Kit (7mm) (4 Pieces) (Iridium TT) (Gap 0.040) 30520467 - Denso 4002347KIT Jaguar OE: EBC11480 Mercedes-Benz OE: 0031597603 , 003159780326 SAAB OE: 5958798 , 7505142, 8819294 , 30520467 Denso Iridium Spark Plug types Denso Iridium Tough Plugs. I'm a big fan of denso iridium TT "super sparkplugs" (120,000 miles+, 0.4mm iridium wire and platinum tip on ground, high performance, fuel saving). The owner manual says Denso or NGK Iridium plugs. TT or Twin-Tip technology promotes spark energy concentration and explosion, which translates into improved acceleration and economy. I bought those and am about to do the install. The Iridium TT is designed to last beyond 100,000 km. 2010 Lexus LS460. Spark Plug manufacturers typically warn against gapping fine wire spark plugs due to the fragile nature of their electrodes. Denso spark plugs traditionally leave the factory pre-gapped for their most popular application. Fig. Less stock, same coverage: TT Plugs cover many applications with fewer part … Denso calls this a minimum quench electrode design and claims improved fuel economy, faster starts and enhanced flame propagation for increased engine efficiency. Denso's Tough Plug design combines an ultra fine 0.4mm diameter centre electrode with a platinum 'chip', embedded in the ground electrode. = the parts your new car were built with). I ordered denso iridium tt 4705 plugs. The above shows the strength of electrical field in case certain voltage changes on Iridium plug and IRIDIUM TT. RockAuto ships auto parts and body parts from over 300 manufacturers to customers' doors worldwide, all at warehouse prices. NEW SERIES ON MY CHANNEL GUYS! Always use a special spark plug gapping tool to change the gap. So it’s time to change the plugs on my 02 Camry 4-cylinger. Now, that technology is available to everyone. If looking at new tips, I would be hard pressed to tell the difference. Racing, Iridium Plus, and Iridium Tough, Iridium Long Life, Double Platinum, U-Groove, Resistor, Standard, Nickel TT, Platinum TT, Two-Tops. Denso # 4710 0.4mm Iridium Center Electrode 0.7mm Platinum Ground Electrode Larger spark translates to more power and superior fuel economy 0.4 mm iridium center electrode: world's smallest diameter that maximizes firing potential 0.7 mm needle tip ground electrode: promotes higher spark energy and less heat quenching This spark plug features a ‘twin tip’ - a thin centre and a protruding ground electrode both 1.1mm in diameter - which enhances your engine’s efficiency and extends the spark plug’s shelf life. Power: The Iridium TT's revolutionary 0.4 millimeter center electrode means significantly improved combustion and fewer misfires – optimizing power output like never before. To lower the required voltage and improve firing performance. Fig. Fig. However I've found to be alot less than that, and I have doubts all six are wrong. Do not change the gap on platinum, iridium or twin tip spark plugs, as the fine electrodes may get damaged. 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. With nickel plugs, especially with motorcycles, the gap may need adjustment. ※”Spark plugs” means any type of DENSO’s spark plugs, including but not limited to Iridium Power, Iridium TT, Iridium. *1 FEM(Finite Element Method analysis): General method to measure electrical field strength. Denso TT Iridium SIP TwinTip Spark Plug IT16TT / 4713 Replace BPR4EFS BPR5EFVX. DENSO Spark Plugs 93% car model coverage. They say a fine wire plug will outperform a standard spark plug, even if not properly gapped. High quality materials are use throughout. DENSO selected Iridium and engineered it with Rhodium to build the most durable alloy for spark plugs. RockAuto ships auto parts and body parts from over 300 manufacturers to customers' doors worldwide, all at warehouse prices. I can't find a cross reference source either, but if Denso does publish a cross reference for the Iridium TT again the ITV22, I might be tempted to try them. Now mine is a base model, so it didn't come with iridium plugs installed. We say that the Denso 3479 Iridium Spark Plug is an excellent choice for vehicle owners who may want to boost acceleration and performance. 1 shows the results of studying the influence of electrode shape on flame growth, using the Iridium Spark Plug and IRIDIUM TT. This figure shows that IRIDIUM TT are superior to the Iridium Spark Plugs in ignitability. However, a plug may fit hundreds of engines, from cars to golf carts. What this means is the Denso Iridium TT is equipped with two tips: a 0.7-millimeter Platinum ground electrode, and a 0.4-millimeter iridium center electrode. ... Yea these are the new TT dual iridium tip ones that are on the poll as well. 0.4mm Iridium and 0.7mm Platinum Twin-Tip Technology. Even if the preset gap matches that required by your engine, it is always good practice to physically check the gap as it may have shifted during transportation (not all spark plugs are packaged in a way that protects the firing end ). By making this a single electrode, the spark location is stabilized compared to in normal types (double ground electrode), securing an … If you're searching for automotive parts that are OE-grade or better, go with Denso products, which are built to deliver superior performance each day. Therefore our recommendation is to upgrade to longer DENSO Iridium spark plugs, which improve ignition and engine performance, as well as extend the spark plug replacement interval. These observations show that, as the results of the ignition/firing simulation indicated, a fine ground electrode can reduce required voltage because it enables the spark gap to be narrower, while realizing higher ignitability than the Iridium Spark Plug. Unparalleled, the Iridium TT is designed to last beyond 100,000 miles providing coverage for most makes and models on the road today. The photograph shows flame reflected by the variation in density. TT or Twin-Tip technology promotes spark energy concentration and explosion, which translates into improved acceleration and economy. This design is the optimum aftermarket Iridium Plug for … In this video, i have described the proper way to clean the spark plug at home with basic equipment. Sure it was not a long trip, just 116 miles or so, but as I posted, I have never, EVER gotten better than 16.8 mpg on my truck, and that 16.8 was a one time deal. Power: The Iridium TT's revolutionary 0.4 millimeter center electrode means significantly improved combustion and fewer misfires – optimizing power output like never before. New laser welding techniques make it possible to make a spark plug with an iridium electrode. Be the first to know about sales and promotions, Even if the preset gap matches that required by your engine, it is always good practice to physically check the gap as it may have shifted during transportation. This item Denso (4702) IK20TT Iridium TT Spark Plug, (Pack of 1) DENSO IK20 Iridium Power Spark Plug Ik20 X 4Pieces Ignition Plugs Racing Upgrade 6 PCSNEW -- DENSO #4504 PLATINUM T T … Or what? 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). Introducing the Iridium TT Spark Plug - featuring, at 0.4mm, the worlds smallest diameter centre electrode and a 0.7mm ground electrode. Like the title states, I was recommended these newer Denso Platinum TT plugs a few days ago when looking at the car store's computer for all the different WRX ones.