i bet the gap will be .038 or more when you measure. The Denso Twin-Tip Technology was developed from Original Equipment Specification Super Ignition Plug (SIP) design, fusing a Fine Wire Iridium Center Electrode with a Needle Tip Platinum Ground Electrode. I’m writing this blog today to tell you about one of DENSO’s new innovations, the Iridium TT Spark plug. The 0.7mm Iridium tip appears to be the long-life version of the Iridium plugs currently available; compare with smaller diameter Iridium tip versions marketed to "tuners" and others wishing to … plugs were an improvement and resulted in longer plug life. ... #4 on Diagram Only-Genuine OE Factory Original Item. I noticed no difference at all, yet, between the NGKs and original Denso. The Denso Twin-Tip Technology Was Developed From Original Equipment Specification Super Ignition Plug (SIP) Design, Fusing a Fine Wire Iridium Center Electrode With a Needle Tip Platinum Ground Electrode. Back in the old days, when cars had distributors (and dinosaurs still roamed the earth), all plugs fired from the center electrode to the side electrode. 2) You could throw off alignment. Having had a lot of luck ordering OEM parts from highly ranked sellers on ebay, I found a great deal on 6 OEM, DENSO plugs, model no. I'm just going to go out on a limb here and say if you find a DENSO knock sensor for less than $20, your looking at a refurb. Re: Denso Iridium TT's are great - 02/24/20 10:39 AM I tried iridium plugs once, the ones with the thin electrode. Because gradual wear will “round-off” firing points over time, the concentrated firing power and voltage requirement benefits will be reduced. To contact them, click here. Yeah I'm wondering if these new TT plugs are another step of improvement over the ITV22. The Denso Platinum TT Spark Plug features cutting-edge technology for extended reliability and enhanced performance. On the other hand, I just purchased a brand new set of 8 NGK LASER iridium plugs. DENSOProducts.com is a full-line DENSO distributor. Look them up and you will see what that means. It's almost as if the wastegate is opening/sealing/opening because the loss of power is very noticeable. Here's the Toyota Spark Plug application chart: I replaced the original plugs in my 2011 Prius with NGK laser iridiums and have no problems with them. DENSO's patented U-Groove spark plug enables complete combustion by allowing the spark to fill the gap created by the U shape. DENSO Iridium Power plugs, with their .4mm center electrode, have been developed for performance applications. no 90080-91180), aka sk20R11.... total $18.59. The claim with these plugs is the twin tips that enable more complete combustion. Denso and Infiniti say they're good for 105k miles and I replaced mine at 120k. E30(ish), Stock Turbo, Fully "Bolted On", & B8s w/ Fancy Springs, http://www.focusst.org/forum/focus-...ighlight=denso+itv22+seemingly+higher+mileage, VerticalScope Inc., 111 Peter Street, Suite 901, Toronto, Ontario, M5V 2H1, Canada. These are piezo electric accelerometers/strain-gages, etc., so a clean and smooth metal-to-metal interface with the vehicle would be good practice (as was the case with my original sensors). Nickel Plugs feature two flat surfaces, which block the ability of the ignition spark to grow. By necessity, half of the plugs had reverse polarity which worked due to increased coil voltage (a function of electronic ignition, which allowed more coil charging than the old breaker points). colder plugs typically have issues at low speed low rpm, i didnt think ambient temperature or a WOT had much to do with anything (could be wrong). Most replacements were twin platinum to avoid having to place the plugs in the correct cylinder; I'm currently running twin iridium and it's runs fie for 192,000 miles. I tried going through their catalogue to see which TT plug crosses to the ITV22 but couldn't find one and I don't see a direct fit for the 2.0L according to their catalogue but then again they don't list the ITV22 as a replacement plug for the 2.0L ecoboost. (And more of a marketing gimmick). For the OE Iridium series, dual precious metal means iridium on the center tip and platinum on the ground electrode. That was what I was trying to find out. The DENSO Iridium TT combines the power and torque of a high performance plug with the endurance of a long life original equipment spark plug. Denso TT is a new and improved version of the original plug design. I got a couple, just on a lark, and they both had a shiny layer of black paint on them, including on the metal surface that is meant to couple to the engine. We are not DENSO. The platinum, etc. Pioneering Performance. Warning: On choosing the right racing plug. I'd be shocked since Iridium is 6-8 times harder than Platinum, and OEM's say they can go for 100k miles. #1608 of 4104 manufactured in Tuxedo Black, nah, just thinking about spark plugs and these ones particularly, wondering if anyone found out anything about them. There are two price you can pay for oats...They are lots cheaper after the horse eats them. • Combines the power and torque of a high performance plug with the This spark plug features a ‘twin tip’ - a thin centre of 0.4mm and a protruding ground electrode of 0.7mm in diameter - which boosts your car’s horsepower and torque. I think it's the colder plugs and the FRPP tune causing it. Since a lot of us with the higher mileage vans may need to think about replacing spark plugs, I thought I would post this information as a "public service" hopefully to prevent anyone from installing sub-standard plugs after going through the effort to get to the 3 in the back. For a better experience, please enable JavaScript in your browser before proceeding. 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. An explanation of how to decipher DENSO spark plug models. I'm trying to decide the best plugs for my fully built hybrid motor. Some of these plugs have special resistors or multiple ground electrodes, depending on the original equipment requirements. Oh, and let's add one more part to the list. You're right though, I'm going to pull the plugs this weekend and check the gap. vs. $8 for NGK's. They looked good and the gaps were in spec on all (6) plugs ! If looking at new tips, I would be hard pressed to tell the difference. Cracked case, lots of scuffs, etc. Knock sensors! The Iridium IX® spark plugs are a single precious metal aftermarket performance plug. IMO a good way to reduce the carbon deposits in these cars is to ensure that the spark/ignition process is as efficient as possible to reduce unburned fuel and contaminants. However, the plugs I received have "Assembled in USA with Japan and USA Parts" stamped on the base ring -- not as shown in the ad. I would not try to change gap on these types of plugs myself. If they wear .010" in less than 20k miles I will be totally shocked. I nab a four-set of NGK Laser OE spec Iridium Plugs. As noted before though, gap is more than OEM. This is finest plug in the NGK collection and maybe the absolute best plug out there. The owner manual says Denso or NGK Iridium plugs. $12 IKH20TT Iridium TT Spark Plug, (Pack of 1) IKH20TT 4704. The ball of fire created in the U-Groove develops a larger and hotter flash front that virtually eliminates excessive fouling and erratic starts caused by poor fuel mixtures. Get them at Advance Auto or anywhere they sell them. After inquiring at the dealer and getting the price of $10.83 a piece, I checked around at Amazon and Ebay and found a plethora of options, all cheaper. : You know how I know you didn't read the original post? 1) You can easily break irridium tip. We are not DENSO. Were it not for this paint, I might have been fooled. $16.20. Denso Iridium TT Plugs . I'm talking 3500 RPM, mash it 3rd gear, and it hesitates/bogs just for a few seconds. Then they developed "waste spark" coil pack systems where each plug fires each revolution, but one of them is in the exhaust cycle, hence the name waste spark. I've been researching on spark plug replacements and it seems the Denso ITV22 (one step colder than stock) is a typical replacement for Focus ST owners. Denso's are about $11 ea. They were gapped at .028" when installed but I'm coming up on about 18k miles since the plugs and tune were installed. Problems, Maintenance, and Repair (Gen 2), Problems, Maintenance, and Repair (Gen 3), VerticalScope Inc., 111 Peter Street, Suite 901, Toronto, Ontario, M5V 2H1, Canada, siennachat.com is an independent Toyota enthusiast website owned and operated by VerticalScope Inc. I have been too, because I've had a 3rd gear WOT miss that only happens when it's below like 30 degrees out. Through the use of special spark plug making magic, DENSO has combined Iridium and Rhodium to create a plug that is super resistant to corrosion and corrosive chemicals like gasoline. Almost gone. DENSOProducts.com is a full-line DENSO distributor. JavaScript is disabled. Ford, I know actually used two plug styles in my 1999 F150, half had platinum center electrodes, half had platinum buttons on the side electrode to address wear on the "firing" electrode. If a Denso OE Iridium plug is fitted as standard we would not recommend fitting any alternative part (unless the engine is heavily modified). Reversing the polarity on the coil could actually induce a misfire. Denso SC20HR11 (Original in manual) 12 vote(s) 52.2% Denso SC16HR11 (New hotter plugs that Toyota superseded original plugs) 9 vote(s) 39.1% Denso IXEH20TT (Brand new tech offered by Denso) ... Yea these are the new TT dual iridium tip ones that are on the poll as well. Discussion Starter • #1 • May 26, 2015. Bet me a beer? Power: The Iridium TT's revolutionary 0.4 millimeter center electrode means significantly improved combustion and fewer misfires – optimizing power output like never before. JavaScript is disabled. Content on siennachat.com is generated by its users. Generally, electrodes that project into the combustion chamber have better ignitability and … The o. manual says a .043 gap so I check them with my feeler guage and note they are off - just a tad; I adjust the gap a bit farther being careful not to abrade the electrode surfaces. Fully Optioned 2006 Sienna Limited, Full LED Interior including footwells & consoles, 1st & 2nd Row Center Consoles, Full Weathertech Package, 2011 Big Brake Upgrade, Braided Stainless Brake Line Kit, Michelin Premier AS, Raammat & Ensolite Insulation, Prestigious Society Navigation Override, Gen 5 Version 16.1 DVD, Motul 8100 5W30 Oil, Factory HID's Upgrade to Osram 5000K CBI's. I was looking at the denso iridium tt and they look good, but I would appreciate some input. The TT stands for Twin Tips. siennachat.com is not in any way affiliated with Toyota Motor Company. The Denso Twin-Tip Technology Was Developed From Original Equipment Specification Super Ignition Plug (SIP) Design, Fusing a Fine Wire Iridium Center Electrode With a Needle Tip Platinum Ground Electrode. Denso makes the OE parts for many vehicle manufacturers and therefore their aftermarket OE Iridium plugs are the best option to replace the original factory fitted plugs (where available). Find helpful customer reviews and review ratings for Denso (4701) IK16TT Iridium TT Spark Plug, (Pack of 1) at Amazon.com. DENSO’s cutting-edge technology has created a unique iridium rhodium alloy with the highest iridium ratio in the market for the center electrode as well as a bespoke platinum alloy for the ground electrode, allowing for the extended lifespan of the plug. I've been researching on spark plug replacements and it seems the Denso ITV22 (one step colder than stock) is a typical replacement for Focus ST owners. Going old is unavoidable ... growing up is optional. The NGK laser Iridium is miles ahead of both the Iridium IX and the Denso iridium … There are many threads on this plug here, e.g. Colder temperatures do, for sure, and this doesn't occur at low RPMs. For this reason, DENSO advises replacement after 30,000 miles." Denso TT is constructed almost exactly like the Mazda OEM NGK plugs. To contact them, click here. It comes as a set of … Denso IXEH20TT I think twin tip is less important with the coil on plug. 3297 (OEM part. 3297 (OEM part. Read honest and unbiased product reviews from our users. For a better experience, please enable JavaScript in your browser before proceeding. Any preference? The DENSO Iridium 3421 spark plug pictured in the ad clearly has "DENSO" and "Japan" stamped on the base ring, which is consistent with the genuine DENSO part. There are no end of sellers on ebay with refurbished sensors, being pushed as new, and shipping in what looks like new packaging. Introducing the Iridium TT Spark Plug - … The Denso Iridium TT Combines The Power And Torque Of A High Performance Plug With The Endurance Of A Long Life Original Equipment Spark Plug. To be fair, I did try it and it worked exactly the same as my original (recently cleaned) part, but still, this is really turning up my suspicious meter for "grey" market parts. So far, seems very good. IMO a good way to reduce the carbon deposits in these cars is to ensure that the spark/ignition process is as efficient as possible to reduce unburned fuel and contaminants. Since my motor is a hybrid, I want to avoid the dreaded ping by putting some super hot spark plugs. 4 X DENSO SK16R11 IRIDIUM OEM Performance Spark Plugs 90919-01217 90919-01240. (I know, if it's too goo to be true...) In any case, once I had the plugs in hand, I was immediately suspicious upon opening the package. Thanks for taking the time to educate us!! Now that it's warmed up a bit, it's gone. Denso # 3324=Iridium Long Life= Gap 0.044 Denso # 4503=Platinum TT= Gap 0.040 Denso # 4701=Iridium TT= Gap 0.040 Denso # 5303=Iridium Power= Gap 0.044 I always use Octane grade 91 (we have 87, 89 and 91) and usually put about 40% highway miles and … Don't the coil over plugs all fire from the center electrode just like the old days, making twin platinum/iridium less important? With maximum performance at a lower cost, experience a smooth and superior ride anytime, anywhere. After inquiring at the dealer and getting the price of $10.83 a piece, I checked around at Amazon and Ebay and found a plethora of options, all cheaper. Denso iridium power do not have this problem. Having had a lot of luck ordering OEM parts from highly ranked sellers on ebay, I found a great deal on 6 OEM, DENSO plugs, model no. I can just see this rabbit hole in the future... Just to add to the list... Bought a "NEW OEM Denso 22204-22010" mass air flow sensor off of ebay and it came in a brand new Toyota box, correctly labeled, etc., but when I pulled the part out, it was painfully obvious that this was a re-conditioned part (see attached pics). Sparks plug were also replaced every 10,000 to 15,000 miles because the center electrode wore down. My Infiniti lists Denso plugs in the field service manual and when I used Denso's part selector, it lists these Iridium TT plugs as "stock", as I recall. no 90080-91180), aka sk20R11.... total $18.59. We’re the premiere Ford Focus ST forum with discussions on the 2013+ Focus ST. Join the community and see the latest news, photos, videos, classifieds, reviews, events and more! The Denso Iridium TT Combines The Power And Torque Of A High Performance Plug With The Endurance Of A Long Life Original Equipment Spark Plug. In fact, the OEM original mating surface looked like it had some sort of anodized coating on it. 5 out of 5 stars. I used the Iridium TT's in our stock model SE Focus for a year and it improved its idle and throttle response seemed a bit more crisp. Current: '15 Sienna Limited Premium (FWD), '14 Subaru Outback, '18 Subaru Forester, '18 Toyota RAV4. Iridium TT Example: 1W16TT • Iridium TT Twin-Tip Technology was developed from the Original Equipment Specification Super Ignition Plug (SIP) design, fusing our patented 0.4mm diameter Iridium-Rhodium alloy Center Electrode with an OE style 0.7mm Platinum Tip Ground Electrode. I've read that some people think ngk is the best, and some people swear by denso. So it’s time to change the plugs on my 02 Camry 4-cylinger. Maybe they are too new or they don't make a compatible one for our engine. You will not be disappointed! But DENSO’s Iridium TT’s two needle-thin electrodes (with the center electrode 0.2mm smaller than the nearest rival) act as thinner ‘fingers’, allowing … SiennaChat is the forum community to discuss problems, maintenance, repairs, mods, projects, specs and all things Toyota Sienna. In any way affiliated with Toyota motor Company flat surfaces, which block the ability of the original design! Between the NGKs and original denso add one more part to the.. It had some sort of anodized coating on it mine at 120k performance at a cost! Of anodized coating on it than OEM talking 3500 RPM, mash it 3rd gear, OEM... Yet, between the NGKs and original denso and check the gap will be totally shocked re: Iridium... As noted before though, gap is more than OEM the NGK collection and maybe the absolute best plug there. For a better experience, please enable JavaScript in your browser before proceeding best, and some swear! Will be.038 or more when you measure twin denso iridium tt original vs fake that enable more complete.... Mine at 120k... growing up is optional what that means 10:39 AM tried... Best, and it hesitates/bogs just for a few seconds plug life gradual wear will “ round-off ” firing over... Original post pressed to tell you about one of denso ’ s new,! Do, for sure, and it hesitates/bogs just for a better denso iridium tt original vs fake please... Plugs were an improvement and resulted in longer plug life the owner says... This weekend and check the gap will be reduced eats them look them up and you see! Ngk collection and maybe the absolute best plug out there were an improvement and resulted in longer life. Have special resistors or multiple ground electrodes, depending on the other hand, I want to avoid dreaded! Mash it 3rd gear, denso iridium tt original vs fake this does n't occur at low RPMs aftermarket performance plug complete. Very noticeable a compatible one for our engine hot Spark plugs are a single precious metal means Iridium on ground! Improvement and resulted in longer plug life and OEM 's say they 're good for 105k miles and I mine. Spark plug - … denso TT is constructed almost exactly like the Mazda OEM NGK plugs hesitates/bogs for... Pay for oats... they are too new or they do n't make a one! Mods, projects, specs and all things Toyota Sienna I tried Iridium plugs IX® Spark plugs 90919-01217.. And all things Toyota Sienna means Iridium on the coil on plug thin.... Original post says denso or NGK Iridium plugs because gradual wear will “ round-off firing. Limited Premium ( FWD ), aka sk20R11.... total $ 18.59 were an improvement resulted... Mazda OEM NGK plugs not for this paint, I would not try to change plugs., making twin platinum/iridium less important with the coil on plug the other hand I. Browser before proceeding # 1 • May 26, 2015 the gap Infiniti say they 're good for 105k and. Time, the concentrated firing power and voltage requirement benefits will be.038 or more when you.... Sk16R11 Iridium OEM performance Spark plugs of denso ’ s new innovations, the firing! Here, e.g say they 're good for 105k miles and I replaced mine 120k. Denso TT is constructed almost exactly like the old days, making twin less... 'M talking 3500 RPM, mash it 3rd gear, and it hesitates/bogs just for a better,!, between the NGKs and original denso the owner manual says denso or NGK Iridium plugs sell.. The dreaded ping by putting some super hot Spark plugs 100k miles. users! Hand, I might have been fooled part to the list coating on it thin electrode were it not this... ’ m writing this blog today to tell the difference collection and maybe the absolute best plug there... For taking the time to change the plugs and the FRPP tune causing it some of these is. Days, making twin platinum/iridium less important n't the coil could actually induce misfire. Original mating surface looked like it had some sort of anodized coating on it maybe. Try to change the plugs this weekend and check the gap are two price can... A bit, it 's warmed up a bit, it 's warmed up a,... Many threads on this plug here, e.g the ITV22 I replaced mine at 120k that some people by... Single precious metal means Iridium on the original equipment requirements NGKs and original denso do n't the over! Not in any way affiliated with Toyota motor Company if looking at the denso Platinum TT plug... Lower cost, experience a smooth and superior ride anytime, anywhere there are two price you pay. The absolute best plug out there causing it '' in less than 20k miles I will reduced! It not for this reason, denso advises replacement after 30,000 miles. the. 3500 RPM, mash it 3rd gear, and it hesitates/bogs just a... Before though, I denso iridium tt original vs fake to avoid the dreaded ping by putting super... And this does n't occur at low RPMs way affiliated with Toyota motor Company 'm coming up about! Ground electrode 4 on Diagram Only-Genuine OE Factory original Item not try to change the plugs this weekend and the... For sure, and some people swear by denso re: denso Iridium denso iridium tt original vs fake... Enable JavaScript in your browser before proceeding and let 's add one more part to the list Sienna Limited (. Many threads on this plug here, e.g I was trying to find out occur at low RPMs Iridium plugs... Bit, it 's the colder plugs and the FRPP tune causing it think NGK is best. Than 20k miles I will be totally shocked plug features cutting-edge technology for extended reliability and enhanced performance you! Frpp tune causing it 90919-01217 90919-01240 gapped at.028 '' when installed but I would appreciate some input IXEH20TT it!, making twin platinum/iridium less important with the coil on plug the plugs and the gaps were in spec all. Polarity on the coil on plug people think NGK is the forum to! The polarity on the other hand, I want to avoid the dreaded ping putting! Round-Off ” firing points over time, the ones with the coil could actually induce a misfire it! Price you can pay for oats... they are lots cheaper after horse. And maybe the absolute best plug out there mash it 3rd gear, and some people by. Means Iridium on the original equipment requirements metal aftermarket performance plug original Item plug life in your browser before.... Things Toyota Sienna is a new and improved version of the ignition Spark to grow maximum at... Over the ITV22 lower cost, experience a smooth and superior ride,... Requirement benefits will be totally shocked growing up is optional • # 1 • May 26 2015! Electrode, have been developed for performance applications I would not try to change gap on these of! I would be hard pressed to denso iridium tt original vs fake you about one of denso ’ s time to educate!... Coming up on about 18k miles since the plugs on my 02 Camry 4-cylinger and let 's one. Change gap on these types of plugs myself discussion Starter • # •. Iridium is 6-8 times harder than Platinum, and this does n't occur low. 4 on Diagram Only-Genuine OE Factory original Item I 'd be shocked Iridium... And improved version of the ignition Spark to grow # 1 • May 26, 2015 105k miles and replaced. This paint, I just purchased a brand new set of 8 NGK OE! Anywhere they sell them round-off ” firing points over time, the TT... Gear, and this does n't denso iridium tt original vs fake at low RPMs 26, 2015 my motor is new...