-11 plugs discontinued?????? All went well, I removed the TP switch to not get cleaner in it. If the quality of construction is ok and the heat rating is correct for the engine and conditions, I doubt you would notice any difference between the "conventional" construction and the "iridium" one. 21 and 42 footers. But then what would you get out of it? Choose brandname and start typing model number. Great work bonesv and vintagegarage. The Honda Spree calls for both NGK BPR6HS and BPR6HSA plugs in the manual, but the latter is called out for 1985+. #3. They seem to just have a resistor in for radio suppression and maybe a different gap 0.7 vs 0.6 (but the gap can be set) FWIW, I was interested in indexing plugs at one point, remembering that it used to be an old racer's trick back in the days of hemi-head pushrod motors, which presumably benefitted from a more optimized flame-front travel with indexing. Resistor Type. Generally, one can use bar and chain oil for his Ryobi chainsaw. This last step reduced the soot on the plugs and in the tail pipe, and made the engine run much smoother. For 13/16 in. -1980 280ZX's came with BP6ES-11. 3. 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. Generally, the price of the NGK BPR4ES spark plug ranges from 3$ to 10$. Would carb fart on me and ping much more than usual. If you want to keep your favorite lawn neat and green, having a top-notch mower engine has no better alternatives! I'm very proud to bring it to you. But I don't think it has ever been proven objectively. NO. NGK BPR6HS Standard Spark Plug. "NGK "R" or resistor spark plugs use a 5k ohm ceramic resistor in the spark plug to suppress ignition noise generated during sparking." If you have a resistor plug boot you should switch it out for a non resistor boot. Once these 4 are used up, back to the cheap stuff. So I have a set of the 7's and 6's just incase the 7's give me troubles because im not up to 16psi+yet. The new hanging pedal set up certainly solved the under floor issues, and the gas cap. BP6HS or BPR6HS? Members; 2.5k My bike(s): A resistor-type spark plug has an inbuilt resistor that decreases the noise level of the ignition made when you start your car. Share More sharing options. To be very specific, the Ryobi brand itself makes Ryobi lawn mowers. All material except where indicated. http://www.ferrarichat.com/forum/showthread.php?t=369716, http://www.youtube.com/watch?v=m-oLGUE3hFE, http://www.beru.com/aftermarket/product-finder, (You must log in or sign up to post here. 60 day replacement if defective. Do you find the codes confusing or are you having a hard time wondering, which spark plug is the one you need. There are 63 replacement spark plugs for NGK BPR5HS. Average-Nobody 6 mo. Funny you should ask,I fitted R plugs last week,as an experament to see if it helped with Radio reception,it did a bit BUT starting suffered a bit and power is also down,I am going back to the BP plugs so see if this fixes it,BTW this is on a Pantah 600.Also in the Irideum style plugs they only come as R type. (The electrode's temp is higher due to less surface area=better burn off characteristics.). Though there are several series of NGK spark plugs in the market, in this article, we will only discuss the differences between the NGK BPR4ES Vs BPR5ES. OE Series Standard Nickel Spark Plug: Conventional Tip Design, BPR6HS. Aug 13, 2002. This item: NGK (7022) BPR6HS Standard Spark Plug (4) $14.99 Generac OIL FILTER 90 LOGO ORNG-CAN 90mm High Capacity 30% More Filter $11.91 Generac Part # AIR CLEANER HSB Discontinued by Manufacturer $24.99 NGK 7022 BPR6HS Standard Spark Plug, Pack of 1 1,304 Amazon's Choice in Automotive Replacement Spark Plugs 15 offers from $7.05 14 mm thread diameter and 0.75 in. He believed he could make an engineer of me. Jan 27, 2021. Sign up for a new account in our community. Read reviews for average rating value is 3.6 of 5. As far as I can see, that is the only difference, but that doesn't mean that it is, as I am about half blind. I was working on my Ryobi pressure washer with Honda GCV190 the other day and had to read repair manual for it. She is the only person who believes in me, and supports me, 100% in all of my endeavors. I noticed that the one in the mower had a flat where the plug is while the other is countersunk. I will be willing to take a guess and say the difference is the BPR6HSA plug comes. The optimal firing end temperature is approximately 500C (932F) to 800C (1472F). There are 180 replacement spark plugs for NGK BPR6HS. E3 Spark Plug Cross Reference for AC Delco, Autolite, Bosch, Champion, Denso, Motorcraft, NGK, and Splitfire spark plugs. Post your 'Electrical & Gauges' FAQs, comments & questions regarding Ducati motorcycles here. They seem to just have a resistor in for radio suppression and maybe a different gap 0.7 vs 0.6 (but the gap can be set) So it just looks like it may just be a plug that has a resistor and also runs a bit colder than the 7ES See here Seems to run fine - anyone know of any long term issues with this plug ? For mild crossflow we used a 7 and higher spec we ran 8 both with platinum electrode tips which were more tolerant of excess fuel deposits from Webers finest, 7WotW The main difference between the NGK BPR4ES and the NGK BPR6ES is the BPR6ES spark plug is two heat ranges colder compared to the BPR4ES spark plug. In that case, moving onto the cheap way of how to make a lawn leveling rake on your own is a holy grail. BPR6ES NGK Spark Plug Replaces Autolite 4263, Bosch WR6DC, Champion RN7Y, Denso W20EPR and Torch F6TC and F6RTC OEM approved Complete combustion and lower emissions Easier starts and less fouling Long-life spark plug Single plug blister pack Specifications Color/Finish Nickel Includes (1) BPR6ES Spark Plug Package Quantity 1 Product Type Washington. See, The 'R' means resistor in NGK legend speak the 'S' is for single electrode the number refers to the heat range of the plug for NGK the higher the number the colder the plug will run so more suitable for tweaked motors as it's capable of conducting more heat away to the head to reduce the risk of pre ignition from an incandescing tip. I was thinking the same and was just googling to check my memory to confirm. More than anyone else, I want to dedicate these to my amazing late mother, who nurtured, cared, loved and motivated me all of my life. We suggest you consider the aspects discussed in this NGK BPR4ES vs BPR5ES article before selecting one between them. Anyone use the "R" ones? Is the "Y" for the v-groove and hence all is well, or is there some other difference and I installed non-recommended plugs? I have a couple of unmolested boxes of each. On the other hand, the NGK BPR5ES comes with cold-rolled threads that prevent damage to the cylinder head. Have you ever wondered what the Spark Plug codes mean? NGK Standard spark plugs are proven technology that offer reliable performance. Bpr6es in 525 efi. I always wanted to confirm what the "A" versus the "Non-A" type plugs was all about.I too though tit was the threaded removable "cap", but I think we now know for sure. I am always thinking of you!Finally, I want to give all of my love and gratitude to my incredible wife, the only woman I ever have, and ever will, truly love. You need to be a member in order to leave a comment. ago. No need for 7's on any mildly tuned road car. thanks in advance to al lwho may respond. IMO they both were a waste of $$. So, does Milorganite kill weeds? Weeds in your lawn take the upper hand over the useful and beneficial grass because of the suitable, Read More Does Milorganite Kill Weeds? Whould we on a guzzi??? Brickboard.com is a Volvo owner/enthusiast site, similar to a club, and does not intend to pose as an official Volvo site. Copper plus spark plug. Post Specifications for NGK BPR5HS. -1977-'79 280Z and 280ZX's came with B6ES-11. There are 63 replacement spark plugs for NGK BPR5HS . ACDelco CR42CXLS BPR6ES. Gap Size: 0.40 inch. BPR6ES resistor plug,,, otherwise same as above BPR6ES-11 resistor plug,,, -11 denotes wider gap .042-.044 or 1.1MM, hence the -11. The NGK BPR4ES has a fixed and solid terminal. It doesn't exactly work out the way you think, but none the less it should be fine. the BPR6ES will fit properly in any engine that uses the BPR5ES and vice versa). OK the old ones were regaular, these were v-groove. Caractristiques principales. Any offers ? NGK's performance and heat dissipation capacity cannot beat that of Champions. Conductivity. Yes, it can be used to control the weeds along with some other herbicides. For a mower, use the BPR5ES.Set the gap to 0.7-0.8mm (0.028-0.031 inch). 24,510. Do you find the . Don't know who has these in their car nor how good they are but, Bosch has the Iridium plugs as well. Dave, I agree. For those of you familiar with spark plug numbers, the above 2 plugs would be same thread and electrode height, with the "A" being a different design feature. My aim is to help educate and inform others.Many thanks for watching Craig Kirkman (Owner and Creator of the 'The Repair Specialist' Channel) champion ngk mega-fire autolite bosch denso l86c/130-161 b6hs/130-712 2656 w8ac w16fs-u In most engines, performance will improve when the spark plug gap opens toward the intake valve (s). rn9ycc bpr6es rn9yc4 bpr6es-11 rn10gy bpr6ev rn10y bpr6es rn10y4 bpr6es-11 rn11y bpr5es rn11yc bpr5es rn11ycc bpr5es rn11yc4 bpr5es-11 . Thousands of people like you asking their problems, why not you? I inquired about it a few years back on GuzziTech. Size. See Here: You can also check out the ultimate guide on Kenda Klever AT2 vs RT tyre. ACDelco R42-6FS BPR6HS ACDelco R42CF BR6HS ACDelco R42CFS BPR6HS ACDelco R42CLTS BPR6EFS ACDelco R42CT BR6FS ACDelco R42CTS BPR6FS ACDelco R42CXL BR8ES ACDelco R42CXLS BPR6ES I'll put a new air filter in too (4.99) balidey I hold up buses Joined Jan 9, 2006 Messages 1,107 Location Does Milorganite Kill Weeds? The NGK BPR6ES is cheaper compared to the NGK BPR4ES What does the R stand for on an NGK Spark Plug? Company reg no. I don't know if it is BS, but Hare Racing recommended them when I was having some detonation problems. There are 180 replacement spark plugs for NGK BPR6HS. Seems as if this mystery has been solvedIve always wondered why some plugs I buy had tips while others didntI guess I didnt notice the A and non-A being the reason. by noiseguy Mon Jun 25, 2018 3:33 pm, Post Product image(s) are for illustration purposes only. Our cars are 42+ years old, and were designed to run on leaded gas. As I recall the main use of platinum and iridium in spark plugs it to allow longer times between changes. 0.1 more miles per gallon and a topspeed of one 12.2 feet per minute faster? Though in the end, it comes to your preference, we will still recommend you go for the NGK BPR5ES spark plug. So, we can say that the NGK BPR5ES spark plug lasts longer compared to the NGK BPR4ES spark plug. I need to find some new hatersthe ones I have are starting to like me. Jan 11, 2001 23,592 When it comes to durability, the NGK BPR5ES spark plug wins the race. The the other shop has BPR6ES (colder plug) at 6.76 for 4 inc vat. Thank you for 40 Golden years mom. That was the bike. I was having this exact same argument inside my brain! The NGK BR6ES cross references to the Champion RN4C. wr7d bpr6es wr7dc bpr6es wr7dcx bpr6es-11 wr7dp bpr6es wr7ds bpr6ev wr7f bpr6s wr8ac br5hs wr8c br5es wr8cc br5es wr8cp br5es wr8d bpr5es wr8dc bpr5es wr8dco bpr5es wr8dcx bpr5es-11 wr8dp bpr5es wr8dpx bpr5es-11 wr8dpy bpr5es-15 wr8ds bpr5ev wr8e br6s wr8ec br6s wr8ep br6s wr8f bpr5s wr8fc bpr5s wr8fp bpr5s wr8fpy bpr5s-15 wr8hp zgr5c wr9ao . Shop by Vehicle. Platinum Member. Lastly, the triple seal feature of the NGK BPR4ES spark plug prevents any gas leakages. The cross references are for general reference only, please check for correct specifications and measurements for your application. www.importationsthibault.com www.importationsthibault.com impor tations 897 tires/tubes/ mx acc. Steve Magnusson Two Time F1 World Champ. BPR6ES - Thread diam = 14mm Construction = Projected insulator Thread Reach = 19mm (3/4") Firing End = 2.5mm center electrode BKR6E - Thread diam = 14mm Construction = 5/8" Hex with ISO projected tip Thread Reach = 19mm (3/4") Firing End = 1.5mm center electrode with V-groove Recommended Posts. The NGK BPR4ES sparks hotter to aid it to start when the tractor is cold. The BPR5ES will run hotter than the BPR6ES. There are 27 replacement spark plugs for NGK BPR7HS-10. I've been running that thing with "wrong" plug . 2023 Inside The Yard- All Rights Reserved. Followers 0. Denso (4504) PK20TT Spark Plugs, Pack of 4, Denso (3021) W16EPR-U Traditional Spark Plug, Pack of 1, DENSO IK16 Iridium Power Spark Plug Ik16 X 4Pieces Ignition Plugs Racing Upgrade, Denso (3047) W20EPR-U Traditional Spark Plug, Pack of 1, Denso (3031) W16EXR-U Traditional Spark Plug, Pack of 1, Denso (3297) SK20R11 Spark Plugs, Pack of 4, DENSO # 5358 IRIDIUM Power Spark Plugs -- IK20L ----- 4 PCS NEW, DENSO # 3324 Iridium LONG LIFE Spark Plugs -- SK16R11 ----- 4 PCS NEW, Denso (3297) SK20R11 Iridium Spark Plug, Pack of 1, DENSO # 3417 Iridium LONG LIFE Spark Plugs - SK16HR11-4 PCS * NEW *. I think weight reduction through matter expulsion would be a bigger increase in power to weight ratio though. My very first manager (Mr Nadin), who gave me a chance straight out of school despite me not being the most ideal candidate for the position of engineers apprentices at the time. NGK spark plugs have better and higher conductivity. This item: NGK 130847 (7022) BPR6HS Standard Spark Plug, Pack of 1 $7.61 Generac - OIL FILTER 90 LOGO ORNG-CAN - 070185ES / 070185E 90mm High Capacity (30% More Filter) $11.97 Generac Part #: 0E9581 - AIR CLEANER GTH530 HSB (Discontinued by Manufacturer) $24.99 spark plug bpr6hs torch e6rtc e6rtc spark plug ngk r br6hs e6tc spark plug , < Click HERE for Instructions on Posting Pictures >, Italian Bike [non-Ducati] Photo Gallery, BevelHeaven Classifieds - Vintage Italian 'For Sale' & 'Wanted' Ads, BevelHeaven Sponsors - Supporting Vendors Who Support This Place and You, Click here to become a supporting vendor and sell your products, Bevel Heaven - Ducati Restoration Parts & Accessories, BevelHeaven.com eStore & Website Happenings, http://www.ngksparkplugs.com/techinfo/s sistor.asp. So, you need to screw the NGK BPR5ES spark plug to mount in its place. Have called many retailers here in Panama and they only. Spark Gap-1.3mm Gap. by S4Patrick Mon Jul 09, 2018 5:34 pm, Powered by phpBB Forum Software phpBB Limited, The place to discuss rides, accessories, or whatever is tangentially Spree/Elite-related. Enter your vehicle information to find correct fit. 2. crazyguytotally4 6 mo. What does BPR5ES fit? Post your 'Electrical & Gauges' FAQs, comments & questions regarding Ducati motorcycles here. I can't say it cured the problem, as there were several things "wrong" at the time, but I do trust Hare Racing not to steer me toward "snake oil". This chart might be hard to use these days as Bosch has changed their part numbering system. But the brand has some history behind its name. Another important difference between these two spark plugs is their price. Tread Diameter:0.551. How to Fix Lawn Striping from Fertilizer- Best Way to Fix. NGK NGK7022 BPR6HS Spark Plug, 1-Pack, Multi-Colored, Standard, 130-847 Brand: NGK 1,303 ratings -32% $896 Was: $13.10 Number of items: 1 1 10 About this item Solid copper core for greater spark Longer insulator nose prevents fouling Corrugated ribs on insulator prevents flashover Zinc dipped shell prevents corrosion BPR5ES plugs are also designed for use with leaded fuel, while BPR6ES plugs can be used with unleaded fuel. Oct 22, 2000. Yes the tiny electrode does indeed run hotter, and in your case it obviously stayed hot enough to cause pre-ignition! I usually buy Bosch out of choice. On that note, it drives great. While there are a lot of differences between the NGK BPR4ES spark plug and the NGK BPR5ES spark plug, there are still some similarities between them. Stay tuned to know more. Most cars now use platinum and have 100,000 intervals for changing. Spark plug is a spark plug. It is because the NGK BPR5ES spark plug is cheaper, lightweight, and lasts longer than the NGK BPR4ES spark plug. That said, like most folk I do try to stick to the make I have had least issues with. ..I've been happily using the 7ES plugs, but recently popped into the motor factors without my usual parts list , and got given a set of BPR6E correct for a 1600 crossflow engine. Re: Difference between BPR6HS and BPR6HSA plugs? BPR5ES plugs are made of nickel alloy, while BPR6ES plugs are made of iridium. Please let me tell you why I am making these videos!MY MISSIONMy mission is to take subjects that can seem quite daunting and somewhat difficult to understand and explain them in such a way that everyone can understand and benefit. Running the 6ES plug in an engine designed for a 5ES plug will result in premature fouling since the 6ES is a colder plug. I have never heard of anyone going as cold as "8".anyone? It means the 5 heat range level in the NGK BPR5ES keeps it colder compared to the BPR4ES spark plug which has the highest 4th thermal stage. Posted July 30, 2005. antonio carroccio. ). Yes indexing plugs make more power, particularly on poorly design combustion chambers with high compression. People who want to know What is the difference between NGK BPR4ES and BPR5ES?, need to know the difference between their terminal types. It also has triple gasket sealing features like the NGK BPR4ES, which virtually removes gas leakages past the shell. I got rid of my pinging and rough running by doing a proper tuneupthe plugs didn't do anything for that. I'm getting a slight misfire when it is running fairly hot Wonder if an NGK patent expired recently since that Bosch design is identical to the NGK and Bosch used to use a different style/construction for their exotic plug design. Sadly, some of them are no longer with us to see these videos, which I really want to dedicate to them. But I doubt one could tell the differnence without ten before and after runs on a dyno. | NGK Standard plugs are an OE cornerstone that have provided decades of reliable performance. 94 3000GT VR-4, North_Dakota. Pete Roper replied to my post, saying that (to put it a little more delicately than Pete did ) having a regular morning constitution before a ride would provide a greater benefit to performance than indexing plugs. The cross references are for general reference only, please check for correct specifications and measurements for your application. This is useful, Don't forget the winter raffle! More miles per gallon and a topspeed of one 12.2 feet per minute faster generally, one use. To take a guess and say the difference is the one in the end, it comes to durability the. At 6.76 for 4 inc vat sign up for a mower, use the BPR5ES.Set gap. I 'm very proud to bring it to start when the tractor is cold under! Codes confusing or are you having a top-notch mower engine has no better alternatives is useful, do n't if... Had to read repair manual for it the NGK BPR4ES has a fixed solid... But then what would you get out of it be willing to take a guess and say the is! Longer than the NGK BPR4ES spark plug specifications and measurements for your application & # ;. 2001 23,592 when it comes to your preference, we can say that the NGK BPR4ES plug! Ten before and after runs on a dyno poorly Design combustion chambers with high compression is cold aspects discussed this. Few years back on GuzziTech do n't know if it is because NGK. The NGK BPR5ES spark plug codes mean exactly work out the way you think, but the brand has history... Difference is the only person who believes in me, 100 % in all of pinging! Vs BPR5ES article before selecting one between them did n't do anything for that was having this exact argument... An NGK spark plug wins the race waste of $ $ has a fixed and terminal... Longer times between changes cheap stuff take a guess and say the difference is the BPR6HSA comes... N'T think it has ever been proven objectively end temperature is approximately 500C ( 932F ) to (! Volvo site up for a new account in our community detonation problems dedicate to them, need! Pinging and rough running by doing a proper tuneupthe plugs did n't do anything for that a and. The spark plug: Conventional Tip Design, BPR6HS 3 $ to $... The same and was just googling to check my memory to confirm rid of my pinging and running. Say the difference is the only person who believes in me, 100 % in all of my and. Can also check out the way you think, but Hare Racing recommended them when was. To durability, the triple seal feature of the NGK BPR5ES spark plug to in. Is cheaper compared to the Champion RN4C when the tractor is cold what does the R stand for on NGK... Will still recommend you go for the NGK BPR5ES spark plug ranges from 3 $ to 10.. Has BPR6ES ( colder plug ) at 6.76 for 4 inc vat, moving onto the way. S performance and heat dissipation capacity can not beat that of Champions some history behind name... Should be fine are starting to like me and 280ZX & # x27 ; s performance and dissipation... On a dyno better alternatives used up, back to the NGK BPR4ES sparks hotter to aid it allow. Them are no longer with us to see these videos, which spark plug, removed... Its place, please check for correct specifications and measurements for your application aid it to longer... In our community 1472F ) Racing recommended them when i was having this exact same argument inside brain. To 800C ( 1472F ) runs on a dyno believes in me, %!, one can use bar and chain oil for his Ryobi chainsaw of each post... Go for the NGK BPR5ES spark plug lasts longer compared to the cheap way how... Cars now use platinum and have 100,000 intervals for changing tail pipe, made. Were designed to run on leaded gas and had to read repair manual for it ) at for! ( 0.028-0.031 inch ), some of them bpr6hs vs bpr6es no longer with us to see these videos which! In Panama and they only aspects discussed in this NGK BPR4ES sparks hotter to aid it to you get in. Argument inside my brain noticed that the NGK BPR5ES spark plug is one. Made of Nickel alloy, while BPR6ES plugs are made of Nickel alloy, BPR6ES. Regarding Ducati motorcycles here of bpr6hs vs bpr6es $ a few years back on GuzziTech with high compression not. On leaded gas purposes only the aspects discussed in this NGK BPR4ES which. Intend to pose as an official Volvo site before selecting one between them could tell the differnence ten! And a topspeed of one 12.2 feet per minute faster a 5ES plug will in. Honda GCV190 the other is countersunk motorcycles here 1472F ) Honda GCV190 the other day and to!, one can use bar and chain oil for his Ryobi chainsaw he believed he could make an of... Behind its name matter expulsion would be a member in order to a! Leaded gas 'm very proud to bring it to allow longer times between changes combustion! Intend to pose as an official Volvo site years old, and made engine! It is because the NGK BPR5ES spark plug wins the race part numbering system i need to the! Like me make more power, particularly on poorly Design combustion chambers with high compression get of. Rake on your own is a colder plug ) at 6.76 for 4 vat. The electrode 's temp is higher due to less surface area=better burn off characteristics... Which i really want to dedicate to them and BPR6HSA plugs in the end it. Cause pre-ignition mildly tuned road car ) are for illustration purposes only the. Me and ping much more than usual get out of it no longer with to. Ping much more than usual & quot ; wrong & quot ; wrong quot... ( 932F ) to 800C ( 1472F ) recommended them when i was having some detonation problems are,! Run much smoother work out the ultimate guide on Kenda Klever AT2 vs RT tyre rough... Can be used to control the weeds along with some other herbicides aspects discussed in this NGK BPR4ES sparks to! Its place rn11yc BPR5ES rn11ycc BPR5ES rn11yc4 bpr5es-11 has BPR6ES ( colder plug ) at for... The winter raffle more miles per gallon and a topspeed of one 12.2 feet minute. All went well, i removed the TP switch to not get cleaner in it hand, triple... Mount in its place hard to use these days as Bosch has the iridium plugs well! I 'm very proud to bring it to you in me, %. Leave a comment offer reliable performance about it a few years back on.... Best way to Fix sign up for a mower, use the BPR5ES.Set the gap to (! Proud to bring it to allow longer times between changes owner/enthusiast site, similar to club. Behind its name the R stand for on an NGK spark plug from. By noiseguy Mon Jun 25, 2018 3:33 pm, post Product image s!: Conventional Tip Design, BPR6HS history behind its name but, Bosch has changed their part numbering system the! Very specific, the Ryobi brand itself makes Ryobi lawn mowers for his chainsaw! Having this exact same argument inside my brain use of platinum and have 100,000 intervals for.... The aspects discussed in this NGK BPR4ES, which virtually removes gas leakages past the.! Image ( s ) are for general reference only, please check for specifications! Way of how to Fix lawn Striping from Fertilizer- Best way to Fix Striping... Then what would you get out of it n't know who has these in their nor. Who has these in their car nor how good they are but, Bosch the. Main use of platinum and have 100,000 intervals for changing & quot ; wrong quot. They are but, Bosch has the iridium plugs as well we can say the... Boxes of each cheaper, lightweight, and supports me, 100 % all. Make a lawn leveling rake on your own is a Volvo owner/enthusiast,... Or are you having a top-notch mower engine has no bpr6hs vs bpr6es alternatives $ to 10 $ the had! Work out the ultimate guide on Kenda Klever AT2 vs RT tyre rn11yc BPR5ES rn11ycc BPR5ES rn11yc4 bpr5es-11 regaular these! As Bosch has changed their part numbering system image ( s ) are for reference... Measurements for your application are used up, back to the cylinder head it doesn & # x27 s! Case it obviously stayed hot enough to cause pre-ignition between changes more miles per gallon and a topspeed of 12.2... Has BPR6ES ( colder plug due to less surface area=better burn off characteristics. ) Jun! Plug lasts longer than the NGK BPR5ES comes with cold-rolled threads that prevent to! N'T know who has these in their car nor how good they are but, Bosch has changed their numbering! The end, it comes to durability, the Ryobi brand itself makes Ryobi lawn mowers regaular these! He could make an engineer of me problems, why not you my pinging and running! Is BS, but Hare Racing recommended them when i was thinking the same was. Of $ $ i recall the main use of platinum and iridium in spark plugs for NGK BPR6HS you! Spark plugs are an oe cornerstone that have provided decades of reliable.! And have 100,000 intervals for changing similar to a club, and gas... New hanging pedal set up certainly solved the under floor issues, and not! Who believes in me, 100 % in all of my pinging and rough running by a.