race 2 Posted December 15, 2016 Report Share Posted December 15, 2016 Hello , which are the best spark plugs to use on the V6 exige? réf ?? Quote Link to post Share on other sites
Gold FFM C8RKH 6,255 Posted December 15, 2016 Gold FFM Report Share Posted December 15, 2016 OEM from DENSO - go to Elise-Parts where they are around 1/3 of the price that Lotus will charge you (circa Euro 105 for 6). 1 Quote Alcohol. Sex. Tobacco. Drugs. Chocolate. Meh! NOTHING in this world is as addictive as an Evora +0. It's not for babies! The first guy to ride a bull for fun, was a true hero. The second man to follow him was truly nuts! Link to post Share on other sites
Jack 546 Posted December 15, 2016 Report Share Posted December 15, 2016 Anybody know the Denso part# for the plugs? Quote Jack2008 2-Eleven2015 Exige V6 CupR Track videos ... http://www.youtube.com/jackcup2010 Lotus Challenge Series ULTRA Class champion2012 Lotus CUP USA OPEN Class champion Link to post Share on other sites
MartynB 244 Posted December 15, 2016 Report Share Posted December 15, 2016 Couldn't find any Denso plugs on Elise-Parts, or anything for the supercharged V6 in fact. I wonder if @C8RKH was thinking of Elise-Shop, they have a set for the NA Evora, which are Denso Iridiums (probably the FK20HR11 (gap 1.0-1.1mm), but it doesn't say) However, Lotus don't recommend those for the supercharged 2GR-FE, instead they specify the NGK ILFR7B8 (with a gap of 0.8mm) Odd thing is, I can't find that NGK part number, only ILKR7B8. I do wonder if Lotus have made a typo in their tech manual and that has then been copied far and wide. Ah the internet Quote Link to post Share on other sites
Stuart Monument 787 Posted December 16, 2016 Report Share Posted December 16, 2016 Although the customer service and systems are terrible, Euro car parts often have a third off of if you can find out what the correct plugs are. Quote Link to post Share on other sites
RedViper 84 Posted December 16, 2016 Report Share Posted December 16, 2016 some for sale on the playground at min https://classifieds.the playground.org/ad-category/parts/car_parts_sales/page/3/ Quote Link to post Share on other sites
Jack 546 Posted December 16, 2016 Report Share Posted December 16, 2016 18 hours ago, MartynB said: Odd thing is, I can't find that NGK part number, only ILKR7B8. I do wonder if Lotus have made a typo in their tech manual and that has then been copied far and wide. Ah the internet @MartynB--that's been my problem as well, as I'd like to get an extra set of plugs in hand. I did find this (finally) searching for ILFR7B8...... http://japansparkplugs.com/boutique/en/denso/65-6x-vkh22.html And, I found this cross-reference to Denso VKH22 ..... https://partinfo.org/ngk-ilfr7b8/ 1 Quote Jack2008 2-Eleven2015 Exige V6 CupR Track videos ... http://www.youtube.com/jackcup2010 Lotus Challenge Series ULTRA Class champion2012 Lotus CUP USA OPEN Class champion Link to post Share on other sites
MartynB 244 Posted December 16, 2016 Report Share Posted December 16, 2016 Good work @Jack I wonder why it's so difficult to find the NGK parts. Looks like my typo hunch was wrong though, which is a relief. Quote Link to post Share on other sites
race 2 Posted December 28, 2016 Author Report Share Posted December 28, 2016 someone have find where to buy the NGK ?? Quote Link to post Share on other sites
Seriouslylotus 445 Posted January 4, 2017 Report Share Posted January 4, 2017 On 16/12/2016 at 16:54, MartynB said: Good work @Jack I wonder why it's so difficult to find the NGK parts. Looks like my typo hunch was wrong though, which is a relief. Not used in any vehicle here in the UK apart from Lotus V6. Also used in the American Mitsubishi outlander 3.0. Took a plug out of my V6 over the week end and its fitted with NGK's. So I ordered a few sets of NGK plugs from America and they will be going onto the website later Quote Link to post Share on other sites
Seriouslylotus 445 Posted January 4, 2017 Report Share Posted January 4, 2017 no no no no no Info is not correct....... Plugs not the same as the Mitsubishi!!!! Part number from the Lotus plug is NGK ILFR7B8 The mitsi plugs are ngk ilkt7b8, they do not fit.... why are things never easy???? Quote Link to post Share on other sites
RedViper 84 Posted January 4, 2017 Report Share Posted January 4, 2017 2 hours ago, Seriouslylotus said: Not used in any vehicle here in the UK apart from Lotus V6. Also used in the American Mitsubishi outlander 3.0. Took a plug out of my V6 over the week end and its fitted with NGK's. So I ordered a few sets of NGK plugs from America and they will be going onto the website later Hi Dave Are you planning on changing your plugs when they arrive? Is there any benefit doing them ahead of lotus recommended 36k / 4 years? Regards Chris Quote Link to post Share on other sites
Jack 546 Posted January 4, 2017 Report Share Posted January 4, 2017 @Seriouslylotus --- Good job, Dave! Taking care of your UK customers. Which specific NGK plug # did you order? EDIT: just saw your f/u post re fitment … sorry to hear that. @MartynB --- Martyn, one of our (US) Lotus vendors is offering the NGK # LFR7AIX as the proper plug for the s/c model …. heat range 7, pre-gapped at .032"/ .8mm If correct, that particular NGK plug looks to be readily available. Quote Jack2008 2-Eleven2015 Exige V6 CupR Track videos ... http://www.youtube.com/jackcup2010 Lotus Challenge Series ULTRA Class champion2012 Lotus CUP USA OPEN Class champion Link to post Share on other sites
Jack 546 Posted January 4, 2017 Report Share Posted January 4, 2017 OK, these last few posts got me back on the hunt for spark plugs again. Found these: ILKR7B8 and LFR7AIX, both appear to be the same (correct) heat range, gap and size as the stock plugs Lotus specifies (ILFR7B8). Price point is quite different between the two. The first is the NGK "Laser Iridium" series and the second is the Iridium IX series. The explanation of the difference between the Laser Iridium (OEM) and the Iridium IX plugs is ….. from the NGK site: THE DIFFERENCE BETWEEN OE IRIDIUM AND IRIDIUM IX NGK builds two types of iridium spark plugs: OE Iridium and Iridium IX®. Every plug in the Laser Series was designed for an OEM application. All dual precious metal plugs are designed to provide maximum longevity. For the OE Iridium series, dual precious metal means iridium on the center tip and platinum on the ground electrode. Some of these plugs have special resistors or multiple ground electrodes, depending on the original equipment requirements. The Iridium IX® spark plugs are a single precious metal aftermarket performance plug. They are a great option for modified engines, and where recommended, are appropriate replacements for OEM spark plugs. Iridium IX® plugs are an excellent upgrade from standard nickel plugs. The Iridium IX® plugs are offered in various heat ranges and sizes to fit most automotive and non-automotive applications. These two plugs perform similarly, due to their fine-wire tip design, but the service interval is different; the Laser Series are typically designed to last 80 to 100 thousand miles, where as the Iridium IX® spark plugs are designed to last 40 to 50 thousand mile Quote Jack2008 2-Eleven2015 Exige V6 CupR Track videos ... http://www.youtube.com/jackcup2010 Lotus Challenge Series ULTRA Class champion2012 Lotus CUP USA OPEN Class champion Link to post Share on other sites
MartynB 244 Posted January 4, 2017 Report Share Posted January 4, 2017 The other thing that bothers me is that the OEM is "special design B" while the IX plug is "special design A". So, not knowing what either actually mean I'd be hesitant to swap out. ILK won't fit because the K means 12mm thread rather than the F being 14mm. https://www.ngk.de/fileadmin/Dokumente/EN/downloads_not_used_in_download_area/ngk_zuendkerzen_code_en.pdf Quote Link to post Share on other sites
Jack 546 Posted January 4, 2017 Report Share Posted January 4, 2017 Martyn, yes, you are obviously correct … my bad. I think the LFR7AIX will indeed work. Equivalences :- NGK PLFR7A-9 / PLFR7A-11 / LFR7B / LFR7AIX / ILFR7H- DENSO K22PRH-U11 / IKH22 Quote Jack2008 2-Eleven2015 Exige V6 CupR Track videos ... http://www.youtube.com/jackcup2010 Lotus Challenge Series ULTRA Class champion2012 Lotus CUP USA OPEN Class champion Link to post Share on other sites
Seriouslylotus 445 Posted January 4, 2017 Report Share Posted January 4, 2017 2 hours ago, RedViper said: Hi Dave Are you planning on changing your plugs when they arrive? Is there any benefit doing them ahead of lotus recommended 36k / 4 years? Regards Chris No plans to change mine they are only 2000 miles old. However the Evora S is what 5 years old now and the first V6 exiges are now 3.5 years old. I suspect there will be a few people asking for them, so I've started to look for these to put into stock Quote Link to post Share on other sites
RedViper 84 Posted January 4, 2017 Report Share Posted January 4, 2017 5 minutes ago, Seriouslylotus said: No plans to change mine they are only 2000 miles old. However the Evora S is what 5 years old now and the first V6 exiges are now 3.5 years old. I suspect there will be a few people asking for them, so I've started to look for these to put into stock Thanks Dave. My car is coming up 3 so il wait until it's 4 Quote Link to post Share on other sites
Popular Post Seriouslylotus 445 Posted January 5, 2017 Popular Post Report Share Posted January 5, 2017 After much digging around I think I understand the spark plug story with the V6 SC. The plug used is an NGK ILFR7B8 This is a plug that is specific to lotus. Currently unavailable on the after market and therefore lotus only. There is an NGK that can be used, is almost identical (very slightly higher spec) but comes with a 0.6 gap. Gapping these plugs is not like doing the old normal plug as it's very easy to damage the electrode. I will order a set and see what gapping is like 3 Quote Link to post Share on other sites
MartynB 244 Posted January 5, 2017 Report Share Posted January 5, 2017 Sounds like a plan Dave. Gap them with a proper "coin" tool rather than a screwdriver and I'd say you're in business. I'm intrigued as to the plug as all I could find was a 6 rated plug for the Impreza Quote Link to post Share on other sites
Seriouslylotus 445 Posted January 5, 2017 Report Share Posted January 5, 2017 (edited) 27 minutes ago, MartynB said: Sounds like a plan Dave. Gap them with a proper "coin" tool rather than a screwdriver and I'd say you're in business. I'm intrigued as to the plug as all I could find was a 6 rated plug for the Impreza You will find it eventually.....so here you are, I just hope giving info away freely doesn't affect sales?????? I spoke to NGK technical who where brilliant. They said use a ILFR7H, same plug with better spec iridium section apparently and a 0.6 gap Tool like this?? Edited January 5, 2017 by Seriouslylotus 1 Quote Link to post Share on other sites
Jack 546 Posted January 5, 2017 Report Share Posted January 5, 2017 13 minutes ago, Seriouslylotus said: You will find it eventually.....so here you are, I just hope giving info away freely doesn't affect sales?????? I spoke to NGK technical who where brilliant. They said use a ILFR7H, same plug with better spec iridium section apparently and a 0.6 gap Tool like this?? Thanks, Dave -- Interesting info. The cross-reference info listed the ILFR7H plug as a substitute for the factory ILFR7B8 plug, so I would have just assumed the pre-set gap was the same as the factory plug or the Iridum IX LFR7AIX plug, both pre-set at .8mm. Equivalences for ilfr7b8: - NGK PLFR7A-9 / PLFR7A-11 / LFR7B / LFR7AIX / ILFR7H - DENSO K22PRH-U11 / IKH22 Quote Jack2008 2-Eleven2015 Exige V6 CupR Track videos ... http://www.youtube.com/jackcup2010 Lotus Challenge Series ULTRA Class champion2012 Lotus CUP USA OPEN Class champion Link to post Share on other sites
Seriouslylotus 445 Posted January 5, 2017 Report Share Posted January 5, 2017 2 hours ago, Jack said: Thanks, Dave -- Interesting info. The cross-reference info listed the ILFR7H plug as a substitute for the factory ILFR7B8 plug, so I would have just assumed the pre-set gap was the same as the factory plug or the Iridum IX LFR7AIX plug, both pre-set at .8mm. Equivalences for ilfr7b8: - NGK PLFR7A-9 / PLFR7A-11 / LFR7B / LFR7AIX / ILFR7H - DENSO K22PRH-U11 / IKH22 Where did you find the cross reference info. Can't find the lotus spec plug in any lists Quote Link to post Share on other sites
race 2 Posted January 5, 2017 Author Report Share Posted January 5, 2017 the lotus part said ngk ilfr7b8 for supercharged and denso k22 for atmo 280 impossible to find this reference(ngk ilfr7b8 ) to do a spare set buy one set new only on ebay enter the lotus reference to find it regards Quote Link to post Share on other sites
Jack 546 Posted January 5, 2017 Report Share Posted January 5, 2017 1 hour ago, Seriouslylotus said: Where did you find the cross reference info. Can't find the lotus spec plug in any lists @Seriouslylotus -- Dave, found it here when trying to go between Denso and NGK …… https://partinfo.org/ngk-ilfr7b8/ Then I looked for the Denso equivalents and found the Japan Plugs site …… http://japansparkplugs.com/boutique/en/denso/65-6x-vkh22.ht Obviously, only some of the Denso VKH22 equivalents have the identical spec to the NGK "Laser Iridium" series plug Lotus is using in the super-charged V6 engines. Quote Jack2008 2-Eleven2015 Exige V6 CupR Track videos ... http://www.youtube.com/jackcup2010 Lotus Challenge Series ULTRA Class champion2012 Lotus CUP USA OPEN Class champion Link to post Share on other sites
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.