NGK BKR7EIX Iridium IX Spark Plug

Product Information

Seems to me warren you are settling on about the recommended plug gap used by everyone in the 1960's onwards ie. .025" ( actually .0265) ish. All plugs were gapped at 25thou from mowers to race bikes, it was a std Champion gap and most feeler gauge sets had a plug gaping 25 thou blade as their largest blade. Of course then you had another factor which was the dwell angle as well ie the points gap. the wider the gap the longer the points stayed open and the more time the coil had to recharge. Anyway...I am sure anyone under 40 is getting bored now Each and every spark plug manufactured by NGK is designed to meet the most rigorous standards, ensuring there ability to deliver reliability and consistent performance under all conditions. Each plug plays a major role in helping improve performance, fuel economy and the overall optimum efficiency helping to make a significant contribution in the reduction of emissions.

However there are a few countries we do not ship to, some of these include: Thailand, Malaysia, Indonesia, Russia, Nigeria, Macedonia, Syria, Ukraine, Lebanon. Why is postage on bulky items to some countries expensive compared to some other companies ? However, whilst I believe this may be the case for the 'old skool' turbo charging systems the TFSi system is a very different animal, and the way they system obviously mixes its fuel into the chamber means that maybe the heat issues may not be so prevolent. Bosch platinum single electrode - OEM plug supplied from factory (In for 11k on Revo Stg1 - removed due to stutter at 5,000rpm) We ship worldwide. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.NGK Iridium 7 (BKR7EIX) - One steps colder (In car for 6k on Revo Stage 2, changed for 2+, no issues other than electrode discolouration causing concern) I think the thing I've noticed since running the 8P2 for 60k (40k at S2 or above) is the condition the plugs were in, and it's not that the plug is damaged in any way, it's the heavy sooting that to me says I'm sure something in the set up is not right, and having tried temperature settings 6 / 7 / 8 it only got worse with colder plugs. Stage 2+ adds 38% more BHP with the additional fuelling, extra air in and out, and to be honest on reflection I feel like a bit of a **** that I didn't think to investigate changing the plug gapping earlier given the way the car was eating plugs (plugs that could be salvaged to run a bit further with a gentle clean up). In my bike racing days we used to use gunsons colour tune which was essentially a glass spark plug which meant you could see the colour of the spark with the engine running and adjust mixture to fine tune a nice blue flame, it didnt take much to turn a yellow flame blue. these days you could not adjust mixture so you just have to rely on the manufacturers or tuners map to get it right. The NGK Iridium IX Spark Plugs utilise a 0.6mm laser welded fine iridium tip which ensures high durability and a consistently stable spark along with a tapered ground electrode which minimizes electrical quenching effect. The longer insulator nose prevents fouling, the corrugated ribs on the insulator prevent flashover and a triple gasket seal eliminates combustion gas leakage.

NGK Iridium 6 (BKR6EIX) - Recommended OEM temperature grade (in car for 15k on Revo Stg 1 - no issues, removed for stage 2)My point is that a coil in those days would charge to about 20,000v before discharge and one of the advantages of electronic ignition was the much higher ignition coil voltage which meant you could run much wider plug gaps. The reason for this was the low gap and the high voltage meant that the point at which the spark became a flame was lower ie: lower revs. at 10000rpm a plug needs to put out a individual defined spark about 42 times per second and the smaller the gap the more likely the spark becomes a flame. Things are better today because in days gone by and engine would have 2 sets of points for 4 cylinders so the plugs would fire twice a rev once at BDC and once at TDC near enough so the plugs were firing at 80 times per second. Designed specifically for the performance enthusiast Iridium IX offers extreme ignitability, improved throttle response and superior anti fouling. So for all those who've spent the last few weeks championing that this is a Revo specific issue...... now maybe the time to reflect and realise your trusty Audi and it's lean burn lump ain't quite as complete a product as you once thought as if it can happen with an MTM map...... Nothing is as clear cut as you may think when it comes to engines and tuning. However there are a few countries we do not ship to, some of these include: Israel, Thailand, Malaysia, Indonesia, Russia, Nigeria, Macedonia, Syria, Ukraine, Lebanon. We have a 14-day return policy, which means you have 14 days after receiving your item to request a return.