Ok guys so this the response I got below from Brisk. Enjoy as it's a pretty long read
We appreciate you reaching out in regard of our products and getting some valuable answers directly from the source. As we all know in the forum community information can be a bit misleading at times and may not be "complete", there are a lot of variables to account for when making spark plug selections just like any other component for your engines.
Unfortunately, the standard LGS variants like the EOR14LGS design have a very large gap that is not adjustable and for applications that see cylinder pressures such as the stinger platforms it is not a great fit. The LGS plug is rather flexible but the effective gap of the plug ranges from 0.035" - 0.060".. any application requiring a gap lower than 0.035" generally we do not recommend the standard LGS design for.
For naturally aspirated use the standard LGS is a fantastic spark plug and carries an average lifespan of around 45,000 miles for naturally aspirated use and we do offer a variation of the LGS design with a tighter gap specification which is our LGS-T which carries an average lifespan of around 60,000 miles but unfortunately in the thread construction your cylinder head requires we do not offer the LGS-T variant.
What we sell primarily for these applications and applications that have relatively high boost pressures from factory is our Silver Racing design. This is our premier forced induction application spark plug solution, they do utilize a silver center electrode as well and carry an average lifespan in a factory forced induction application of around 20,000 - 25,000 miles. For modified applications the lifespan is subject to be shortened but we still see moderately modified applications seeing 15,000+ out of a set.
The most popular plugs I've seen on the web for the Stinger platforms are the NGK and
HKS plugs, some of the
HKS/NGK racing series plugs that cost $25-$40+ a piece our silver racing is a direct replacement for and have become very high in demand for the european applications such as BMW, Audi and VW turbo engines due to their improvement in performance by allowing for better tuning flexibility and price point ($10.99/each)
Here are some cross references I've gathered for your community, should you have any further questions or concerns, please feel free to shoot me an email or give me a call and I'd be more than happy to help with product selection!
NGK SILZFR7A9G &
HKS M35iL Stock Factory Heat Range Spark Plug:
Brisk ER14YS Silver Racing Projected Insulator Tip
Brisk ER14S Silver Racing Non-Projected Insulator Tip
Brisk EEX14YP Long Lifespan Platinum
NGK 4901 R7437-8 &
HKS M40iL One Heat Range Colder Spark Plug:
Brisk ER12S Silver Racing Non-Projected Insulator Tip
NGK 4654 R7437-9 &
HKS M45iL Two Heat Range Colder Spark Plug:
Brisk ER10S Silver Racing Non-Projected Insulator Tip
We also offer an additional heat range colder than no other manufacturer does for this platform:
Brisk ER08S Silver Racing Non-Projected Insulator Tip
Three Heat Range Colder Spark Plug
After looking at the forum you mentioned there seems to be some misunderstanding by some of the members as well in regard of our Silver Racing plugs - one member stated in regard of the ER12YS plug -
" They say it has a projected tip, which is a nice feature that the OEM NGK's utilise (though it doesn't look like it's a projected tip); but, the rest of the plug looks like garbage. That center electrode and the ground electrode look really bad. It isn't an iridium plug, so it wouldn't last very long at all, and it might take more energy to create a spark. Also, with that HUGE ground electrode you will have tons of shadowing. All 3 popular plugs for our cars already have a factory trimmed ground electrode.
But hey, if you want to try them out go for it - just let us know how it goes."
So let me shed some light - First, the ER12YS plug is a projected insulator tip and that image is very poor it is soon to be replaced with a proper image which will represent the product much better.
Projected insulator tips are primarily beneficial for combating carbon deposit build up on applications that see extended periods of idle time or low duty cycle driving such as stop and go traffic. Aside from that there really is no benefit for performance and racing applications, we recommend non-projected insulator tips for modified turbo applications primarily as you can be more aggressive with the timing curve and often make more power due to the plugs ability to dissipate heat more effectively which combats knock and pre-ignition. It also makes the plug more durable for increased longevity as the ceramic insulator nose isn't subjected to the harsh turbulent environment that a projected insulator tip spark plug is.
All of our plugs come with cut back ground strap electrodes, they are trimmed back for increased spark exposure, our ground straps are wider and beefier which is beneficial for heat dissipation and decreases the chances of the gap opening or closing due to excess heat retention (common issue on turbo cars)
Silver is the best conductor of thermal heat and electricity out of any other metal alloy used in
spark plugs. Copper being number 2 and gold being number 3, Iridium doesn't even make the top 25 on the list in reference to electrical conductivity. This reduces voltage requirements and enables the plug to utilize a larger diameter center electrode while maintaining low ignition requirements which also increases the heat dissipation capability as well which gives silver a wider heat range.
Using a silver center electrode actually reduces the required spark energy required to jump a specified gap, our plugs require less energy to fire than the iridium
spark plugs, iridium is also a very poor material for performance and racing use as it is a very poor conductor of heat and electricity, this is why you see extremely small diameter iridium tips, any larger in diameter and they would not be able to fire the gap effectively. Iridium plugs often lead to pinging and pre-ignition in modified turbo applications due to their poor heat dissipation properties. Our Silver Racing design will allow you to tune more aggressively before seeing spark induced knock than an iridium plug of equivalent heat range.
The quality of our products and materials used is industry leading, we have been producing
spark plugs since 1935, all of our components are manufactured in house on our state of the art assembly and production line from the shells to insulators, etc.., We specialize in performance and racing applications and are the premier forced induction and nitrous plug on the market!
Please feel free to share this with the forum as the more information we can get out there in these communities the better understanding these communities will have in regard of spark plug characteristics and understanding of the function of
spark plugs.
Furthermore - "Huh. Multi-tip designs: E3 has been doing this for a while. They were the darlings when they came out and now generally regarded as snake oil."
E3 plug functions completely different from our LGS design. Our LGS design is a semi-surfcace discharge spark plug, not even comparable. E3 started manufacturing
spark plugs about 7 years ago and outsources all components.
Our LGS design is patented and has been on the market for well over 2 decades now, there isn't even remotely a comparison.
The end.
Guy definitely knows his product... thoughts? Pretty interesting as he doesn't recommend the multispark plug we identified