Last month, i was introduced a sales person from Brisk by a friend. He had show me some of their products and i'm deeply interested in one of it. The
Brisk Racing Premium Silver Plug which they work out the design with Lamborghini. So I ask the sales person to give me a discounted sample set to try out on my Bro's Toyota SE Blacktop 4AGE-20V.
It arrive shortly and we had installed the spark plug and let it run for a few weeks and it's almost a month now. Which we had felt a slight increase of torque at lower to mid RPM range. But not much increase in higher RPM range.
Yet, this is not the main point which i had ordered the sparks plug. 4AGE-20V was an old engine engineered about 20 years ago. And it's primitive ignition system with the 12.0+- compression makes it unsuitable to run on any gas lower than Ron 97. Which is bloody expensive by now.
As the Silver sparks plug had a lower internal resistance and a higher heat dissipation characteristic. We were able to run the engine @ a lower ignition timing and significantly reduces the knocking conditions when we run on Ron95 fuel.
So far so good, and bro was happy with the fact that he now running on ~ 19cent/km compare to 28/km one months ago.