Quote:
Originally Posted by g20beam
B46D. But yes, you’re correct. Theoretically because the B46D is basically B58 with 2 less cylinders, it should be reliable as long as you’re running 91/93 Octane with any Stage 1 or 2 tunes.
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The information on my car shows a B48D / B48B20O1, not sure where the B
46D is coming from at your end? Edit: I see that the 6 or 8 is depending on NA or outside of NA as you stated for the SULEV. See image below. I am obviously outside of NA hence the 8.
Also, don't understand the logic here. B58 is running 382 HP and 369 TQ, so 2 litres / 3 litres or 4 cyl / 6 cyl X 382 and 369 = 255 HP and 246 TQ. HP is almost bang-on and we are actually quite lucky to have 295 TQ based on our engine being down 1 litre and 2 cylinders on the B58. This engine is being pushed pretty hard right from factory so not sure how much room it has in a hot climate running 95 RON / 91 API octane, my guess is not much room at all safely.