It’s hardly a let down, sure it may not be as good as a B58, because it is essentially a B58 with 2 cylinders cut off, so it isn’t as powerful.
The B48 is a brilliant engine, very reliable and durable and has been proven to be a good tuning platform in recent times. There was one person who achieved over 450whp on the stock B48 internals (G20 330i), he reckons it can go up to 550-600whp, so it’s easily as strong as an SR20DET, 4G63 or an EA888 in terms of strength.
It’s hardly a let down, sure it may not be as good as a B58, because it is essentially a B58 with 2 cylinders cut off, so it isn’t as powerful.
The B48 is a brilliant engine, very reliable and durable and has been proven to be a good tuning platform in recent times. There was one person who achieved over 450whp on the stock B48 internals (G20 330i), he reckons it can go up to 550-600whp, so it’s easily as strong as an SR20DET, 4G63 or an EA888 in terms of strength.
https://www.youtube.com/watch?v=cXtGi5yjnOs