Quote:
Originally Posted by mrjonesg20
"Quote from G20Beam" Let's clear this up once and for all. My source is automobile-catalog, pretty sure they are 99% accurate.
Just look at the screenshot below. I learned that apparently the G20 330i in both EU and US/NA both have the B46B20. For sake of extra comparison to authenticate the info and to make sure it isn't a mistake, the G20 320i has the B48B20. This is very interesting, it means there isn't a difference between EU and NA cars in the latest generation of G20 330i's. However, it's interesting to note that the US spec G20 weighs more than the EU spec G20. This may be due to the SULEV parts. I have made a mistake and that is relying on Wikipedia. On Wikipedia, the data suggests that the B46B20 has the same 11:1 compression ratio, but it has a 10.2:1 compression ratio. The new B58B30 in the M340i also has the same 10.2:1 compression ratio. The cylinder bore and stroke is also identical in both B46B20 and B58B30.
It is also important to note that the G20's B48B20 is different from the F30's B48B20. The G20's engine is revised, and the outputs as well as compression ratios are completely different. I assume the stats that some of you and I have found, are all incorrect. Those stats are correct for the F30's B48B20 but not for the G20. Please refer to attachments for reference.
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I don't think automobile-catalog is 99% accurate.
I found this analogy:
B48B20A = B48C (320iX and since 06/2019 320i)
B48B20B = B48D (320i until 06/2019, 330i and 330iX in EU)
B46B20B = B46B (330i and 330iX in NA and until 09/2018 also in EU)
I trust realoem and bimmercat more.