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Old 12-27-2012, 09:00 AM
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SD Z4MR SD Z4MR is offline
(formerly SD 335is)
Location: San Diego, CA
 
Join Date: Jan 2011
Posts: 4,225
Mein Auto: '06 Z4 MR | '11 335is E92
Quote:
Originally Posted by CALWATERBOY View Post
In truth, they are the same engine. One has valvetronic [328i] and the other turbos [335i].

Apples and oranges are, in the final analysis, both fruit.
Don't be mislead by this completely erroneous statement. They are emphatically not the same engine, in fact they start with completely different engine blocks, and this analogy of apples and oranges both being fruit is just plain misleading.

The engine in the E9x 328i is the N52 engine. The engine in the E9x 335i is the N54 engine through 2011 and the N55 engine from 2012-2013. BMW didn't just take the N52 and slap a couple of turbos on it and call it the N54 or slap a twin-scroll turbocharger on it and call it the N55. Click on the links for Wikipedia articles on each engine. Also see this thread comparing the two engines. Although virtually identical in spec, the N54 and the N55 are not even the same engine, although both use turbo technology.

With CALWATERBOY you have to learn to take almost everything he says with a grain of salt.
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