Originally Posted By: kschachn
Plus it makes it far more complex and expensive. That's the other reason BMW does it.
That's the real reason they do a lot of what they do. Some German engineer sits down, surveys the situation and asks himself - "how can I make this as complex as possible?"
Then after they have outlined the basic system they all work together to make the fasteners and brackets as confusing as possible, always working in the most non-intuitive fashion.
Originally Posted By: hattaresguy
That's why BMW uses a couple smaller turbos vs a single larger one. They make the motor run more like a NA one.
I'd swer you were talking about a GM product. Have you ever actually turned a wrench on a BMW? They're a dream to work on compared to GM cars of the same vintage.
And it's nice more and more turbo's are coming into the market. One of the only ways to have >100% VE. Turbo's of today are not like those of yester-year. problem though, is the idiotic general public thinks turbo's are SUPPOSED to have lag, and want/expect that 'hit' when a big, laggy turbo comes on. I've been iin and driven a few vehicles with aftermarket turbo kits, and when designed correctly, there's 0 reason you should have lag. TRM Stage 1 kit for an E36 3 series - full boost (12 psi) by 2500 rpm's. Virtually no lag whatsoever, extremely smooth power delivery, ~325 whp on an otherwise bone stock engine, and will easily last 50-100k miles like that (the development car saw ~40k miles of mostly track use, never came apart - on a ~200k junkyard motor). Tailpipe emissions are cleaner than they were from the factory, and gets better fuel mileage than a stock 325. I really wish the manufacturers wuold stop building for the stupid public, and build GOOD cars.
Plus it makes it far more complex and expensive. That's the other reason BMW does it.
That's the real reason they do a lot of what they do. Some German engineer sits down, surveys the situation and asks himself - "how can I make this as complex as possible?"
Then after they have outlined the basic system they all work together to make the fasteners and brackets as confusing as possible, always working in the most non-intuitive fashion.
Originally Posted By: hattaresguy
That's why BMW uses a couple smaller turbos vs a single larger one. They make the motor run more like a NA one.
I'd swer you were talking about a GM product. Have you ever actually turned a wrench on a BMW? They're a dream to work on compared to GM cars of the same vintage.
And it's nice more and more turbo's are coming into the market. One of the only ways to have >100% VE. Turbo's of today are not like those of yester-year. problem though, is the idiotic general public thinks turbo's are SUPPOSED to have lag, and want/expect that 'hit' when a big, laggy turbo comes on. I've been iin and driven a few vehicles with aftermarket turbo kits, and when designed correctly, there's 0 reason you should have lag. TRM Stage 1 kit for an E36 3 series - full boost (12 psi) by 2500 rpm's. Virtually no lag whatsoever, extremely smooth power delivery, ~325 whp on an otherwise bone stock engine, and will easily last 50-100k miles like that (the development car saw ~40k miles of mostly track use, never came apart - on a ~200k junkyard motor). Tailpipe emissions are cleaner than they were from the factory, and gets better fuel mileage than a stock 325. I really wish the manufacturers wuold stop building for the stupid public, and build GOOD cars.
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