Quote:
Originally Posted by brucelidat
The article doesn't quote the Nissan guy as saying it would be a turbo 4. He just says lighter and it seems like the writer is interpreting that as a turbo 4. Wouldn't a turbo 3.0 be smaller and lighter than the 3.7 we currently have? I'm still enjoying the 370 so it looks like I'll have at least a few more years of that and even longer if the new one is a disappointment.
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no a turbo 6 cyl would need to be built to withstand the pressures of forced induction which would make it heavier, not to mention heavier parts outside the motor like the manifolds, turbos, downpipes, wastegates, piping, intercoolers, BOV's, etc. keep in mind that differences in displacement doesn't translate directly to differences in weight. an older 3.0L VQ would weigh roughly the same if you punched it out to 4.0L. it might gain a few lbs from heavier pistons and crank but the block would stay roughly the same. the liters does not correspond to the physical size of the motor with the exception of taller deck height needed with larger displacements