Quote:
Originally Posted by biz77
Understood. MAP is the main factor in determining load. If we look at manifold pressure on an N54 at a given RPM and IAT at sea level and then at 5,000 ft. ASL, with the same IAT and RPM, we should see almost identical manifold pressure and therefore load, no?
|
I believe so.
Quote:
Originally Posted by roninsoldier83
While the DME is setup to attempt to make the same calculated torque regardless of conditions, I can attest that it is unable to make the same torque/peak power numbers at high elevations as it does at sea level.
I say that because I've seen several 335's at a local drag strip (Bandimere Speedway), which has an elevation of about ~5800 ft. The average trap speed for a stock 335 up here seems to be around the 95mph mark, which is a far cry from the 100-105mpg trap speeds most people seem to be pulling at sea level. 91 octane piss water and uber-thin air FTL  |
I dont doubt that at all. I was just reiterating the fact of what BMW wanted the car to do in theory. In practice it comes up short.