Скачать с ютуб The new 1254cc BMW Boxer engine with ShiftCam Tech Larger new engine for R 1250 GS and R 1250 RT в хорошем качестве

The new 1254cc BMW Boxer engine with ShiftCam Tech Larger new engine for R 1250 GS and R 1250 RT

BMW’s venerable Boxer engine enters yet another generation for model year 2019 with the advent of the R 1250 GS and R 1250 RT. While the Boxer went to four-valves over 25-years ago (1992), it was not until it moved to double overhead cams a decade ago (2009) that it started to really win me over. Three years later, 2012, and the boost to the current 125hp, thanks to the move to water-cooling, the engine really came alive. Now for 2019 the engine gains more capacity, growing from 1170cc to 1254cc, via both a longer stroke and an enlarged bore, and gains 9 per cent more power along with 14 per cent more torque. The new 1250 Boxer produces, according to BMW, 136 hp (100 kW) at 7750 rpm, and 143 Nm of torque at 6250 rpm. The outgoing model’s numbers were 125 hp and 125 Nm. While there are improvements from idle all the way through to redline, from the accompanying dyno chart it appears that the greatest gains are made from 5000 rpm up. There is at least 110 Nm of torque available right from as low as 2000 rpm, and over 120 Nm from 3500 rpm. The other big news is the move to what BMW are calling ‘Shiftcam Technology. This is, essentially, variable valve timing of the inlet cam. The inlet cam has two sets of lobes, one set with shallow lift and modest duration, for great torque, reduced emissions and improved economy. While the second set of lobes are of a much more wild duration and lift, which promises a bit of a Jekyll and Hyde character to the new Boxer. Engine idle speed is also lowered by 100rpm thanks to the Dr Jekyll set of cam lobes while fuel economy in some parts of the rev range is up to four per cent better than before. More here - http://www.mcnews.com.au/1250-bmw-box...