Jordan Adam
Established Member
Do keep in mind though that Cummins L9 is only just over a litre larger yet the L9 can summon 380hp/1700nm for buses, internal engine components and durability should be forseen by all manufacturer so that they can cope with the work or power they have to develop for where there intended to be used on whether that be city or motorway ops, as I recall as I learned from yourself that Volvos D9Bs whilst being up to the job had injector problems, I would like to hope volvo put that experience of problems to work, then again that was technically a renault engine.
The D8K 250hp/1050nm could likely be fitted as Wrights are apparently able to fit a Daimler OM936 to there own product whilst still maintaining there micro-hybrid warfare etc
The same could be said for Plaxtons usage of Volvos D11K for there 14m coaches, Stageys new Panoramas are volvos B11RLE chassis , I would assume they are up to the job, particularly as the iShift trans will keep revs low on the motorway
The Cummins ISL is 8900cc which is a decent size bigger also it can produce up to 1996NM (as in our E500s), that engine in general is a really good unit. The D9B unit was indeed up to the job at a driving point of view, but is probably the 2nd most unreliable engine in a Volvo vehicle to date, beaten only by the D5K.
I do think the D8K will be fine in these, It's just if i was the head at Volvo i'd have put something a tad bit bigger in.
The D11K with I-shift do suffer reliability issues, in the winter the Interdecks are constantly in "limp mode", but they're not too bad when compared to the likes of the D9B! The D11K + ZF Ecolife in the 12M Elites on the 10 (Aberdeen - Inverness) are far superior in almost every aspect, even at high speeds the RPM is low.