R10 2952 Posted December 8, 2009 Share #1 Posted December 8, 2009 I was wondering: do all currently-running RTS buses have the same or similar engines? Because earlier today, I happened to see a RTS on the B38 route on the corner of DeKalb Avenue and Ashland Place, and its engine sounded different from the rest of the RTS buses, at least to me. Compared to the standard RTS engine, it had a lower pitch, and was not as loud. It sounded more like the engine of an old school bus, a dump truck, or a garbage truck than like the standard engine of an RTS. I can't remember the exact number, but it was of the 91xx series. Can anyone explain? Perhaps this is a different engine than the rest? Or maybe something was wrong with the engine, and caused it to sound different?:confused: Link to comment Share on other sites More sharing options...
SevenEleven Posted December 8, 2009 Share #2 Posted December 8, 2009 The 1996 RTS order that contains buses 9140, 9142-9149 have Cummings engines instead of the Detroit engines that we are usually the norm around the city. Link to comment Share on other sites More sharing options...
via White Plains Road Posted December 8, 2009 Share #3 Posted December 8, 2009 I was wondering: do all currently-running RTS buses have the same or similar engines? Because earlier today, I happened to see a RTS on the B38 route on the corner of DeKalb Avenue and Ashland Place, and its engine sounded different from the rest of the RTS buses, at least to me. Compared to the standard RTS engine, it had a lower pitch, and was not as loud. It sounded more like the engine of an old school bus, a dump truck, or a garbage truck than like the standard engine of an RTS. I can't remember the exact number, but it was of the 91xx series. Can anyone explain? Perhaps this is a different engine than the rest? Or maybe something was wrong with the engine, and caused it to sound different?:confused: That NovaBus RTS you're reffering to has a Cummins M-11E CELECT engine (#9140, 9143-9144, 9146-9149). The rest of the NovaBus RTS's have Detroit Diesel Series 50 DDEC! Link to comment Share on other sites More sharing options...
R10 2952 Posted December 8, 2009 Author Share #4 Posted December 8, 2009 The 1996 RTS order that contains buses 9140, 9142-9149 have Cummings engines instead of the Detroit engines that we are usually the norm around the city. That NovaBus RTS you're reffering to has a Cummins M-11E CELECT engine (#9140, 9143-9144, 9146-9149). The rest of the NovaBus RTS's have Detroit Diesel Series 50 DDEC! Thanks for the info. But how exactly is the Cummings engine different from the standard engine?:confused: Link to comment Share on other sites More sharing options...
Cait Sith Posted December 8, 2009 Share #5 Posted December 8, 2009 Thanks for the info. But how exactly is the Cummings engine different from the standard engine?:confused: The Cummins M11E on those RTSs were not EPA approved. There are significant differences with Cummins engines & Detroit Diesel engines as in how clean one can be, sound, and other aspects Link to comment Share on other sites More sharing options...
SoSpectacular Posted December 8, 2009 Share #6 Posted December 8, 2009 Let me explain! Through video! These buses are out of the Fresh Pond Depot, those Cummins M11Es are standard diesel-powered engines of course, these just wound up that way! 9140, 9143, 9144, 9146, 9147, 9148 and 9149 all have these engines. 9141 was repowered to a Detroit Diesel Series 50 like the rest and 9142 and 9145 wound up recently scrapped. They do however, utilize the very same Allison V-731 transmissions. Link to comment Share on other sites More sharing options...
R10 2952 Posted December 8, 2009 Author Share #7 Posted December 8, 2009 Let me explain! Through video! These buses are out of the Fresh Pond Depot, those Cummins M11Es are standard diesel-powered engines of course, these just wound up that way! 9140, 9143, 9144, 9146, 9147, 9148 and 9149 all have these engines. 9141 was repowered to a Detroit Diesel Series 50 like the rest and 9142 and 9145 wound up recently scrapped. They do however, utilize the very same Allison V-731 transmissions. Thanks. Now I can see the difference. Link to comment Share on other sites More sharing options...
SoSpectacular Posted December 8, 2009 Share #8 Posted December 8, 2009 You're welcome man! I love hunting down the rarest of buses! Link to comment Share on other sites More sharing options...
R10 2952 Posted December 8, 2009 Author Share #9 Posted December 8, 2009 I love hunting down the rarest of buses! So do I, haha! Link to comment Share on other sites More sharing options...
SoSpectacular Posted December 8, 2009 Share #10 Posted December 8, 2009 Then those Cummins M11E Novas would be the perfect target for you as well as the ZF Ecomat HP592C transmission-equipped Novas! Link to comment Share on other sites More sharing options...
Eric B Posted December 8, 2009 Share #11 Posted December 8, 2009 Another difference is that the Series 50 is 4 cylinder, while the Cummins is 6 cylinder. Hence, the Cummins somewhat evokes the old 6V71 fishbowl sound, while the Series 50 would sound faintly closer to an 8V71. Link to comment Share on other sites More sharing options...
S78 via Hylan Posted December 8, 2009 Share #12 Posted December 8, 2009 I happen to see them on the B26 and B38 a lot. Link to comment Share on other sites More sharing options...
Novabus 5000 Posted December 8, 2009 Share #13 Posted December 8, 2009 Let me explain! Through video! These buses are out of the Fresh Pond Depot, those Cummins M11Es are standard diesel-powered engines of course, these just wound up that way! 9140, 9143, 9144, 9146, 9147, 9148 and 9149 all have these engines. 9141 was repowered to a Detroit Diesel Series 50 like the rest and 9142 and 9145 wound up recently scrapped. They do however, utilize the very same Allison V-731 transmissions. How did those two units get scrapped? Link to comment Share on other sites More sharing options...
Grand Concourse Posted December 8, 2009 Share #14 Posted December 8, 2009 You're welcome man! I love hunting down the rarest of buses! I've been lucky in finding a different kind of rare: spotted the orange LED RTS buses on the B6 [2 of them back to back on the same line] and the orange LED C40LF 915 on the B9. Link to comment Share on other sites More sharing options...
NX Express Posted December 8, 2009 Share #15 Posted December 8, 2009 Although not that often, I saw the same one (5107) on the B1 and B74. Link to comment Share on other sites More sharing options...
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