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Post by rmz19 on Oct 13, 2016 0:42:58 GMT
Wondering if ADL or Cummins have been at the Euro 5 E40Hs with their laptops? I regularly use the 436 and the EHs are significantly more prone to hit high engine revs than other E40Hs of the same generation. They accelerate in the same aggressive manner as the original 58-60 plate E40Hs. EH14 for example - youtu.be/qtPtlFWxdysI think that driver was probably enjoying himself with that bus and liked overtaking. The short clip demonstrates the quick rev up when accelerating, even more so when braking, as it does for an extended period 35 seconds in. Surprisingly it has time to reach almost full revs even if the brake is applied as low as 10mph, as shown right at the end. It's not the only one like it - quite a few at NX are the same. Any others in London like this? I've also noticed GAL 61 reg E40Hs are somewhat different to identical ones of different operators regarding their engine behaviour, they tend to behave more erratically for some reason. As you mention, this is evident on some by random high revs when breaking, but also by strange engine noises when accelerating and unstable revving when accelerating rapidly. Perhaps these are consequences of NX drivers constantly thrashing them? Although there's no difference in speed, other 61 reg E40Hs are more tame in comparison. Regardless, all E40Hs are absolutely delightful because of their remarkable acceleration and the pleasant sound they emit - especially the Euro 5 and 6 ones.
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Post by Hassaan on Oct 13, 2016 1:21:19 GMT
Wondering if ADL or Cummins have been at the Euro 5 E40Hs with their laptops? I regularly use the 436 and the EHs are significantly more prone to hit high engine revs than other E40Hs of the same generation. They accelerate in the same aggressive manner as the original 58-60 plate E40Hs. EH14 for example - youtu.be/qtPtlFWxdysI think that driver was probably enjoying himself with that bus and liked overtaking. The short clip demonstrates the quick rev up when accelerating, even more so when braking, as it does for an extended period 35 seconds in. Surprisingly it has time to reach almost full revs even if the brake is applied as low as 10mph, as shown right at the end. It's not the only one like it - quite a few at NX are the same. Any others in London like this? I've also noticed GAL 61 reg E40Hs are somewhat different to identical ones of different operators regarding their engine behaviour, they tend to behave more erratically for some reason. As you mention, this is evident on some by random high revs when breaking, but also by strange engine noises when accelerating and unstable revving when accelerating rapidly. Perhaps these are consequences of NX drivers constantly thrashing them? Although there's no difference in speed, other 61 reg E40Hs are more tame in comparison. Regardless, all E40Hs are absolutely delightful because of their remarkable acceleration and the pleasant sound they emit - especially the Euro 5 and 6 ones. Euro 6 E400Hs have to be my favourite out of the Euro 6 buses in London. The B5LHs are also very good but E400Hs edge ahead I think. Not sure if my journey on the N68 back in May would have been as fun if I had a MHV instead of EH49 (#SorryNotSorry MHV lover RandomBusesGirl ! )
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Post by vjaska on Oct 13, 2016 1:28:37 GMT
Wondering if ADL or Cummins have been at the Euro 5 E40Hs with their laptops? I regularly use the 436 and the EHs are significantly more prone to hit high engine revs than other E40Hs of the same generation. They accelerate in the same aggressive manner as the original 58-60 plate E40Hs. EH14 for example - youtu.be/qtPtlFWxdysI think that driver was probably enjoying himself with that bus and liked overtaking. The short clip demonstrates the quick rev up when accelerating, even more so when braking, as it does for an extended period 35 seconds in. Surprisingly it has time to reach almost full revs even if the brake is applied as low as 10mph, as shown right at the end. It's not the only one like it - quite a few at NX are the same. Any others in London like this? I've also noticed GAL 61 reg E40Hs are somewhat different to identical ones of different operators regarding their engine behaviour, they tend to behave more erratically for some reason. As you mention, this is evident on some by random high revs when breaking, but also by strange engine noises when accelerating and unstable revving when accelerating rapidly. Perhaps these are consequences of NX drivers constantly thrashing them? Although there's no difference in speed, other 61 reg E40Hs are more tame in comparison. Regardless, all E40Hs are absolutely delightful because of their remarkable acceleration and the pleasant sound they emit - especially the Euro 5 and 6 ones. I find Euro V Enviro hybrids to be extremely dull when compared to Euro IV's or the lovely rocket sounding Euro VI's - that whooshing noise is just so epic. At Euro V, I'd take a B5LH over a Enviro hybrid everytime but at Euro VI, I'd take a whooshing Enviro hybrid even though I really like the Euro VI B5LH with that ticking noise it makes when accelerating
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Post by Hassaan on Oct 13, 2016 1:50:35 GMT
I've also noticed GAL 61 reg E40Hs are somewhat different to identical ones of different operators regarding their engine behaviour, they tend to behave more erratically for some reason. As you mention, this is evident on some by random high revs when breaking, but also by strange engine noises when accelerating and unstable revving when accelerating rapidly. Perhaps these are consequences of NX drivers constantly thrashing them? Although there's no difference in speed, other 61 reg E40Hs are more tame in comparison. Regardless, all E40Hs are absolutely delightful because of their remarkable acceleration and the pleasant sound they emit - especially the Euro 5 and 6 ones. I find Euro V Enviro hybrids to be extremely dull when compared to Euro IV's or the lovely rocket sounding Euro VI's - that whooshing noise is just so epic. At Euro V, I'd take a B5LH over a Enviro hybrid everytime but at Euro VI, I'd take a whooshing Enviro hybrid even though I really like the Euro VI B5LH with that ticking noise it makes when accelerating That is also my favourite thing about them
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Post by rmz19 on Oct 13, 2016 3:00:26 GMT
I've also noticed GAL 61 reg E40Hs are somewhat different to identical ones of different operators regarding their engine behaviour, they tend to behave more erratically for some reason. As you mention, this is evident on some by random high revs when breaking, but also by strange engine noises when accelerating and unstable revving when accelerating rapidly. Perhaps these are consequences of NX drivers constantly thrashing them? Although there's no difference in speed, other 61 reg E40Hs are more tame in comparison. Regardless, all E40Hs are absolutely delightful because of their remarkable acceleration and the pleasant sound they emit - especially the Euro 5 and 6 ones. I find Euro V Enviro hybrids to be extremely dull when compared to Euro IV's or the lovely rocket sounding Euro VI's - that whooshing noise is just so epic. At Euro V, I'd take a B5LH over a Enviro hybrid everytime but at Euro VI, I'd take a whooshing Enviro hybrid even though I really like the Euro VI B5LH with that ticking noise it makes when accelerating Yes indeed, that whooshing sound of the Euro VI E40H/D is exceptional, ditto the Euro VI E20D. However, I can't agree with you regarding the Euro V E40H and the B5LH ticking sound. Personally, although the Euro V sounds more tame than the Euro VI the former still has that brilliant robotic whine coupled with the deep revving hum which sounds very pleasant, the latter just amplifies it even more with the whoosh. The ticking sound the B5LHs make just doesn't appeal to me at all, it sounds very dull and is somewhat reminiscent of an old VW Beetle.
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Post by gloriouswater on Oct 13, 2016 16:44:23 GMT
Any others in London like this? Love E40Hs. I've noticed a few of the WL batch behave like this, I want to say 2437 is one of them. The Euro 6's at QB, also, a few of them now behave like this too. Definitely a lot more behaving like that at WL - 2403, 2408 and 2410 seem particularly rev-happy.
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Post by Nathan on Oct 13, 2016 17:10:51 GMT
Love E40Hs. I've noticed a few of the WL batch behave like this, I want to say 2437 is one of them. The Euro 6's at QB, also, a few of them now behave like this too. Definitely a lot more behaving like that at WL - 2403, 2408 and 2410 seem particularly rev-happy. You must get the fast drivers then. The drivers I get (namely the 172 ones) don't like to 'use and abuse' the hybrids as much as the 436 drivers do.
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Post by gloriouswater on Oct 13, 2016 17:14:05 GMT
Definitely a lot more behaving like that at WL - 2403, 2408 and 2410 seem particularly rev-happy. You must get the fast drivers then. The drivers I get (namely the 172 ones) don't like to 'use and abuse' the hybrids as much as the 436 drivers do. Pro tip: Use the 188 on a quiet evening about 9-10pm, although that kinda has issues now Tower Bridge is closed and everyone goes to the Rotherhithe Tunnel...
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Post by Nathan on Oct 13, 2016 18:31:36 GMT
You must get the fast drivers then. The drivers I get (namely the 172 ones) don't like to 'use and abuse' the hybrids as much as the 436 drivers do. Pro tip: Use the 188 on a quiet evening about 9-10pm, although that kinda has issues now Tower Bridge is closed and everyone goes to the Rotherhithe Tunnel... The 381 is pretty fast between Canada Water and Rotherhithe Tunnel. Not sure what it's like now though with Tower Bridge being closed. Can't wait to see what the Euro 6 upgrade will be like on the hybrids!
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Post by fg49 on Oct 13, 2016 19:48:59 GMT
Love E40Hs. I've noticed a few of the WL batch behave like this, I want to say 2437 is one of them. The Euro 6's at QB, also, a few of them now behave like this too. Definitely a lot more behaving like that at WL - 2403, 2408 and 2410 seem particularly rev-happy. The WL batch tend to be quite rev-happy, I'm very happy with having them in numbers
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Post by 6HP502C on Nov 30, 2016 1:22:06 GMT
Thought I'd share this vid which demonstates how the Euro 5 E400 can perform with TopoDyn, a bit better than the slightly naff one above - youtu.be/gbpHXW2wPjYDon't think I've ever ridden on a bus that nippy! I think the best route to get an Enviro moving anything close to this might be the 173 - I hear those Ts being floored when I serve Chadwell Heath on rail replacement. The 222's ADEs get flogged in the evenings, but those with TopoDyn seem to be limited to 40mph. Anyway, according to ZF, there are five performance categories which the bus moves seemlessly between - SuperEco, Eco, Normal, Power and SuperPower. Each would appear to refer to a specific rev range which the bus chooses to upshift in, i.e SuperPower is probably 1900-2200rpm, only engaged when there are significant resistant forces acting on the bus. It appears the buses referred to in this thread are configured to run in "Power" mode on the flat if the driver floors it. Most of the 9524-9558 batch which have TopoDyn seem set to run in Eco mode if floored. Personally I think these Enviros are too fast ;D . I wouldn't be engaging more than half throttle in town. Operators might complain if this mod which promises fuel efficiency actually increases consumption - but no doubt drivers will speak favourably of it.
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Post by Hassaan on Nov 30, 2016 2:19:16 GMT
Thought I'd share this vid which demonstates how the Euro 5 E400 can perform with TopoDyn, a bit better than the slightly naff one above - youtu.be/gbpHXW2wPjYDon't think I've ever ridden on a bus that nippy! I think the best route to get an Enviro moving anything close to this might be the 173 - I hear those Ts being floored when I serve Chadwell Heath on rail replacement. The 222's ADEs get flogged in the evenings, but those with TopoDyn seem to be limited to 40mph. Anyway, according to ZF, there are five performance categories which the bus moves seemlessly between - SuperEco, Eco, Normal, Power and SuperPower. Each would appear to refer to a specific rev range which the bus chooses to upshift in, i.e SuperPower is probably 1900-2200rpm, only engaged when there are significant resistant forces acting on the bus. It appears the buses referred to in this thread are configured to run in "Power" mode on the flat if the driver floors it. Most of the 9524-9558 batch which have TopoDyn seem set to run in Eco mode if floored. Personally I think these Enviros are too fast ;D . I wouldn't be engaging more than half throttle in town. Operators might complain if this mod which promises fuel efficiency actually increases consumption - but no doubt drivers will speak favourably of it. At DX, only the 173 batch (T66-83) and 368 batch (T168-179) appear to have Topodyn, not the 150 batch (T180-193). As I found out last month when I got T184 on the 173 (knew I should have waited 3 minutes for the one behind ). At Hounslow, the number of Topodyn ADEs still appears to be stuck at 10, which has been the case since August. They're random numbers as well (ADE's 2, 8, 14, 18, 28, 29, 30, 31, 33 and 36) Last month I had E166 on the 474 being floored, here is a short clip of it on the bridge over the Royal Docks near Gallions Reach
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Post by portman227 on Dec 1, 2016 23:00:56 GMT
Thought I'd share this vid which demonstates how the Euro 5 E400 can perform with TopoDyn, a bit better than the slightly naff one above - youtu.be/gbpHXW2wPjYDon't think I've ever ridden on a bus that nippy! I think the best route to get an Enviro moving anything close to this might be the 173 - I hear those Ts being floored when I serve Chadwell Heath on rail replacement. The 222's ADEs get flogged in the evenings, but those with TopoDyn seem to be limited to 40mph. Anyway, according to ZF, there are five performance categories which the bus moves seemlessly between - SuperEco, Eco, Normal, Power and SuperPower. Each would appear to refer to a specific rev range which the bus chooses to upshift in, i.e SuperPower is probably 1900-2200rpm, only engaged when there are significant resistant forces acting on the bus. It appears the buses referred to in this thread are configured to run in "Power" mode on the flat if the driver floors it. Most of the 9524-9558 batch which have TopoDyn seem set to run in Eco mode if floored. Personally I think these Enviros are too fast ;D . I wouldn't be engaging more than half throttle in town. Operators might complain if this mod which promises fuel efficiency actually increases consumption - but no doubt drivers will speak favourably of it. So does this treatment mean that running at low acceleration performance with Topodyn mean it's only going to make it rev happy. I've come across examples where T142 is a beast unrestricted with same configuration setting as 9541, but other examples which are rev happy are also slow at the same time. Makes me wonder if the bus wants to be fast but it can't
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Post by M1104 on Jun 13, 2017 12:11:03 GMT
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Post by 6HP502C on Jun 13, 2017 13:14:56 GMT
Interesting video - maybe they should show it to the drivers on induction, then they might have a bit more respect for such a wonderful piece of engineering
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