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Post by Deleted on Apr 28, 2014 11:33:14 GMT
Hi all, just thought i'd make a thread to find out whether some batches of buses are limited or not. I've traveled on various models and noticed some faster than others. As an example i traveled on SP165 today and i noticed it was considerably different to all the other buses in that batch but still stopping at 35 mph or so. Another journey was a very fast DLE too. Is it a legal thing that buses are limited or maybe a cost cutting measure? Or safety measures when made by the company (Make) ?
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Post by Nathan on Apr 28, 2014 12:12:13 GMT
The 172 batch (9830-42) and the 35/40 batch (9425(?)-66) are all very slow. It either because of bad engineering, or they were made to be restricted. Or most likely both, lol.
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Post by M1104 on Apr 28, 2014 12:12:39 GMT
It's not legal that bus's speed capability have to be limited, but it does increase percentage of safety and economy. Buses can also be adjusted in terms of torque/horsepower, pullaway, gear changing, kickdown, etc.
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Post by M1104 on Apr 28, 2014 12:25:49 GMT
The 172 batch (9830-42) and the 35/40 batch (9425(?)-66) are all very slow. It either because of bad engineering, or they were made to be restricted. Or most likely both, lol. WL's batch I believe starts from 9428 as 9423/4-9427 are officially part of the 344 batch. 9467 upwards on the 09 plate are mostly restricted to a maximum speed of 30mph, which means they never go into 6th gear (engaged at around 35 mph). They are also restricted in that they don't have the throttle kickdown. AL's Es for the 118 I believe are restricted at around 50 mph, or perhaps even not restricted in speed as I have ridden a few that go well into 6th gear. I have yet to travel on WDL1 since my last time on it on the 35, but I was told she is not as powerful as she was when at Q. Sutton's deckers tend to have little restriction, if any. They certainly seem to have the best B7TL's in terms of performance. Some of TC's DWs are restricted at around 45 mph, evidential along Croydon Road within Mitcham Common.
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Post by Nathan on Apr 28, 2014 12:33:41 GMT
It's not legal that bus's speed capability have to be limited, but it does increase percentage of safety and economy. Buses can also be adjusted in terms of torque/horsepower, pullaway, gear changing, kickdown, etc. I assume that the majority of buses that are used mainly in Inner London are restricted. But obviously for bused that are used on dual carriageways or motor ways (e.g. Route 34) then it would be silly to restrict them.
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Post by Deleted on Apr 28, 2014 12:38:44 GMT
TE976-992 are restricted to 39mph.
VW1180 & 1182 are the only geared up VWs at PA. Not sure why those two were chosen. Ironically both have been involved in two major RTCs.
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Post by M1104 on Apr 28, 2014 13:00:23 GMT
VW1180 & 1182 are the only geared up VWs at PA. Not sure why those two were chosen. They could be tachograph fitted buses often used for private hire, which may require journeys along the motorway.
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Post by vjaska on Apr 28, 2014 13:35:37 GMT
Most of Quality Lines fleet is restricted - the Versas are restricted to 35mph and the Solos are restricted to 27mph. Not sure regarding the Enviro 400's & Citaros. I think the S3's Esteems may be restricted whilst the S1's Esteems aren't restricted.
Arriva's Euro V T's at N & TH go well into 6th gear as do the 220's ADE's - some of the 118's E's feel a bit sluggish.
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Post by vjaska on Apr 28, 2014 13:37:16 GMT
It's not legal that bus's speed capability have to be limited, but it does increase percentage of safety and economy. Buses can also be adjusted in terms of torque/horsepower, pullaway, gear changing, kickdown, etc. I assume that the majority of buses that are used mainly in Inner London are restricted. But obviously for bused that are used on dual carriageways or motor ways (e.g. Route 34) then it would be silly to restrict them. There are restricted TE's on the 107 despite it using a 50mph road.
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Post by Hassaan on Apr 28, 2014 15:01:59 GMT
Hi all, just thought i'd make a thread to find out whether some batches of buses are limited or not. I've traveled on various models and noticed some faster than others. As an example i traveled on SP165 today and i noticed it was considerably different to all the other buses in that batch but still stopping at 35 mph or so. Where as on a journey on SP48 heading back from Kingston the bus was able to go well over 40MPH. Another journey was a very fast DLE too. Is it a legal thing that buses are limited or maybe a cost cutting measure? Or safety measures when made by the company (Make) ? Good you've found that one it is my favourite . SP165 has a slight restriction on pullaway but nothing from 3rd gear onwards and gets thrashed most of the time I find it . However, it is the only one restricted to 35mph; the rest are at 40mph .
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Post by VPL630 on Apr 28, 2014 16:49:18 GMT
Any E400 from around 59/10 reg has no manual Kidckdown Same with E200's from late 60 reg No London B9TL has manual Kickdown
Arriva's DW's from DW401 are speed limited to 42MPH Arriva's DW's in London from DW425 (No idea why) have no kickdown
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Post by M1104 on Apr 28, 2014 17:01:24 GMT
Any E400 from around 59/10 reg has no manual Kidckdown Same with E200's from late 60 reg No London B9TL has manual Kickdown Arriva's DW's from DW401 are speed limited to 42MPH Arriva's DW's in London from DW425 (No idea why) have no kickdown Abellio has a 12 reg E400 where the kickdown works. Some 'first generation' DWs (DB250 chassis) are speed restricted.
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Post by 6HP502C on Apr 28, 2014 17:18:31 GMT
The 6 speed ZF SPs at LU are primarily limited to 39mph. Some may be limited to 35mph. These buses have a manual kickdown that allows the bus to downshift, but they are still limited to around 1500rpm. The 5 speed ZF SPs (08/58 plate) are limited to 56mph but have no kickdown function at all. In both cases, pumping the throttle overrides the rev restriction.
Most TAs at LU are limited to 56mph. A few of the 51 reg TAs can do 62mph, whilst Voithers 341-346 can do 60mph. TLA3 is limited to 39mph, but some other low numbered TLAs can do at least 56mph.
Some of the SLEs have a fully functional kickdown, some don't. Some are limited to 45mph, others are limited to 50mph.
As for Abellio, 9401 - 9427 have an acceleration rate restriction in place and are limited to 40mph. 9428 - 9466 are mixed - a decreasing number have the same accelration restriction. More of them have a blanket power restriction, so they are slow regardless of the gradient. Rogues 9403 and 9448 have escaped restriction - the former can do 56mph, whilst the latter is described as "our king" by some WL drivers.
As for 9467 - 9523, they have severe impediments on acceleration. In terms of time taken to reach 30mph on the flat, now that the S reg DLAs are gone, they are possibly the slowest batch of buses in London, excepting those with mechanical faults. The majority are limited to 30mph. A few are limited to 40mph. A couple of rogues, 9482 and 9483 have a fully functional kickdown, but are still limited to 30mph.
9524+ were fully unlimited. There was no speed restriction at all, not even at 56mph. No kickdown however.
Abellio's Vs are limited to 40mph, at least the 9001 - 9020 batch are. I don't think I ever got any of the newer ones anywhere near that speed.
Some of Abellio's TAs can do 56mph. Several are limited to 40mph, whilst 9827 is limited to 50mph.
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Post by John tuthill on Apr 28, 2014 17:30:00 GMT
Hi all, just thought i'd make a thread to find out whether some batches of buses are limited or not. I've traveled on various models and noticed some faster than others. As an example i traveled on SP165 today and i noticed it was considerably different to all the other buses in that batch but still stopping at 35 mph or so. Where as on a journey on SP48 heading back from Kingston the bus was able to go well over 40MPH. Where exactly? Be careful what you write
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Post by M1104 on Apr 28, 2014 17:59:10 GMT
The 6 speed ZF SPs at LU are primarily limited to 39mph. Some may be limited to 35mph. These buses have a manual kickdown that allows the bus to downshift, but they are still limited to around 1500rpm. The 5 speed ZF SPs (08/58 plate) are limited to 56mph but have no kickdown function at all. In both cases, pumping the throttle overrides the rev restriction. Most TAs at LU are limited to 56mph. A few of the 51 reg TAs can do 62mph, whilst Voithers 341-346 can do 60mph. TLA3 is limited to 39mph, but some other low numbered TLAs can do at least 56mph. Some of the SLEs have a fully functional kickdown, some don't. Some are limited to 45mph, others are limited to 50mph. As for Abellio, 9401 - 9427 have an acceleration rate restriction in place and are limited to 40mph. 9428 - 9466 are mixed - a decreasing number have the same accelration restriction. More of them have a blanket power restriction, so they are slow regardless of the gradient. Rogues 9403 and 9448 have escaped restriction - the former can do 56mph, whilst the latter is described as "our king" by some WL drivers. As for 9467 - 9523, they have severe impediments on acceleration. In terms of time taken to reach 30mph on the flat, now that the S reg DLAs are gone, they are possibly the slowest batch of buses in London, excepting those with mechanical faults. The majority are limited to 30mph. A few are limited to 40mph. A couple of rogues, 9482 and 9483 have a fully functional kickdown, but are still limited to 30mph. 9524+ were fully unlimited. There was no speed restriction at all, not even at 56mph. No kickdown however. Abellio's Vs are limited to 40mph, at least the 9001 - 9020 batch are. I don't think I ever got any of the newer ones anywhere near that speed. Some of Abellio's TAs can do 56mph. Several are limited to 40mph, whilst 9827 is limited to 50mph. The Vs on the 157 can do 50mph
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