|
Post by timelesstable on Feb 5, 2011 9:30:52 GMT 1
When the final drive line is the same in the 3 or 4 speed gearbox then the 4 speed will not go any faster, it might just get there a bit quicker. If you want to go faster in those circumstances you will only achieve by easing the governer slightly to get from 52 to 57 you would have increase the engine speed by 10%. That will not happen. I would love to know where the ALX400 got to 65mph, I'm sure the Police and VOSA would too. The 3 Speed Voith's rev higher than the 4 Speed & flat out can acheive a faster speed. It was somewhere on the 410 route, don't know what road exactly but it was one where the speed limit was 60, but it seemed to be going faster than that at the time. You might want to read the technical specification 56MPH www.southdownpsv.co.uk/sales/bus_details.php?bus=183from the following: Engine Type: Volvo D7C 215 bhp Euro 2 Gearbox Type: ZF 5HP500
|
|
kendall17
Forum Member
Justice for the 96!
Posts: 4,515
|
Post by kendall17 on Feb 5, 2011 15:58:34 GMT 1
That would be set specifically to that vehicle. I'm sure with some tweaking more could be put higher but not too much.
65mph is a bit random. How can you tell how fast a bus is going without having a GATSO or seeing the speedo?
It seems my Corsa does 155mph, but when i looked at the speedo, it said 45.
Stupid!
|
|
Matty
Forum Member
Posts: 5,615
|
Post by Matty on Feb 5, 2011 19:54:23 GMT 1
Well I had been on a Spectra previously that was doing around 56 flat out & it didn't seem to be going that fast.. but an hour or so later when I got on the ALX400 we was going flat out it seemed like it was doing well over that... like Motorway Speeds downhill (that's where I got the 65 mark from, but could have been more)
|
|
|
Post by timelesstable on Feb 5, 2011 20:26:59 GMT 1
Well I had been on a Spectra previously that was doing around 56 flat out & it didn't seem to be going that fast.. but an hour or so later when I got on the ALX400 we was going flat out it seemed like it was doing well over that... like Motorway Speeds downhill (that's where I got the 65 mark from, but could have been more) I got mine from the technical data, no need to have a guess
|
|
|
Post by driver6540 on Feb 5, 2011 21:35:37 GMT 1
Id, be very surprised if any regular service bus could achieve the kind of speeds some of you are bandying about, 65mph etc. When youre sat upstairs you may feel youre going like Lewis Hamilton but youre not. The best people to answer the question'Which bus is the fastest?' are the bus drivers on this forum.
|
|
|
Post by billycarne on Feb 5, 2011 22:34:02 GMT 1
the east lancs cityzen scania N113s at brighton and hove can do over 70MPH. and that is according to a bus driver there. so i reckon some of these speed limits are realistic.
i have been on a low floor spectra on the 410 and i swear it was doing in excess of 60.
ZF b7tls can reach about 70 without a speed limiter.
|
|
|
Post by timelesstable on Feb 6, 2011 10:55:37 GMT 1
the east lancs cityzen scania N113s at brighton and hove can do over 70MPH. and that is according to a bus driver there. so i reckon some of these speed limits are realistic. i have been on a low floor spectra on the 410 and i swear it was doing in excess of 60. ZF b7tls can reach about 70 without a speed limiter. The Castleford engineers must have been at work on their low floor Spectras they were limited to 52 MPH at Belle Isle. I think it would now be illegal to use a B7 without a speed limiter according to VOSA www.vosa.gov.uk/vosa/repository/Speed%20Limiters%20-%20New%20Regulations%20-%20Table%20of%20dates.pdf
|
|
Matty
Forum Member
Posts: 5,615
|
Post by Matty on Feb 6, 2011 20:06:31 GMT 1
the east lancs cityzen scania N113s at brighton and hove can do over 70MPH. and that is according to a bus driver there. so i reckon some of these speed limits are realistic. i have been on a low floor spectra on the 410 and i swear it was doing in excess of 60. ZF b7tls can reach about 70 without a speed limiter. Yes the 410 is one of them routes where the drivers go over the speed limits a lot & I'm sure the limiter on that ALX400 I was on was either broke or not working....
|
|
|
Post by timelesstable on Feb 6, 2011 20:19:26 GMT 1
the east lancs cityzen scania N113s at brighton and hove can do over 70MPH. and that is according to a bus driver there. so i reckon some of these speed limits are realistic. i have been on a low floor spectra on the 410 and i swear it was doing in excess of 60. ZF b7tls can reach about 70 without a speed limiter. Yes the 410 is one of them routes where the drivers go over the speed limits a lot & I'm sure the limiter on that ALX400 I was on was either broke or not working.... Highly unlikely the drivers are exceeding the speed limits given that little traffic light box recently install on top of the dash, is watching their engine speed and fuel consumption all the time.
|
|
|
Post by driver6540 on Feb 6, 2011 20:21:45 GMT 1
Heres a thought for you, the next time youre howling with glee at the thought of the decker youre travelling on, going at illegal speeds, when you get off, ask the driver what the speed rating is for the remould or recut tyres fitted to that bus. I probably come across as a killjoy, but im still convinced youthfull exubarance is masking factual accuracies on this subject.
|
|
|
Post by timelesstable on Feb 6, 2011 21:36:47 GMT 1
Heres a thought for you, the next time youre howling with glee at the thought of the decker youre travelling on, going at illegal speeds, when you get off, ask the driver what the speed rating is for the remould or recut tyres fitted to that bus. I probably come across as a killjoy, but im still convinced youthfull exubarance is masking factual accuracies on this subject. Here, here
|
|
|
Post by fwybuses on Feb 7, 2011 23:28:26 GMT 1
Coastliner/B7 on the 36 can reach good 50-60 on flat roads. However B7 on 36 hardly reach this due to hills and corner's on the route. B7TL @ leeds was doing 50 on the X84 when i went to get off. He was running in excess of 35 minutes late. B9TL in leeds bet can reach easily 60, seen it reach 45/50 on otley road!
|
|
|
Post by timelesstable on Feb 8, 2011 18:41:00 GMT 1
|
|
|
Post by www.buseireann.ie on Feb 9, 2011 0:15:48 GMT 1
You'll soon see the bus become like a funeral car at these speeds! I'm all for slowing down in built up areas but come on, we're trying to attract car passengers not put them off, can't see a bus which is only capable of doing just over 40mph getting people who live out of town to their place of work quickly!
|
|
|
Post by billycarne on Feb 9, 2011 5:00:44 GMT 1
You'll soon see the bus become like a funeral car at these speeds! I'm all for slowing down in built up areas but come on, we're trying to attract car passengers not put them off, can't see a bus which is only capable of doing just over 40mph getting people who live out of town to their place of work quickly! completly agree. this is the problem. everyone i know who won't use use public transport say its too slow. i was behind the number 6 the other day doing 15mph in the 40mph bit on otley old road and i almost got rear-ended as a result.
|
|
|
Post by timelesstable on Feb 9, 2011 7:58:55 GMT 1
You'll soon see the bus become like a funeral car at these speeds! I'm all for slowing down in built up areas but come on, we're trying to attract car passengers not put them off, can't see a bus which is only capable of doing just over 40mph getting people who live out of town to their place of work quickly! Thats all well and fine but with all the bus stop start operation it is how quickly the bus can get to 30MPH and then 40 MPH which matters not having got to 40MPH how much faster it will go actually. How much of the bus route mileage in West Yorks is operated over roads where the speed limit is 30 MPH and how much of what is left over roads where it is 40 MPH. I agree there is some where the limit is 50 MPH or even higher but that must be the final 5/10% unless any other member knows the true amounts?
|
|
|
Post by Craig on Feb 9, 2011 19:21:19 GMT 1
I can honestly say that I've never once been driving behind a bus that wasn't doing at least just under the speed limit if not way below it. Even out of service buses rarely speed around especially with the multitude of speed cameras around.
But I do think that travelling on a bus can give the illusion that the vehicle is moving faster than it is. Whereas 30mph in a car often feels impossibly slow especially on long straight roads. This probably accounts for most reports of buses doing 50mph down The Headrow, etc etc.
|
|
|
Post by driver6540 on Feb 9, 2011 20:34:42 GMT 1
I can honestly say that I've never once been driving behind a bus that wasn't doing at least just under the speed limit if not way below it. Even out of service buses rarely speed around especially with the multitude of speed cameras around. But I do think that travelling on a bus can give the illusion that the vehicle is moving faster than it is. Whereas 30mph in a car often feels impossibly slow especially on long straight roads. This probably accounts for most reports of buses doing 50mph down The Headrow, etc etc. Yes, id say youve got it spot on there.
|
|
|
Post by danielnew on Feb 14, 2011 0:56:16 GMT 1
The problem is that car drivers are used to abusing the speed limits, ask most car drivers and they will tell you truthfully that they regularly exceed 80 mph on motorways and exceed most other speed limits so the bus has to compete speed wise and this is an area that has been totally ignored in the future development of bus technology - I'm not saying they should exceed the limit; just that they should have quick acceleration/deceleration and be able to keep pace with other traffic to a limit of 62mph, perhaps cars should have limiters fitted then people wouldn't be boasting how quick they can get there compared to the train or bus! I'm sure some buses are capable of doing 70-80 but are so heavily restricted that it would not happen in reality.
DriveGreen technology is destroying reliability and driver freedom; I've watched the LED's light up red numerous times on the Arriva buses I've been on, it seems to occur if the driver accelerates beyond 30mph which is ridiculous as is the limiters fitted to som London Enviro 200's and Solo's which are restricted to 39mph! Are we going back to the days of horse drawn buses?!! I know lets make an electric bus that does 10mph that will keep pace with London traffic lol!
|
|
kendall17
Forum Member
Justice for the 96!
Posts: 4,515
|
Post by kendall17 on Feb 14, 2011 16:47:18 GMT 1
Just sat behind Royale 30244 on the A1(m) link between Hunslet & Colton (i was off at Colton) and it was doing around 55mph.
|
|
|
Post by timelesstable on Feb 14, 2011 18:29:11 GMT 1
Just sat behind Royale 30244 on the A1(m) link between Hunslet & Colton (i was off at Colton) and it was doing around 55mph. I'm not familiar with that section of road is it reasonably flat or is it more downhill or a slight climb?
|
|
kendall17
Forum Member
Justice for the 96!
Posts: 4,515
|
Post by kendall17 on Feb 14, 2011 19:00:27 GMT 1
Just sat behind Royale 30244 on the A1(m) link between Hunslet & Colton (i was off at Colton) and it was doing around 55mph. I'm not familiar with that section of road is it reasonably flat or is it more downhill or a slight climb? Pretty flat if i'm honest.
|
|
|
Post by timelesstable on Feb 14, 2011 21:59:25 GMT 1
I'm not familiar with that section of road is it reasonably flat or is it more downhill or a slight climb? Pretty flat if i'm honest. So provided the driver wasn't holding back then 55MPH flat out!!!!
|
|
kendall17
Forum Member
Justice for the 96!
Posts: 4,515
|
Post by kendall17 on Feb 14, 2011 23:32:48 GMT 1
Pretty flat if i'm honest. So provided the driver wasn't holding back then 55MPH flat out!!!! Yeah, i think we can take that as fact. It said 55mph on my speedo, so give or take 1 or 2 either side.
|
|
Matty
Forum Member
Posts: 5,615
|
Post by Matty on Feb 14, 2011 23:46:12 GMT 1
It will be limited to 56 then...
|
|