Engin Revolutions
- Thread starter muddy
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slob
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you need to know the dia.of yer tyres. and if diesel or petrol. and also what altitude you are at.
Thanx Slob
The gearbox is, as you know, directly linked to your engine via the clutch plate and the speedo drive. So for instance the crank and flywheel makes one revolution the output shaft in 4th gear makes 2 or how many, I don’t know. But those revolutions on the gearbox are converted into km/h and that is what I need to know. So I'll be more specific: The revs in 4th gear at 110km/h on a series III gearbox.
The gearbox is, as you know, directly linked to your engine via the clutch plate and the speedo drive. So for instance the crank and flywheel makes one revolution the output shaft in 4th gear makes 2 or how many, I don’t know. But those revolutions on the gearbox are converted into km/h and that is what I need to know. So I'll be more specific: The revs in 4th gear at 110km/h on a series III gearbox.
slob
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4th gear is a direct drive from the engine so its 1:1......... you still need to know the diameter of yer tyres. as a bigger dia. tyre will cover more distance than a smaller dia. one. so armed with that info and yer diff ratios you should be able to work it out. would you like to borrow my calulator???
slob
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why do you need to know this?????????
Okay the reason why I need this...I have loaded a 2L Toyota turbo diesel into my landy but I know the Landrover gearboxes where designed for petrol engines mainly. Petrol engines are normally high rev machines so I need to know the revs not to damage the diesel engine. Sure one can calculate the revs of the engine through the drive train but you still have to calculate it...I just hoped someone would know this info. Anyway I'm only concerned on what the speedometer is showing me not the actual speed I'm traveling that’s why the rest of the variables where of no value for one can lift the rear axle and check the speedometer and rev counter if one are so privileged to have one.
yella
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let me get this right, you are asking this question so that you don't over rev the engine before changing gear?
if i am understanding this correctly can't you judge when to change gear by the sound of the engine? i never look at the rev counter to change gear i always do it by the engine note
if i have read this wrong then i'm sorry
if i am understanding this correctly can't you judge when to change gear by the sound of the engine? i never look at the rev counter to change gear i always do it by the engine note
if i have read this wrong then i'm sorry
slob
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one is going back to one's bong..............;anybody got a lighter shade of pale??
yella
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a lighter what ?
slob
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Ashoofack
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muddy,
I'm sure I'm just being a little thick here; i often am. But can you explain that again in a different manner as I haven't got clue what you meant there.
I'm sure I'm just being a little thick here; i often am. But can you explain that again in a different manner as I haven't got clue what you meant there.
When you have a engine as smooth running as this one you cant extinguish between engine revs and road noises properly. Switching gears is not the problem, its the top speed and I have calculated the revs at 2585 rpm when doing 110 km/h whith a wheel diameter of 0,765 m, which is high when using a diesel.
yella
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most diesel engines have a rev limiter anyway to stop you over revving them and they pesk out so you will know, or you should
yella
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are you having a laugh or what, you can't tell the difference between road noise that only varies with speed or engine revs that vary when you put yer foot down on the throttle?????
