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Author Can someone confirm this..
Scotty C
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Registered: 6th Nov 05
Location: Kidderminster Drives: 1.6 16v Sport
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8th Mar 07 at 12:54   View User's Profile U2U Member Reply With Quote

Was ploding along last night at a steady 3,000rpm. Then I got thinking, I wonder how many times the pistions are going up and down every second.

The answer is 50 times a second Is this right? Pistion no.1 travelling from TDC, to the bottom, to TDC again, 50 times a second?

So, Brosters silly 11k rev limit means that his will going up and down 183 times a second when being revved to 11k

This can't be right, surely? I know can see why they blow up

Dicuss

[Edited on 08-03-2007 by Monster]
Ben G
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Registered: 12th Jan 07
Location: Essex
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8th Mar 07 at 12:56   View User's Profile U2U Member Reply With Quote

could be a useful sex toy
Scotty C
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Registered: 6th Nov 05
Location: Kidderminster Drives: 1.6 16v Sport
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8th Mar 07 at 13:03   View User's Profile U2U Member Reply With Quote

Thanks for the helpful reply
Kurt
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Registered: 23rd Oct 05
Location: Hi
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8th Mar 07 at 13:04   View User's Profile U2U Member Reply With Quote

whats the formula?
Scotty C
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Registered: 6th Nov 05
Location: Kidderminster Drives: 1.6 16v Sport
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8th Mar 07 at 13:05   View User's Profile U2U Member Reply With Quote

Eh?
Dean_W
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Registered: 13th Dec 05
Location: Downham Market, Norfolk
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8th Mar 07 at 13:06   View User's Profile U2U Member Reply With Quote

RPM divided by 60.
uppy
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Registered: 8th Nov 06
Location: Hampshire
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8th Mar 07 at 13:08   View User's Profile U2U Member Reply With Quote

183.333333333recering

to be presise lol and aint good for the car
SXi_Tim
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Registered: 11th Mar 03
Location: South Yorkshire Drives: RS3, LET B
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8th Mar 07 at 13:12   View User's Profile U2U Member Reply With Quote

I have seen like a glass case engine working before, you can't even really see the main components working as they are moving that fast
pdwhelan
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Registered: 25th Sep 06
Location: Wigan
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8th Mar 07 at 13:15   View User's Profile U2U Member Reply With Quote

LOL what about a F1? I dont even know the rev limits of them so someone else can work it out
Dean_W
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Registered: 13th Dec 05
Location: Downham Market, Norfolk
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8th Mar 07 at 13:18   View User's Profile U2U Member Reply With Quote

20,000 RPM. Around 330 times per second......jeez.
Ben G
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Registered: 12th Jan 07
Location: Essex
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8th Mar 07 at 13:18   View User's Profile U2U Member Reply With Quote

quote:
Originally posted by pdwhelan
LOL what about a F1? I dont even know the rev limits of them so someone else can work it out


probably very high, that's why they only have engines that last 1-2 races
Kurt
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Registered: 23rd Oct 05
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8th Mar 07 at 13:18   View User's Profile U2U Member Reply With Quote

quote:
Originally posted by Dean_W
RPM divided by 60.


why divided by 60?
Dean_W
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Registered: 13th Dec 05
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8th Mar 07 at 13:19   View User's Profile U2U Member Reply With Quote

60 seconds per minute.
Scotty C
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Registered: 6th Nov 05
Location: Kidderminster Drives: 1.6 16v Sport
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8th Mar 07 at 13:22   View User's Profile U2U Member Reply With Quote

My god Thats crazy!

Why do they need to go up and down that fast?

[Edited on 08-03-2007 by Monster]
pdwhelan
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8th Mar 07 at 13:22   View User's Profile U2U Member Reply With Quote

quote:
Originally posted by Dean_W
20,000 RPM. Around 330 times per second......jeez.


thats STUPID! lol
pdwhelan
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Registered: 25th Sep 06
Location: Wigan
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8th Mar 07 at 13:23   View User's Profile U2U Member Reply With Quote

lol monster, They only go that fast when you drive fast
Scotty C
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Registered: 6th Nov 05
Location: Kidderminster Drives: 1.6 16v Sport
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8th Mar 07 at 13:23   View User's Profile U2U Member Reply With Quote

I can't see how that's physically possiable, I really can't.
Dean_W
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Registered: 13th Dec 05
Location: Downham Market, Norfolk
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8th Mar 07 at 13:24   View User's Profile U2U Member Reply With Quote

Tight tolerances and lots of lube.
Scotty C
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Registered: 6th Nov 05
Location: Kidderminster Drives: 1.6 16v Sport
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8th Mar 07 at 13:24   View User's Profile U2U Member Reply With Quote

quote:
Originally posted by pdwhelan
lol monster, They only go that fast when you drive fast


No, my orginal question, 50 times a second, traveling at a steady 3k rpm.

I'm aware they go up and down faster as the rpm increases
scotty86d
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Registered: 24th Jan 07
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8th Mar 07 at 13:27   View User's Profile U2U Member Reply With Quote

you think thats impressive.....try 300spm having a wank!!!(strokes per minute, that works out at 5 a second)
deano87
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Registered: 21st Oct 06
Location: Bedfordshire Drives: Ford Fiesta
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8th Mar 07 at 13:28   View User's Profile U2U Member Reply With Quote

quote:
Originally posted by scotty86d
you think thats impressive.....try 300spm having a wank!!!(strokes per minute, that works out at 5 a second)

Marc3_astra
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Registered: 11th Feb 04
Location: Hull
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8th Mar 07 at 13:29   View User's Profile U2U Member Reply With Quote

if the crank is turning 3000 times a minute then thats 50 times a second. there are 4 pistons that work in twos so wouldn't the pistons do 25 full rotations second does that make sense to any one else i've made my self go cross eyed
Dean_W
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Registered: 13th Dec 05
Location: Downham Market, Norfolk
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8th Mar 07 at 13:30   View User's Profile U2U Member Reply With Quote



does that take tight tolerances and a lot of lube?
Scotty C
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Registered: 6th Nov 05
Location: Kidderminster Drives: 1.6 16v Sport
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8th Mar 07 at 13:32   View User's Profile U2U Member Reply With Quote

quote:
Originally posted by Marc3_astra
if the crank is turning 3000 times a minute then thats 50 times a second. there are 4 pistons that work in twos so wouldn't the pistons do 25 full rotations second does that make sense to any one else i've made my self go cross eyed


Nope, because if the crank has done 1 full rotation ALL of the pistions have all gone from TDC, to the bottom then back to TDC

[Edited on 08-03-2007 by Monster]
Scotty C
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Registered: 6th Nov 05
Location: Kidderminster Drives: 1.6 16v Sport
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8th Mar 07 at 13:33   View User's Profile U2U Member Reply With Quote

quote:
Originally posted by scotty86d
you think thats impressive.....try 300spm having a wank!!!(strokes per minute, that works out at 5 a second)


Noted

That'll give the misses something to do tonight

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