 stupid question ... |
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| SirAndy |
  Nov 14 2003, 05:37 PM
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#1
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Resident German  Group: Admin Posts: 41,625 Joined: 21-January 03 From: Oakland, Kalifornia Member No.: 179 Region Association: Northern California  |
for each full revolution of the crank (360 deg), how many power-strokes do you have on a 4-cylinder boxer?
1? or, to be more precise, how many OPEN intake valves do you have per full revolution of the crank? (ignore overlap, only full open valves). Andy |
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| ArtechnikA |
Nov 14 2003, 05:45 PM
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#2
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rich herzog Group: Members Posts: 7,390 Joined: 4-April 03 From: Salted Roads, PA Member No.: 513 Region Association: None |
QUOTE(SirAndy @ Nov 14 2003, 03:37 PM) for each full revolution of the crank (360 deg), how many power-strokes do you have on a 4-cylinder boxer? 1? 2 the four strokes are (officially) Suck - Squeeze - Bang - Blow. in that order. each cylinder fires every two revolutions of the crankshaft == 1 revolution of the camshaft. so you get half as many of each stroke in a crankshaft rev as there are cylinders. (4 cyl == 2 intake, 2 compression, 2 power, 2 exhaust). you get you cylinders' complement in a complete revolution of the camshaft ( == 2 crank revs). and since a power stroke 'makes power' over about 120 crankshaft degrees, this is why 6's are so smooth - you have 1 cylinder making power at all times. |
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| SirAndy |
Nov 14 2003, 05:48 PM
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#3
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Resident German Group: Admin Posts: 41,625 Joined: 21-January 03 From: Oakland, Kalifornia Member No.: 179 Region Association: Northern California |
QUOTE(ArtechnikA @ Nov 14 2003, 03:45 PM) Suck - Squeeze - Bang - Blow thank you sir! (IMG:style_emoticons/default/pray.gif) Andy |
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| Kerrys914 |
Nov 14 2003, 06:13 PM
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#4
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Dear, the parts I just sold paid for that part ;) Group: Members Posts: 1,568 Joined: 26-December 02 From: Williamsburg, VA Member No.: 16 |
Suck - Squeeze - Bang - Blow
Ahhhhhh Yes it is Friday night (IMG:style_emoticons/default/laugh.gif) (IMG:style_emoticons/default/mueba.gif) (IMG:style_emoticons/default/mueba.gif) Cheers (IMG:style_emoticons/default/beer.gif) Kerry |
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| madd_dogg_914 |
Nov 14 2003, 06:23 PM
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#5
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Member Group: Members Posts: 478 Joined: 30-March 03 From: Vacaville, CA Member No.: 497 Region Association: Northern California |
QUOTE(ArtechnikA @ Nov 14 2003, 03:45 PM) the four strokes are (officially) Suck - Squeeze - Bang - Blow. in that order. I am definitely gonna have to remember that! -Chris |
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| Bruce Allert |
Nov 14 2003, 06:48 PM
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#6
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Hellions asleep Group: Members Posts: 3,289 Joined: 19-March 03 From: Eagle Creek, Orygun Member No.: 441 Region Association: Pacific Northwest |
sucksqueezebangblowsucksqueezebangblowsucksqueezebangblowsucksqueezebangblowsuck
squeezebangblowsucksqueezebangblowsucksqueezebangblowsucksqueezebangblow OH BABY (IMG:style_emoticons/default/wub.gif) (IMG:style_emoticons/default/smoke.gif) BRUCE |
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| Jeroen |
Nov 14 2003, 06:57 PM
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#7
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914 Guru Group: Members Posts: 7,887 Joined: 24-December 02 From: The Netherlands Member No.: 3 Region Association: Europe |
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| DNHunt |
Nov 14 2003, 07:34 PM
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#8
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914 Wizard? No way. I got too much to learn. Group: Members Posts: 4,099 Joined: 21-April 03 From: Gig Harbor, WA Member No.: 598 |
More important, how long can it turn before the whole thing lets go
Dave |
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| Katmanken |
Nov 14 2003, 07:58 PM
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#9
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You haven't seen me if anybody asks... Group: Members Posts: 4,738 Joined: 14-June 03 From: USA Member No.: 819 Region Association: Upper MidWest |
Think I had a girlfriend like that once...
(IMG:style_emoticons/default/blink.gif) (IMG:style_emoticons/default/huh.gif) (IMG:style_emoticons/default/unsure.gif) (IMG:style_emoticons/default/smile.gif) Ken |
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