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gianttomato
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Re: ITBs & Port X-Sectional Areas + Lengths : Your Thoughts.... Thu, 14 October 2004 21:25 Go to previous messageGo to previous message
The theoretical critical rpm (for a single cylinder engine) is dependent upon the rod length to stroke ratio (as Bill alluded to) as this takes into account piston acceleration, but I can't find the formula.

Practical limitations have changed over the years. In the 50's, bearing technology was the major limitation, but nowadays definitely rod bolts (for us mere mortals anyway). Valve actuation and control was a major issue for F1 manufacturers as they pushed their limits.
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Read Message   ITBs & Port X-Sectional Areas + Lengths : Your Thoughts.... ed_ma61Mon, 11 October 2004 14:59
Read Message   Re: ITBs & Port X-Sectional Areas + Lengths : Your Thoughts.... oldcorollasMon, 11 October 2004 15:13
Read Message   Re: ITBs & Port X-Sectional Areas + Lengths : Your Thoughts.... ed_ma61Mon, 11 October 2004 15:16
Read Message   Re: ITBs & Port X-Sectional Areas + Lengths : Your Thoughts.... ed_ma61Mon, 11 October 2004 15:23
Read Message   Re: ITBs & Port X-Sectional Areas + Lengths : Your Thoughts.... bbaacchhyyMon, 11 October 2004 21:25
Read Message   Re: ITBs & Port X-Sectional Areas + Lengths : Your Thoughts.... takaiMon, 11 October 2004 21:43
Read Message   Re: ITBs & Port X-Sectional Areas + Lengths : Your Thoughts.... bbaacchhyyMon, 11 October 2004 22:15
Read Message   Re: ITBs & Port X-Sectional Areas + Lengths : Your Thoughts.... Steve_ReynoldsMon, 11 October 2004 23:10
Read Message   Re: ITBs & Port X-Sectional Areas + Lengths : Your Thoughts.... gianttomatoMon, 11 October 2004 23:22
Read Message   Re: ITBs & Port X-Sectional Areas + Lengths : Your Thoughts.... Ben WilsonTue, 12 October 2004 05:25
Read Message   Re: ITBs & Port X-Sectional Areas + Lengths : Your Thoughts.... gianttomatoWed, 13 October 2004 13:05
Read Message   Re: ITBs & Port X-Sectional Areas + Lengths : Your Thoughts.... thechucksterWed, 13 October 2004 13:38
Read Message   Re: ITBs & Port X-Sectional Areas + Lengths : Your Thoughts.... oldcorollasWed, 13 October 2004 13:51
Read Message   Re: ITBs & Port X-Sectional Areas + Lengths : Your Thoughts.... ed_ma61Wed, 13 October 2004 14:45
Read Message   Re: ITBs & Port X-Sectional Areas + Lengths : Your Thoughts.... Bill SherwoodWed, 13 October 2004 14:48
Read Message   Re: ITBs & Port X-Sectional Areas + Lengths : Your Thoughts.... ed_ma61Wed, 13 October 2004 15:04
Read Message   Re: ITBs & Port X-Sectional Areas + Lengths : Your Thoughts.... ed_ma61Wed, 13 October 2004 14:58
Read Message   Re: ITBs & Port X-Sectional Areas + Lengths : Your Thoughts.... Bill SherwoodWed, 13 October 2004 15:06
Read Message   Re: ITBs & Port X-Sectional Areas + Lengths : Your Thoughts.... Bill SherwoodWed, 13 October 2004 15:07
Read Message   Re: ITBs & Port X-Sectional Areas + Lengths : Your Thoughts.... ed_ma61Wed, 13 October 2004 15:30
Read Message   Re: ITBs & Port X-Sectional Areas + Lengths : Your Thoughts.... ed_ma61Wed, 13 October 2004 15:40
Read Message   Re: ITBs & Port X-Sectional Areas + Lengths : Your Thoughts.... Bill SherwoodWed, 13 October 2004 15:40
Read Message   Re: ITBs & Port X-Sectional Areas + Lengths : Your Thoughts.... ed_ma61Wed, 13 October 2004 15:42
Read Message   Re: ITBs & Port X-Sectional Areas + Lengths : Your Thoughts.... Bill SherwoodWed, 13 October 2004 15:45
Read Message   Re: ITBs & Port X-Sectional Areas + Lengths : Your Thoughts.... ed_ma61Wed, 13 October 2004 15:50
Read Message   Re: ITBs & Port X-Sectional Areas + Lengths : Your Thoughts.... bbaacchhyyWed, 13 October 2004 21:36
Read Message   Re: ITBs & Port X-Sectional Areas + Lengths : Your Thoughts.... ed_ma61Thu, 14 October 2004 01:34
Read Message   Re: ITBs & Port X-Sectional Areas + Lengths : Your Thoughts.... bbaacchhyyThu, 14 October 2004 02:08
Read Message   Re: ITBs & Port X-Sectional Areas + Lengths : Your Thoughts.... ed_ma61Thu, 14 October 2004 02:26
Read Message   Re: ITBs & Port X-Sectional Areas + Lengths : Your Thoughts.... moo4AGZETA22Thu, 14 October 2004 02:49
Read Message   Re: ITBs & Port X-Sectional Areas + Lengths : Your Thoughts.... bbaacchhyyThu, 14 October 2004 03:09
Read Message   Re: ITBs & Port X-Sectional Areas + Lengths : Your Thoughts.... gianttomatoThu, 14 October 2004 03:52
Read Message   Re: ITBs & Port X-Sectional Areas + Lengths : Your Thoughts.... ed_ma61Thu, 14 October 2004 04:15
Read Message   Re: ITBs & Port X-Sectional Areas + Lengths : Your Thoughts.... gianttomatoThu, 14 October 2004 04:27
Read Message   Re: ITBs & Port X-Sectional Areas + Lengths : Your Thoughts.... bbaacchhyyThu, 14 October 2004 05:06
Read Message   Re: ITBs & Port X-Sectional Areas + Lengths : Your Thoughts.... gianttomatoThu, 14 October 2004 05:21
Read Message   Re: ITBs & Port X-Sectional Areas + Lengths : Your Thoughts.... bbaacchhyyThu, 14 October 2004 05:32
Read Message   Re: ITBs & Port X-Sectional Areas + Lengths : Your Thoughts.... boxh34dThu, 14 October 2004 12:21
Read Message   Re: ITBs & Port X-Sectional Areas + Lengths : Your Thoughts.... ed_ma61Fri, 15 October 2004 00:22
Read Message   Re: ITBs & Port X-Sectional Areas + Lengths : Your Thoughts.... justcallmefrankFri, 15 October 2004 00:39
Read Message   Re: ITBs & Port X-Sectional Areas + Lengths : Your Thoughts.... mrshinThu, 14 October 2004 12:54
Read Message   Re: ITBs & Port X-Sectional Areas + Lengths : Your Thoughts.... RWDboyThu, 14 October 2004 14:51
Read Message   Re: ITBs & Port X-Sectional Areas + Lengths : Your Thoughts.... Bill SherwoodThu, 14 October 2004 15:17
Read Message   Re: ITBs & Port X-Sectional Areas + Lengths : Your Thoughts....  gianttomatoThu, 14 October 2004 21:25
Read Message   Re: ITBs & Port X-Sectional Areas + Lengths : Your Thoughts.... ed_ma61Thu, 14 October 2004 23:42
Read Message   Re: ITBs & Port X-Sectional Areas + Lengths : Your Thoughts.... ed_ma61Fri, 15 October 2004 00:33
Read Message   Re: ITBs & Port X-Sectional Areas + Lengths : Your Thoughts.... ed_ma61Fri, 15 October 2004 00:46
Read Message   Re: ITBs & Port X-Sectional Areas + Lengths : Your Thoughts.... justcallmefrankFri, 15 October 2004 00:50
Read Message   Re: ITBs & Port X-Sectional Areas + Lengths : Your Thoughts.... ed_ma61Fri, 15 October 2004 00:51
Read Message   Re: ITBs & Port X-Sectional Areas + Lengths : Your Thoughts.... justcallmefrankFri, 15 October 2004 00:56
Read Message   Re: ITBs & Port X-Sectional Areas + Lengths : Your Thoughts.... justcallmefrankFri, 15 October 2004 01:00
Read Message   Re: ITBs & Port X-Sectional Areas + Lengths : Your Thoughts.... ed_ma61Fri, 15 October 2004 02:35
Read Message   Re: ITBs & Port X-Sectional Areas + Lengths : Your Thoughts.... SupraPeteFri, 15 October 2004 02:55
Read Message   Re: ITBs & Port X-Sectional Areas + Lengths : Your Thoughts.... SupraPeteFri, 15 October 2004 02:45
Read Message   Re: ITBs & Port X-Sectional Areas + Lengths : Your Thoughts.... ed_ma61Fri, 15 October 2004 02:59
Read Message   Re: ITBs & Port X-Sectional Areas + Lengths : Your Thoughts.... ed_ma61Fri, 15 October 2004 03:01
Read Message   Re: ITBs & Port X-Sectional Areas + Lengths : Your Thoughts.... SupraPeteFri, 15 October 2004 03:11
Read Message   Re: ITBs & Port X-Sectional Areas + Lengths : Your Thoughts.... SupraPeteFri, 15 October 2004 03:21
Read Message   Re: ITBs & Port X-Sectional Areas + Lengths : Your Thoughts.... SupraPeteFri, 15 October 2004 03:14
Read Message   Re: ITBs & Port X-Sectional Areas + Lengths : Your Thoughts.... RWDboyFri, 15 October 2004 03:19
Read Message   Re: ITBs & Port X-Sectional Areas + Lengths : Your Thoughts.... ed_ma61Fri, 15 October 2004 03:26
Read Message   Re: ITBs & Port X-Sectional Areas + Lengths : Your Thoughts.... SupraPeteFri, 15 October 2004 03:28
Read Message   Re: ITBs & Port X-Sectional Areas + Lengths : Your Thoughts.... ed_ma61Fri, 15 October 2004 03:35
Read Message   Re: ITBs & Port X-Sectional Areas + Lengths : Your Thoughts.... gianttomatoFri, 15 October 2004 03:55
Read Message   Re: ITBs & Port X-Sectional Areas + Lengths : Your Thoughts.... Bill SherwoodFri, 15 October 2004 04:44
Read Message   Re: ITBs & Port X-Sectional Areas + Lengths : Your Thoughts.... ed_ma61Fri, 15 October 2004 04:50
Read Message   Re: ITBs & Port X-Sectional Areas + Lengths : Your Thoughts.... CelicaRA45Sat, 16 October 2004 03:38
Read Message   Re: ITBs & Port X-Sectional Areas + Lengths : Your Thoughts.... mrshinSat, 16 October 2004 13:30
Read Message   Re: ITBs & Port X-Sectional Areas + Lengths : Your Thoughts.... Bill SherwoodSat, 16 October 2004 13:55
Read Message   Re: ITBs & Port X-Sectional Areas + Lengths : Your Thoughts.... mrshinSat, 16 October 2004 14:37
Read Message   Re: ITBs & Port X-Sectional Areas + Lengths : Your Thoughts.... RWDboySun, 17 October 2004 08:29
Read Message   Re: ITBs & Port X-Sectional Areas + Lengths : Your Thoughts.... ed_ma61Sun, 17 October 2004 10:12
Read Message   Re: ITBs & Port X-Sectional Areas + Lengths : Your Thoughts.... RWDboySun, 17 October 2004 11:12
Read Message   Re: ITBs & Port X-Sectional Areas + Lengths : Your Thoughts.... ed_ma61Sun, 17 October 2004 12:13
Read Message   Re: ITBs & Port X-Sectional Areas + Lengths : Your Thoughts.... Bill SherwoodSun, 17 October 2004 13:19
Read Message   Re: ITBs & Port X-Sectional Areas + Lengths : Your Thoughts.... ed_ma61Sun, 17 October 2004 22:55
Read Message   Re: ITBs & Port X-Sectional Areas + Lengths : Your Thoughts.... Bill SherwoodMon, 18 October 2004 02:40
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