[phpBB Debug] PHP Warning: in file [ROOT]/phpbb/db/driver/mysqli.php on line 258: mysqli_fetch_assoc(): Couldn't fetch mysqli_result [phpBB Debug] PHP Warning: in file [ROOT]/phpbb/db/driver/mysqli.php on line 320: mysqli_free_result(): Couldn't fetch mysqli_result [phpBB Debug] PHP Warning: in file [ROOT]/includes/functions.php on line 4433: Cannot modify header information - headers already sent by (output started at [ROOT]/includes/functions.php:3315) [phpBB Debug] PHP Warning: in file [ROOT]/includes/functions.php on line 4433: Cannot modify header information - headers already sent by (output started at [ROOT]/includes/functions.php:3315) [phpBB Debug] PHP Warning: in file [ROOT]/includes/functions.php on line 4433: Cannot modify header information - headers already sent by (output started at [ROOT]/includes/functions.php:3315) [phpBB Debug] PHP Warning: in file [ROOT]/includes/functions.php on line 4433: Cannot modify header information - headers already sent by (output started at [ROOT]/includes/functions.php:3315) [phpBB Debug] PHP Warning: in file [ROOT]/phpbb/db/driver/mysqli.php on line 258: mysqli_fetch_assoc(): Couldn't fetch mysqli_result [phpBB Debug] PHP Warning: in file [ROOT]/phpbb/db/driver/mysqli.php on line 320: mysqli_free_result(): Couldn't fetch mysqli_result rusefi.com • high speed video of engine combustion
I saw that a few days back. Even for a sidevalve engine that doesn't look like a representative combustion chamber. If you look online you will probably be able to find videos of the sort of engines that the manufacturers use that have crystal cylinders - very expensive! You can see why the old side-valves were very inefficient - there are large areas of unburnt fuel.