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| Perhaps the most interesting variety of A series engines was the [[AY12]] engine. This was a special race-only Nissan factory ([[works]]) racing version with a [[wikipedia:Crossflow cylinder head|crossflow cylinder head]]. | Perhaps the most interesting variety of A series engines was the [[AY12]] engine. This was a special race-only Nissan factory ([[works]]) racing version with a [[wikipedia:Crossflow cylinder head|crossflow cylinder head]]. | ||
| + | = Overview = | ||
| [http://datsun1200.com/modules/myalbum/photo.php?lid=2521 http://datsun1200.com/modules/myalbum/photos/thumbs/2521.jpg] [http://datsun1200.com/modules/myalbum/photo.php?lid=449 http://datsun1200.com/modules/myalbum/photos/thumbs/449.jpg] | [http://datsun1200.com/modules/myalbum/photo.php?lid=2521 http://datsun1200.com/modules/myalbum/photos/thumbs/2521.jpg] [http://datsun1200.com/modules/myalbum/photo.php?lid=449 http://datsun1200.com/modules/myalbum/photos/thumbs/449.jpg] | ||
| AY12 was used in under-1300cc class racing with 76 to 76.8mm pistons. Intake valve was 40-41mm and exhaust valves that have been used are 33mm and 34mm. The piston was also special design. Because of the hemi combustion chamber, the pushrod-activated valve rocker system was different from the regular A12. | AY12 was used in under-1300cc class racing with 76 to 76.8mm pistons. Intake valve was 40-41mm and exhaust valves that have been used are 33mm and 34mm. The piston was also special design. Because of the hemi combustion chamber, the pushrod-activated valve rocker system was different from the regular A12. | ||
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| + | Oiler | ||
| + | <br>http://i238.photobucket.com/albums/ff99/ianey89/AY%20Head/th_E64F0468.jpg | ||
| + | |||
| + | = Photos = | ||
| + | [http://i238.photobucket.com/albums/ff99/ianey89/AY%20Head/E64F0464.jpg http://i238.photobucket.com/albums/ff99/ianey89/AY%20Head/th_E64F0464.jpg] [http://i238.photobucket.com/albums/ff99/ianey89/AY%20Head/E64F0465.jpg http://i238.photobucket.com/albums/ff99/ianey89/AY%20Head/th_E64F0465.jpg] [http://i238.photobucket.com/albums/ff99/ianey89/AY%20Head/E64F0467.jpg http://i238.photobucket.com/albums/ff99/ianey89/AY%20Head/th_E64F0467.jpg] [http://i238.photobucket.com/albums/ff99/ianey89/AY%20Head/E64F0468.jpg http://i238.photobucket.com/albums/ff99/ianey89/AY%20Head/th_E64F0468.jpg] | ||
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| + | [http://i11.photobucket.com/albums/a164/KB10/69c391dd.jpg http://i11.photobucket.com/albums/a164/KB10/th_69c391dd.jpg] [http://i11.photobucket.com/albums/a164/KB10/45feeceb.jpg http://i11.photobucket.com/albums/a164/KB10/th_45feeceb.jpg] | ||
| [[Category:Engine]] | [[Category:Engine]] | ||
Revision as of 03:02, 6 January 2012
Perhaps the most interesting variety of A series engines was the AY12 engine. This was a special race-only Nissan factory (works) racing version with a crossflow cylinder head.
Overview
AY12 was used in under-1300cc class racing with 76 to 76.8mm pistons. Intake valve was 40-41mm and exhaust valves that have been used are 33mm and 34mm. The piston was also special design. Because of the hemi combustion chamber, the pushrod-activated valve rocker system was different from the regular A12.
Oiler
Photos
