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Cams Rating
System
Performance Rank Explained - The
higher the number, the more performance potential. The 'L' nomenclature was
coined to allow for ranking between existing higher Performance Rank numbers.
(Using a letter sounded better than saying '1/2'.) The 'L' is a design based on
the root number, with emphasis on Low End power. Performance Rank applies to
lobe design, not the number of cylinders or applications.
| Rank 1 |
1300 Normal |
| Rank 2 |
1600 Normal |
| Rank 3 |
USA Spica |
| Rank 4 |
1600 Carb'd |
| Rank 5 |
2000 Euro,
(105480320001) |
| Rank 6 |
1300 Veloce |
| Rank 7 |
1600 Veloce |
| Rank 7L |
Similar to Rank 7
w/emphasis on LOW END power |
| Rank 8 |
Extension of 1600 Veloce
philosophy, for larger engines |
| Rank 8L |
Similar to Rank 8
w/emphasis on LOW END power |
| Rank 9 |
No longer used (Was a
specific Autodelta cam) |
| Rank 10 |
Equivalent to an old
(1960's) 10.5 Autodelta grind |
| Rank 1OL |
Similar to Rank 10
w/emphasis on LOW END power |
| Rank 11 |
No longer used (Was a
specific Autodelta cam) |
| Rank 12 |
No longer used (Was a
specific Autodelta cam) |
| Rank 13 |
Race cams for larger
engines, power to 8000* |
| Rank 13L |
Race cams for smaller engines, power to 7600* |
* It's difficult to put racing cams
into a nice, neat pigeonhole. Power bands, performance characteristics, and max
power are dependent on the total package the user has brought together; these
are general max redline. "Yours may vary."
- Tom Sahines
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