Cam and compression ratio compatibility
| Line 5: | Line 5: | ||
On the other hand, it's equally as foolish to install a short cam into a motor with a fairly high static compression ratio. You get into an area of such high cylinder pressure that no fuel short of alcohol or racing gasoline will prevent detonation. | On the other hand, it's equally as foolish to install a short cam into a motor with a fairly high static compression ratio. You get into an area of such high cylinder pressure that no fuel short of alcohol or racing gasoline will prevent detonation. | ||
| − | You can move 1/2 point of SCR either way and be in the ballpark. In other words, if you have a 9.00:1 motor and you want a little more cam, you can move up to a cam that would be used in a 9.5:1 motor and be ok. On the other hand, if you wanted to go with a little less cam, you might use 1/2 point the other way, down to an 8.50:1 cam. | + | You can move 1/2 point of SCR either way and be in the ballpark. In other words, if you have a 9.00:1 motor and you want a little more cam, you can move up to a cam that would be used in a 9.5:1 motor and be ok. On the other hand, if you wanted to go with a little less cam, you might use 1/2 point the other way, down to an 8.50:1 cam. |
| + | |||
| + | Here's what Crane has to say about it.... | ||
| + | http://www.cranecams.com/faqview.php?s_id=9 | ||
Your Privacy Choices