Camshaft tech by Dimitri Elgin
From Crankshaft Coalition Wiki
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The following text was written by Dimitri N. "Dema" Elgin, of Elgin Industries, in response to the numerous requests for info on the subject of camshaft selection. It was originally offered for publication in the ''Chapman Report''. | The following text was written by Dimitri N. "Dema" Elgin, of Elgin Industries, in response to the numerous requests for info on the subject of camshaft selection. It was originally offered for publication in the ''Chapman Report''. | ||
− | Part 3 is written with the [http://en.wikipedia.org/wiki/Lotus-Ford_Twin_Cam '''Lotus/Ford Twin Cam engine'''] in mind, but the reader will be rewarded by looking beyond the type/size of the engine and instead look at the | + | Part 3 is written with the [http://en.wikipedia.org/wiki/Lotus-Ford_Twin_Cam '''Lotus/Ford Twin Cam engine'''] in mind, but the reader will be rewarded by looking beyond the type/size of the engine and instead look at the principles involved. |
==Part 1 -- The Basics== | ==Part 1 -- The Basics== | ||
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===The four timing events=== | ===The four timing events=== | ||
− | Let us now take the four timing events and put them in order of importance. | + | Let us now take the four timing events and put them in reverse order of importance. |
====Exhaust valve opening==== | ====Exhaust valve opening==== | ||
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</tr> | </tr> | ||
<tr bgcolor="#F1F1F1"> | <tr bgcolor="#F1F1F1"> | ||
− | <td width="147"><font face="Arial">Brian Hart</font></td> | + | <td width="147"><font face="Arial">Brian Hart-built</font></td> |
<td align="CENTER" width="130"><font face="Arial">1.690</font></td> | <td align="CENTER" width="130"><font face="Arial">1.690</font></td> | ||
<td align="CENTER" width="127"><font face="Arial">1.44</font></td> | <td align="CENTER" width="127"><font face="Arial">1.44</font></td> |