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The Terminator
Engine/Tuning
Degreeing my cams and my left intake is late 12*
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<blockquote data-quote="Happster" data-source="post: 16280066" data-attributes="member: 76076"><p>Thanks 03! My cam card doesn't list lobe separation. It has:</p><p></p><p><u>Intake</u></p><p><u></u></p><p>Advertised duration at .006 is 258, duration at .050 it is 222. Opens .050 at 3* BBDC, closes at 45* ATDC.</p><p></p><p><u>Exhaust</u></p><p></p><p>Advertised duration at .006 is 260, duration at .050 it is 224. Opens .050 at 50* BBDC, closes at 6* ATDC.</p><p></p><p>I'll go back and spec out these valve events. One strange thing is that the specs on the cards are listed as being for 118* centerline exhaust, 114* for intake. (So LSA is 116*?). Comp cams said that was an error and they should all be set at 114* centerline. That was a bit concerning that they are banging out cam cards with errors like that. (There were typos abound too, with all four cards having a header "left exhaust". I had to use the part number suffixes, LI, RI, LE to RE, figure out which were which.) But maybe there is something there? I asked Comp to explain and the tech said he's dialed in cams on these motors hundreds of times and always uses 114* across the board for street applications on mid-range cams. I was still a little uneasy with this explanation. Thoughts are welcome.</p><p></p><p>Two thoughts... First, the right side came in at 114 for both. Second, that my intake is late. If I bump the exhaust from 114 to 118, I'd expect my intake to bump likewise to 124. As I mentioned, right now I'm at 120 cheating with the slop in the keyways as much as possible. There is no other way to adjust the intake beyond filing the key that I am aware of.</p></blockquote><p></p>
[QUOTE="Happster, post: 16280066, member: 76076"] Thanks 03! My cam card doesn't list lobe separation. It has: [U]Intake [/U] Advertised duration at .006 is 258, duration at .050 it is 222. Opens .050 at 3* BBDC, closes at 45* ATDC. [U]Exhaust[/U] Advertised duration at .006 is 260, duration at .050 it is 224. Opens .050 at 50* BBDC, closes at 6* ATDC. I'll go back and spec out these valve events. One strange thing is that the specs on the cards are listed as being for 118* centerline exhaust, 114* for intake. (So LSA is 116*?). Comp cams said that was an error and they should all be set at 114* centerline. That was a bit concerning that they are banging out cam cards with errors like that. (There were typos abound too, with all four cards having a header "left exhaust". I had to use the part number suffixes, LI, RI, LE to RE, figure out which were which.) But maybe there is something there? I asked Comp to explain and the tech said he's dialed in cams on these motors hundreds of times and always uses 114* across the board for street applications on mid-range cams. I was still a little uneasy with this explanation. Thoughts are welcome. Two thoughts... First, the right side came in at 114 for both. Second, that my intake is late. If I bump the exhaust from 114 to 118, I'd expect my intake to bump likewise to 124. As I mentioned, right now I'm at 120 cheating with the slop in the keyways as much as possible. There is no other way to adjust the intake beyond filing the key that I am aware of. [/QUOTE]
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Degreeing my cams and my left intake is late 12*
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