discopotato03 Posted March 30, 2009 Share Posted March 30, 2009 Hi all , from the 87 Factory WSM it shows slightly better turbo cams under "others" rather than Australian or Swizerland/Sweden/Austria catalyst equipt model . The "other" spec EA82T cams are 12-58 60-16 valve timing rather than the usual 14-56 56-14 factory turbo cams . The usual T cams have the A01 ID marks on them and "other" spec ones are A11 , 01 and 11 meaning ID rings or grooves machined into the shaft (behind the second lobe from the front) . From the above numbers the slightly warmer cams have the inlet timing advanced 2 degrees and an extra 6 degrees on the exhaust side ie open 2 degrees earlier and close 4 degrees later . Probably trivial but their exhaust lobes also have a whole extra 6 thou of lift over their inlets , which are the same as the usual T cams both sides . I don't suppose anyone has these cams and is willing to sell them ? Good payer , cheers Adrian in Australia . Link to comment Share on other sites More sharing options...
joostvdw Posted March 30, 2009 Share Posted March 30, 2009 Are the "other" type camshaft with or without the groove cut behind the second lobe? you can barely see it on this picture, but there is a groove behind the second lobe Sorry, these also aren't for sale, I highly doubt it would run without camshafts Link to comment Share on other sites More sharing options...
discopotato03 Posted March 30, 2009 Author Share Posted March 30, 2009 Behind the second lobe is the smallest section of the camshaft , this is the "B" ID section . The camshaft steps up to the normal size behind this and this is the "C" ID section of the camshaft - before the 3rd lobe . So you have an A B and C ID section . All these cams have "A" stamped in front of the first lobe , the B section has either 1 or 0 grooves and the C section can have 1 2 or 3 grooves . The "catalyst" spec cams have A , 0 , 1 . The "other" spec cams have A , 1 , 1 . I think they are in some Euro spec engines , the ones that didn't have a 2nd cat in the tail pipe behind the spring loaded swivel joint . A . Link to comment Share on other sites More sharing options...
Turbone Posted March 30, 2009 Share Posted March 30, 2009 I bet Delta Cam could make you a set of these. You have all the specs for it, just give them a email and see what they say. jonneyblaze69 @ aol . com Link to comment Share on other sites More sharing options...
nncoolg Posted October 23, 2009 Share Posted October 23, 2009 ...does anyone know what profile the A-1-2 cams are? thanks. Link to comment Share on other sites More sharing options...
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