dat2kman Posted November 7, 2015 Posted November 7, 2015 Yes, three r four of them. What s the application? Do you intend to get t reground? Quote
theremm Posted November 7, 2015 Author Posted November 7, 2015 The cam lobes in my 240z are badly worn so need to replace. Don't want to spend money on aftermarket cam at this stage but I have read that the C grind cam from the 260z is slightly more aggressive so wanted to try one of them. Not intending to regrind or switch to internally oiled cam either Quote
dat2kman Posted November 7, 2015 Posted November 7, 2015 C cam,,, good luck! I'll go through ones here looking for any external oilers Quote
locklock Posted November 7, 2015 Posted November 7, 2015 I wanted a c cam too.. But got out bid.. sold on yahoo japan for 280usd.. Quote
theremm Posted November 7, 2015 Author Posted November 7, 2015 I thought C cams were on every L26 from the 260z? Quote
theremm Posted November 9, 2015 Author Posted November 9, 2015 I thought C cams were on every L26 from the 260z? ? Quote
locklock Posted November 9, 2015 Posted November 9, 2015 I read somewhere how c cam came about.. C cams only came for those early 260z, how many unit is unsure. Reason is nissan ran out of a cams during 260z production, so they use nismo cams temporarily. Not sure how true tho... Quote
dat2kman Posted November 9, 2015 Posted November 9, 2015 Nope C cam was done for non-USA market, as US were getting tough on emissions etc. The C grind was for the bigger weight 260's with the newer flat top carbs, to try to get their performance up to the levels of the early body, close ratio gearboxed 240Z cars, andsome cars got them for a period. Funnily, cams marked B were made after cams marked C, going by engine number sequence. Nissan were probably looking to imrove emssions and fuel economy in the 260Z as time went on. Later cams had no stamp at all. The A&B, along with unstamped ones can be reground to this "desired" grind, it is nothing special, clse to what is known as a 68 degree cam. You can also sneak a 72 degree cam grind onto a stock factory cam, but both require the BCD to be reduced. Was talking to a now retired cylinder head guy that did many L engines over many years. Alexander, the five I have here are all oiler cams, ( non spray bar type) Quote
theremm Posted November 10, 2015 Author Posted November 10, 2015 Nope C cam was done for non-USA market, as US were getting tough on emissions etc. The C grind was for the bigger weight 260's with the newer flat top carbs, to try to get their performance up to the levels of the early body, close ratio gearboxed 240Z cars, andsome cars got them for a period. Funnily, cams marked B were made after cams marked C, going by engine number sequence. Nissan were probably looking to imrove emssions and fuel economy in the 260Z as time went on. Later cams had no stamp at all. The A&B, along with unstamped ones can be reground to this "desired" grind, it is nothing special, clse to what is known as a 68 degree cam. You can also sneak a 72 degree cam grind onto a stock factory cam, but both require the BCD to be reduced. Was talking to a now retired cylinder head guy that did many L engines over many years. Alexander, the five I have here are all oiler cams, ( non spray bar type) So there doesn't seem to be a date when C cam production/use stopped definitively? Possibly used in some 2+2's? Locklock, I think in relation to your earlier comment RE price of the C cam on yahoo auctions, that this would be driven by the fact that japan and USA did not receive many of the L26 motors. Similarly, I commonly see L28 motors sell in japan for 1,500AUD + due to lack of availability as the Japanese market was restricted to 2.0L engine displacement until later production years. Quote
pauly_adams Posted November 10, 2015 Posted November 10, 2015 I have one or two C or C2 grind camshafts in the shed that are externally oiled, if you guys are paying that much im happy too sell them, as for performance my B4 grind camshaft is the best out for stock. I think so anyway Quote
dat2kman Posted November 10, 2015 Posted November 10, 2015 The Americans in their D or C Production Historic Z cars very much like the C grind cam, as their rules dictate they must run stock factory cam. Its not available in US delivered road cars, but comes up in factory part number listings ( not Nismo Comp option) and they can use whatever factory supplied. Its they that pay the big bucks!alex (OP) needs an undrilled cam, ie no holes on the lbe ramps, if he wished to, any stock undrilled cam can be given a bit of a regrind to match the slightly longer duration C grind. Specs for it are on the webs,,, Send it to Clive Cams, in Melbourne, highly recommended. Quote
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