Guest Anonymous Posted March 11, 2002 Share Posted March 11, 2002 I have a 77 280z with intake, exhuast, high flow cat, headers, and MSD ignition with coil and wires. I also live in CA where I have to worry about smog crap. My question is, will any kind of performance cam work on my car and still let me pass smog. I talked to a local Z mechanic and he said to go to Isky. I talked to a guy there that seemed really knowledgable and he told me to get a 280 duration and 480 lift for good performance and that I would still pass smog. However I then talked to three different people about this cam and all said that I would have a hard time passing smog, even one guy said that he had a much milder cam than that and he still didn't pass smog. I just want to know once and for all which cam I can do, if any, so I can either do it or sell my car. I'm getting real tired of always having to worry about this smog crap and if I can't make my Z any faster because of smog I'll sell it and get a 240. Quote Link to comment Share on other sites More sharing options...
johnc Posted March 11, 2002 Share Posted March 11, 2002 I don't think anyone can give you a direct answer. You will have to install a cam and test it for yourself. There are too many variables involved to make a comparison with someone else's modified car. I do suggest that you look for a shorter duration cam, especially for a street car. The old Nissan Hi Perf cam (.434" lift 256 duration) is a great cam for a mild stock motor like yours. Anything more than that is really a waste unless you raise the compression and do some head work. Quote Link to comment Share on other sites More sharing options...
Guest Anonymous Posted March 16, 2002 Share Posted March 16, 2002 I have a smog lic. and I can say with that cam you will have some problems. It can be done. I spent the extra money and had the head opened up with bigger exhaust valves and a .495 lift and 280 duration. It was worth $1100 I spent. When it comes time for smog, find someone that has a clue and have them dyno your car to setup the right air/fuel ratio and to make sure the other smog stuff is working. After that get a brand new cat and you mite have to get one every 2 years. Those high flow cat's don't work that good so just get a big reguler one. If you need some advice email me at billyz@vlnk.net. Please do not ask me to do illegal stuff because I like to keep my smog lic. Billy Quote Link to comment Share on other sites More sharing options...
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