Phyte Posted November 1, 2003 Share Posted November 1, 2003 I just bought a 74 260z with an 2.8L out of a 78(sellers information). He has put different carbs on it, but I have no idea what they are. It runs like crap now, so I need to tune it up. Problem is I have only a chevy background so all this is new to me. I couldn't locate on the carbs where to adjust the mixture. Its running WAY rich right now. You can smell gas driving 65. Plus it runs like crap. I know this engine has some decent potential. I've searched on tuning, but don't know what carbs these are.. help? Phyte Quote Link to comment Share on other sites More sharing options...
z-REX Posted November 1, 2003 Share Posted November 1, 2003 phyte... you just bought a car and only posted one pic? bad phyte!!!! kind of looks like he put back on the original 260 carbs, a cardinal sin that any z-owner should be shot for. if these are indeed the crappy emissions-optimized 74 carbs the first thing you need to do is use them for what they're worth.... and it's not for feeding an engine!!!! alot of people put early 240 carbs on and feel like they bought a new car. i had the same problems with my 74 carbs, bought a set of early su's, and subsequently changed my mind twice on the engine i was using. so.... i still have the carbs if this turns out to be the case and you're interested. i could use a little extra project money. hope that helps.... and congrats on the new car. at least a part of your life will never be the same........bob Quote Link to comment Share on other sites More sharing options...
Tim240z Posted November 1, 2003 Share Posted November 1, 2003 Hmmmm... a Chevy man huh...drop a chevy V8 in that thing and that will solve your tune up problems. Tim Quote Link to comment Share on other sites More sharing options...
z-REX Posted November 1, 2003 Share Posted November 1, 2003 hmmm.... the chevy v8 fix on a shty running 260z? wild concept..... and a damn good idea!!!! Quote Link to comment Share on other sites More sharing options...
akeizm Posted November 1, 2003 Share Posted November 1, 2003 Ohh man, if they are the original 260z carbies I feel your pain. As drax said to me, there the same as boat anchors. I'm looking at getting rid of mine quick smart. The sad part is, if they are the original 260z carbs, there is no easy way to tune them. Quote Link to comment Share on other sites More sharing options...
Phyte Posted November 1, 2003 Author Share Posted November 1, 2003 Hmmmm... a Chevy man huh...drop a chevy V8 in that thing and that will solve your tune up problems. Tim Oh trust me' date=' and LT1 and 6 speed will be going in after the new year. I just want to get this engine running decent until then. You want pics huh.. I got your pics It looks a little purple in the pics(crappy digital), but its slate. More here - http://www.sitesfor.com/Z/ [img']http://www.sitesfor.com/Z/slatez.jpg[/img] Quote Link to comment Share on other sites More sharing options...
Dayz Posted November 1, 2003 Share Posted November 1, 2003 Nice car Phyte !! I' ll go with everyone else, put some early 240z carbs like those (with the round top): http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&item=2440047179&category=33550 Check your head before !! But those carbs get rid of the anti-polution and are very easy to tune!! I did that and I am an happy guy and they look so clean. Dayz Quote Link to comment Share on other sites More sharing options...
Phyte Posted November 1, 2003 Author Share Posted November 1, 2003 Nice car Phyte !! I' ll go with everyone else' date=' put some early 240z carbs like those (with the round top): http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&item=2440047179&category=33550 Check your head before !! But those carbs get rid of the anti-polution and are very easy to tune!! I did that and I am an happy guy and they look so clean. Dayz[/quote'] Thanks! I got it at a really good price. He gave me these carbs with the car. I would of figured this one is the original 260 carbs. He put in a L28 from a 78? What is this carb? Quote Link to comment Share on other sites More sharing options...
Guest Nic-Rebel450CA Posted November 1, 2003 Share Posted November 1, 2003 the first carbs are flat tops. those are regarded as potentially good paper-weights except for the fact that they leak fuel too much the second set of carbs that you just posted pics of are round tops and are much better. I just rebuilt mine for $30 total and they run great! Quote Link to comment Share on other sites More sharing options...
Dayz Posted November 1, 2003 Share Posted November 1, 2003 Those second set you have are the first gen of carbs, before 72 1/2. Use those. they are the one I'm talking about. No emissino stuff less proble. If you have 2, put them on now...Have fun Dayz Quote Link to comment Share on other sites More sharing options...
Phyte Posted November 1, 2003 Author Share Posted November 1, 2003 Those second set you have are the first gen of carbs' date=' before 72 1/2. Use those. they are the one I'm talking about. No emissino stuff less proble. If you have 2, put them on now...Have fun Dayz[/quote'] I got two! I'll be putting those on soon then after a rebuild. Where can a get a rebuild kit for them?? Thanks much guys. Phyte Quote Link to comment Share on other sites More sharing options...
z-REX Posted November 1, 2003 Share Posted November 1, 2003 nice car phyte!!!!!!! reminds me of the body kit my 78 had, except your car's much cleaner. it's damn nice to have a solid place to start from! Quote Link to comment Share on other sites More sharing options...
z-REX Posted November 1, 2003 Share Posted November 1, 2003 check ztherapy for the rebuild kits. they know su's like grumpyvette knows chevys. Quote Link to comment Share on other sites More sharing options...
Guest Nic-Rebel450CA Posted November 2, 2003 Share Posted November 2, 2003 Ztherapy sells the rebuild kits for way more than they are worth. You can get rebuild kits from Kragen auto parts (as well as probably a number of other auto parts stores) for about $15 each. (As opposed to Ztherapy's $50 or so each) Quote Link to comment Share on other sites More sharing options...
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