Adam B Posted April 22, 2015 Share Posted April 22, 2015 Hi all, I own a 2005 350z @ 95000miles Fitted a manifold back exhaust and ever since I get a large puff of blue smoke (oil) when blipping throttle in neutral or when pulling away from a junction after coasting to a stop. Doesnt happen all the time though. I am leaning toward breather system but wanted to check if anyones had similar issues. Thanks Quote Link to comment Share on other sites More sharing options...
Keyser Posted April 22, 2015 Share Posted April 22, 2015 Is it now a decat system? The Cats may have been helping stop the smoke. Quote Link to comment Share on other sites More sharing options...
Adam B Posted April 22, 2015 Author Share Posted April 22, 2015 very well could of been, yes now a straight through. Quote Link to comment Share on other sites More sharing options...
ZMANALEX Posted April 23, 2015 Share Posted April 23, 2015 very well could of been, yes now a straight through. You have answered your own question. Quote Link to comment Share on other sites More sharing options...
Adam B Posted April 23, 2015 Author Share Posted April 23, 2015 Lol, not quite what I meant. What causes this sudden puff?. Is there a way to eliminate it?. Is it wise to upgrade the OEM breather system to cope. Or, in all likelyhood my rings are shot and I`m doomed? Sorry should of worded it that way first time. Quote Link to comment Share on other sites More sharing options...
a2orry Posted April 23, 2015 Share Posted April 23, 2015 It's part of the maintenance on z engines that you change the breather value off the top of my head its 74000 service that it gets done .Make sure you keep an eye on the oil level . Quote Link to comment Share on other sites More sharing options...
ZMANALEX Posted April 23, 2015 Share Posted April 23, 2015 When you removed the oem cats you also created a passage for the oil to exit. You did not see it before because the oem cats burnt it up. At 95k I suspect that you will be using a bit of oil However you will be using the same amount of oil as before and if that was not excessive then all will be good. Quote Link to comment Share on other sites More sharing options...
nissanman312 Posted April 23, 2015 Share Posted April 23, 2015 I should expect the same on my 370z then now decat. ......and a supercharger Quote Link to comment Share on other sites More sharing options...
Keyser Posted April 23, 2015 Share Posted April 23, 2015 I should expect the same on my 370z then now decat. ......and a supercharger Yep - get the odd little puff from mine Quote Link to comment Share on other sites More sharing options...
spursmaddave Posted April 24, 2015 Share Posted April 24, 2015 I should expect the same on my 370z then now decat. ......and a supercharger Yep - get the odd little puff from mine I wouldn't call Bob little..... 1 Quote Link to comment Share on other sites More sharing options...
Adam B Posted April 24, 2015 Author Share Posted April 24, 2015 Thanks, 12hr nights so my thinking cap wasn`t on. Was a little paranoid as blue smoke is never a good sign. Cheers Quote Link to comment Share on other sites More sharing options...
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