Subject	Why not just run less aggressive timing to lower
Posted by	The Devils Z on February 20, 2015 at 8:14 AM
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In Reply To	Rod bearing service life:a long-term review of my experience posted by Ash's Z on February 20, 2015 at 06:24 AM
Message	cylinder temps and rule that out ? Do you have more data that you have not shared ? Your issue could also be a function of ignition timing / high RPM on that particular cylinder. Why not get a knock box and confirm that you don't have any detonation ? Tail tale sign is the piston skirt issue you stated about - this can't be do oil starvation. At the minimum - run EGTS on both banks for data w/memory peak hold. I postulate - "If you reduce ignition timing on your programs you will have less bearing issues." At the minimum, get a knock box and confirm conjecture rule out other possibilities w/data. Knock box is cheaper than swapping bearing every 20k miles. Additionally, what you are doing by shimming the oil pump pressure relief valve ..based on what I am reading ..can't be good at cold start up when most of us let the Z warm up at idle before driving / raising RPMs. I know this is going to sting, so hopefully you don't get your panties in a bunch .... What confidence would you have in a Z shop that can't keep their own motor together ? "the absence of evidence does not confirm that evidence is absent" =============Sig begins here================ The Devils Z.com 800 rwhp dyno View Me! Disclaimer : Not Safe For Work ! Kid :" Those old guys drive that way ?" Witness : "Yeah, I rode behind them at ZNationals 2010 on these back roads leaving the track day and they were foot in. They ran into the curves w/no brakes and didn't lift!" - Hampton Inn parking lot at ZNationals 2011 -
Follow Ups	Rod bearing service life:a long-term review of my experience - Ash's Z 06:24:41 02/20/15 Why not just run less aggressive timing to lower - The Devils Z 08:14:52 02/20/15 I've been running 18 degrees of total advance at full load - Ash's Z 11:54:37 02/20/15 You can have gradual detonation without hurting - The Devils Z 19:26:49 02/20/15 i use the JS knock box you can hear knock that you can not - Dane (Houston) 18:52:13 02/23/15 Re: Mobil 1 - Hiram 08:40:41 02/20/15 Hmm. (n/m) - BannonZ 09:02:53 02/20/15 I dont think Ash mentioned anything about the EP oil - ZXoltan 10:44:19 02/20/15 C&D Recommends Changing Your Oil at Least Twice a Year - flashstar 11:53:40 02/20/15 You're correct. Oil's life is measured not only by mileage, - Hiram 00:11:56 02/21/15 I change the engine oil every 3K miles bud. Keep in mind, - Ash's Z 11:57:26 02/20/15 Wear could be worse on the 6th in general but good oil - flashstar 12:01:30 02/20/15 So if Mobil 1 15K mile oil falls back to a manufacturer's - Hiram 13:37:49 02/20/15 people say all sorts of crap based on nothing but suspicion (n/m) - LJZTT 13:52:49 02/20/15 Truth! (n/m) - Barry (NJ) 14:20:06 02/20/15 my life at work .. probably the best comment I have - The Devils Z 19:20:22 02/20/15 I would quit a job like that, lol (n/m) - Hiram 23:47:28 02/20/15 I wouldn't deny someone's experience with a product, but - Hiram 00:02:18 02/21/15 it has nothing to do with fine print vs marketing print - LJZTT 13:11:42 02/22/15 I will tell them to tell their mechanics what you said. (n/m) - Hiram 02:21:30 02/26/15 Like I said, best of luck :) (n/m) - Hiram 13:41:37 02/20/15 BTW, I'm not using Extended Performance lube. (n/m) - Ash's Z 16:15:27 02/20/15 Understood. Good luck with it. (n/m) - Hiram 23:48:16 02/20/15 Do you know if shimming the oil pump pressure relief valve - ZXRider 10:47:52 02/20/15 There was no indication of that being the case. I caught - Ash's Z 15:27:57 02/20/15 Do you think this feeds back to #6 running hotter? - Schmeal (NV) 11:05:23 02/20/15 Your proposal is based on piston sieze which I am sure is - Ash's Z 16:18:57 02/20/15 One of the best "knock boxes" out there... - kickerzx 17:53:30 02/20/15 Like the post and timely.... - Z ONLY1 11:11:25 02/20/15 Is your OEM knock control in spec? - zromtech 11:48:05 02/20/15 even if this is true - the OEM knock control only works - The Devils Z 19:15:35 02/20/15 His thread on the subject back in 2013... - Ted (92TT) 20:26:13 02/20/15 Re: even if this is true - the OEM knock control only works - zromtech 11:08:16 02/21/15 Interesting - maglito 21:51:36 02/23/15 What EMS? - bartz32tt 12:06:06 02/20/15 Which EMS can write specifically to an individual injector?? (n/m) - RZturbo 20:41:28 02/20/15 Most decent ones can... (n/m) - kickerzx 05:45:08 02/21/15 Do you have a UOA done at each oil change? - Tanley 18:49:33 02/20/15 I run 20W50 - RZturbo 20:54:40 02/20/15 Do you run 20W50 in the winter also? (n/m) - sak01 11:02:20 02/21/15 The z is normally garaged - RZturbo 20:35:26 02/21/15 I really like M1 5w50 (n/m) - Polish 02:33:21 02/22/15 Re: Rod bearing service life:a long-term review of my experience - Bigwill837 08:25:10 02/21/15 You went with 0.0015" bearing clearance - -Grimm- 09:56:13 02/21/15 seems a bit tight to me - aliaZ 17:43:19 02/22/15 2nd (n/m) - John (MD) 15:36:57 03/01/15 Ash, exactly which oil are you using? Any sampling? - SMAZ (OKC) 12:23:50 02/22/15 Thanks for sharing your findings Ash! (n/m) - maglito 21:52:47 02/23/15
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