Subject	Actually one slot = 2 CRANK degrees (1 cam degree)
Posted by	kickerzx on October 22, 2014 at 3:29 PM
	This message has been viewed 384 times.
In Reply To	Ok. I'm convinced. The stock CAS setup is sub-optimum. posted by OverZealous (CT) on October 22, 2014 at 03:02 PM
Message	One thing im not sure of is exactly HOW the stock ecu interprets the triggerdisk. What the algorythm is. I dont think it uses every slot to time the ignition. It might use the six "other" slots in a way i dont know about. Or it may think somethings in the line of - ONE, two, three, four, five, six, seven, EIGHT, nine, ten.... and so on, where actually only hole one and eight is used to calculate degrees and timing point. Some ecus do this but i dont know how the stock one "thinks". If it does something along those lines it would smooth out the "lines" in logs. However the problem is twofold. One is that the ecus read the numbers weirdly causing the ragged line in teh logs. If you install an AEM disk (with an aftermarket ecu) and run of it the log would probably read straight. But the other problem is still there. The AEM disk log just hides it from the eye. The second problem is the actual mechanical irregularities between the cam and crank. It will still be there causing timingscatter. The ecu just dont notice it I know i would love to get my hands on the Nissan tech paper on the CAS, i can tell you that...
Follow Ups	Crank trigger vs CAS logs. - kickerzx 13:58:03 10/21/14 You do know Vipec = Link, right? - dogpile 14:15:06 10/21/14 They are made by the same manufcturer and the - kickerzx 14:27:52 10/21/14 I know, I have experience with both. (n/m) - dogpile 14:50:55 10/21/14 Wow, what a difference. - bartz32tt 14:16:02 10/21/14 The after log is using the crankmounted trigger along - kickerzx 14:39:40 10/21/14 Yea, I was going to dl their software too - bartz32tt 14:59:47 10/21/14 FYI, they responded - bartz32tt 14:25:54 10/22/14 Looking at the plug-in software that is not correct. - kickerzx 07:47:13 10/24/14 Do you have a picture of your setup? (n/m) - -Grimm- 14:20:55 10/21/14 Sure - kickerzx 14:41:04 10/21/14 slick... - Madhatter10-6 15:39:50 10/21/14 The triggerwheel is integrated into the damper. - kickerzx 16:14:26 10/21/14 Closeup. - kickerzx 16:15:52 10/21/14 Whoops. Here is the right one. - kickerzx 16:17:59 10/21/14 The stock CAS setup is VERY sensitive for sure - OverZealous (CT) 22:40:44 10/21/14 Tho im not trying convince anyone, but since - kickerzx 11:49:46 10/22/14 Re: Tho im not trying convince anyone, but since - lostsoul 14:27:02 10/22/14 Dont trust your UD pully no more? ;) - kickerzx 14:57:31 10/22/14 Ok. I'm convinced. The stock CAS setup is sub-optimum. - OverZealous (CT) 15:02:36 10/22/14 Actually one slot = 2 CRANK degrees (1 cam degree) - kickerzx 15:29:07 10/22/14 that may be one reason they use the cam, it turns at - not4resaleZ 17:42:07 10/22/14 nice (n/m) - toykoz32 10:04:48 10/22/14 Tokyo, you need to take a day of from work to fix your sig - kickerzx 11:53:57 10/22/14 Lol, will do (n/m) - toykoz32 12:44:23 10/22/14 is there a reason you didn't use a 36-1 trigger wheel? - aliaZ 21:23:23 10/22/14 Bet you were looking for a short answer here? Not happening! - kickerzx 14:11:42 10/23/14
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