Subject	bigger injectors = bigger pulsations
Posted by	aliaZ on February 24, 2008 at 10:15 AM
	This message has been viewed 198 times.
In Reply To	you may be right ...but it's important to note that the posted by The Devils Z on February 24, 2008 at 06:44 AM
Message	I don't know how much of a problem these pulsations are. You may have tuned out any fuel related issues that you *might* have, so a stable A/F doesn't really mean much. Some interesting reading: [ http://www.injector.com/fueldampers.php ] [ http://www.visteon.com/utils/whitepapers/2005_01_1149.pdf ]
Follow Ups	Is there a better way to run a parallel fuel setup? - collegeboy 09:15:12 02/22/08 Why do you need to run parallel? (n/m) - Woody75 (Denver) 09:19:30 02/22/08 it says so in the post: Because it "looked great". (n/m) - ZEngineer 09:20:31 02/22/08 high speed runs from one side of the garage to the other (n/m) - Guapo 09:21:30 02/22/08 So true. I need to get this puppy together. Can we say OCD? (n/m) - collegeboy 09:39:08 02/22/08 safety honestly - collegeboy 09:27:37 02/22/08 in Mike's setup, the fuel in the lines under the rails - Guapo 09:33:55 02/22/08 Thanks. (n/m) - collegeboy 09:36:08 02/22/08 Something like this?... - 240Z FeO2 10:54:23 02/22/08 yep (n/m) - Guapo 10:58:45 02/22/08 So you are saying... - Woody75 (Denver) 09:35:28 02/22/08 I have no valid proof or research of my own. - collegeboy 09:40:48 02/22/08 agreed - aliaZ 09:52:24 02/22/08 Really really really good point. Thanks Don. - collegeboy 10:00:14 02/22/08 True the FPR will see the pressure , but #6 will - AZHeat 11:22:02 02/22/08 I ran parallel on my stock fuel rails. With this set up - AZHeat 11:08:37 02/22/08 negligible imho - aliaZ 11:39:16 02/22/08 Re: negligible imho - Guapo 11:49:24 02/22/08 link isn't valid anymore (n/m) - 550HPTT 07:30:25 02/23/08 You can feel them. The frequency is so hi it doesn't - AZHeat 11:51:34 02/22/08 I think what you're feeling is the actual injector actuation - aliaZ 11:56:26 02/22/08 I see what you are saying. But the OEM runs a dampner - AZHeat 12:37:36 02/22/08 no reason you can't continue to run the damper - aliaZ 23:13:41 02/22/08 Interesting links - AZHeat 00:01:17 02/23/08 probably a good idea to run a damper no matter what config - aliaZ 00:53:21 02/23/08 I run no damper on mine with 850cc and aeromotive FPR. - The Devils Z 05:30:12 02/23/08 Re: I run no damper on mine with 850cc and aeromotive FPR. - lonloud 07:32:18 02/23/08 Mike is correct in that the injectors do cause pulsations - aliaZ 08:44:15 02/23/08 I believe either way should be fine.. MY THOUGHTS.. - Kong ZTT GT28RS MD 19:21:46 02/23/08 I have one fuel pressure gauge and two led lights / switches - The Devils Z 06:38:27 02/24/08 My two pumps run into one #8 AN line and split - AZHeat 11:13:37 02/24/08 I run no dampner on my 850's as well.. - Kong ZTT GT28RS MD 19:04:07 02/23/08 well...here's my thoughts - aliaZ 19:40:08 02/23/08 you may be right ...but it's important to note that the - The Devils Z 06:44:11 02/24/08 bigger injectors = bigger pulsations - aliaZ 10:15:44 02/24/08 I have absolutely no idling.. boosting etc issues.. - Kong ZTT GT28RS MD 20:14:47 02/24/08 It's probably waterhammer... - CaliguyPurdue (redesigning) 19:50:43 02/22/08 It wont fit with a sleeve. I have over 10k miles on my setup - whitepearlz 12:51:46 02/22/08 running a parallel fuel setup allowed Ash to better - The Devils Z 12:53:02 02/22/08 pics here - The Devils Z 16:33:17 02/22/08 I ran them to the back of the engine on top of the fuel rail - Magnum 14:42:43 02/22/08
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