Subject	Mike is correct in that the injectors do cause pulsations
Posted by	aliaZ on February 23, 2008 at 8:44 AM
	This message has been viewed 107 times.
In Reply To	Re: I run no damper on mine with 850cc and aeromotive FPR. posted by lonloud on February 23, 2008 at 07:32 AM
Message	in the rail. Hard to say if this is a problem without measuring the fuel pressure inside the rail itself at WOT. It is also hard to say running parallel vs serial causes any changes in the intensity of these pulsations without measuring them.
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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