^ I would guess this is the case, as I don't have a FRS and can't hear them in the cabin. However, it is noticeably louder than stock under the hood (the injectors ticking).

 

The stock dampener is removed because I have a CJM Stage 0 RFS. My fuel regulator is mounted to the firewall (where CJM recommends). I think the reason why I can hear them so much is because:

A: The regulator is mounted to the firewall
B: My exhaust it whisper quiet at idle
C: I removed the engine cover
D: I am ****

I can't hear the clicking while driving, only at idle with eveything (A/C, stereo, etc.) turned off.

Sometime in the future I would like to try bracketing the regulator to the engine instead of the firewall to see if it helps. That and swapping out the EVO2 for an EVOTT

 

I can't hear the "fuel System" on mine. But I can definately hear the injectors when the hood is up. I have rc1000's (I believe they are RC, my brain hurts today so can't remember).

1 reason you may hear the clicking of them is the batch firing. I do believe almost all the EMS's still use the batch firing of the injectors. So you have more than 1 injector firing at a time, which just adds to the noise. I know the pro-efi 48 does batch but the pro-efi 128 does individual injectors, and I'm not sure on the haltech or Vipec.

just a thought.

tom

 

open wastegate dumps helps as well.

 

When I was visiting San Diego and stopped by SFR to check out some of their work, they had their regulators mounted directly to one of the fuel rails rather than using a hose and putting it elsewhere. Looked pretty clean and I bet it doesn't have the ugly sound inside the car.

 

I have the same noise and it only started after my RFS (with Aeromotive FPR mounted to firewall) was installed. I thought the noise went away after I changed my oil, but it returned. Now I know where it is coming from. I use DW 600cc's as well

 

I have an update on this subject!

Since it is winter here in Michigan and the G is going nowhere fast, I decided to spend some time modeling the plenum and Aeromotive FPR in order to design a bracket which would mount the FPR to the plenum rather than the firewall. I fabricated the bracket and bolted it together last night. I started the car and let it warm up so the idle would come down and guess what...no more ticking sound! The sound of "flowing fuel" was also greatly reduced. The only thing I can hear now is the exhaust, a slight fuel pump whine, and a very quiet sound of the fuel being returned to the tank.

I had to turn the regulator 180 degrees so that the mounting holes would be on the other side, which is why the fitting for the fuel line is shown on the wrong side in the pictures. All I had to do was switch the fitting and the plug so that the fuel would enter on the other side of the regulator.

I don't have any pictures of the actual piece yet but here is a couple CAD screenshots of the bracket. I made it out of .093" stainless and polished it to a mirror finish...it looks sweet!

 

Nice fabrication work. Out of curiosity, how much fuel spills out when disconnecting that line (with the car off of course).

 

Nice work, I also mounted my to the plenum. I had to because all my lines are aluminum, so no flexing allowed. My setup is a bit simpler though, just some aluminum twisted 180deg:

http://i137.photobucket.com/albums/q...E/S1031232.jpg

http://i137.photobucket.com/albums/q...E/S1031231.jpg

http://i137.photobucket.com/albums/q...E/S1031248.jpg

 

Not too much really, maybe an ounce or so.