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mlomker
06-03-2010, 07:48 PM
Shane was able to figure out my power window problem. Woot! Now we're just down to that pesky fuel issue.

I just ordered $100 worth of fittings from Jegs for plumbing in my Aeromotive afpr. Not sure if I ordered all of the correct stuff...it's not the easiest task, especially without the car here at home to measure stuff. We will see!

Are you the local guy who bought our hanger and had it shipped to blaqops?

That would be me. Murlo (Dave) has the same pumps but in the stock (plastic) hanger.

http://i959.photobucket.com/albums/ae80/mlomker/Car%20-%20June%202010/fullblown.jpg
FullBlown
06-03-2010, 07:59 PM
He has a controller box that runs off of boost. It controls a special 270lph Walbro that is designed to run progressive. Normally it'd turn on at 5psi or so and then it'll progressively ramp up to a cut-off psi, normally 15 (they are adjustable). They also do a simpler Hobbs kit with two GSS342's in it, which is what you mentioned.

I don't know what I'll try next if it wasn't the primary pump. Try to find a stock FPR to borrow from someone and swap it in, I suppose. After that I have to consider pulling your hanger and having BlaqOPs do their normal setup in a stock hanger. They said they'd help me with that for free and I've already got too much money into this fueling setup. <sigh>

Gotcha, another thing is that I highly doubt the suction assembly has anything to do with the erratic pressure. The suction assembly works off the return line and I see no way of getting backed up. The gss342 is a normally closed pump. If the second pump is not on, then it would just act as a check valve.

The first thing i would do since you have a progressive controller on there, is to bypass that controller by running straight 12 volts to the both pumps. Seems as though the progressive controller is pulsating the second pump. In all honesty, I would ditch the progressive controller. There is no need to progressively control intank fuel pumps. Progressively controlling pumps will help keep them cool. If you had a big external pump that whines like hell and heats up on the street, then I would install the progressive controller. Hope that helps a bit. LJ
mlomker
06-03-2010, 08:18 PM
The gss342 is a normally closed pump. If the second pump is not on, then it would just act as a check valve.

So if it weren't powered then it wouldn't back-flow? If that's the case then I could install one in the second pump position and the hanger should operate okay as a single-pump setup...temporarily.

If I hear from Shane that the pump swap didn't help then I'm leaning toward installing a Hobbs switch setup.
FullBlown
06-03-2010, 08:42 PM
So if it weren't powered then it wouldn't back-flow? If that's the case then I could install one in the second pump position and the hanger should operate okay as a single-pump setup...temporarily.

If I hear from Shane that the pump swap didn't help then I'm leaning toward installing a Hobbs switch setup.


Yep, we have tested this in the vehicle and on the bench.
mlomker
06-04-2010, 10:02 PM
The pump swap didn't work. Shane said that scheides was going to be at DB on Saturday and he'd try swapping the fpr for me if there was time.

I have afpr parts on the way and am going to convert the setup to a dual GSS342 with the second pump on a Hobbs. Waiting to hear from BlaqOPs to see if they have one in stock, otherwise I'll source the switch locally.
scheides
06-04-2010, 11:09 PM
You can use anything of mine you need man! We'll try it. I also will stick a few things in your trunk, if that's ok :)

-Ferodo DS2500 EvoX pads
-ATE Super Blue
-2Gb MicroSD card (I should have a copy of the config file I've been on there, if not I'll email it to you)
-ODB2 cable extender. I ran mine from the stock plug location all the way under the center console to the armwrest, very slick!

Thanks again for loaning me stuff, I owe ya man!
turbotalon1g
06-05-2010, 06:41 AM
^He would so love to stick something in your trunk.
FullBlown
06-05-2010, 01:18 PM
Mike, make sure this is how your siphon piece is setup.

http://i124.photobucket.com/albums/p16/fullblown2k/DSCN0056.jpg

http://i124.photobucket.com/albums/p16/fullblown2k/DSCN0061.jpg

http://i124.photobucket.com/albums/p16/fullblown2k/DSCN0062.jpg
scheides
06-06-2010, 12:03 AM
Spent a lot of time on this thing today with shane and mike. I'll let lomker explain, but it is getting closer and closer :) Saw it rip off a good pull with the 1000's and a single pump, out of fuel at like 6800rpms and shane shut it down, and it was making damn awesome power.
311evo
06-06-2010, 12:39 AM
Spent a lot of time on this thing today with shane and mike. I'll let lomker explain, but it is getting closer and closer :) Saw it rip off a good pull with the 1000's and a single pump, out of fuel at like 6800rpms and shane shut it down, and it was making damn awesome power.

Ooo! in for updates.