XDP Fuel Sump Install Review

[windrunner408]

So I have been running my AD150 with my OEM fuel pump for a few weeks now and really like how much more quiet the truck runs and everything. It keeps my fuel pressure at 64psi whether at idle or WOT with my 190/100s and Eric's Xtreme X even; but I kept noticing that I would have a few drops of fuel drip when I parked my truck after driving, which told me that I had fuel leaking some where. So I looked under the truck and of all places, it was coming from the pipe in the filler hose that the air return connects to. I am not sure why it was leaking but it really didn't surprise me because that hose was pretty old when I cut it and I probably should have replaced it when I installed the AD150. Oh well live and learn I guess. So I decided that since I was gonna have to drop the tank to fix this, I figured I might as well install a sump while I was at it. I had thought about a few different sumps (TSD, Beans Low profile, and XDP). I ended up choosing XDP because of free shipping AND 10% off so I got the sump for $148 shipped.

My initial impressions were that everything looked really well built. No rough edges. The black coating all looked good and it came with stainless steel hardware. The instructions were VERY good and had A LOT of pictures, but in all reality they are overkill and this isnt really a complicated install IMO.

I should NOTE here that XDP calls this a "no tank drop" sump; but IMO, you are an idiot to not drop the tank or pull the bed so you can remove the sending unit to gain access to the tank to clean out all of the sh!t that gets in the tank from installing the sump (as you will read about here shortly).

I found the install of this sump to actually kind of be a PITA and more difficult than I thought it should have been. It wasn't that there was some mysterious trick that had to be done but that I had to actually drill out the bolt holes on the sump by 1/64th of an inch to get the 1/4in bolts to even be able to slide though the holes. Also as the instructions recommended 1/4in holes, I found that the extra 64th of an inch really helped out in allowing the bolts to align straight enough to thread into the sump retainer inside the tank. Well as you can imagine, I did A LOT of drilling and the aluminum and plastic shavings get everywhere. Nevertheless, since the tank was out and on my garage floor, it was easy just to wipe everything back up and call it good. The sump comes with a rubber gasket to seal around each bolt but XDP recommends also using some silicone sealant to ensure everything seals up nice. I used some Permatex Formula No. 2 sealant that is resistant to oil, gasoline, and other fuels; and it stays pliable and doesn't harden. So far with about 7 gallons of fuel in the tank, everything seems to be sealed just fine.

Like I said in the beginning, the XDP sump is a very high quality piece (I was able to see all three in person before) but I really didnt like that the bolt holes were so small that I couldnt get the supplied bolts to pass through and even though it says it is a "no tank drop" sump, I would highly recommend dropping the tank and playing it safe. JMO and hope this helps some folks out there looking to install their own sump.

Here are some pics of everything installed.

[Term3]

Did you do the harpoon mod while you had the tank out?

[windrunner408]

No I had already done the harpoon mod when I had the tank out for installing the AD150.

[ODAWG714]

Lol what's a harpoon mod

[jesilvas]

You cut off the excess pipe from the vent and fill tubes that stick down into the tank. It allows you to fill your tank up more before it auto clicks off.

[jwsland]

Good review, I have the same sump. I didn't put mine in though lol.

[windrunner408]

Originally Posted by ODAWG714

Lol what's a harpoon mod

Yea it's where the filler neck tube and vent tube that stick down in the tank are trimmed off with a pair of pvc cutters. It is an awesome mod. It will allow for an easy extra 2.5-3 gallons of fuel to make it into the tank before the pump clicks off due to the foam. I highly recommend it. Before I did it the pump would click and I could get an extra 4.5 gallons of fuel in before it was at the cap, now after it clicks I am down to about 1.5 gallons and my time at the pump is MUCH less because I am not spending as much time fighting the foam.

[Jeremy@XDP]

Thanks for the review.
We're looking into the bolt holes on the sump to see if we can improve on it but prefer the tighter tolerance to prevent seepage.
You don't have to drop the tank but yes, it makes it easier.

[jrtcbmw]

Originally Posted by Jeremy@XDP

Thanks for the review.
We're looking into the bolt holes on the sump to see if we can improve on it but prefer the tighter tolerance to prevent seepage.
You don't have to drop the tank but yes, it makes it easier.

Question on your sumps. the fitting you send, what is the size and thread diameter? Looking to pick up AN fittings for my fuel system, and im going to be running your sump (which is sitting on my living room floor)

[Term3]

Originally Posted by Jeremy@XDP

Thanks for the review.
We're looking into the bolt holes on the sump to see if we can improve on it but prefer the tighter tolerance to prevent seepage.
You don't have to drop the tank but yes, it makes it easier.

I would prefer a tighter tolerance and have to fiddle with the install then to have something that later leaks.