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Just ignore that part then. It's not a major concern. Sent from Tapatalk

No. Just to capture any water vapor from the crank case instead of putting it thru the turbo. Sent from Tapatalk

I went with this model because it fit the bill. I did the GPH calcs with some headroom for the DS4 and injector fuel return and determined there's no need for a 100 GPH or higher pump. Also the reliability reports of this pump were a huge attractor. I know the relief valve spring only takes a...

Thanks, I'll look further into it. I wouldn't say I have excessive blow by but I do want to manage it better. I have an extremely low mile '99 engine in the stable but no reason to put it in yet. Sent from Tapatalk

Has anyone come up with a creative catch can setup that can actually separate oil and water from the CDR tube? I just put an HX40 on and want to keep the intake clean but the draft tube is messy and noticeable at idle. I've read the provent can't handle this application. Maybe something from...

The 3/8 flows plenty. No need for larger. I toyed with the idea of just grafting my own pickup into a spectra core but haven't needed it yet. My bed is all anti seized and lifts off quickly. I raised it to put the Russell adapter fitting on. Sent from Tapatalk

Darn Spectra sending unit reads red with nearly 8 gallons left. Only flaw in the system! Sent from Tapatalk

I never specifically checked with the clear hose but I suspected my last DS4 was doing this and cold starts were painful and smoky as a few lines had air in them until it worked it out. I had a few so I swapped a newer 5521 on and it's been perfect since Sent from Tapatalk

Thank you and that was the goal of it all. You can change the hose or tubing style and pump choice easily with all of these parts. I won't be changing anything though as it has been working flawlessly. I just upgraded to a HX40 and I'll do that thread soon too. Sent from Tapatalk

Awesome information. Thank you for sharing. That flow improvement between the valves is such an important change, I'd buy them just for that if I was building one I planned to keep for years to come. Sent from Tapatalk

We can calculate your GPH requirements with mm^3 or cc and RPM. You have plenty of flow if you are only dropping 5psi. Pressure drop is only an issue if it falls below what you want the transfer pump to be seeing. For the DS4 at least. You can still flow 100GPH at 0psi with the pump you...

The Raptor 100 flows more per specification. We might want to discuss what other issues you could be having. Sent from Tapatalk

Thread created : http://www.thetruckstop.us/forum/threads/fass-ddrp-drp-lift-pump-install.45709/

Important Considerations: Newer FASS DDRP pumps may be factory set ~18psi. You can change the pump bypass spring easily, but I did not have to with my N.O.S. DRP-02. My pump was MFG Feb of 2015. Regular truck Duramax filter heads do NOT have threaded inlets and are harder to adapt. I could have...

Pictures! : Parts Line-Up *note, didn't use the 120* fitting at IP but you can make whatever you want between the filter and IP since these are std JIC fitting sizes. This image has been resized. Click this bar to view the full image. Report this image Boring out the IP inlet fitting for DIY...

I wrote this on another forum but moving it here to stir up some discussion as well. Goal: Install a complete new fuel system that has enough flow to maintain consistent pressure during the variable demands of a maxxed out DS4 (I do my own tuning) injection pump while maintaining all factory...

I'll check later on. Going for a few hundred mile drive tonight. Sent from Tapatalk

Bringing this back from the dead because I have RT tuning working for both OBDI and OBDII in-house. Currently the OBD-II stuff is a bit cost prohibitive because the PLCC32->DIP32 adapter alone is $120, plus the Ostrich 2.0 and proprietary software to handle the code encryption/scramble on the...

I'd be glad to write my install thread here but sounds like we need the flow on fail info first. It does a good job of not failing which was my main concern. Sent from Tapatalk

I haven't tried but they have a tech line and a dealer system you can ask thru. I have a full list of parts and fittings for a complete system you should be able to find via the Google with my user name. Sent from Tapatalk