Fass 95 or 150 - Opinions please

[WCPoe]

I have put it off long enough and have decided to upgrade my lift pump. My truck's a 2004. 5 2WD short box with the mods in my signature. Runs great, my static fuel pressure is about 7 psi and will pull down to 3 or 4 psi running the Smarty higher levels or the Edge, (never together due to the compounded timing).



Anyway, Genos is very close to me and has the Fass 95/kit at a decent price:



FASS 95 - FUEL PUMP AND FLTR KIT ('98. 5-'04 DODGE)-Dodge Cummins Diesel Truck Accessories – Geno’s Garage





----------Is there any reason why I should go with the Fass 150 instead of the 95?



I searched a bit but would like some input from the members. I think the Fass 95 install looks easy enough since I don't have the in tank pump setup.



----------Do I need some type of inline filter like this one to catch any large debris coming from the tank?



FLEETGUARD UNIVERSAL IN-LINE FUEL FILTER SCREEN-Dodge Cummins Diesel Truck Accessories – Geno’s Garage



----------And would you bypass the stock fuel filter / heater cannister which I'm planning to do?



*

Your thoughts are appreciated, thanks again.



Bill

 

[TCDiesel]

Here's one option https://www.turbodieselregister.com...2003-2007/211979-dual-factory-lift-pumps.html The inline filter will plug in cold temps if Bio-Diesel is used

 

[WCPoe]

Here's one option https://www.turbodieselregister.com...2003-2007/211979-dual-factory-lift-pumps.html The inline filter will plug in cold temps if Bio-Diesel is used

That's certainly a unique set-up. I'll keep that option under consideration. Thanks for posting.

Bill

 

[TimothyLong]

I have put it off long enough and have decided to upgrade my lift pump. My truck's a 2004. 5 2WD short box with the mods in my signature. Runs great, my static fuel pressure is about 7 psi and will pull down to 3 or 4 psi running the Smarty higher levels or the Edge, (never together due to the compounded timing).



Anyway, Genos is very close to me and has the Fass 95/kit at a decent price:



FASS 95 - FUEL PUMP AND FLTR KIT ('98. 5-'04 DODGE)-Dodge Cummins Diesel Truck Accessories – Geno’s Garage





----------Is there any reason why I should go with the Fass 150 instead of the 95?



I searched a bit but would like some input from the members. I think the Fass 95 install looks easy enough since I don't have the in tank pump setup.



----------Do I need some type of inline filter like this one to catch any large debris coming from the tank?



FLEETGUARD UNIVERSAL IN-LINE FUEL FILTER SCREEN-Dodge Cummins Diesel Truck Accessories – Geno’s Garage



----------And would you bypass the stock fuel filter / heater cannister which I'm planning to do?



*

Your thoughts are appreciated, thanks again.



Bill

I'm in the same boat as you and a lot of others. I've got 111K on my stock lift pump and want to upgrade, but working on saving the pennies to do it. I've read and posted on a number of threads on TDR about this and based on that, this is what I would recommend:



1) Unless you have some decent engine mods going on, you only need to go with the 95 GPM pump. However, the threading size on the 150 GPM pumps is a bit more industry standard and gives you more options for filter brands/types and better filtration ratings (as low as 2 microns). That being said, the best option, IMHO, is the FASS 150/95. It's a 150 GPM pump turned down to supply 95 GPM. It should install the same as the 95 series and I believe can be adjusted to deliver 150 GPM if you need it. However, it does cost a bit more than the 95 series pump does.



2) No, you shouldn't really need an extra in-line filter for large debris. It is my understanding that the factory fuel pick-up in the tank has a debris filter already on it. Even if it doesn't, the way the FASS works is by drawing fuel through the fuel/water separator BEFORE it goes through the pump and the main filter. The fuel/water separator will also act as a large debris filter. By going with the 150/95, you could use a Fleetguard FS1015 fuel/water separator which is rated for 10 microns at 90 GPM. That's way better than the standard steel mesh separator rated for 130 microns.



3) There is no need for the stock filter / housing once you install the FASS. Yes, the stock housing provides for fuel heating, but that is only for preventing the fuel from gelling BEFORE it goes through the stock filter. If you have the FASS, you are running unheated fuel through 2 filters before it gets to the stock housing where it can be heated. If this is a concern, the best thing to do would be to use a fuel additive that has extra anti-gelling agents in it such as Stanadyne Performance Plus.



4) I have seen TWest's dual stock pump configuration and it does deserve some serious consideration. First is that the install is less involved than the FASS install. Second, it will deliver about the same amount of fuel as the FASS for less money. Third is that if one pump fails, you have a redundant pump that keeps you going and does not leave you sit on the side of the road. The only down side, and this is a product of the stock configuration, is that the fuel runs through the pump(s) before it ever hits a filter of any kind. Yes, you can add the Fleetguard debris filter in front of the duel pump configuration, but there are other things to consider. One being emulsified water. Fuel additives like the Stanadyne Performance Plus have a de-emulsifying agent. This works optimally if the fuel goes through a fuel/water separator before going through the pump. This does not happen in the stock configuration and it has been debated as to how well that the stock fuel/water separator performs with emulsified water.



Hopefully, I've been able to provide you with some insight. On the same token, I may have also left you with more questions to ask. If I have, I can't think of a better place than TDR to ask them!

 

[WCPoe]

I'm in the same boat as you and a lot of others. I've got 111K on my stock lift pump and want to upgrade, but working on saving the pennies to do it. I've read and posted on a number of threads on TDR about this and based on that, this is what I would recommend:



1) Unless you have some decent engine mods going on, you only need to go with the 95 GPM pump. However, the threading size on the 150 GPM pumps is a bit more industry standard and gives you more options for filter brands/types and better filtration ratings (as low as 2 microns). That being said, the best option, IMHO, is the FASS 150/95. It's a 150 GPM pump turned down to supply 95 GPM. It should install the same as the 95 series and I believe can be adjusted to deliver 150 GPM if you need it. However, it does cost a bit more than the 95 series pump does.



2) No, you shouldn't really need an extra in-line filter for large debris. It is my understanding that the factory fuel pick-up in the tank has a debris filter already on it. Even if it doesn't, the way the FASS works is by drawing fuel through the fuel/water separator BEFORE it goes through the pump and the main filter. The fuel/water separator will also act as a large debris filter. By going with the 150/95, you could use a Fleetguard FS1015 fuel/water separator which is rated for 10 microns at 90 GPM. That's way better than the standard steel mesh separator rated for 130 microns.



3) There is no need for the stock filter / housing once you install the FASS. Yes, the stock housing provides for fuel heating, but that is only for preventing the fuel from gelling BEFORE it goes through the stock filter. If you have the FASS, you are running unheated fuel through 2 filters before it gets to the stock housing where it can be heated. If this is a concern, the best thing to do would be to use a fuel additive that has extra anti-gelling agents in it such as Stanadyne Performance Plus.



4) I have seen TWest's dual stock pump configuration and it does deserve some serious consideration. First is that the install is less involved than the FASS install. Second, it will deliver about the same amount of fuel as the FASS for less money. Third is that if one pump fails, you have a redundant pump that keeps you going and does not leave you sit on the side of the road. The only down side, and this is a product of the stock configuration, is that the fuel runs through the pump(s) before it ever hits a filter of any kind. Yes, you can add the Fleetguard debris filter in front of the duel pump configuration, but there are other things to consider. One being emulsified water. Fuel additives like the Stanadyne Performance Plus have a de-emulsifying agent. This works optimally if the fuel goes through a fuel/water separator before going through the pump. This does not happen in the stock configuration and it has been debated as to how well that the stock fuel/water separator performs with emulsified water.



Hopefully, I've been able to provide you with some insight. On the same token, I may have also left you with more questions to ask. If I have, I can't think of a better place than TDR to ask them!

Thanks Tim, that's exactly the type of info I want. I didn't realize the Fass pulled through the H2O separator first.



I'm kind of stuck on the 3 micron filtering requirement and since I'm in the Atlanta area fuel gelling is the last thing on my mind so I'll probably bypass the stock fuel filter and pump. I wasn't aware of the Fass 150/95 so I'll check it out.



Thanks again,

Bill

 

[TimothyLong]

Just FYI, the thread size on the FASS 95 (and Air Dog 100) is 3/4-16 UNF-2B and the thread size on the FASS 150 is 1-14 UNS-2B. The 1-14 threading is a more common size for the larger filters. A lot of guys on TDR like to run CAT filters, which use the 1-14 threading. The FASS 150 thread size will give you that option right on the pump. Also, here is a link to TWest's dual pump set up. It's rather interesting and, like I said, deserves some serious consideration.



https://www.turbodieselregister.com...2003-2007/211979-dual-factory-lift-pumps.html

 

[BLNRAY]

i run a fass 95, it has 250,000 mi on it , i have a 1/2in pick-up tube and 1/2in plumbing to the filter. it holds 15psi .

 

[WCPoe]

Fass vs the AirDog pumps

I'm still looking at the various lift pump options and I stumbled on this comparison between the Fass and the AirDog systems. I thought you might find it interesting.



FASS vs AirDog..... You Decide! - Diesel Bombers



Please view the video of the Fass running. Can anyone comment if that thing is really that loud.