Thinking about a fass system, I hear a lot of cummins guys talk about them. Anybody have any info on them, and are they worth it? How much do they run? Like I said any info would be good, Thanks, -NICK-
Which FASS to you have the 95 or the 150?Mines working well so far, only bad part is you can't run the fuel tank below 1/3 of a tank or you suck the fuel cup dry and pull air into the fuel lines.
Or you have to turn it off to run below 1/3 tank, luckily it's a flow thru design.
That was part of it, but also I got mine over a year ago and nobody was talking about the FASS sucking the cup dry. The big debate was wether or not the FASS removed entrained air like it said it did. And the great debate between the FASS and his dad's Air Dog legal fight's over the patent.I Diesel Dragon why did you go with the 150? Was it the bigger is better syndrome?
There was more to it than just that Mac for the reasons I mentioned above.I don't understand why anyone would need that much volume when so much is just being returned to the tank.
I like the TTS too but his dual pump setup is rated according to Steve's web site for up to 450 hp.I have the TTS system on my truck and it works great.
Where did you get the info about the FASS adding heat?It's your money spend it the way you would like and I'm not putting down any system but the Fass also adds heat to the fuel.
I don't understand why anyone would need that much volume when so much is just being returned to the tank.
agreed, have the FASS here, I know of 3 other hard fueling dmaxs running sticks with max tuning, including one that runs dual cp3s and monster injectors. If you can not guess who that is heres a hint 'bent rods'.We have 4 fass's on 4 duramax's only one truck has the starting issue when low.Our race truck has one got the job done .The other units will also perform quite well .NLDP
What are you seeing for pressure readings? Idle, before second pump kicks in,etc.I am also running the Extreme, and his dual pump setup builds pressure when I get on it instead of loosing pressure. I have a fuel PSI gauge plumbed in just after the factory filter. I had a Holley Red (RIP), and then a Stanadyne FS 100. Both of those did not keep up with the demand. I have a feeling that something bigger may be needed if we get to the point where we run twin CP3 pumps or something like that. For now they work great.
I will see 0 PSI at an idle since I got one of the early kits. My oil PSI is lower at idle, but as soon as I lean a little on the pedal the pressure goes to 3. That is the first pump kicking in. Then when I hit 10 pounds of boost it jumps up to 6 plus when the second pump turns on. The newer kits have the oil pressure reading adjusted lower so the first pump kicks in sooner.What are you seeing for pressure readings? Idle, before second pump kicks in,etc.
The return line is what returns the Air and fuel back to the Tank. The Fuel Sloshing around in the tank will aerate the fuel more than the return line will. AND the FASS is more than capable of removing said air.I should also mention that you have to tie into the fuel filler tube so the pump can return the excess fuel to the tank, which is under debate as to weather it causes more air to be mixed in with the fuel as the fuel falls back into the tank.