Lift Pump Options - Fully Automatic and High Performance? [Archive] - Diesel Place : Chevrolet and GMC Diesel Truck Forums

: Lift Pump Options - Fully Automatic and High Performance?


BassinRVer
12-02-2004, 02:47 PM
So what ae the latest fully automatic high performance lift pump options? I do not want the FASS system. PPE or TTS was making a kit, have they finished it yet?

ratlover
12-02-2004, 03:50 PM
watcha mean by fully automatic? that when you hit the key it comes on? if so you can make any fuel pump an auto. TTS is making and about to release something. No body offers a kit that i have heard of other than them going to. I think kennedy was working on something too in the electronic dept. I and many others have peiced together thier own system. Dual fm100's for me. I still need to get mine wired so its auto instead of on a simple switch......

BassinRVer
12-02-2004, 03:51 PM
Yes no switches. JK has been working on his switch for a year now.

ratlover
12-02-2004, 03:57 PM
find a ign hot wire and run it to a relay. You turn the key to start your glow plugs and on comes the pump. But then its running any time the key is on.....if you are in a wreck the pump is still spitting fuel, if you are just sitting there listening to tunes its pumping fuel. You could also wire it off of a oil pressure switch as many have done. No oil pressure no worky. Or I believe you could go off a tach signal......many options.

Forced Induction
12-02-2004, 10:21 PM
Here's an idea. Assuming you only want your fuel pump(s) to run at WOT. Install your fuel pump in-line as usual with a full size by-pass around it. In the bypass line you install a simple, not spring loaded check valve or back-flow preventer. This will allow the engine to suck fuel easiliy and will not even know the pump is there.

Now up at the fuel pedal, you install a micro switch like the ones used for N20 or LP or other. This switch would be supplied power from an IGN source. When the switch is closed (at WOT) it will send the power to a relay, which I assume you all are using anyway to get power to the pump. This would energize the pump only at WOT and unless something closes the micro switch the pump would never run. You could also put another (arming) switch in-line between the IGN feed and the micro switch, in case you didn't always want the pump on at full throttle all the time:confused: (can't imagine that??):h ). The possibilites are endless, just depends how simple or complicated you want to make it. Just a suggestion, I was surfing on the board this evening and felt like typing.:)

J

Kennedy
12-05-2004, 12:18 PM
Yes no switches. JK has been working on his switch for a year now.
This is true. It is still in development. I have had a circuit running here on my test apparatus since prior to our Labor Day Open House. I laso have just installed the new pump head this am. Things are progressing slowly but surely. The harness has been delayed because I decided to increase the current capacity for an added margin of security. My pumps consume very little current, and the higher the flow rate, the more they draw. This is up to 4 amps depending on the model...

McRat
12-05-2004, 12:30 PM
I wonder how many PSI pressure the stock fuel tank can support?

If the stock tank could support 3 PSI pressure, you could run a line to the pressure side of the turbo, put in a 3 PSI regulator, and pressurize the tank. It would act just like a pump.

Mike L.
12-05-2004, 01:09 PM
Pat
How would that affect the return fuel back into the bucket and the flapper feed under bucket? Might even throw codes.
mike

BassinRVer
12-06-2004, 07:34 AM
Jk E-Mail as soon as your finished. I also need another back window logo from you. I have the gold one now and it is wearing out. Do you have a white one? Do you remember the size I have?

E-Mail; connerrj(at)c-b.c o m

gmccall
12-08-2004, 12:25 PM
Turning pumps on can be handled with a boost pressure switch (Hobbs type or better).
Used the method for years on my Turbo Buick.

BassinRVer
12-08-2004, 02:28 PM
Would you want the pump to come on alot sooner than when the boost comes up. In my truck the boost goes from zero to 29PSI in mere seconds.