is this OK?

[tobaccogrower]

got my fuel pressure guage working today!

at idle i had 12psi and WOT with tst off i had 9psi. with the TST on 6, WOT went down to 3psi... . i want to relocate my lift pump back to the tank but can't find a place to buy the hose barb fittings! any ideas? ... ... ... james

 

[**ICEMAN**]

did you consider adding a pusher pump kit instead of moving the stock pump? my numbers were worse than yours with just the stock pump. i left the poor performing stock pump alone and added a pusher kit at the tank and now 15+ @ idle and no lower than 10 psi @ wot with pmx3 on 9.

 

[Todd T]

where was the 3PSI read from.



pre/post filter or at the pump?



if you have 3PSI at the VP I would leave well enough alone if not then add a pusher for sure.



I HAD 12 @wot @ the pump until I added my Bully Dogs (step 4's) then it dropped to 4PSI @ WOT @ the pump.



anything less than to-the-rug it recovers from very well, usually 8-12 under hard throttle.

 

[B.G. Smith]

Lowe's has the hose barbs, if not a NAPA Auto Parts should have them. bg

 

[DSmith1]

I put my fuel gauge in a couple of weeks and my readings seem way to high. The gauge when wired with the fuel line not attached would read almost 2lbs. After completing the connections using the tapped banjo bolt on the pump I have the following readings.



Idle - pegged at 16lbs

3/4 throttle 11lbs



WOT is not possible since DD2's clutch has been slipping bad. I was told that the factory lift pump was limited to 14lbs and that maybe I have a ground problem. The gauge needle is smooth and seems to respond as expected except for being at higher pressures than I keep hearing. Is this normal?



Thanks,

Dean

 

[Wheaties]

get a pusher

James,



Just my . 02, why don't you get a pusher? Janetty's has a kit out, or Scott could hook you up.



Matt

 

[Shooter]

Originally posted by DSmith1

I put my fuel gauge in a couple of weeks and my readings seem way to high. The gauge when wired with the fuel line not attached would read almost 2lbs. After completing the connections using the tapped banjo bolt on the pump I have the following readings.



Idle - pegged at 16lbs

3/4 throttle 11lbs



WOT is not possible since DD2's clutch has been slipping bad. I was told that the factory lift pump was limited to 14lbs and that maybe I have a ground problem. The gauge needle is smooth and seems to respond as expected except for being at higher pressures than I keep hearing. Is this normal?



Thanks,

Dean

Are you sure that you have the proper sending unit for the gauge range,, ??? ie. a 60lb gauge and a 30lb sending unit...

 

[bigbrassmonkey]

Napa, I got mine at home depot

 

[DSmith1]

Shooter,



I purchased it all from Geno's so I assume it is the right sending unit. One thing I have thought about is that I took someone's advice and used a grease gun extension hose so that I would have the 1/8 npt fittings already there for me. I wonder if the diameter of hose is smaller and causing the pressure to be higher. I can't remember who used this method to install and if they had higher pressures. As long as I am showing pressure shouldn't it be ok?



Dean

 

[RJOL]

Dean,



The diameter of the grease hose has no effect on the pressures you are reading... You either have a super lift pump, have it connected wrong (did you ground the sender and the gauge to the same ground as the instructions say?), or a faulty gauge or sender...

 

[DSmith1]

RJOL,



The gauge and sender are not gounded to the same place. Is that what I was suppose to do? I don't understand why that would make any difference. If it was a ground or faulty gauge problem why does it seem to respond correctly and smoothly but just at indicates higher pressures. Oh well I will try changing my ground.



Thanks,



Dean

 

[LEEH]

DSMITH1:



I had the same problem when installing my autometer FP gauge. Talked to Autometer to trouble shoot the problem.

Autometer ended up sending me a new sending unit and wiring harness. Installed the new harness and sending unit and the problem seems to be solved.



14. 5 psi at idle, haven't been for a test drive yet so do not know what psi readings I will get when on the road.

 

[RJOL]

Grounding

Dean,



You didn't say who the manufactuer of you gauges was, but Westach recommends a common ground in their instructions. The reason for this is that if there is any difference in the ground resistance, you can get a faulty reading. Sometimes one ground is better then the other. This may not fix your problems, it was just another thing to check. You may need to just send them back to Geno's for replacement...