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I got my manual transmission gauge kit in from RiffRaff (Clay) and have been doing my pre-install research.
I have seen where the fuel bowl has 2 ports that I could tap into in order to install the sensor. One is pre-filter and one is post-filter. Which is the preferred method, or does it not even matter and I should go with whichever allows an easier install?
Could you do both and watch differential pressure for filter? May be a bit excessive but could tell upstream and downstream. Or put sensors on a switch and attach both to one gauge; then toggle between for filter condition.
Could you do both and watch differential pressure for filter? May be a bit excessive but could tell upstream and downstream. Or put sensors on a switch and attach both to one gauge; then toggle between for filter condition.
I suppose you could with two sensors and a switch rigged between the two, but that is more than what I am going for at this point.
I am attempting to see what is the preferred method of mounting the sensor from those more knowledgeable in this area than I am. I like to learn from the mistakes experience of others instead of making them myself and learning.
Could you do both and watch differential pressure for filter? May be a bit excessive but could tell upstream and downstream. Or put sensors on a switch and attach both to one gauge; then toggle between for filter condition.
With a post sensor you would know if the pressure drops below 45 - 65 PSI your going to have trouble. But sure you can do what you say.
I suppose you could with two sensors and a switch rigged between the two, but that is more than what I am going for at this point.
I am attempting to see what is the preferred method of mounting the sensor from those more knowledgeable in this area than I am. I like to learn from the mistakes experience of others instead of making them myself and learning.
10-4! Post would show what injectors see so i would do that; can you get pics when you are done with panel?
Agreed! Post is what most choose due to it being an accurate representation of what is in the head. Depending upon the condition/cleanliness of your fuel filter, the difference between pre and post can be substantial.
I have a friend that was running the two sensor setup as a test for a while. With a clean filter the difference was about 2 PSI. At 5k miles it was close to 10 PSI. YMMV based upon the quality/filtration level of fuel that you have access to.
Another vote for post filter, since that is what the injectors see. If pressure tapers off over time the first and easiest thing you'll check is the filter. Knowing the pressure differential instantaneously is great as a test, or if it's not your truck, but if it's yours and you drive it regularly.... nah.
One more wrinkle for you; I've seen discussion about installing the sensor vertically on a 90* elbow versus horizontally on a straight fitting. The claim is the sensors last longer when mounted vertically. I chose to mount horizontally since I was imagining my fat carcass flopped on top of the engine, breaking off the sensor/fitting/fuel bowl.
I also got the Isspro EV2 fuel pressure gauge. I think I will just mount it horizontally as the kit recommends. I will try to mount the sensor post filter, if others have done it this way it should not be a problem.
I was mostly concerned about space behind the lower port for the sensor, although I have not climbed up onto the bumper yet to take a look.
Prior to deleting the fuel bowl, I mounted mine horizontally due to not knowing any better.
I have read that if you want to mount it vertically on the fuel bowl you will need an elbow that has an extended length on the fuel bowl threaded side.
Prior to deleting the fuel bowl, I mounted mine horizontally due to not knowing any better.
I have read that if you want to mount it vertically on the fuel bowl you will need an elbow that has an extended length on the fuel bowl threaded side.
Can anyone confirm?
What does "before you knew any better" imply? Have you had problems or seen erroneous readings from the sensor while mounted horizontally?
What does "before you knew any better" imply? Have you had problems or seen erroneous readings from the sensor while mounted horizontally?
No, I have not had any problems with the sending unit at all thank goodness. It is still mounted horizontally and seems quite happy 80k miles later. The readings match the manual gauge on the T fitting.
"Before I knew better" simply means that the company that I purchased it from, which is located not too far from you, didn't bother to inform me and that tidbit was not included in their install instructions which did contain multiple electrical wiring errors....at least I got the ground correct.
I read a thread about it recently and thought about purchasing the fitting to correct it due to the fact that the sensors are somewhat expensive and the fitting is about $4. However, I don't know how much weight to put on the info, no offense aawlberninf350, and I have not called the manufacturer to verify, but at 4 bucks it is cheap insurance.
jhl3, I am pretty sure I know who you are talking about and am aware of the dangers from that place.
Regarding the install of your fuel pressure gauge, did you mount your sensor on the post filter plug on the passenger lower side of the bowl? Also, do you have a link to the $4 part that would allow the sensor to be mounted vertically? I may opt to do that, but would be concerned about the 90 degree bend clearing other parts and getting it actually vertical once it was in place.
I called a place here in Asheville and gave them the thread size and count and they quoted that price. If you are interested, I'll drop by there late next week and grab two.
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