What is a good mechanical fuel pressure?
Thanks
Dave
Fuel pressure
fuel injected or carb?
FI requires a high pressure fuel pump. Mine puts out about 25-30 psi.
Carb is much lower. Something like 4-6 psi.
FI requires a high pressure fuel pump. Mine puts out about 25-30 psi.
Carb is much lower. Something like 4-6 psi.
Bruce Hill
RV-9A N5771H flying over 1100 hours!
Build Log at http://www.overthehills.com/RV-9A-Project
Blog at https://flyingoverthehills.wordpress.com/
EAA Tech Counselor, A&P
RV-9A N5771H flying over 1100 hours!
Build Log at http://www.overthehills.com/RV-9A-Project
Blog at https://flyingoverthehills.wordpress.com/
EAA Tech Counselor, A&P
- captain_john
- Sparky
- Posts: 5880
- Joined: Sun Oct 31, 2004 9:17 am
- Location: KPYM
No real trouble just a high reading from Dynon SV. It was reading about 41 lbs. and we put another meter in the system and it was read about 29 lbs. So I figured it was the transducer and not a true value. I am not sure if I will put on the transducer or just leave it alone and understand the difference.
Thanks for all the help.
Dave
Thanks for all the help.
Dave
- Wicked Stick
- Class B
- Posts: 1000
- Joined: Wed Feb 09, 2005 10:00 pm
- Location: KEWB
I ran into a similar issue with the VDO fuel pressure sensor. Normally my fuel pressure is between 25-30 psi. Earlier this year it would sneak up to 36+ PSI out of nowhere, as seen below.
I swapped out the sensor and the issue was immediately cured. It was an interesting failure, because most sensors I have had issues with usually read on the low side. I would recommend fixing the issue. Although you could always do some corrective math in your head, the sensor will most likely continue to degrade over time. For such an inexpensive part, monitoring a vital part of your engine functionality, I would think it makes sense to get it right.
I swapped out the sensor and the issue was immediately cured. It was an interesting failure, because most sensors I have had issues with usually read on the low side. I would recommend fixing the issue. Although you could always do some corrective math in your head, the sensor will most likely continue to degrade over time. For such an inexpensive part, monitoring a vital part of your engine functionality, I would think it makes sense to get it right.
Mike Bullock
http://www.rvplane.com
RV-7 | Superior IO-360 | Whirlwind 200RV
Garmin GTN650 | GRT Dual Sport SX EFIS
Status: FLYING!
http://www.rvplane.com
RV-7 | Superior IO-360 | Whirlwind 200RV
Garmin GTN650 | GRT Dual Sport SX EFIS
Status: FLYING!