fuel pressure sensor(s)

[noslin]

where would you install fuel pressure sensor(s) on blown setup and  general purpose on n/a setup.   would it be beneficial to run more then one sensor, if so where would you put the additional sensors?   

[32bantam]

I have mine on the output side of the K-valve. I want to know what pressure the nozzles and poppets  are seeing.

[glofria]

We drilled and tapped the plug on the distribution block at the back of the Enderle Hat for the same reason 32bantum did.

[noslin]

We drilled and tapped the plug on the distribution block at the back of the Enderle Hat for the same reason 32bantum did.

i talked to guy this weekend and asked about FP sensor location.  i asked about the distribution block. he said that his data log showed a lot of fluctuation here.  i think they do as 32bantam does. 

do you see any fluctuations on your logs if you have a logger?   im guessing it might be pulses from cylinder fill.  idk, just a guess.  you would think there would be consistent pressure there but that distribution block is feeding 8 cyl so could be some pulsing maybe

ty
dean

[ricardo1967]

We drilled and tapped the plug on the distribution block at the back of the Enderle Hat for the same reason 32bantum did.

i talked to guy this weekend and asked about FP sensor location.  i asked about the distribution block. he said that his data log showed a lot of fluctuation here.  i think they do as 32bantam does. 

do you see any fluctuations on your logs if you have a logger?   im guessing it might be pulses from cylinder fill.  idk, just a guess.  you would think there would be consistent pressure there but that distribution block is feeding 8 cyl so could be some pulsing maybe

ty
dean

Mechanical constant flow fuel injection... I expect no pressure pulsing.

[JrFuel Hayden]

I don't run a blower, but if it helps, my fuel pressure sensor is on my pump right after the fuel shut-off, between the shut off and the barrel valve.
If you are not sure, call your computer company, RacePak, RPM, or ?
Jon

[glofria]

Dean,

Yes you will see pulsing, but that can be even out by inputting the correct frequency that the sensor is designed for. I don't know about other systems, but we use an early version of the Edelbrock QuikData (Serial #0014) which allows you to adjust the frequency.

While I am comfortable using this system, I would recommend an RPM Performance Data Logger because it is cost effective and the after sales service is outstanding.

[ricardo1967]

Dean,

Yes you will see pulsing, but that can be even out by inputting the correct frequency that the sensor is designed for. I don't know about other systems, but we use an early version of the Edelbrock QuikData (Serial #0014) which allows you to adjust the frequency.

While I am comfortable using this system, I would recommend an RPM Performance Data Logger because it is cost effective and the after sales service is outstanding.

Gino,
What would cause the fuel pressure pulses? Pump impeller?

[gregm784]

I can't imagine that because there is so much line after the pump to absorb the pulses. 

[glofria]

It could also be that the reading are recorded every 1/1000 per second. I really don't remember and we really could be splitting hairs here. I will have to look a the laptop later tonight and get a screen shot of a run.

Another way to verify fuel pressure is to have mechanical 0-200 psi gauge with a one way check valve.

[noslin]

im using Motec dash logger. The person i was speaking too uses Race Pack setup.   

on the Motec you can apply a filter and set the logging rate too from 1hz to 1000hz for each channel. 

with the EFI, some car us a dampner on the fuel rail as the pulses from injectors will cause fluctuations.  with EFI injector, its opening and closing creating the pulses.  on MFI, even at the distribution, its a constant flow corrrect?  so, it shouldnt see pulses assuming?   if it is, where/how are they created.  is the valve opening events enough to do this on a plenum setup?  i could see on individual runner maybe?

ty
dean

[GlennLever]

Mine is in the distribution block

[Curly1]

Mine is on bottom of Barrel Valve and I use the RPM data logger. Very pleased with it.