Fuel pump questions; replace? Leave it alone?
08-17-2018, 02:08 AM
#11
2nd Gear Member
Thread Starter
Join Date: Mar 2015
Location: Oregon
Posts: 188
Ah. Okay. Thanks. Makes sense.
Can anybody tell me if I’m right about the injectors?
and is there any way to measure the output of the fuel pump under pressure to determine if the previous owner installed an upgraded fuel pump, or am I pretty much going to have to drop the fuel tank to see what’s in there? Like I was wondering if I put a fuel pressure gauge on the fuel rail bleeder and opened the bypass up on the pressure gauge and then set a stop watch for a set amount of time and measured the amount of fuel output while monitoring the pressure and then just calculate from the time, and volume what the lph would be? Anybody do anything like that?
Can anybody tell me if I’m right about the injectors?
and is there any way to measure the output of the fuel pump under pressure to determine if the previous owner installed an upgraded fuel pump, or am I pretty much going to have to drop the fuel tank to see what’s in there? Like I was wondering if I put a fuel pressure gauge on the fuel rail bleeder and opened the bypass up on the pressure gauge and then set a stop watch for a set amount of time and measured the amount of fuel output while monitoring the pressure and then just calculate from the time, and volume what the lph would be? Anybody do anything like that?
08-17-2018, 05:44 PM
#12
3rd Gear Member
Join Date: Feb 2013
Location: PA
Posts: 556
lol this is why i said leave well enough alone if the blower was on it when you got it Believe me the injectors and fuel pump have been up graded the stock parts couldn't keep up as mentioned above
Check fuel pressure and if ok leave it alone
I agree that part number is a 42 lb/hr injector
Check fuel pressure and if ok leave it alone
I agree that part number is a 42 lb/hr injector
Last edited by WJL; 08-17-2018 at 05:51 PM.
08-17-2018, 07:38 PM
#13
2nd Gear Member
Thread Starter
Join Date: Mar 2015
Location: Oregon
Posts: 188
lol this is why i said leave well enough alone if the blower was on it when you got it Believe me the injectors and fuel pump have been up graded the stock parts couldn't keep up as mentioned above
Check fuel pressure and if ok leave it alone
I agree that part number is a 42 lb/hr injector
Check fuel pressure and if ok leave it alone
I agree that part number is a 42 lb/hr injector
I just have a hard time not wondering because somewhere along they way somebody put that Dorman intake manifold on there and it makes me wonder what (if any) other stupid stuff was done. But I suppose if I hook up a fuel pressure guage and goose the motor and pressure stays stable that's a reassuring sign. My last area of concern is the MAF sensor and whether or not it was upgraded...but that's an easy one, just takes a little time, because whoever did the build moved the MAF and air filter inside the fender behind the fender liner...a little more of a hassle to get to, but once I'm done replacing the fuel filter and set the rear end back on the ground I'll raise the front and take a peek.
Thanks, all.
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