Changing Injectors

[odd boy]

I hope what I found is right:

F55E-A2D/E. was tested and it gave: 22.5 lbs @43PSI

here is the source:

http://forums.corvetteforum.com/show...1701576&page=4

If your fuel pump is stock, the rail pressure would be 58 psig. So, following are the required numbers if the rail pressure is 58 psig:

Kpa lb/hr
0------------26.131837
5------------26.294699
10-----------26.456558
15-----------26.617433
20-----------26.777341
25-----------26.936300
30-----------27.094326
35-----------27.251436
40-----------27.407646
45-----------27.562970
50-----------27.717424
55-----------27.871022
60-----------28.023778
65-----------28.175706
70-----------28.326819
75-----------28.477130
80-----------28.626652

[98 tigershark]

Dale,
Odd boy gave some good info but dont you have a regulator built into your fuel rail?
If so call gm performance For your stock injector psi then the info Odd Boy gave you will be very helpful. So you are getting close, Let us know.
Regards
98 tigershark

[Dale]

Thats the one site I found that said they were 22.5(didnt notice the FP though tell now). Every other place list them at 24lb. But I think that info on this page is correct from playing around.

Also, everyone is forgetting. I am NOT an LSx or L31. I am an L98, which is 37 to 47 psi with an on-rail regulator. I know its not your common setup.

So, if them are 22.5@43, then that is basically similar to what was in it.

[odd boy]

okay, what is the issue??

[Dale]

okay, what is the issue??

I was asking if other things needed to be changed like B4006, B3701, and basically anything else under the injector section. As well as the main VE

As Joe mentioned, yes you should. But finding the propper information is next to nill. So after you get your IFR, adjust the ve to fit.

Then the "what injectors did I really get" since I found 2 different bits of information.

[98 tigershark]

Hi Dale,
I did mention that you had a regulator on your fuel rail and thought that you might have
a L98. I am glad that it seems right but please call GM performance and the will give you the PSI with one quick phone call. You have worked to hard and it doesnt take much to hurt your motor.
Let me know if you need the number for GMP
Take care
Thor
98 tigershark

[Dale]

Where its set right now, its running a tad rich so less likely to damage anything.

Found a ground wire loose on the system which was causing lots of fits. Got that fixed

Plan on getting a new fuel gauge next week. This time I'll get a better one that wont break sitting in the drawer. But the way its set now, that 22.5@43.5 seems very accurate.

[joecar]

Which ground wire was it...?

[Dale]

It was one down by the transmission with a huge "hoop" on it. It helped fix starting, idle, oddness in o2 sensors.