I have 4 of them and lost track of which one is for ls b16 or gsr...

anyone has a stock motor and can tell what stamp is on theirs?

or maybe theres a chart already or a thread?

 

Im pretty sure all b series are the same, except for ITR

 

No, they aren't. The inlet port is either inline or offset. The outlet port is either straight or is bent. The pressures should all be the same though. At least in my experiences when swapping manifolds / fuel rails and modified as necessary back in the ghetto fab days.

 

not according to service manuals.

civic gsr and LS all have different pressure and injector cc

there are so many different charts for fuel injector flow its confusing which one is right. most of them are posted on reputable webpages but have different numbers for certain fuel injector I donno wtf they use to measure...
I usually go by this one it seems to be more or less accurate

B18C1 1996-1997 Acura Integra GSR DOHC 16V I4 VTEC 235
B18C1 1994-1995 Acura Integra GSR DOHC 16V I4 VTEC 235
B18B1 1994-1995 Acura Integra LS,RS DOHC 16V I4 235
B18A1 1992-1993 Acura Integra DOHC 16V I4 235
B16A3 1996-1997 Honda Del Sol Si VTEC DOHC 16V I4 VTEC 240
B16A3 1994-1995 Honda Del Sol Si VTEC DOHC 16V I4 VTEC 235


D16Y7 1996-1997 Honda Civic CX,DX,LX SOHC 16V I4 180
D16Y8 1996-1997 Honda Civic EX SOHC 16V I4 VTEC 240
D16Z6 1992-1995 Honda Civic EX,Si SOHC 16V I4 VTEC 235
D15B7 1992-1995 Honda Civic DX,LX SOHC 16V I4 235
D15B8 1992-1995 Honda Civic CX SOHC 8V I4 180
D15Z1 1992-1995 Honda Civic VX SOHC 16V I4 VTEC_E 235
D16A6 1988-1991 Honda Civic Si,CRX Si SOHC 16V I4 235



fuel pressure( all these are directly from service manuals for future reference):

98-01 b18b1 40-47psi
98-01 b18c1 47-54psi
98-01 b18c5 47-54psi
94-95 b18c1 48-55psi
93 b18a1 41-48psi
93 b17a1 48-56psi

crv 97-98 38-46psi
crv 99-00 40-47psi

96-00 Dseries 38-46psi
96-00 b16a2 40-47psi
92-95 civic 40-47psi
93-95 b16a3 40-47psi



seems like they use same injectors and change fuel pressure on each model

but theres no way to id the injectors besides what years


I have a set from 96 ls and 98ls that look same
then I got a set from 99 d16y8 that have same part number as 99-01 gsr injectors and b16a2 injectors but fueling is all fcked up with stock pressure....

and now im trying to find if I have a gsr fuel pressure regulator and they are all stamped same .
im thinking just to go with aftermarket because the markings are fn useless on these parts.

 

All D and B fuel injectors are the same, EXCEPT for the Y7, and I guess the B8, but I dont think that engine is common here (USA).

And from your FPR #'s it looks like everything but the GSR's are the same. Maybe GSR=ITR for the FPR? Even then, is it possible the GSR integras just had a higher output fuel pump? I dont know anything about fuel pump differences between different models..

 

same fuel pump for all integras

looks like same pressure for itr/gsr but part number for itr/gsr FPR is different. probably because of pipe bends.


can they be tested with air pressure? or will it read different results if I pressurize the fpr with air to test when it opens up.

 

heres what I got so far

one from 96 ls other from 92-95 jdm b16 both are attached for fuel rail.

the 3rd one I don't know what it came from anyone help id?