Crossfire improvement advice.
Burning Brakes
Joined: Apr 2016
Posts: 781
Likes: 73
My '84 is stone stock except for the 85-89 pump and runs just fine.
From my understanding you do not need to tinker with the FPR until you start flowing more fuel by changing or porting the existing intake.
When you pick up your new pump check to see if it comes with a new connector. The connector on my '84 was different from the 85-89 connector and I had to run out and pick one up. Unfortunately I have forgotten the GM part # but you should be able to search the forum and find the number.
Also make sure it comes with a new sock.
If you can turn a screwdriver, you can swap the fuel pump with no problem.
Instructor
Joined: Mar 2016
Posts: 171
Likes: 6
From: SW Ontario
You can put in the new 85-89 pump without doing anything to the FPR.
My '84 is stone stock except for the 85-89 pump and runs just fine.
From my understanding you do not need to tinker with the FPR until you start flowing more fuel by changing or porting the existing intake.
When you pick up your new pump check to see if it comes with a new connector. The connector on my '84 was different from the 85-89 connector and I had to run out and pick one up. Unfortunately I have forgotten the GM part # but you should be able to search the forum and find the number.
Also make sure it comes with a new sock.
If you can turn a screwdriver, you can swap the fuel pump with no problem.
My '84 is stone stock except for the 85-89 pump and runs just fine.
From my understanding you do not need to tinker with the FPR until you start flowing more fuel by changing or porting the existing intake.
When you pick up your new pump check to see if it comes with a new connector. The connector on my '84 was different from the 85-89 connector and I had to run out and pick one up. Unfortunately I have forgotten the GM part # but you should be able to search the forum and find the number.
Also make sure it comes with a new sock.
If you can turn a screwdriver, you can swap the fuel pump with no problem.
Drifting
Joined: Mar 2015
Posts: 1,275
Likes: 165
From: Utah
I'm on my mobile now, however grumpys performance garage has a thread i hijacked with my build.
The build thread is for the renegade intake/crossfire
Near the end i posted full details with part numbers and links.
Also in the thread i posted different fuel injectors with part numbers sorted by the flow rate.
I used that and cross referenced to a more generic fuel injector.
If i recall correctly the 80lb were rj11...
