Bosch III injector offsets
Thread Starter
Junior Member

Joined: Apr 2010
Posts: 58
Likes: 1
From: Waxahachie, TX
Car: 92 Firebird Convertible
Engine: 383 - First Fuel Injection TPI
Transmission: 700R4
Axle/Gears: 3:23
Bosch III injector offsets
I'm using Bosch III, 32# injectors from Injectors Plus in my 383 SBC.
The injector ID numbers have been removed.
I called Injectors Plus but they were unable to find the offset bias numbers for these injectors.
Anyone out there have any offset numbers for Bosch III, 32# injectors that they would share?
I would certainly appreciate it!
The injector ID numbers have been removed.
I called Injectors Plus but they were unable to find the offset bias numbers for these injectors.
Anyone out there have any offset numbers for Bosch III, 32# injectors that they would share?
I would certainly appreciate it!
Re: Bosch III injector offsets
Ahhh... a subject near and dear to my heart! 
https://www.thirdgen.org/forums/diy-...tors-take.html
https://www.thirdgen.org/forums/diy-...gn-iii-pw.html
Here's what I'm currently using on my 30 lb Bosch-III's. My guess is you can start with that as a baseline and fine tune from there.
In any event, do NOT expect to just change the injector constant and voltage offsets and then have it running perfectly.
https://www.thirdgen.org/forums/diy-...g-against.html

https://www.thirdgen.org/forums/diy-...tors-take.html
https://www.thirdgen.org/forums/diy-...gn-iii-pw.html
Here's what I'm currently using on my 30 lb Bosch-III's. My guess is you can start with that as a baseline and fine tune from there.
In any event, do NOT expect to just change the injector constant and voltage offsets and then have it running perfectly.
https://www.thirdgen.org/forums/diy-...g-against.html
Thread Starter
Junior Member

Joined: Apr 2010
Posts: 58
Likes: 1
From: Waxahachie, TX
Car: 92 Firebird Convertible
Engine: 383 - First Fuel Injection TPI
Transmission: 700R4
Axle/Gears: 3:23
Re: Bosch III injector offsets
I have seen these offset tables and the other posts in my research. Drive-ability is my main goal as this is a "Saturday night cruiser" only. I use is Rbob's EBL-P4 which is a system I really like for my application. Originally 36# injectors were recommended to me but I felt these would not give me the drive-ability I wanted. BLM's stay in an acceptable range (which obviously varies on any given day). I've just installed an AEM wideband but the weather has not cooperated as yet for new VE learns.
Thanks - I do appreciate the response!
Thanks - I do appreciate the response!
Senior Member


Joined: Aug 2004
Posts: 682
Likes: 0
From: Shippensburg, PA
Car: 1981 Buick Century Wagon
Engine: 87 GN engine
Transmission: 2004R
Axle/Gears: 3.73
Re: Bosch III injector offsets
I had a heck of a time finding something for my MSD 50's, that information seems to be classified or something.
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