Doesn anyone know what the pph rating is on this injecotr, part #81556226? Thanks.

 

Come on...The TBI board and no one knows this?

 

no hit for that # in this forum nor gmpartsdirect.com per my search.

 

10-4. Thanks for looking.

 

Maybe clean the injector up and check it again real closely, I know I've seen 6's as 8's etc.

 

OK, try this number: 217-2282

Supposedly that's an AC Delco number. I need the lb/hour rating please.

 

Are there any paint dab colors on the center post? Would you know what they came out of?

RBob.

 

There are 5 pages of answers on the ACDelco website, by using the "Find out what vehicles use this part number" feature, along with the ACD pn 217-2282. Most of them seem to be 7.4 liter v8 models.... from 1994-1997 (VIN engine code N), along with earlier applications for the 4.3 liter v6 (VIN engine code Z) back to 1988.

Start here: www.acdelco.com
HTH.

EDIT: I realized I never answered the original question: since they're injectors for either a 4.3 at 9-13 psi, or a 454 at 9-13 psi, or a 454 for 28-33 psi, then then injector rating will be approx 90 lb/hr with 28-32 psi (as in 94-95 454 SS), or around 52 lb/hr with 10 psi (conventional 4.3 use).

 

It all helps. And that's what I was looking for. THANKS!

 

my 1995-1996 7.4L TBI unit came with 42#. at 28-32 FP. not sure what the inj part # was but i posted part # about 2 years ago on this forum.

 

Ken, the 4.3 injectors are 45 lb/hr @ 11 PSI. At 28 PSI they are like 75#. My marine TBI unit had them as well, Purple/Pink color code.

 

Well, 45 lb/hr isn't that far from 52. The "error" is on-par with 90/75. The key is that they're 454 injectors.