I installed #26 injectors into my 95 camaro. I am using tunercat and would like to know how to adust my programing for these injectors.
Thanks Terry

 

Its right in the second table (ECM Constants). There is a setting for injectors size.

Hal

 

I had changed that table to 26lb but the car did not seem to run right. blms were showing 142/148. I moved the fuel pressure up to 42 vac line on 50 vac line off and set the constant to 24.5lb. the blms now at 130/132. I have not tried anything else yet.
Terry

 

If you set it back to 24lbs does it then work correctly? If it does, those aren't 26lb injectors, or, they are rated differently. What are the exact specs of those 26lbers? You will notice that some injectors are rated at 39psi, some at 42,some at other strange ratings. If your BLMS are lower when you lower the injector size, it means it's trying to richen the fuel still, but not as hard as it was. Sounds like those are 24lb injectors.

-Ernest

 

After I Bought the injectors (Stock GM #26) I read on these post that they are for the LS1's. They run a higher fuel pressure than the LT1's. I may have to ditch these if I can not figure them out maybe for SVO 24s or SVO 30s
Thanks Terry

 

That's what I figured you were going to say. I'm estimating here, but an LS1 26lb injector is rated at something like 42.5 psi, while an svo is rated at 39psi. So a 26lb 42.5 psi rate injector is really a 24lb injector, because the lower rating is what most people refernce against. Yeah, sell those, and get some 30lbers somewhere else.

...and of course, check the psi rating they use..

-Ernest