I'm running 32psi at wot, and 25 at idle. I haven't had any problems yet, but I only drive my truck a hour a week or so. I'm wondering if anyone is running this high, or higher, and if they've had any injector problems.

 

While I personally have not run TBI injectors at that high of a pressure, I did come accross this article while doing FPR research where the author addresses this. Here is the link. http://www.diy-efi.org/gmecm/faq/tbi_fp.html According to him, you should be fine.

 

Seems really high to me, if it's not running rich then i guess it would be ok. Most seem to run 18ish psi at wot and 8-10 at idle, for a Vafpr. With just a afpr most seem to be running 12-20 psi. I don't think you could hurt our big a s s injectors.

 

You should me fine Low. I'm running 22psi all around (unfortuantly, I have no vacuum reference on my afpr) with out a problem. I have had it up to 25psi, I only brought it down because 22psi worked better for my application via track tuning. Jon runs his injectors @ 28psi, and as far as I know, hasn't had any problems.