they are rated around 28-29lbs, but the connectors are uscar witch is the car style injector connector. i know the 08's and up have those connectors, im not sure about 07 and 06 and below have the delphi ones. if 28-29lbs is enough, i know racetronix makes a connector adapter for them. im not sure of it would be worth it $$ wise, the prices need to be researched.

-mike g

 

I was told they had 34 lbs injectors

 

I went through this issue when i sold the stock ones on the manifold i have. a fella with a 08 tahoe, norris_83 i belive needed some injectors. the tbss ones had the same duty cycle as his stock injectors. 28-29lbs is what what we came up with...........

 

here is the thread i started when i was researching...
http://www.tbssowners.com/forums/showthread.php?t=19136

 

So what would the stock injectors in my 03 1500 HD be? If these will provide enough fuel for my head and cam combo then I will run them. I have no plans for FI or N2O so I think they will be fine if the 8.1s work at 31 lbs

 

~24lbs i think.......let me see if i can find some proof

 

22 pph at 43.5 psi(3BAR) or 25.4 pph at 58 psi (4 BAR) of fuel pressure. Same for the 4.8/5.3/6.0 trucks 01-04.

peace
Hog

 

So you are saying the TBSS injectors are the same as the 01-04 trucks?

 

the flow rate table on a tbss tune says they are 33lb injectors.

 

Awesome, so they would be more than enough for me if the 31lb injectors from an 8.1 would be enough. Now I need to see if they will just plug in to my stock harnesses.