After searching on this board I found that LS1 fuel injectors will fit in the TPI fuel rail as long as you don't put the retaining clips in. Someone mentioned something about LS1 injectors LB/hr rating being a different PSI ratting then TPI injectors, is this true?

What PSI are TPI injectors rated at?
What PSI are LS1 injectors rated at?

 

I know of someone selling some LS1 injectors. They are out of a 2000, i believe. They're 26pounders, but i'm not sure what PSI they're at. I'll ask around, see if i can't find out

 

Are LS1 injectors better then LT1 injectors? Which ones should I get?

 

anyone?

 

305 TPI: 19lb/hr
350 TPI: 22lb/hr
4.3L V8 LT1: something less than 24lb/hr
5.7L LT1: 24lb/hr
5.7L LS1: 26lb/hr
ZO6 LS6: 28lb/hr

 

Those last two are rated at 4 bar, not the same 3 bar standard as the others. When you do the math to correct to 3 bar pressure you're seeing 22.x and 24.x lb/hr, respectively.

 

Hmmm, so you're saying that if I want 24lb/hr injectors on my TPI electronics then I have to use either LT1 24lb/hr or LS1 28lb/hr injectors? You threw me off on the 3 and 4 bar thing.

Please let me know