K..jsut got the truck dynod and tuned...and Im runnign the injectors at like 104-110 duty cycle!!~!!!!

So I need new injectors...Are the stock ones 24#'s?

It seem people suggest the 8.1L ones, they are 32#'s?? Are they direct fit 100% even with the plugs and everything on my 99 5.3??

Either gonn get some of those, z06(30#'s) or Mustang ones(32#)

let me know what u think

 

yes they're a direct fit. I have some I've been needing to install forever but no one seems to know how what to put in the Injector Flow rate table.

They're rated at 31# but they're something like 36.64 at our fuel psi.

EDIT- the f-body or vette ones will need new pigtails. Just got with the 31#ers. They're the easiest to install. Hopefully some buddy will tell me what their exact flow rate is.

 

man...i may just love you..asnwering all my questions today!!!

Yah my tuner was telling me id have to get the adapters to run the LS1/2 ones..but i'll just pick up a set of 8.1 litre ones..whats the part number u have?

 

thye look like these??? check the ebay link..

http://cgi.ebay.com/ebaymotors/GM-ES...ayphotohosting

 

Here's the auction I won :
http://cgi.ebay.com/ebaymotors/ws/eB...m=190082168668

The part number on them is: 25343789

 

ooo u dirty *****..thats ana amazing deal..someone was sleeping when they sold those babies...good find..im gonna cough the 120$ and buy these ones

 

yea, they were listed as 6.0 injectors but I asked him what the part number was and he said they had: 25343789 stamped on them. So I politely paid $38 for them and didn't mention anything about it.

 

is there any i need to know about installign these? jsut remove the fuel rails and pull the old ones out etc....de pressurize the system or soemthing? o rings???

 

here, I keep this bookmarked:
https://ls1tech.com/forums/showthread.php?t=309057

Who tunes your truck? If you get em installed for me, can you figure out what your tuner put in for the injector flow rate tables?

 

sure man i'll get him to tell me when hes doing it