8.1l injectors in a 2000 5.3

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11-01-2011, 11:27 AM

#11

lady3bglover

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I thought I had 44's, they are actually Gen III GM Truck 42#'s Delphi's from Nelson Performance. The last pic on the link.
Nelson Performance - Products

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11-01-2011, 12:51 PM

#12

bighoss77

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did you guys have to tune to run bigger injectors or just plop them in and go? i have 42lbs laying around from a supercharger that is hopefully going to be installed when i get my tax return, but for now i have a stock LQ4 with longtubes... should i put them in or just wait?

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11-01-2011, 01:01 PM

#13

grey matter 04

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you must retune for an injector swap!
If not you take a chance of washing the rings out because of too much extra fuel
FLOW tables must be altered with and injector swap