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Old 07-15-2008, 10:55 AM   #570
dietzster
Registered User

Status: Offline
Join Date: Sep 2007
Member ID: 74974
Location: Grande Prairie
Age: 29
Posts: 201
Re: 96-99 454 Vortec owners?
Yeah I've been doing alot of reading, I found out the LS1 injectors are rated like this
1998 are 28.8 lbs at 4 bar
99-00 are 26.2 lbs at 4 bar
01-02 are back to 28.8 lbs at 4 bar (with different part numbers)
I guess that is why no tune is needed on the 99-00 injectors because at 3 bar they are basically the same as our stock injectors.
I think I will try this and see how it turns out, the injectors I can get are the 28.8 lb ones from a 98 WS6.
GM Certified Master Tech
Wester's dealer

98 Crew Cab Dually
Vortec 454
4L80-E Trans-go HD-2 Reprogram Kit
Westers Tuned PCM
Thorley Tri-y Headers
True Dual Exhaust
Bored 78mm Xtreme-FI Throttle Body
NBS Power Extending Trailer Mirror Swap

04 Impala SS
Supercharged 3.8L
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