This is a discussion on Fuel injectors within the Firebird / WS6 forums, part of the Vehicle Specific category; how difficult would it be to put in new fuel injectors i drive a 1999 firebird with a 3.8, and ...
06-19-2010, 06:09 PM #1
how difficult would it be to put in new fuel injectors i drive a 1999 firebird with a 3.8, and how would i know which ones to get?
06-19-2010, 06:24 PM #2
- Join Date
- Jan 2010
- Asheville, NC
- '02 WS6 M6 - The Reaper
extremely simple. remove wiring clips from top of injector. pull out on the little silver clips on the injector, pull up on injector. done.
what kind depends on future plans for you motor.
06-19-2010, 06:28 PM #3
sounds easy enough any special tool to pull them out, and nothing major in plans for the motor just want good gas milage
06-19-2010, 06:36 PM #4
No, they pop right out. The only tool that comes in handy is some kind of small pick to pop the clips off. You will most likely need some sort of tuning to get your mixture right, though. I went from stock to 39# on my build, and the car would not stay running on it's own before adjusting the injector slope.
Now you say you want good milage, so are you going smaller?
06-19-2010, 08:19 PM #5
Ya why change them? I just had my buddy hook up to my rails with some fuel injecter cleaner run off compressed are to make up for diconnecting the fuel pump, car runs smoother and little more power and better mileage when not on the pedal. I plan to go bigger after the cam and other mods but he told me to clean mine and they'll be good for a while. Did my Trailblazer with 120k and it got about a 2mpg gain1998 Trans Am 85k miles.
Bolt ons, MS3 113LSA cam, Circle D Stall, Tune, Modified WS6 style hood, Full Suspension, 6000k HID's, Clear Side Markers w/ Leds, Led 3rd Brake Light and 18" AR Staggered Killer Wheels w/ BFG KDW NT's.- Weekend Toy/DD
02 Trailblazer -Sold
09 Ram 1500 CC - Sold
09 Cobalt SS/TC - Sold
13 ram 1500 LoneStar CC 4x4 - Magnaflow, K&N,and more to come-DD/Toy
06-20-2010, 04:06 PM #6
- Join Date
- Nov 2005
- Bonner Springs, KS
- 99 TA
Do not run larger injectors without a tune...you will be spraying down the cylinders with excessive fuel.
06-20-2010, 05:13 PM #7
Maybe this will help some..
3800 vin C injectors -- 19.0 lb/hr
3800 vin L injectors -- 21.2 lb/hr
3800 SC vin 1 injectors -- 29.0 lb/hr
3800 Series 2 (non SC) Rochester 17103146 injectors -- 21.2 lb/hr
3800 Series 2 (non SC) Bosch 0280150973 injectors -- 21.2 lb/hr
Last edited by Smittro; 07-14-2010 at 11:35 AM.
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06-25-2010, 10:19 AM #8
yes that chart helped alot, and i want to replace them cause my gas milage is crap still even after new tires belt MAF sensor driver side O2 sensor flowmaster muffler jet stage 2 chip double electrode plugs msd wires k&n air filter radiator flush tranny flush new fuel filter fluid changes on time never late with royal purple products dont hot rod around on it and im gettin 315-340 a tank...so hopefuilly new injectors will help
06-25-2010, 11:00 AM #9
- Join Date
- Feb 2009
- Ugy Lower Corner of AL
Navy Blue Metallic
- 98 T/A w/a little mods...
06-25-2010, 12:37 PM #10
06-25-2010, 12:58 PM #11
Last edited by Smittro; 06-25-2010 at 01:01 PM.
06-25-2010, 01:07 PM #12
Bring #1 up to *top dead center* mark the damper with white caulk or soap stone. Hook up a timing light and see if the mark jumps around.. If the mark jumps back and forth alot and does'nt hold relatively steady (@ idle) then the timing chain is shot..
06-25-2010, 03:37 PM #13
when i first bought the car i was gettin 375 a tank that was at 122000 miles im at 145000 now and gettin lucky to hit 340 i assumed with the mods ive done i should be gettin in the low 400's per tank atleast, the jet chip increases milage the muffler does aswell new MAF sensor should help and O2 sensor, am i right or no?
06-25-2010, 05:15 PM #14
Last edited by Smittro; 06-25-2010 at 05:22 PM.
06-28-2010, 03:11 PM #15
06-28-2010, 04:13 PM #16
Last edited by Smittro; 06-28-2010 at 08:38 PM. Reason: added to
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