Fuel injector lbs
08-24-2002, 11:51 PM
#1
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Location: Brandon, FL, USA
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Fuel injector lbs
Can someone tell me how to tell the differance between certain injectors?? I have a '89 Camaro RS that had the engine changed in it, it was a 305 TBI and now it has a 350, I want to make sure that the person who changed the engine also changed the injectors (I've heard it will lack performance if they weren't changed to the proper lb injectors).
08-25-2002, 10:26 AM
#3
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Location: Phila., PA
Posts: 1,150
Well, somebody's a little grumpy. But he's also right. Gotta run the numbers.
Also, TBI injectors will handle MUCH more fuel pressure than they typically run at stock (12-14 PSI). Some people simply juice up the fuel pressure (doubling it or more in some cases) to achieve virtually the same thing as putting on larger injectors.
Also, TBI injectors will handle MUCH more fuel pressure than they typically run at stock (12-14 PSI). Some people simply juice up the fuel pressure (doubling it or more in some cases) to achieve virtually the same thing as putting on larger injectors.
08-25-2002, 05:20 PM
#4
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Location: Brandon, FL, USA
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<font face="Verdana, Arial" size="2">Originally posted by 87DJP2001:
Pull one of your FI and get a part number and mfg off of it. We are not mind reader who csn say what FI you have by the short and
non-informative Post.</font>
Pull one of your FI and get a part number and mfg off of it. We are not mind reader who csn say what FI you have by the short and
non-informative Post.</font>
------------------
1989 Camaro RS Convertable
350 ci Throttle Body Injection
(no mods yet, mostly stock except the 305 was removed and replaced with a 350)
Suggestions very much welcome!
------------------------
1996 Pontiac Firebird 3.8L v6 (Stock), Black
------------------------
1986 Chevrolet Camaro v6 2.8L (Stock)
08-25-2002, 05:24 PM
#5
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Location: Brandon, FL, USA
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<font face="Verdana, Arial" size="2">Originally posted by Damon:
Well, somebody's a little grumpy. But he's also right. Gotta run the numbers.
Also, TBI injectors will handle MUCH more fuel pressure than they typically run at stock (12-14 PSI). Some people simply juice up the fuel pressure (doubling it or more in some cases) to achieve virtually the same thing as putting on larger injectors.
</font>
Well, somebody's a little grumpy. But he's also right. Gotta run the numbers.
Also, TBI injectors will handle MUCH more fuel pressure than they typically run at stock (12-14 PSI). Some people simply juice up the fuel pressure (doubling it or more in some cases) to achieve virtually the same thing as putting on larger injectors.
</font>
Thanks for the help. Oh and by the way, the reason for the short post is as I've been reading around on here people often get PI**ED about loong messages and over flowing it with information but I honestly didn't think there was that many alternatives to the stock setup
08-26-2002, 07:10 AM
#6
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Join Date: Jan 2001
Location: Florida. USA
Posts: 1,790
Viper
I would guess, the so called 350 with the TBI
set up would have the old 305 TBI with the same fuel injector. On TPI systems you would change to 22# FI @ 45psi fuel pressure
and this is not your case, a guess again. Not
too many TBI's on a 350 which is a poor combination. My opinion.
------------------
1987 Black Camaro IROC-Z (original owner)Replaced LB9 @ 86100 miles.
New 350 Crate Engine
Balanced & Blueprinted
World Prod SR 67cc Heads 9.6:1 C.R.
Cam 454lift,216dur@50,110ls
TPI Induction(from 305)Hi-Flow Wells MAF.
22# Fuel Injectors
AFPR @45 psi & Gage
SLP Intake Runners
Fastchip Stage 2 chip
K&N Filters and Airfoil
Hotchkis STB
SLP 1 3/4 Headers
3" CATCO Catalytic conv.
SLP 3" Catback Exhaust
700R4 Auto
SLP Torque Converter(2400 stall)
1LE Aluminum Dr Shaft
Spohn Perf. rear LCA's & Panhard Bar
1989 B-W 9 bolt Limited slip 2:77 Rear
Four wheel Disc Brakes
10.5 F & 11.655 PBR R
17x8.5 ATI 5 Razze Wheels
245/45/ZR17 Tires
New DYNO RESULTS:
215 RWHP & 287 RWTQ
276 HP & 368#/ft at FLYWHEEL with all Emission controls installed.
13.74 @ 96.781
A DAILY DRIVER
I would guess, the so called 350 with the TBI
set up would have the old 305 TBI with the same fuel injector. On TPI systems you would change to 22# FI @ 45psi fuel pressure
and this is not your case, a guess again. Not
too many TBI's on a 350 which is a poor combination. My opinion.
------------------
1987 Black Camaro IROC-Z (original owner)Replaced LB9 @ 86100 miles.
New 350 Crate Engine
Balanced & Blueprinted
World Prod SR 67cc Heads 9.6:1 C.R.
Cam 454lift,216dur@50,110ls
TPI Induction(from 305)Hi-Flow Wells MAF.
22# Fuel Injectors
AFPR @45 psi & Gage
SLP Intake Runners
Fastchip Stage 2 chip
K&N Filters and Airfoil
Hotchkis STB
SLP 1 3/4 Headers
3" CATCO Catalytic conv.
SLP 3" Catback Exhaust
700R4 Auto
SLP Torque Converter(2400 stall)
1LE Aluminum Dr Shaft
Spohn Perf. rear LCA's & Panhard Bar
1989 B-W 9 bolt Limited slip 2:77 Rear
Four wheel Disc Brakes
10.5 F & 11.655 PBR R
17x8.5 ATI 5 Razze Wheels
245/45/ZR17 Tires
New DYNO RESULTS:
215 RWHP & 287 RWTQ
276 HP & 368#/ft at FLYWHEEL with all Emission controls installed.
13.74 @ 96.781
A DAILY DRIVER
08-26-2002, 11:40 PM
#7
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Thread Starter
Join Date: Mar 2002
Location: Brandon, FL, USA
Posts: 122
<font face="Verdana, Arial" size="2">Originally posted by 87DJP2001:
Viper
I would guess, the so called 350 with the TBI
set up would have the old 305 TBI with the same fuel injector. On TPI systems you would change to 22# FI @ 45psi fuel pressure
and this is not your case, a guess again. Not
too many TBI's on a 350 which is a poor combination. My opinion.
</font>
Viper
I would guess, the so called 350 with the TBI
set up would have the old 305 TBI with the same fuel injector. On TPI systems you would change to 22# FI @ 45psi fuel pressure
and this is not your case, a guess again. Not
too many TBI's on a 350 which is a poor combination. My opinion.
</font>
Personally Im getting ready to purchased a complete TPI setup, harness, injectors, manifolds, all, going to cost me about $450 though..------------------
1989 Camaro RS Convertable
350 ci Throttle Body Injection
(no mods yet, mostly stock except the 305 was removed and replaced with a 350)
Suggestions very much welcome!
------------------------
1996 Pontiac Firebird 3.8L v6 (Stock), Black
------------------------
1986 Chevrolet Camaro v6 2.8L (Stock)
08-29-2002, 08:23 PM
#8
Registered User
Join Date: Jan 2001
Location: Powder Springs, Ga. USA
Posts: 212
<font face="Verdana, Arial" size="2">Originally posted by ViperXx:
Yah my opinion too, not my idea to put it back on Personally Im getting ready to purchased a complete TPI setup, harness, injectors, manifolds, all, going to cost me about $450 though..
</font>
Yah my opinion too, not my idea to put it back on
Personally Im getting ready to purchased a complete TPI setup, harness, injectors, manifolds, all, going to cost me about $450 though..</font>
------------------
92BLKL98
'92 Black Z28 Hardtop w/Harwood 2" cowl ind. hood Modded 700R4, MSD
Ignition, March Underdrives, TPIS Fastpak, Ram air w/gutted filter box, SLP Prom, Flowmaster, & free mods, removed cats, Amsoil synthetic lubes, CE SFC's, Edelbrock STB,Spohn TA,Roadtech LCA's and Panhard Rod, Energy Susp., PST polygraphite bushings, KYB Shocks.
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