lo3 - Third Generation F-Body Message Boards

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193, 1990, 305, block, camaro, chevy, end, grunt, heads, lo3, lo5, low, monster, roller, specs, tbi, tourque, truck

LO3 To L30 Vortec Swap: Completed(Mostly)

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RS-Chevy-SS on Feb 3, 2014

May 20, 2025 12:41 AM
by RS-Chevy-SS

593

71,846

TBI

305, 350, 700r4, 91, carsvacum, carsvacumm, diagram, diagrams, feed, firebird, generation, lo3, manifold, port, tbi, transmission, vacum, vacuum

Anyone vacuum diagram for 305 tbi 91 rs

weswisehart on Aug 30, 2008

Apr 11, 2025 02:10 PM
by Tuned Performance

7

8,080

TBI

1998, 5047821263, 79camaro, 8284, body, edinburg, firebird, gen, kit, kobel, lo3, part, partout, predator, sale, trans

Important/Useful :

For Sale/ Wanted

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1 2 3)

ZZ42Fast on Jun 24, 2003

Sep 23, 2023 07:14 AM
by iroc-si

146

26,093

European Region

22s, 350, 50, 91, bad, caprice, cid, flowmaster, good, l31, l31r, lo3, pump, smog, tbi, upgrades

91 Caprice LO3 to L31-R

bluedart on Apr 22, 2014

Aug 15, 2021 10:42 AM
by bluedart

16

12,308

TBI

305, 4th, 50, adder, body, camaro, engine, generation, lo3, power, putting, superchargers, torque, upgrades, upgrading

lo3 305 power upgrades

91 camaro rs on Oct 24, 2006

Apr 19, 2020 02:19 AM
by 86Lucille

25

14,598

Power Adders

350, 88, cam, camaro, camshaft, camshafts, cracked, gm, lo3, lobe, motion, specs, stock, tbi, vortec

Is this the TBI-Stock-cam ???

88´TransAM on Nov 29, 2008

Apr 18, 2017 09:08 PM
by mgat2420

10

10,831

TBI

16829, 93440, adapter, camaro, catalytic, clip, compatible, converter, firebird, flange, good, installation, lo3, lq4, magnaflow, pontiac, slipfit, sound

Magnaflow Part #16829 good sound?

Gary Berg on Jun 18, 2009

May 19, 2016 08:58 PM
by 1_ROCN_Z

17

4,469

Exhaust

1988, causing, forums, greatest, hard, impala, iroc, lo3, mod, photobucket, sequential, signals, start, studdmstr, turn

Do you smoke in your ThirdGen?

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1 2 3)

Aarons92Maro on Mar 20, 2009

Jan 31, 2016 11:06 AM
by gearhead141

138

8,443

Interior

3g, 3rdgencoxnet, afterburn176yahoocom, badasschargerin209, cylinder, eclipse, gt, heads, henritetraultyahoocom, lo3, rocker, rockhound505, roller, ryangriffith, vortect, zsspets

Important/Useful :

Post your chat names/emails here.

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1 2 3 4)

rx7speed on Sep 12, 2002

Oct 3, 2015 02:10 PM
by omnipotentgoku

193

29,925

FAQ Board

406, 50, camaro, fast, gt, l98, lo3, mustang, summoit

92 RS LO3 vs 94+ Mustang GT

dereklicon on Apr 7, 2014

Jul 1, 2015 07:15 AM
by dmccain

34

4,369

Theoretical and Street Racing

1992, 305, cam, camaro, engine, gen, gm, l03, lo3, lt1, performance, rs, specs, tbi, tips

Cams for a L03 305 TBI

BigRogZ28 on Jul 26, 2010

Feb 13, 2015 07:33 PM
by ChrisMPG

21

17,787

TBI

50, cam, caprice, changing, chev, firebird, gears, handle, hp, intake, lo3, manifold, motor, tbi, v8

LO3 rebuild (HP estimates?)

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1991sleeper on Apr 9, 2013

Dec 14, 2014 05:32 PM
by 1991sleeper

400

34,917

TBI

1992, 28, 43, 4l60, camaro, diiference, fittings, fuel, injection, liter, lo3, s10, swap, thirdgen, v6

4.3l swap

n7783e on Jul 4, 2012

Aug 28, 2014 05:28 PM
by zamora

31

9,397

Engine Swap

1991, 305, l03, lift, lo3, max, set, spring, stock, tbi, tps

305 TBI TFS 175cc heads tuning help

1991sleeper on May 28, 2014

Jun 26, 2014 12:33 AM
by 1991sleeper

38

2,710

DIY PROM

2) LO3 performance chips , valve springs , retainers,

1991sleeper on Aug 7, 2013

Nov 26, 2013 11:47 AM
by 1991sleeper

2

780

Engine/Drivetrain/Suspension Parts for Sale

305, camaro, coil, cranks, engines, fuel, gm, igniyion, lo3, ohm, plug, spark, sputters, start, starts, tbi, thordgen, wont

305 TBI has Fuel + Spark; Won't Start

kkingsrulee on Oct 21, 2013

Nov 5, 2013 05:33 PM
by Schurkey

5

13,889

TBI

305, 89, cam, camshaft, firebird, kit, lo3, lt1, programming, replacing, retainer, spring, springs, swap, valve

HELP lo3 Lt1 cam swap

tchampton on Oct 3, 2013

Nov 1, 2013 06:33 PM
by Formula 305

19

3,869

TBI

212, 350, 3rdgen, 411, cam, engine, gen, install, l03, l31, lo3, pcm, swap, tbi, vortec

L03 TBI 305 to Vortec 350 L31 keeping the cpfi?

Mortorq on Oct 13, 2013

Oct 17, 2013 08:06 PM
by AnthonyK0928

10

3,565

Engine Swap

1992, 2000, 50, 92, ad, camaro, electric, engine, fan, fans, gen, lo3, motors, rs, standard

Did an electric fan come standard in the 1992 Camaro RS LO3 5.0?

SKELITOR117 on Sep 22, 2011

Oct 5, 2013 01:17 PM
by Biggd4355

13

2,690

Tech / General Engine

700r4, cam, camaro, collectets, diy, headers, injectors, lo3, lt1, mac, mod, performance, stock, upgrades

lo3 w/ lt1cam and slight other mods, how far off on tune

weaz4200 on Sep 17, 2013

Sep 26, 2013 08:24 PM
by weaz4200

14

1,659

TBI

91, 93, automotive, axkt, camaro, chip, ebl, ecm, eprom, flash, holder, lo3, manual, spark, tables, tbi, trans

My 91' LO3 EBL tune thread

1991sleeper on Jan 24, 2013

May 7, 2013 03:32 PM
by 1991sleeper

32

2,802

DIY PROM

083008, 305, ac, cam, chevy, comp, crankcase, high, idle, lo3, map, pressure, sensor, stall, symptoms

Bought a built L03 Car -- Idle/Stalling Issues

kc05 on Apr 29, 2013

May 2, 2013 12:19 PM
by ninetyone

13

2,262

TBI

1984, 1990, 1992, 305, body, camaro, camaro305egr, egr, lo3, on91, rs, sensors, snnsor, solenoid, synsor, tbi, throttle

Egr sensor? 1990 305 TBI camaro

Fiero2m4 on Apr 16, 2013

Apr 17, 2013 11:37 AM
by UnderCover89TBI

1

4,424

TBI

57, cam, camaro, injectors, lo3, lt1, stock, tbi

LO3 + LT1 = which injectors?

gearheadotaku on Apr 13, 2013

Apr 15, 2013 06:44 PM
by UnderCover89TBI

1

940

TBI

30, 350, 60121, bored, build, engine, firebird, heads, intake, l03, lo3, lunati, polish, port, stock, tbi

LO3 Build

Jcodello on Sep 18, 2012

Apr 9, 2013 03:55 PM
by Jcodello

15

1,568

Tech / General Engine

88, camaro, carb, conversion, conversions, electronic, eletronic, gen, jet, l03, lo3, qjet, quadrajet, tbi

'88 L03 TBI conversion to Electronic Quadrajet possible

Mortorq on Apr 1, 2013

Apr 3, 2013 04:47 PM
by Mortorq

2

1,558

Carburetors

1987, 1989, 89, buy, driven, engine, fast, fbody, firebird, gen, lo3, pics, speakers, story, swap, underbody

my 89 firebird... story and pics

kern676 on Nov 21, 2009

Mar 24, 2013 11:02 AM
by gio.cortes89

11

2,518

Members Firebirds

1990, 1992, 305, 89, camaro, control, cruise, diagram, gen, iac, line, lines, lo3, purpose, reservoir, tbi, vacuum

vacuum line on 89 camaro tbi question?

Jk_Under on Mar 21, 2013

Mar 22, 2013 02:07 PM
by Jk_Under

6

10,005

TBI

1987, 383, 50, engine, enginesjpg, gta, http, images, key, lo3, problems, put, strokers, stroking, trans, turn, wwwenginefactorycom

383 stroker 450hp just installed!!!

manolis1969 on Mar 15, 2002

Mar 19, 2013 12:10 PM
by manolis1969

36

13,393

Engine Swap

342, 373, 88, bolt, camaro, daily, driver, l03, lo3, race, reliability, tbi, thermostat, thirdgen, tpi

Trust a LO3 to daily drive?

ThreeOhFive on Jul 21, 2012

Feb 19, 2013 03:44 AM
by Birdstheword

24

3,749

TBI

95, body, colorado, cooling, fan, grand, l03, lo3, prix, springs, switch, thirdgen

L03 fan switch

actarnoff on Sep 11, 2012

Feb 16, 2013 09:09 PM
by deadbird

7

1,175

Cooling

1989, cam, catalytic, converter, disc, iroc, irocz, l98, lo3, manual, production, rear, speed, weigh, z28

1989 Iroc Z 5spd production

vortec tpi on Sep 12, 2012

Jan 24, 2013 11:55 PM
by chazman

34

17,733

History / Originality

camaro, cars, engine, faster, fastest, guys, hard, horsepower, l03, lo3, make, questions, simple, things, truth

Wanna fast L03??? Come inside for some hard truth....

robertfrank on Nov 26, 2012

Dec 11, 2012 02:47 PM
by DarrensCamaro

14

2,954

TBI

1990, 305, 305v8, camaro, coolant, drive, driveway, gauge, l03, lo3, makes, stall, stalls, symptoms, tbi, temperature, test, thirdgen

Stalling Problem

Blue_Thunder_89 on Apr 24, 2012

Dec 6, 2012 02:55 PM
by dieseldog

19

7,295

TBI

200, 200horsepower, 200hp, 305, 700r4, 82, corvette, flywheel, hp, lo3, make, rating, rwhp, stock, tbi

Just want 200hp

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1 2 3)

ricklovin93 on Jul 27, 2011

Nov 26, 2012 06:26 PM
by one92rs

112

8,344

TBI

What kind of pressure can the stock Lo3 fpr handle

Blade09 on Nov 7, 2012

Nov 12, 2012 01:48 AM
by ringo234

16

1,096

TBI

lo3 misfire

AJHECK95 on Nov 2, 2012

Nov 8, 2012 02:10 PM
by urbanhunter44

3

659

Tech / General Engine

2002, 305, 350, 82, 83, air, block, camaro, egr, emissions, gm, instructions, intake, lo3, plate, plates, systems, trans, vacuum

egr block off plate

evil_dave on Jul 25, 2007

Nov 3, 2012 09:21 PM
by morgsie

12

5,098

TBI

1991, 305, 88, acceleration, bolt, camaro, easy, factory, fast, horsepower, hp, lag, lo3, mods, ons, tbi, tune

TBI acceleration

Bulldog75 on Sep 12, 2012

Oct 14, 2012 12:26 PM
by thomas1976

13

2,643

TBI

1992, 305, 50, 92, camaro, chip, complete, computer, ecm, kit, lo3, locate, notch, tbi, turbo, v8

Where is the computer chip located on the LO3 TBI 305 V8?

SKELITOR117 on Jun 19, 2012

Sep 20, 2012 10:28 PM
by Chevy86 IROC-Z

8

2,728

TBI

Stock L03 fan w/a 350?

Flightoficarus on Sep 1, 2012

Sep 1, 2012 12:33 AM
by Flightoficarus

0

566

Cooling

Anyone have a gas tank

2kickassbirds on May 17, 2012

Aug 31, 2012 05:36 PM
by 2kickassbirds

3

944

South West Region

eletric, figure, firebird, gear, lo3, lt1, rear, ring, transmission

Unknown rear gear

podiatra on Aug 11, 2012

Aug 22, 2012 07:08 AM
by podiatra

20

1,274

Transmissions and Drivetrain

305, 50, 700r4, camaro, carb, flow, gas, high, improve, injection, lo3, milage, mileage, mpg, port, rating, tbi, tpi, tuned

Carb/TBI/TPI MPG

Buck268 on Mar 30, 2002

Aug 21, 2012 09:23 PM
by one92rs

9

7,049

TBI

242, 95, cam, camaro, camshaft, engine, gen, good, lo3, lt1, sale, springs, swap, tbi, transmission, valve

LT1 Cam for Sale

91RockS on Jul 24, 2009

Aug 11, 2012 11:02 PM
by watajob

15

3,965

Engine/Drivetrain/Suspension Parts for Sale

081, 416, 91, carb, early, head, heads, intake, lo3, manifold, mod, special, tbi, tpi, work

416 heads and intake for tbi

rigsboo on Jun 26, 2012

Jul 22, 2012 10:43 PM
by iggy1991

2

1,331

TBI

ECM swap question

marballfire on Jul 17, 2012

Jul 17, 2012 07:02 PM
by marballfire

9

1,195

TBI

350, 3rd, bolts, camaro, carb, carbed, cfm, gen, l05, lo3, lo5, needed, parts, swap, transmission

89 Bird 305 to LO5 swap

nikk2themax on Jun 13, 2012

Jul 15, 2012 04:54 PM
by nikk2themax

4

1,611

Engine Swap

1992, 92, big, black, body, camaro, fan, fuel, lo3, pump, red, relay, rs, strip, wire

Is this the fuel pump relay?

xavier_pr84 on Jul 11, 2012

Jul 12, 2012 01:56 PM
by henryd3

1

701

Electronics

89, 90, bin, bit, cam, camaro, corvette, file, lo3, lt4, opidl, option, rs, tbi, vortec, word

looking fir a .Bin file

Foster382 on Jul 9, 2012

Jul 10, 2012 08:31 AM
by Foster382

5

2,604

TBI

Threads Tagged with lo3