l98 - CorvetteForum - Chevrolet Corvette Forum Discussion

Thread / Thread Starter

Last Post

Replies

Views

Forum

L98 - "Drive" or "Overdrive" ?

(

1 2 3)

DonRich90 on 10-07-2002

04-08-2024 05:34 PM
by Sabre34

42

5,869

C4 General Discussion

2001, chip, copy, corvette, engine, headers, horse, horsepower, hp, improving, l98, motor, power, swap, tips

Horsepower for a L98 engine

(

1 2 3)

michelc4 on 03-31-2003

03-21-2024 05:56 PM
by Dacer Spears

48

18,181

C4 Tech/Performance

189133gs, air, c5, corvette, fuel, l98, r12, rail, schrader, shrader, size, stem, thread, type, valve

Fuel Pressure Schrader Valve - Thread type and size

pletzvet on 12-23-2009

03-21-2024 03:03 PM
by WVZR-1

9

6,504

C4 Tech/Performance

1989, 89, corvette, distributer, distributor, gm, hole, l98, leak, leaks, manifold, oil, pressure, top, wet

Oil leak behind the distributor on '89 L98?

TheCorvetteKid on 07-16-2005

03-06-2024 05:34 PM
by Sabre34

9

3,523

C4 Tech/Performance

9296, 98, c4, correct, corvette, corvetteform, diameter, exaust, exhaust, frisbee, jets, l98, set, size, system, xpipe

Best Exhaust Option For L98?

(

1 2)

mash2k on 08-03-2005

10-30-2023 10:26 AM
by stonesnpebbles

26

16,601

C4 General Discussion

30, 4bbl, bore, c4, corvette, crossfire, gained, hp, injection, intake, l98, lid, manifold, ported, spacer

L98 Crossfire!?

(

1 2)

Lionsden on 07-26-2003

10-27-2023 08:39 AM
by Highwayman9011

22

3,263

C4 Tech/Performance

90, check, corvette, crankcase, engine, headgasket, l98, pcv, pressure, pvc, system, tuneport, valvas, valve, valves

Are we supposed to have two PCV valves on our L98 engines?

Rob 93ZR-1 on 12-30-2003

10-24-2023 05:36 PM
by Sabre34

9

8,433

C4 Tech/Performance

1989, 86, corvette, eratic, fluctuating, gm, hunting, hunts, idle, inconsistant, l98, ls1, multec, tps, unstable

Hunting, fluctuating, erratic idle

(

1 2)

Jinxie on 09-14-2008

10-05-2023 06:26 PM
by Sabre34

21

2,887

C4 Tech/Performance

accessories, c3, car, forum, forums, heads, l98

l98?

(

1 2)

weaselbeak on 03-23-2012

10-02-2023 01:29 PM
by sahhas

22

6,811

C4 General Discussion

ac, c4, corvette, delete, install, l98, vette

TPIS A/C delete for 88-91 L98

Firevette on 10-06-2009

07-10-2023 03:09 PM
by cwracer

3

1,941

C4 Parts for Sale/Wanted

88, 98, aus, c4, check, compression, corvette, engine, geht, l98, psi, removed, spec, test, tester

'88 L98 compression check question.

65Z01 on 04-16-2002

04-08-2023 11:15 PM
by Marknangela

10

4,991

C4 Tech/Performance

L98 vs LT1

(

1 2 3 ... Last Page)

wmrobert on 11-19-2002

04-01-2023 07:53 AM
by Sabre34

62

41,556

C4 Tech/Performance

buy, car, engine, install, l98, lufkin, mi, nitrous, nos

L98 Nitrous install part one. (Lots of PICS)

skateparkdave on 02-09-2005

01-16-2023 09:26 PM
by CorvetteRules

11

2,001

C4 Tech/Performance

85, bad, corvette, failure, filter, fuel, l98, location, o2, oil, pressure, pump, sensor, switch, symptoms, work

85 corvette died, code 44

buzzbomb on 05-08-2010

12-18-2022 05:34 PM
by Sabre34

14

4,252

C4 Tech/Performance

1984, 1985, 1988, 98, corvette, fuel, gas, grade, l98, octane, recommendations, requirement, requirements, type, use

85 L98 fuel octane requirement

(

1 2)

ghlkal on 08-27-2005

12-15-2022 05:50 PM
by Sabre34

34

21,536

C4 General Discussion

bad, control, counts, crossed, dies, knock, l98, like, scanner, sensor, showing, shows, sound, sounds, wire

What does it sound like when a knock sensor dies?

quickcat on 09-12-2010

10-10-2022 02:08 AM
by drcook

8

2,163

C4 Tech/Performance

083, 113, 1989, 85, 882, 91, aluminum, bigger, cast, corvette, flow, heads, iron, l98, valve, vette

L-98 cast heads vs aluminum

(

1 2)

samdweezel05 on 03-12-2009

09-23-2022 03:30 PM
by THE 383 admiral

26

23,855

C4 Tech/Performance

199091, 1991, c4, corvette, diy, fix, l98, mirror, repairs, reset, side, speedometer, switch, vat, yroubleshooting

Sticky

The Ultimate C4 DIY thread.... write ups w/ pics..

(

1 2 3 ... Last Page)

socalman on 07-27-2010

09-22-2022 04:30 PM
by Dacer Spears

79

252,665

C4 General Discussion

1989, 240, build, camshaft, corvette, custom, engine, flow, ground, high, hp, l98, runners, slp, zz9

L98 Engine Mods - What works?

(

1 2 3 ... Last Page)

Quinny on 07-12-2009

09-06-2022 08:28 PM
by ghoastrider1

99

61,069

C4 Tech/Performance

98, ats, corvette, diference, difference, engine, engines, hp, l98, lt1, mn, optispark, reliable, sale, wisc

Difference between an LT1 & L98?

(

1 2 3)

MeanMachine350 on 06-20-2011

08-26-2022 03:28 AM
by convas

57

69,739

C4 Tech/Performance

1990, c4, common, corvette, engine, head, intake, l98, leak, leaking, leaks, locations, manifold, problems, seal, water

L98 Intake Manifold Water Leaks....Common Problem???

(

1 2)

Five Window on 11-21-2002

08-09-2022 02:56 PM
by SpikeD33

32

7,980

C4 Tech/Performance

46, 91, blue, car, code, corvette, dark, ecm, engine, esc, l98, mode, safe, system, troubleshooting, wire

91 L98 Diagnoses Help: Code #43 & #46

(

1 2)

DavesC4 on 05-14-2009

07-17-2022 08:18 PM
by drew915

25

3,240

C4 Tech/Performance

1990, air, best, body, bodysize, corvette, engine, filter, induction, intake, kn, l98, stock, systems, throttle

Best air induction on a L98

(

1 2)

tnz5106 on 12-13-2010

06-22-2022 12:19 PM
by Sabre34

21

19,304

C4 Tech/Performance

1976, 82, ac, braket, buy, corvette, delete, heads, homemade, l98, lt1, pulley, smog, tpi, vette

Those who have deleted the AC without a delete pulley

(

1 2 3 ... Last Page)

mseven on 05-07-2008

05-28-2022 01:19 AM
by Gale Banks 80'

108

50,042

C4 Tech/Performance

85 L98 cam specs

snowmanmdp on 08-12-2008

01-15-2022 08:24 PM
by Sabre34

5

2,223

C4 Tech/Performance

1984, 85, 86, 87, c4, cam, cast, corvette, factory, head, heads, iron, l98, spec, specs, stock, upgrades

'86 L98 Stock cam specs

Five Window on 11-26-2002

01-04-2022 07:46 PM
by mike1111

6

7,205

C4 Tech/Performance

1984, 84, c2, c4, cooler, cooling, corvette, engine, hose, kc4, l98, lines, location, oil, option, pipe

Factory Oil Cooler on my 84??

(

1 2)

gregc11514 on 08-08-2010

12-24-2021 10:22 PM
by WVZR-1

22

7,141

C4 Tech/Performance

WTB AFR heads for l98 90 c4

Doughboy2k3 on 02-09-2010

12-19-2021 06:02 AM
by Starlifter

7

980

C4 Parts for Sale/Wanted

1996, 87, body, bypass, coolant, coolent, corvett, corvette, heater, l98, line, plenum, throttle, tpi, water, zr1

Some throttle body coolant bypass questions (L98)

pzoom on 07-15-2002

10-25-2021 01:27 AM
by Tom400CFI

16

12,425

C4 Tech/Performance

c4, capacity, corvette, l98, lt, lt5, radiator, radiators, zr1

LT1 vs ZR1 radiator, the same or different?

(

1 2)

92KNGOHIL on 01-19-2002

10-02-2021 03:31 PM
by chaley

28

4,640

C4 ZR-1 Discussion

1985, 1996, air, bad, burn, c4, corvette, flow, l98, ls1, maf, mass, module, removal, signs, symptoms

Symptoms of bad MAF Burn-Off Module

dead_elvis_187 on 03-13-2012

07-08-2021 01:24 PM
by OldsMan

11

13,160

C4 Tech/Performance

17mm, 6speed, c3, corvette, drain, hidraulic, l98, oil, plug, put, striped, stripped, tapp, transmission, wwwhow, zf

zf 6speed drain plug stripped!!!

(

1 2 3)

tombrammer on 03-18-2010

06-02-2021 11:41 PM
by Palanon

52

8,772

C4 Tech/Performance

c4, car, cats, corvette, exhaust, garage, hollowed, l98, lt1, smell, smells, tune

exhaust smell???

(

1 2)

bpdfs on 02-17-2010

04-26-2021 07:09 PM
by rrt898

23

6,110

C4 Tech/Performance

body, bypass, c4, coolant, corvette, days, driving, engine, hose, hot, installation, l98, mod, stall, stalls, throttle, up, warm, weather

Throttle Body Coolant Bypass

(

1 2 3)

coco1950 on 01-10-2009

04-11-2021 12:03 AM
by Tom400CFI

58

19,939

C4 Tech/Performance

86, ac, air, belt, bypass, c6, coming, conditioning, corvette, eliminate, l98, pump, route, serpentine, shorter, size

A/C eliminate - belt length?

(

1 2)

Z-PDX on 09-28-2004

03-24-2021 05:32 AM
by Bill Chase

24

10,623

C4 Tech/Performance

94, bank, c4, corvette, cprvette, ecm, fuel, injector, injectors, kills, l98, pulse, receiving, short, unexpectedly

Update on fuel injector / ecm problem

(

1 2 3)

DMheart on 12-01-2011

03-24-2021 01:04 AM
by lishars

56

8,981

C4 Tech/Performance

1982, 94, air, bad, c4, caused, code, corvette, flow, hesitates, hesitation, l98, maf, mass, sensor, stop, symptoms, taking

Bad MAF = Hesitation?

Gazpar on 04-21-2010

03-20-2021 08:06 PM
by Elijah Rodriguez

6

2,273

C4 General Discussion

Let's hear your L98 heads and cam dyno numbers

neat on 05-06-2003

01-20-2021 06:00 PM
by 89onlyZ51

13

8,324

C4 Tech/Performance

1984, 1986, 1988, air, bracket, buy, c4, c5, corvette, delete, l98, pulley, pump, removal, template

Custom air pump delete bracket

(

1 2)

1986-z51 on 12-01-2010

12-04-2020 09:23 AM
by Kim Neubert

24

9,670

C4 Tech/Performance

91, c4, check, corvete, corvette, fuel, injector, injectors, l98, low, ohms, reconditioned, remove, replace, replacement

replacing injectors on 91 L98

2vettesandcounting on 08-06-2009

10-10-2020 07:58 PM
by Calderone

17

10,698

C4 Tech/Performance

354, corvette, gear, gears, l98, ratio, speed, top

2.59 to 3.54 gear ratio - what are details?

(

1 2)

87Heaven on 07-25-2001

09-02-2020 10:55 AM
by vette196

26

5,991

C4 Tech/Performance

1987, 1994, 87, 96, c4, cap, corvette, crossfire, distributor, engine, engines, fireing, firing, l98, ndanl, order

L98 firing order

(

1 2 3)

ndanl on 08-21-2009

08-31-2020 03:28 PM
by Louie Butler

41

30,748

C4 Tech/Performance

113, c4, corvette, cost, gained, hand, headers, heads, intake, l98, polish, polished, polishing, port, ported, porting, torque

Worth it to port and polish stock L98 heads?

(

1 2)

jdraughn on 03-05-2009

07-01-2020 12:52 PM
by vette196

25

16,471

C4 Tech/Performance

383, 500, build, c4, corvete, corvette, engine, hp, l98, motor, procharger, rebuild, setup, stroker, www

L98 383 Stroker

(

1 2)

drumboytroy on 04-19-2004

05-22-2020 02:59 AM
by Atapia14

29

24,643

C4 Tech/Performance

1988, check, corvette, fuel, holding, l98, loss, pressuer, pressure, pump, regulator

[L98] New fuel pump and still doesnt hold pressure?

FlyboyZR1 on 10-04-2005

05-19-2020 10:55 AM
by DubieDc

15

2,545

C4 Tech/Performance

383, afr, ca, cam, hot, hp, l98, legal, mini, miniram, ram, tpis, turbo, twin, zz9

Anyone running TPIS's mini ram intake on an L98?

stubbs on 10-15-2002

04-17-2020 07:36 PM
by auburn2

15

22,615

C4 Tech/Performance

c4, cleaning, corvette, corvetteforum, engine, l98, paint, plenum, plenuum, pnenum, ported, porting, prime, rid, runners

90 L98 Plenum and Runner Porting

90C4sRule on 03-15-2011

03-29-2020 01:38 AM
by aklim

3

2,821

C4 Tech/Performance

1984, 8688, c4, cheapest, corvette, crank, fasest, fast, fastest, fastis, hopped, l98, lt1, replace, rodspistons, stock, vette

Cheapest and Fastest C4?

(

1 2 3)

eddielb96 on 11-10-2004

03-26-2020 11:04 AM
by FAUEE

52

7,776

C4 Tech/Performance

85, 90, bolt, bolts, corvette, head, l98, length, sealant, sealer, size, torque, yield

L98 Head Bolts

dmyers on 07-14-2005

03-18-2020 11:15 PM
by Tvette99

12

6,414

C4 Tech/Performance

1985, 1991, 79, backward, cap, chevrolet, corvette, diagram, distributor, firing, installed, l98, order, positioning, rotor

My #1 is in the wrong position on the distributor, why?

(

1 2)

RED UFO on 08-16-2008

02-13-2020 08:37 AM
by jbrianfoto

21

14,568

C4 Tech/Performance

1984, 1990, battery, car, changing, corvette, disconnect, disconnected, ecm, ecu, injectors, l98, reset, restarting

Reset ECM after injector install necessary?

(

1 2)

GKK on 08-15-2008

12-27-2019 06:45 PM
by 95BLKVette

23

27,484

C4 Tech/Performance

1, 1990, air, box, camshaft, corvette, diameters, l98, lt5, max, oil, optimum, plenum, psi, specs, stage

Sticky

Tech Info - LT5 Modifications/Rebuild Tricks (500+hp)

(

1 2 3 ... Last Page)

Dynomite on 02-20-2012

11-20-2019 06:57 PM
by Dynomite

315

473,141

C4 ZR-1 Discussion

1995, 95, camaro, corvette, diagram, hose, l98, line, lines, location, lt1, passenger, routing, side, vacuum

1995 Convertible LT1 Vacuum Line Routing Diagram

Freedom95 on 06-10-2010

11-19-2019 02:13 PM
by Ron Rankin

17

39,828

C4 Tech/Performance

ac, belt, buick, bypass, c4, compressor, corvette, delete, electric, gn, l98, pulley, pump, removal, water

L98 A/C Removal Tip

rsafier on 02-12-2004

10-30-2019 03:07 PM
by CorvetteRules

16

6,062

C4 Tech/Performance

180, 195, 210, 350, afr, bottom, cam, corvette, heads, kit, l98, performance, ring, sale, stock, zz4

AFR Heads for stock L98

(

1 2 3 ... Last Page)

l98tpi on 09-23-2011

09-30-2019 03:55 PM
by Bill Chase

100

36,407

C4 Tech/Performance

1994, 90, block, corvette, driver, drivers, ecm, engine, head, l98, location, lt1, senor, sensor, side, wire

Sensor on drivers side of block on my '90?

sexasomniac on 02-12-2008

09-17-2019 10:52 AM
by GTO-fan

15

6,976

C4 Tech/Performance

1985, bolts, c4, coolant, corvette, engine, exhaust, install, intake, l98, leak, leaks, manifold, manifolds, smoke, start, white

Intake manifold leak. Common to L98?

(

1 2)

JCAIRE2 on 09-15-2002

08-29-2019 10:41 PM
by PacerX

20

15,711

C4 Tech/Performance

c4, corvette, engine, gas, l98, location, lt1, mileage, pcm, pcmforless, reviews, stock, tune, tuning, worth

Considering a PCMforless tune - is it worth it on a mostly stock setup?

(

1 2 3 ... Last Page)

npbassman on 04-18-2012

08-11-2019 08:00 AM
by 93 ragtop

79

20,659

C4 Tech/Performance

84, 87, corvette, engine, guage, l98, location, locations, oil, pressure, radiator, sender, sensor, switch, temp, temperature

87 L98 sensor locations

daveshea on 10-14-2011

07-29-2019 10:53 PM
by Tact

14

10,787

C4 Tech/Performance

02, 82, bolt, c4, c6, corvette, head, header, l98, lt1, specs, torque, tourqe, z06

head bolt torque specifications

Fredbird on 04-25-2012

06-07-2019 11:14 PM
by jv9999

10

16,487

C4 Tech/Performance

1989, 1999, 43, 89, converting, correct, corvette, distributor, electronic, find, l98, number, position, spark, weak, wheres

89 L98 - Replaced distributor - lost correct position to re-install - help!

(

1 2 3)

corvette95 on 07-06-2011

04-18-2019 11:02 AM
by 21boy

40

22,818

C4 Tech/Performance

1985, 1994, 2000, c5, change, changing, corvette, corvettw, engine, gasket, instructions, l98, oil, pan, raising, replace

How to change the oil pan gasket...

mshipon on 08-29-2001

03-25-2019 07:47 PM
by Blue Cheese

8

3,164

C4 Tech/Performance

1966, accurate, corvette, corvettes, erractically, erratic, gauge, guage, high, l98, moving, problem, reads, temp, temperature, temperture

Erratic temperature gauge

Shurshot on 12-12-2007

01-24-2019 01:22 PM
by Frankie the Fink

19

3,512

C1 & C2 Corvettes

challenge, corvette, doug, dyno, engine, identification, l98, motorsports, rippe, sale, scca, tune

Doug Rippe's L98 Corvette Challenge engine for sale

(

1 2)

Calderone on 10-10-2008

12-23-2018 09:27 PM
by PLRX

25

4,921

C4 General Discussion

377, 377ci, 383, 400, brodix, build, de, destroked, gm, heads, l98, nitrous, stroked, stroking, track

377ci Destroked 400 VS. 383 Stroked L98

(

1 2 3)

scorpion5150 on 09-29-2007

10-25-2018 02:32 PM
by dclafleur

48

26,824

C4 Tech/Performance

1984, 2001, 2003, belt, c4, c5, chain, corvette, l98, life, nylon, replace, replacement, time, timing

Timing Chain Replacement?

(

1 2)

pmihaltian on 03-16-2008

07-20-2018 12:55 PM
by xrav22

24

14,163

C4 Tech/Performance

1990, ac, air, c4, cat, cats, corvette, exaust, l98, located, oxygen, pump, remove, removing, sensor

removing the cats (1990)

jonzcustomshop on 08-08-2010

07-18-2018 03:00 PM
by gerardharings

11

5,362

C4 Tech/Performance

1987, 1990, 2001, box, c4, corvette, fuek, fuel, fuse, fuses, juice, l98, location, operate, power, pumo, pump, switch, zri

L98-no juice to fuel pump fuse

(

1 2)

covzr2 on 11-11-2009

06-28-2018 04:26 PM
by raypdq

23

8,559

C4 Tech/Performance

1984, 1989, 222, 240, air, bubble, coolant, cooling, corvette, degree, engine, l98, made, overheating, system, temperature

[Overheat] L98 got to 240+ degrees

rainsux89 on 12-29-2002

05-19-2018 11:17 AM
by xrav22

18

5,486

C4 Tech/Performance

1996, 2000, chey, corvette, emission, hose, l98, line, lines, lt1, lt4, routine, routing, vaccum, vacuum

LT4 Vacuum hose routing

kblackLT4 on 03-07-2009

01-01-2018 07:44 PM
by CaptainMerricka

11

9,439

C4 Tech/Performance

Threads Tagged with l98