C4 Tech/Performance - CorvetteForum - Chevrolet Corvette Forum Discussion

Rating Thread / Thread Starter

Last Post

Replies

Views

Sticky Threads

Sticky

<*> The Official DIY, Tech Tips, FAQ and where did my sticky go?? Thread UPDATED!!

pewter99 on Apr 19, 2011

Nov 4, 2023 11:41 AM
by HudsonFruechting

19

89,398

Normal Threads

Looking for ECM Information

(

1 2)

CorvetteRules on May 27, 2026

Today 02:53 PM
by CorvetteRules

27

801

1992 Corvette Speed sensor automatic

c4reed on Today

Today 11:50 AM
by WVZR-1

2

42

Need help with a 1994 Sport Seat Issue

LT1Roadster on Today

Today 10:20 AM
by LT1Roadster

0

28

%TPS for PE

jmgtp on Yesterday

Today 09:58 AM
by jmgtp

7

130

Options for ZF6 single mass flywheel

Need4Sneed on Jun 10, 2026

Today 09:23 AM
by XLR8-R

1

118

84 - Will start but immediately dies

CO-84Vette on Jun 10, 2026

Today 08:40 AM
by BLUE1972

8

176

Not enough fuel pressure

Jcruz679 on May 31, 2026

Today 08:22 AM
by AGENT 86

18

524

Subject: EGR & 9th Injector Delete – Spark Table Advice for EM6870 BIN?

(

1 2)

veiloctane on Oct 3, 2025

Today 03:07 AM
by veiloctane

24

1,128

What is the deal with the moaning/vibrating AC compressor?

wolf_walker on Today

Today 01:53 AM
by wolf_walker

0

71

I think I need a brake master cylinder

Impala Balko on Jun 10, 2026

Yesterday 10:35 PM
by Impala Balko

7

157

Body Dolly

Corvettes White on Jun 10, 2026

Yesterday 09:27 PM
by Corvettes White

2

140

Denso Starter Parts Supplier

Gale Banks 80' on Jun 8, 2026

Yesterday 08:12 PM
by WVZR-1

3

163

Headlight Motor brushing

BET VETTE on Apr 2, 2026

Yesterday 05:19 PM
by steve40th

11

421

1985 corvette starts then soon dies

(

1 2)

coothethird on Aug 31, 2016

Yesterday 03:23 PM
by coothethird

25

3,896

1984 Crossfire Wiring ID help

therunningwrench on Yesterday

Yesterday 01:15 PM
by therunningwrench

0

77

LT1 Harmonic Damper Removal Question

steve40th on Jun 10, 2026

Yesterday 01:02 PM
by steve40th

2

126

R12 Freon , How do I know its real

(

1 2)

steve40th on Jun 4, 2026

Yesterday 12:36 PM
by arbee

39

989

87 dana 44 spider gears

premiervette on Jun 10, 2026

Yesterday 11:18 AM
by WVZR-1

4

180

Had a good Dyno Day yesterday.

Gale Banks 80' on Jun 6, 2026

Yesterday 07:29 AM
by bjankuski

9

405

R134 conversion

BET VETTE on Jun 10, 2026

Yesterday 02:05 AM
by AZSP33D

4

175

ECM help please

Kennymc on Jun 7, 2026

Jun 10, 2026 07:50 PM
by stew86MCSS396

1

141

RD Racing camber brace

steve40th on Sep 21, 2025

Jun 10, 2026 04:17 PM
by BET VETTE

11

597

1992 A/C Clutch Question

topfuel67 on Jun 9, 2026

Jun 10, 2026 10:03 AM
by topfuel67

2

135

GPS Speed sensor instead of VSS guide

Volodaka on Jun 9, 2026

Jun 10, 2026 06:12 AM
by Phobos84

5

187

Using a/c condenser as a radiator to cool down water on an air to water i

dizwiz24 on Jun 9, 2026

Jun 9, 2026 10:54 PM
by dizwiz24

2

201

91 L98 ARP Intake Manifold Bolts

hgoodwiniii on Jun 8, 2026

Jun 9, 2026 09:19 PM
by hgoodwiniii

4

189

Camber Brace Dimensions

deradej on Mar 11, 2020

Jun 9, 2026 08:40 PM
by Magnet

1

808

Normal?

Blu89C4 on Jun 9, 2026

Jun 9, 2026 08:27 PM
by Blu89C4

8

276

C4 and using 2016-2020 Cadillac calipers

(

1 2)

Big_Philly94’Vette on Jan 5, 2025

Jun 9, 2026 06:39 PM
by Chumbini

25

2,525

Corvette C4 1984 Manual Swap with BMW GS6-37DZ (also works with any SBC gen 1)

Volodaka on May 26, 2026

Jun 9, 2026 03:24 PM
by MrBigDee

16

1,002

Youtube'r known for bespoke exhausts loses power on a C4

icsamerica on Jun 7, 2026

Jun 9, 2026 02:58 PM
by icsamerica

8

451

What can I Expect after Replacing a Locked Up/Smoking Starter and Solenoid?

standswithabeer on Jun 5, 2026

Jun 9, 2026 02:10 PM
by standswithabeer

5

270

1990-1996 Solar (Sun Load) Temperature Sensor

Kopbet1976 on Jul 19, 2023

Jun 9, 2026 11:51 AM
by ZBrink

3

1,204

Do You Have Rear Defrost Wire To Strut/Glas OEM Pics and What Gauge Wire Replacement?

colter on Jun 8, 2026

Jun 8, 2026 09:56 PM
by colter

0

135

Best Route to achieve 500 WHP

(

1 2)

Gmroberts11 on Jun 2, 2026

Jun 8, 2026 07:46 PM
by Phobos84

27

1,219

Gotta love the first nitrous tank of the season

Phobos84 on Jun 8, 2026

Jun 8, 2026 06:25 PM
by Phobos84

2

146

Help with a 1984 CFI that doesn't run! :)

(

1 2)

82-T/A on May 31, 2026

Jun 8, 2026 04:20 PM
by 82-T/A

28

780

1986 Doug Nash 4+3 help needed

tanner01nelson on May 8, 2026

Jun 8, 2026 04:36 AM
by tequilaboy

7

564

Bad TPS?

Brockron on Jun 6, 2026

Jun 7, 2026 11:59 PM
by VikingTrad3r

9

282

Modernizing the C4, Another LS Swap with Goodies

(

1 2)

ThatOneKid on Jan 17, 2026

Jun 7, 2026 09:43 PM
by ThatOneKid

25

3,091

Throttle Body Replacement

DJJ123 on Jun 10, 2025

Jun 7, 2026 09:24 PM
by steve40th

13

808

Road Race C4

(

1 2)

icsamerica on Jan 6, 2024

Jun 7, 2026 07:46 PM
by icsamerica

27

2,143

Tuning/ ECU question

Canyon.C5 on Jun 7, 2026

Jun 7, 2026 04:17 PM
by Canyon.C5

6

246

1994 corvette LT1 evap c26 code

Kennymc on Jun 7, 2026

Jun 7, 2026 02:27 PM
by Kennymc

0

158

84' Cruise Control Wont Engage

ItzJack48 on Jun 5, 2026

Jun 7, 2026 12:54 PM
by 84 4+3

5

255

84 Fuel Pressure Bleed Off

84C4Tom on Jan 14, 2025

Jun 6, 2026 06:43 PM
by 82-T/A

6

541

Help/Advice on LT4 Heads/Cam Package

skorpion317 on Jun 2, 2026

Jun 6, 2026 05:57 PM
by 95wht6spd

7

429

Experience with Gates water pump for L98

C4industries on May 27, 2026

Jun 6, 2026 05:52 PM
by C4industries

1

282

lt4 knock module

merim123 on Jun 5, 2026

Jun 6, 2026 03:17 PM
by 96 lt-4

2

213

Can't diagnose this rattling noise (Video)

(

1 2)

Need4Sneed on Mar 4, 2026

Jun 6, 2026 02:56 PM
by Need4Sneed

20

1,296

52, 52mm, 92, air, body, c4, cleaner, corvette, duct, intack, intake, l98, mm, smooth, throttle, tpi

52mm throttle body air intake duct

MikeDrum2112 on Nov 16, 2004

Jun 5, 2026 04:34 PM
by Vince TT

19

3,465

Rear wheel bearings ?

Torqsplit on Apr 23, 2026

Jun 5, 2026 02:31 PM
by ACMX92

12

672

Early 85 no crank!

Ham_monster on Jun 4, 2026

Jun 5, 2026 08:57 AM
by pltmgr

2

204

16045121, 96, bypass, c6, corvette, diagram, input, located, module, pin, shecmatic, signal, tantalum, vats, wire

VATS Module Schematic

(

1 2)

Cliff Harris on Dec 2, 2011

Jun 5, 2026 05:33 AM
by ARTHIMOUS

30

18,802

Attaching an LS to the C4 ZF 6-Speed?

(

1 2)

pointvette on Feb 15, 2022

Jun 4, 2026 10:22 PM
by C4.choppa

35

16,109

1988, 34, buried, c4, clutch, corvette, cylinder, hyd, inch, moves, pedal, removal, rod

88 clutch pedal

Red88Vette on Aug 20, 2011

Jun 4, 2026 08:57 PM
by dah2001

18

9,566

can't shift into 1st or 2nd

racingwiththewind on Jul 14, 2025

Jun 4, 2026 02:12 PM
by racingwiththewind

14

693

84' Vacuum line help

Realfast86 on May 10, 2026

Jun 4, 2026 12:50 PM
by Realfast86

15

610

85, bias, brake, c4, c5, c6, corvette, drm, drms, instal, install, installing, removal, spring

DRM brake bias spring install?

(

1 2)

myscx on Jun 1, 2003

Jun 4, 2026 11:48 AM
by KTLarry

27

9,262

Electrical issue

GregVetteC4 on Jun 3, 2026

Jun 4, 2026 07:43 AM
by GregVetteC4

6

260

1984 Crossfire keeps stalling at low speed

Amsi10 on Jun 3, 2026

Jun 4, 2026 07:00 AM
by ex-x-fire

5

194

Power door locks not working

Bugly87 on May 2, 2026

Jun 4, 2026 06:53 AM
by Natty C

10

661

1989, 87, belobrajdic, bill, convertible, corvette, how, httpwwwlabibcomc4manualpdf, install, installation, northern, replace, to, top, va, video

Convertible top install on a 1989

(

1 2 3 ... Last Page)

10.5Vette on Jan 9, 2008

Jun 3, 2026 10:35 PM
by hueburt55

62

16,644

96 LT4 Coupe - Driveline vibration 65+MPH

(

1 2 3)

Steinburger on May 29, 2025

Jun 3, 2026 10:25 AM
by 1993C4LT1

46

2,358

1986 Corvette mass air flow sensor burn off

Hobojoe on Apr 28, 2026

Jun 3, 2026 03:03 AM
by tequilaboy

7

461

Fabrication Blueprint C1/C4 suspension

zmotorhead123@gmail on May 27, 2026

Jun 2, 2026 08:25 PM
by zmotorhead123@gmail

3

312

1986 Corvette code 33 and limp mode

Hobojoe on Jun 2, 2026

Jun 2, 2026 05:05 PM
by Hobojoe

0

168

How to Test ABS Relay (the one w/the diodes) '86 Vert

standswithabeer on May 26, 2026

Jun 2, 2026 12:57 PM
by drive it

4

314

Alignment shops in New England

criceo on May 27, 2026

Jun 2, 2026 08:25 AM
by jmgtp

3

240

T56 Magnum F C Beam Adapter

Thatlsc4 on Jun 4, 2025

Jun 2, 2026 03:34 AM
by Volodaka

2

509