View Full Version : C4 Tech/Performance
- Has anyone used Prothane Poly mounts for 92-96'
- radio antenna removal
- No Spark
- Speedometer
- Confused
- Please help
- Intelletronix digital dash cluster
- 1986 DTC 24 Vehicle Speed Sensor
- Horn blows when turning
- Please help
- Trim Height Driver vs. Pass Side
- Fuel injector testing 1985 4 plus 3
- Persistant Inaccurate Gas Gauge Problem 93 LT-1
- Correct Throttle Position Sensor for 1985 L98
- Throttle position sensor 1985
- Any thoughts
- Electric pump conversion signal wire?
- 1987 4+3 clutch: usually good, sometimes not
- 86 Corvette-one headlight sticks in different positions
- Got my first C4 last week, Ses light comes up intermittently
- looking at an lt4 corvette
- Gauge cluster!?
- Blower motor relay fried?
- modifiy stock auto shifter.
- 1984 Corvette ECU repair?
- 85 Corvette Idles too high
- 89 C4 Overheats
- c4 ls swap
- 1984 crossfire missing at idle
- Cold Weather Startups
- Cabin - No Power
- 1984 C100 connector diagram (LS swap help)
- Fuel pump connector wire harness voltage L98 , 1991
- "Performance Axle Ratio" on original window sticker means???
- LT4 with airfoil and de-screened MAF from factory?
- Willcox Special Weekend Sale Starts Now! ***
- What transmission
- Octane
- Front hub bearings with sensors
- A/C Compressor 89 C4
- 4+3 help in NoVA
- Wiring - What do these go to
- Problems in TPI Build
- 1991 L98 fuel rail pressure at start up
- Who uses a Jet Dynamic Spectrum Tuner
- Spring Protectors on 1996 C4 Missing
- L98 ignition timing
- 93 rear Diif. parts question ?
- EGR Delete howto
- Hose to nowhere
- The Texas Mile - October
- Wiring on top of the column
- Battery dies! Interior lights randomly come on
- Changed '95 Gauge Cluster now PS/PW Don't work
- 91 L98 Coupe Fuel pressure regulator
- Blew the trans
- Getting Started in Data Logging
- rear main oil seal leak
- Steering wheel removal problem.
- 1989 Brake Bleeder Screw?
- Newbi need help rough idle
- Drag Race Distruction Upgrades Needed
- Steering Column Wiring Harness
- Optispark Distributor 1992 Covrvette LT1? Which one is best?
- Brake Pushrod Nut?
- 1994 w/1990 sensors - LTPWS question
- '84 C4 Wipers Issue
- Converting LT1 heads for L98
- 85 Rdio Issue
- Dead 87 Corvette won't start
- who makes ZR1 17x19.5 and 17x11 for an 85?
- 5.3 LS/6 Speed Auto into 94 C4 Convertible
- C4 Corvette Start and Idle issues
- heat sometimes!!!
- Sitting 9 hours: coolant temp different from ambient temp
- Willcox Special Weekend Sale Starts Now! ***
- Clutch master bushing for an 87 4+3
- soft top deck removal
- Anybody install line locks on a c4?
- 1984 corvette does not idle
- C4 1994 LT1 Coupe
- PROM Chip change
- Brake Lock on a '90 C4
- Huge voltage loss with key on
- Flushing brakes in my 92
- Cam Rec for FIRST build
- Charging problems
- Turn Signal Cooling Duct
- C4 LT guys please help!
- Fuel Rail and regulator seals?
- Castrol SuperCar 10w60 Supersedes Castrol Professional TWS 10w60
- 1/4 mile ET Slips from Saturday 10-5-19
- Tuning my 700R4 Shift Points
- 1985 L98 heads
- 86 c4 fuel pressure issue
- Starting problems
- Power Window Question
- Willcox Week Long Sale Starts Now Weatherstrip Wiring Suspen Interior and More 20 off
- Another Drone Thread
- 1996 Interior LED Lighting
- Winter storage; starting and idling
- 1986 blown head gas
- I need some big brains to read/help...
- Opti Conversion
- Door Hardware Question
- Am I crazy?
- 1992 Chevy Corvette LT1 base model coupe DOHC or OHV?
- 1992 Corvette Power Steering Pump LT1
- 1992 Corvette Optispark
- VBP Front Soring Problem
- 700 r4 was slipping 1985 Corvette
- Diagnostic code
- gear reduction starter
- Canton Oil Pan WTF?!
- New Owner - New Forum Member - Looking for tech advice
- Zip Rebuilt Dana 36 3.54
- Changed clutch now vibration at 3k rpm
- Cleaning engine bay
- Zip Corvette Dana 36 Heavy Duty Differential Cover: Back In Stock!!!
- c4 cooling problem
- Looking For A Light Bulb
- FX3 shocks
- Consequences of narrowing the suspension
- repairing abs pump on an 87
- Master Cylinder Upgrade for 85
- 89 Hood Release cable
- Gen 2 LT-4 NITROUS plug recommendations please!
- C4 driving me loopy
- Loss of power from muffler delete?
- Willcox Special Weekend Sale Starts Now! ***
- pressurized oil send and return ports on an L98?
- LS Swap - electrical question
- Trim Hold down- IDK what it is or where to find!
- 1988-1996 C4 Corvette Headlight Motor Replacement Gear
- 88 Z51 dies
- 1985 blowing bluish smoke on start up/accel
- dash went black
- 1988 Corvette dies after 1hr of driving
- 93 Corvette Opti Spark
- How many o2 sensors
- 4-speed leak
- Help selecting cam
- Fog/running lights
- TB Coolant Bypass Mod Questions
- Newby with a C4
- 1990 C4 L98 ZF6sp Z51 Engine Control Module & Tach
- Checking the Climate Codes on an 89?
- TB Coolant Bypass Questions
- Re-manufactured Maf Bad? Code 34
- LT-4 intake gaskets DISCONTINUED?
- 1992 Rear Marker Light Out.
- AC code 09
- O2 sensors
- possible security system issue
- Oil/coolant leak
- 90-91 fsm info
- ECM voltages
- Aftermarket ECM, CCM, C68 and rear defrost problem
- 1984 C4 - Need help with trouble codes...
- Quick Jack Lift
- Speedometer Way Off/Tach OK
- Ls build with zf6 speed trans
- confirming 86 injectors will fit on a 91 ?
- Breather hose from valve cover to TB area...
- Injector Issue
- Front amp
- Willcox Special Labor Day Weekend Sale Starts Now! ***
- 89 was hard to start for a few days, now won't start.
- 1989 Corvette Dash
- Reccomended ECM repair Facilities?
- Metallic grinding noise from rear
- are hood weights different throughout the years?
- opinion needed
- Mods and Repairs - Part 1
- 88 with supercharged LT1
- P1641 & P1642 codes '96 LT-1
- HELP!C4 corvette signal light problem
- Need help - this is driving me mad! Irratic idle and surging - OBD Dump
- Sorry, but another ZF6 swap thread
- Re install fuel pump assembly in 91Z
- Alarm question
- C4 Sys not going away, HELP
- LT-4 timing set, UH OH!
- anybody have a source for a diy install trapdoor baffle kit
- Help me identify this knocking sound?
- Vacuum Trouble
- anybody know how many -cc the valve reliefs on stock 93 lt1 pistons are?
- 94' Brake Light Issue
- Service ASR
- License plate filler screws
- Harmonic Balancer clearance
- Need help downshift from 3 to 2nd, 5 sec pause.
- Time slip vs Draggy
- Throttle stuck after ASR activation
- Where is Ground for the Fuel Sending Unit ?
- Tuning: what do i do to make it ‘pop’ on deceleration . 6spd
- 1885 C4 headlights
- 88 interior lights
- MSD distributor 8361 & 6AL box
- Difficulty Lifting Reverse Lock Ring on ZF-6 Speed
- 4+3 trans gearshift is hard
- Code 32 EGR
- 88 Horn not working.
- Need some advice/help on my fuel pump wiring!
- LT-4 Opti cleaning?
- 89 with clunk going in gear....from trans...
- Uh oh! Watery oil.
- Lowering Rearend, question
- HELP!!!! Big hp Half shafts and diffs
- LT-1 computer settings for performance
- Help me pick a Track Car Powertrain
- Stupid question of the day
- C4 stereo wiring harness adapter
- 85 corvette reading 0 oil pressure
- Bypass valve upgrade advice
- Door seal replacement
- 87 ticking/snapping noise
- Willcox Special Labor Day Weekend Sale Starts Now! ***
- C4 1986 dont start
- ASR Module
- C4 Coilover Spring Rates Autox/Track
- 1991 automatic transmission shift cable issue
- VBP Alignment Spec Sheet Still Preferred ?
- Fuel Pump Question
- Wheel and tire setup for Roadracing
- C68 rebuild
- O2 Sensors a Maintenance Part?
- Speedometer with aftermarket ECU
- [Master Thread] 4+3 Transmission Shifting Issues/Quality (Manual Portion Only)
- Headlight Gear rotor
- 1985 is getting hot @ tracks
- Back Window Support Rod Help
- 1991 Brake Line Replacement
- Has anyone painted thier LT1/LT4 Fuel Injector Rail?
- Old School Mechanic
- contaminated break system
- LT1 Parallel fuel feed
- Ruby's LT1 finally let go
- 96 OBD2 tuning/programming questions
- Console Build Sticker
- Only 1 throttle body working
- WOT tuning with wideband again please help
- Small question about PCV values.
- Dumping the F45 Suspension
- 96 LT-1 performance exhaust questions
- 88 corvette issue
- 1992 Coupe Exhaust system replacement.
- freon
- Instrument panel question
- 93 no start