View Full Version : C4 ZR-1 Technical Postings
- Vacuum pump running (15 replies)
- DNS question (10 replies)
- Air Filter Lid (1 replies)
- MPG and range calculation (5 replies)
- Power antenna source? (9 replies)
- Electric fan removal (7 replies)
- Jasik Plug Boot Tool (1 replies)
- Fixing that pesky header stud oil leak? (2 replies)
- Starter or something else? (37 replies)
- powdercoat top end (9 replies)
- Tips on flushing brake system. (10 replies)
- Brighter Aftermarket Headlamps (85 replies)
- Fluidyne Rad in Winter (4 replies)
- Steering feeling vague (16 replies)
- Strange suspension noise (4 replies)
- fuel pump problems (0 replies)
- Transmission Speedometer Removal (3 replies)
- LED foglight replacements (54 replies)
- Cleaning a plenum after porting ?? Looking for some ideas ! (15 replies)
- 93-95 Owners...Side emblem placement.. (8 replies)
- QUestion about ALternator pulley size and belt size (26 replies)
- First Oil Change (21 replies)
- Oil Leaks (4 replies)
- C5 Calipers (26 replies)
- Half Shaft U-Joint Replacement (10 replies)
- In car removal of cam covers (79 replies)
- 92 ZR1 Missing Vaccum Hose? (0 replies)
- Headers (12 replies)
- 1992 Radio Speaker & Amp Questions (3 replies)
- Will these mufflers fit my '91? (2 replies)
- Alternator question ! (PIC) Nut on back of alternator does not loosen ! (23 replies)
- Switched to RAM dual-disc clutch, some questions (20 replies)
- AC compressor (5 replies)
- Thoughts on coil pics ? Replace or .. ? (7 replies)
- Mercury Marine builds DOHC LSx motor (17 replies)
- wet motor (7 replies)
- in car oil pan removal to repair leaks (5 replies)
- Brakes Failed (32 replies)
- Cooling fans won't turn on (5 replies)
- Rubber hose from brake fluid reservoir, 1992 (1 replies)
- DRM Coilovers (2 replies)
- Quick helpful tips (0 replies)
- Cam Cover questions and other stuff (9 replies)
- Part Name & GM part number (1 replies)
- tail light issues (2 replies)
- Clutch Safety Switch (7 replies)
- Harmonic Balancer Removal (11 replies)
- Quick questions before clutch reassembly.. Pics (1 replies)
- Hopefully not catastrophic failure? (24 replies)
- Oil Leak Check / Engine Lift (7 replies)
- Clicking / Ticking Noise - Diagnostic Help! (1 replies)
- SYS MESSAGE (4 replies)
- Brake Line specifications? (7 replies)
- Replacing coolant hoses,have a few question. (5 replies)
- LT5 w/ auto (8 replies)
- Weight savings with exhaust mods? (15 replies)
- Air Pump Filter/Silencer (4 replies)
- LS1 vs.LT4 vs.LT5 vs.LS6 vs.LS7 etc. discussion continued (40 replies)
- 90 vs. 91 FSM? (2 replies)
- Looking to purchase a 92, why HP Difference Between 90-92 and 93-95? (40 replies)
- headlight bushings (3 replies)
- smog pump removal (4 replies)
- GM Licensed Trademarks Contract Violations (2 replies)
- AC Reinstall (13 replies)
- Using a non Z zf6 in a Z.. Possible without a teardown? (16 replies)
- Important news on LT5 fuel injectors (15 replies)
- FIX ILEAN (she leans too much) (32 replies)
- LT5 ignition coils (5 replies)
- Coolant Crossover repair (10 replies)
- Daytime driving lights (6 replies)
- Oil pan bolts (14 replies)
- Rebuilding calipers,need some part numbers. (1 replies)
- Rear main seal ? Pulling clutch etc see a few drops .. (6 replies)
- Secondchance - next mini project (7 replies)
- missing/rough running (38 replies)
- Need INFO on C3's with an LT5. (11 replies)
- cranks but no start – interesting problem solved (4 replies)
- Powdercoat (5 replies)
- Power steering line routing (13 replies)
- AC blower issue (7 replies)
- Dead battery from a freak eletrical issue? (16 replies)
- Does the z have a specific FSM ? (11 replies)
- Replace Fuel Injectors? (4 replies)
- Injectors (10 replies)
- Clutch & Flywheel Replacement (14 replies)
- 427 Build II (3 replies)
- Intermittent issue starting the car , VATS or starter problem? --- (14 replies)
- Steering Rack (1 replies)
- Antenna delete Part (2 replies)
- Is It Common for People to Have 2 Sets of Brake Pads???? (2 replies)
- 350 cu in LT5 (19 replies)
- LT5 w/trans removal (2 replies)
- Prototype Wheel Identification (6 replies)
- HomeLink sun visors (4 replies)
- Help. Electrical Grimlins (9 replies)
- My car really wants to be worked on... (21 replies)
- FX3 Actuator anyone? (8 replies)
- Boosted LT5's (58 replies)
- CNC Porting- The Best? (20 replies)
- Aftermarket Differential Cover or drain plug mod? --- (9 replies)
- Replacement of Rear Trim (5 replies)
- Short throw shifters and lift ring. (11 replies)
- New Camshaft Blanks (34 replies)
- Bogs for a second and then takes off (36 replies)
- Motor mounts (4 replies)
- Possible Transmission Issue, Or Something Else? (14 replies)
- Help Lowering My Z (19 replies)
- O ring part numbers gasket material (4 replies)
- Heavy Duty front hub assy's (1 replies)
- flickering dash (18 replies)
- Targa top conversion (0 replies)
- 1991 ZR-1 Exhaust Manifold Bolt Specs (2 replies)
- Transmission Question (4 replies)
- Project Front LP filler; trim + finish... (3 replies)
- Suspension Settings (20 replies)
- Replacing the in tank fuel stuff w/current tech (32 replies)
- Can’t reset ride control codes (4 replies)
- About to use my Tech 1a for the first time, pointers? --- (35 replies)
- 17x11 wheels (7 replies)
- LT5 race engine (9 replies)
- Have your door actuators done this??? (3 replies)
- Megasquirt (0 replies)
- Alternator Woes...Pully Diameter? (8 replies)
- OBX vs Stainless Works (66 replies)
- Hey Guys, Exhaust question PT2 ?3 lost count (4 replies)
- I think my driver side cowl vent isnt draining --- (10 replies)
- Low Oil Lamp (2 replies)
- rd racimg camber brace owners help!!! (9 replies)
- Can the LT5 experts fill me in on..... (11 replies)
- Few issues with my Z (13 replies)
- Hot air from [near] pedal with A/C off... (1 replies)
- My latest mod!!! (16 replies)
- Clicking Noise Heard Upon Throttle Stab (15 replies)
- Clutch :-( (35 replies)
- So I have a "new" 56,000 LT5 engine in the garage. Build?.sell?..... (16 replies)
- Anyone near Brad 'jonszr1'...? (2 replies)
- Suspension balancing your car (2 replies)
- Fuel Pressure Reg. ? (7 replies)
- Jack... in spare? (28 replies)
- Who makes these hoses? (0 replies)
- Thread size on throttle cable clip bolts? (11 replies)
- Reintroduction to my Engine Swap (5 replies)
- Fuel lines. (11 replies)
- Pulling the Plenum for the first time... (56 replies)
- Headlight Motor Gears...changed & success.... (16 replies)
- My Dual catch can PCV setup idea.. thoughts? (14 replies)
- Radio Issue (5 replies)
- Bad injectors or vacuum leak? (9 replies)
- LT5 lower block question. (12 replies)
- What did Sea Foam do for your motor? (37 replies)
- Name this part game??? (7 replies)
- Doing an LT5 Full Rebuild, Should I replace the Cylinder Liners? (19 replies)
- Clutch Master Replacement (9 replies)
- Screw for front of Throttle plate Cover (3 replies)
- ACCEL Injector WANTED (1 replies)
- Guys with Killer Brakes, what about Rears & Bias???? (16 replies)
- Dual Mass vs. Single Mass Flywheels, Advantages/Disadvantages?????????? (30 replies)
- Up ramps, with 'helpers'... (5 replies)
- Rebuilding Top End #3032 (Last 1990 Sold) (19 replies)
- Clutch Disengaging issues (40 replies)
- DMF; serviceable? (5 replies)
- Fuel Pressure Regulator keeps failing (15 replies)
- Oil catch can (2 replies)
- Glass cleaner... (16 replies)
- ECM wiring harness removal (1 replies)
- Touched it and then it broke. (9 replies)
- LT5 hesitation... (17 replies)
- Overheating saga (0 replies)
- A/C shut off (5 replies)
- Passenger Side Header Stud - Replacing Bolt (4 replies)
- Intermittent brake feel - sometimes firm, sometimes feels very soft (5 replies)
- Problem o' the day... (14 replies)
- LT5 fuel injector testing video. 93-95 injector retrofit question (5 replies)
- Exhaust Header "Theory" and "Practicum" Discussion (13 replies)
- Using Sea Foam (12 replies)
- Changing oil temperature sender (2 replies)
- Electrical issues (11 replies)
- exhaust (77 replies)
- Fuel tank geometry [water in fuel]... (16 replies)
- DRM coil over install. (12 replies)
- LT5 fuel pump? (41 replies)
- FIC stainless injectors - primary vs secondary (1 replies)
- Secondary Vacumm Pump question??? (22 replies)
- Fuel rail o-rings (5 replies)
- Thoughts on backfire? (63 replies)
- HELP with electrical/fuse issue! (13 replies)
- Help? O-ring or no o-ring on bottom of 92 injector (1 replies)
- Trivia Question........anyone know what this Vette Doctors Black Box is? (13 replies)
- Pulling the plenum / IH Some pics !! (85 replies)
- Belt Tensioner (1 replies)
- Just got my Z back from Bill Boudreau... (25 replies)
- Learning to tune; Reboot (16 replies)
- 1991 BIN file (4 replies)
- Fluidyne radiator question (50 replies)
- no spark on 5 & 8 (11 replies)
- Sputtering (41 replies)
- AC question (10 replies)
- Code 31 trouble (9 replies)
- Installing a Autometer tach need help (2 replies)
- New to ZR-1 Removed Sec Vac system and now problem (6 replies)
- Tuning with Tunerpro (17 replies)
- Lug nut covers (1 replies)
- Brake lock up (21 replies)
- Question about dipstick seating on the dipstick tube after header install. (1 replies)
- Turn Signal Flasher (12 replies)
- Radiator Fans only working with A/C on (32 replies)
- Electrical Help (5 replies)
- "Parping" from 3500rpm up on secondaries... (19 replies)
- '90 OEM resonator (for fabhack) (2 replies)
- Engine limited to 5000 rpm 1990 ZR1 LT5 (20 replies)
- HVAC/Climate Control button repair (10 replies)
- 3M clear vinyl sheets (4 replies)
- A/C gauge readings (5 replies)
- 1990 Horn Issues - Fixed (6 replies)
- Weight of A-Molds? (5 replies)
- No start (5 replies)
- Oil smoke (3 replies)
- Serpentine Belt Tensioner Pulley making noise ... replace just pulley/bearings? --- (7 replies)
- Improving on Engine Cooling. (21 replies)
- Learning to tune.... (30 replies)
- Sagging headliner ... (snappics) (34 replies)
- Injector problems (8 replies)
- New Catch Can upgrade (44 replies)
- Cooler running temps with headers? (9 replies)
- LED tail lights (13 replies)
- AC/secondary cooling fan question (7 replies)
- Don't start (13 replies)
- Blue smoke puffs @ start-up... (1 replies)
- New oil cooler lines (4 replies)
- 3rd brake light has no power at the bulbs ... brake light switch? --- (24 replies)
- I think I lost my alternator today, or its real close to crapping out. Belt #? --- (27 replies)
- 91 Vette Doctors 368 Rebuild (97 replies)
- Head & Cam cover ? (3 replies)
- Clutch (6 replies)
- Severe Stumble Intermittingly on my 90 (20 replies)
- Morrison Dog Bone Throttle Body (13 replies)
- Coolant Disposal (15 replies)
- Oil Filters (15 replies)
- First drive on the highway...some questions??? (14 replies)
- Just for fun... (3 replies)
- Oil & Flat Tappets (27 replies)
- 1990 & 1991 engine harness (1 replies)
- Cruise control inop (20 replies)
- TunerPro Definitions for '91 (11 replies)
- Trans Questions.....Hard Going Into Gear (32 replies)
- A/C Question (10 replies)
- Time for Some Strong FBI Medicine (21 replies)
- What do I need for header install? (19 replies)
- Help! Unable to rev past 5000 (58 replies)
- Secondaries? Pros and cons? (34 replies)
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