View Full Version : C4 Tech/Performance


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  1. oil leaking
  2. Best value LT1 383 stroker kit out there?
  3. Pot hole = lost readings!
  4. Slotted and cross drilled discs heat problem?
  5. EGR and AIR pump questions -87 L98
  6. DTC/Code 36 After Optispark Replacement
  7. Air Programmer
  8. need exhaust help
  9. Effective transmission cooler and location ideas ?
  10. Help w/ID this vacuum line part
  11. Can Anyone Tell Me...
  12. fan temp
  13. TPI runner finish difference F and Y body?
  14. My TKO 500 Swap - With Pics!
  15. 1994 high idle problem
  16. '89 serpentine belt slips off A/C pulley
  17. Dana 44
  18. Hello
  19. Info needed, bad ECM
  20. X pipe question
  21. Front Plate Cover
  22. LS1 swap with ZF6 - need parts list
  23. Borla Stinger vs 2.5y with borla dual outlet mufflers
  24. Door panel carpet
  25. is there a proper adjustment to zero out throttle position sensor?
  26. Budget 2-row radiator comparison
  27. Oil pan deal
  28. Plugs and wire kit
  29. Coil trouble '93 C4 (Solution)
  30. Forum Dose It Again
  31. Racing without a serpentine belt
  32. Something wrong with suspension
  33. topdown handling improved immensely by modifying factory x-brace
  34. LT1 overheating, so is the new owner (tha'd be me)!
  35. Electric Fuel Pump
  36. 1994 vette fuel pressure
  37. 1985 Dash cluster
  38. Doing a battery change
  39. An elusive squeak
  40. driver seat
  41. electric water pump seal
  42. xfire to 2 quads conversion
  43. Intermitten hard start
  44. Source for MAP Sensor Seal
  45. 3rd problem in three weeks
  46. what is this really fine vacuum line on bottom of TB that i just broke?
  47. Fuel Pump - Hard Start
  48. Want to check electronics, recommend a cheapo battery?
  49. Need brake advice
  50. corsa cat backs
  51. 1990 Corvette 5.7 TPI Chasing a DTC32
  52. ****St Jude Auction #71 Adam's Judges Detail Kit ****
  53. What's the biggest drag tire that will fit under the rear of the c4?
  54. body cracking noise
  55. Sick of fixing
  56. 1994 C4 TPS Replacement
  57. Rollbar for 1990 convertible
  58. Factory Pistons-Are they forged?
  59. Lucky light
  60. List Of Mods and 1/4 Mile Times
  61. Crossfire brainfart. Could it work?
  62. 1992 Receiver Change
  63. 92 Bose Gold Series not working
  64. 85 vett 530 lift w/ stock tpi, fic inj. pete k conv
  65. Need help w/94 engine wiring harness grounds
  66. Sticking throttle?
  67. failed emissions 2nd time.
  68. What is the best power adder for stock 1993?
  69. I hear a Clunk.
  70. window to door trim not lining up?
  71. Radiator replacement 96 question?
  72. Auto Xray
  73. 1990 l98 wont start after short ride
  74. 1990 l98 wont start after short ride
  75. 87 C4, vacuum line to fuel tank???
  76. car won't start after parking
  77. sbc 4.125 stroke with small journal 5.85 ??
  78. Oil Sending Unit Issue
  79. Has anyone replaced C4 seat covers and foam?
  80. Very Rough 89
  81. Summit Racing Optispark who makes them? are they any good?
  82. 1990 instrument/dash display
  83. Car wont turn over - Dash light failure
  84. Dash Lights
  85. changed o2 sensors and mileage is worse
  86. dumb question - do I even need to put new injectors in?
  87. Brake Problem
  88. Sensor for automatic headlights
  89. Which muffler for good V8-sound w/o droning?
  90. Brake Sticking Left Front 1987
  91. can an 1989 egr valve have and exhaust leak?
  92. 1987 alarm problem
  93. *** St Jude Auction #69...Time to get lubed up! Case of Royal Purple and K&N filter
  94. I'm in trouble Newbie needs help : Gas out exhaust...
  95. Stereo Delco Bose Gold series showing life signs
  96. TPS 0 volts, MAP 0 volts, barely runs
  97. Edelbrock on Manifold for '96?
  98. Help, What year smog pump do i use?
  99. LSx ECM question
  100. Help - weird engine noise and car shuttering at low speeds
  101. 1/4 mile run video/ Help with diagnosis
  102. Corvette Shops in Southern RI?
  103. Coolant Temperature Sensor Question
  104. she's running! - thanks guys!
  105. Removing Grant steering wheel adapter
  106. A tip on replacing door glass inner seals
  107. Fan Problems
  108. LT1 Optiless "It Lives"
  109. Fuel cut out fix
  110. what would cuase the driver side bank not to get fuel
  111. idle problems
  112. Making the top end swap from LT1 to LT4
  113. 1987 wiper motor ?
  114. Good shop in houston or texas in general
  115. EGR time dealy solenoid line
  116. gm tech 1,s
  117. Horn Test Connection??
  118. Idle Adjustment Screw
  119. Oil Pump fit with ARP Main Studs
  120. fuseable links ?
  121. C4 Fuel cell
  122. Opti Options??? 96 LT4
  123. Timing Chain on an 87
  124. The 96 LT4 Electrical Malfunction Saga Continues..WTF?!?
  125. current draw in dash somewhere is causing battery to die?
  126. Is match porting the plemnum to 58mm tb a problem??
  127. o2 sensor
  128. Pop up head lights
  129. Air condition
  130. Head light door opens half way
  131. Wizzing noise in the right rear
  132. RE: HELP 86 corrvette fan and wiring problem
  133. Brake bolts discounted! so what now?
  134. Outcome of my rough idle problem + a speedometer question.
  135. 4+3 overdrive issues
  136. devils n my 92
  137. speedometer and odometer problem 96 vette
  138. C4 in need of wheel bearings
  139. fuel pressure?
  140. Factory Alarm Issue
  141. 94 conv. engine temp- what should it be??
  142. dana 36 Rebuild
  143. '87 coupe-ABS light stays on
  144. '87 coupe-ABS light stays on
  145. Help with fical engine.
  146. 1986 A/C problem.
  147. LT1 to LT4
  148. Need PIC's 86 Vert decklid cable setup
  149. IAC & ICM connectors !!
  150. tie rod/steering rack 96?
  151. 96 lt4 radiator replacement
  152. Low oil light
  153. Code 36, Looking for some feed back on what to check/replace
  154. Who's running a Accel DFI Gen 7
  155. I need help!!!
  156. tool time
  157. A/C noise on an 85
  158. end link bushing install help.
  159. 1985 headlight question
  160. Anyone have success cutting down heat from trans tunnel?
  161. its allive video !!!!!
  162. fuel pump assembly seal - missing a hole. ok to just punch one in?
  163. octane booster that really works please
  164. new front speakers
  165. 1984 Transmission Questions
  166. Reduced engine power not repairable!?
  167. 95 stock alignment specs
  168. 1990 ZR1 no start
  169. PCM Mount Pics
  170. Refresh
  171. Brake questions about a 96 C4
  172. Frame stiffening
  173. Noisy smog pump on 85
  174. Clunk, Rattle, Squel..... NOOoooooo!
  175. 92 dies / cranks but no start
  176. 1/4 Mile Time.
  177. Brake Problem 1985 C4
  178. seats
  179. 1993 wiring diagram needed plez.
  180. Oil pressure
  181. GM part number for Liquid tube for 1989 air conditioner
  182. Tell me I'm on the right path....
  183. hose diameters
  184. Radiator cracked open! Help!
  185. anyone running 427 or 434" C4 with auto and 3.73s?
  186. Its allive!!!!!!!!!!!!!
  187. Need some input on CCM code 41
  188. where does this vacume connection go to?
  189. Corvette Joke
  190. Injector Question
  191. does anyone knows where this bracket goes on the 89 L98
  192. Overheating
  193. Probably a stupid question but............?
  194. Rack and Pinion Woes
  195. Stubborn TBI gasket
  196. Someone PLEASE help me with this!!
  197. Willcox Summer Sale Inclds: Interiors, Weatherstrips, Carpet and 10% off Still On!
  198. 1990 Pass Side headlight opens only half way
  199. oil cooler on a 93 lt1? which one and where to mount?
  200. 1200 hp with stock bottom end...
  201. idle and timing
  202. Code 16
  203. still missing idle
  204. Jumping from a 140amp alternator to a 200amp...WIRING?
  205. cleaning coolant system
  206. Engine cooling vs. heater
  207. Wheel locks
  208. Wheel locking lug nuts
  209. Anyone ever have an injector ohm at 50+?
  210. 87 corvette couupe glove box console base
  211. R134a capacity in a 94?
  212. Camming l98
  213. Holy crap!
  214. Cruise Control
  215. Brake Caliper Mounting Bracket Bolts
  216. roller timing chain issues
  217. ZF6 magnets, how do they work?
  218. Battery Master Switch
  219. Timing light?
  220. the whole story again
  221. dim dash cluster
  222. Blown head gasket or cracked only while warm?
  223. Need some parts info asap
  224. Air Conditioner
  225. 95 LT1 fuel pressure check assistance
  226. Which heater hose?
  227. high idle at start up
  228. car's finally home
  229. Where is fuel pump relay?
  230. 91 Parking Brake replaced, how to adjust?
  231. no "Enable Fule" signal from CCM??
  232. 92 hatch release switch voltage test question
  233. Can Someone Decipher My Codes
  234. What do you see wrong that is causing this ??????
  235. solid motor mounts
  236. Where is the in-cabin chime generated from?
  237. pulsing load on curtesy light fuse help
  238. Headlight "bright" indicator remains on
  239. Vibration followed by shifting probs on 94 automatic
  240. Help with wires !! msd 8.5
  241. Power Steering Pulley- Removal Question
  242. Vette headers will fit lt1 vette
  243. Meth/Water injection.
  244. 1985 C4. security light, door lock problems
  245. Cause of Debris in tank
  246. Replacing Fuel Tank 88 Vert
  247. new valve covers or just do up the old ones
  248. 9th injector
  249. Misc Fixes
  250. Extremely high Idle RPM