LT1 | LT4 | L99 Engine Tech [Archive] - LS1LT1 Forum : LT1, LS1, Camaro, Firebird, Trans Am, Engine Tech Forums

: LT1 | LT4 | L99 Engine Tech



  1. LT1 Coolant Temp Sensor
  2. 94 new vented opti
  3. 1995 Trans Am, Bad Lower end. Options ?
  4. Question ignition control module issue on lt1
  5. ram air ls1 conversion to lt1
  6. Strange cold start (IAC valve?)
  7. ls1 coil/ pcm conversion wiring harness for lt1??
  8. iron heads to 11.5:1+cr
  9. O2 sensors
  10. Question Huge backfire now it doesn't run
  11. Advice on Optispark, waterpump?
  12. runs bad again
  13. At a loss, 95 z28 down
  14. Big oil leak 96 TA
  15. cam upgrade
  16. OBD I/II code readers only $75 at summit.
  17. New head gasket leaking oil external
  18. Question EARTHQUAKE shake in 5th & 6th Gear
  19. Crank, rods, piston selection
  20. lt1 sputtering at acceleration/codes 23,24,44,64
  21. Opti Spark?
  22. Fuel injector cleaning
  23. 96 TA Oil pressure(part 2)
  24. service engine soon light on
  25. Looking for some input
  26. Question Spark retard/Tune vs stock
  27. 96 TA oil pressure
  28. Is a 94 LT1 PCM the same as a 95 LT1 PCM?
  29. Is changing from single cat '94 to dual exhaust with dual cats legal in Nevada?
  30. No rear brakes!
  31. Oil pump??
  32. problem not fixed need help
  33. Any others had issues with Stant thermostats?
  34. LT1 Backfiring randomly
  35. 1993 firebird lt1boggs down and clicks under hood. going crazy!!!
  36. oil/coolant problem
  37. Upgrade Potential?
  38. Tips for repairs
  39. What gears do I have?
  40. Cam question
  41. Cc503 require degreeing?
  42. Question Oil pressure 18-20psi at hot idle?
  43. Question Just bought a 1994 Z28 and can't get it to start? Any help with where to start?
  44. Looking for LT-1 rebuilder in Metro Detroit
  45. Urgent will a 1996 lt1 engine work in a 1995 lt1 firebird?
  46. 1996 trans am tuner/programmer
  47. Sudden "No Start" This Morning! Help!
  48. Discuss Dropping Engine. Smokes and Needs Cleaning/gaskets
  49. Stumped on my low rpm misfire
  50. Question Datalogging- Risks?
  51. Cooling Fan Questions
  52. CAI necessary for the LT1?
  53. 96 caprice lt1 4l60e work on a 96 lt1 trans am
  54. CC503 Valve Springs
  55. Fouled plugs
  56. Question What oil to run???
  57. Question Supercharger Advice needed...
  58. Discuss Oil Cooler
  59. In denial that I need to replace the optispark
  60. How to build real power with the Lt1 !!!!!!!
  61. IM Vacuum Tee Fitting for Vented Optispark Conversion
  62. Question Almost stalls
  63. 95 Formula 383 Horrible vibration
  64. Just looking for some input on my wheels
  65. My port matched heads...
  66. Changing opti, possible leak, need advice on attached pics
  67. Idle surge issue advice needed please
  68. Urgent Best price for 160*F T-stat and water pump?
  69. Urgent cam swap now runs like shit
  70. Oil pressure, low voltage, rough ilde/rev
  71. Pulling the VIN off of my block
  72. codes p0132 and p0152 AGAIN
  73. New Delphi Prep?
  74. Difference in optispark models
  75. LT1 build advise
  76. Back firing while trying to start
  77. Question 1994 lt1 hardstart
  78. Urgent Having oil pressure problems :(
  79. Lt1 vs ls1
  80. Best spark plug wires
  81. Summit stroker kit
  82. Opti mod for 411 swap
  83. 1995 LT1 start then dies
  84. LT1 Starts and Stalls
  85. Tuning Guidence
  86. Coolent steam tube gasket leaking ?
  87. difference between an ls1 stall and lt1 stall
  88. Lt1 in ratrod running terribly.
  89. Im dumping coolant on cold starts.
  90. LT1 Powermaster XS Torque Starter
  91. Shocking find
  92. Vacuum help
  93. New exhaust dyno #'s
  94. id help!
  95. lt1 cranks but wont start
  96. MAF bad or just needs to be reacalibrated?
  97. Check gauges light then rough idle on lt1
  98. 94 Trans Am, Rough Idle and More
  99. Oil System Prime with LS7 Lifters ?
  100. Urgent 94 z-28 - Cant find a solution to my hesitation! Need help!
  101. Question O2 sensor
  102. Rattle noise in engine compartment
  103. Can a tune increase gas mileage for an 93 TA?
  104. Optispark bearing
  105. Question Rear Main Seal Replacement
  106. Lt1 Coolent loss help
  107. Backfire and misfire 95 z28
  108. No ac voltage at ICM
  109. rough idle now no start
  110. One spark plug (middle on the driver's side) looks oil-covered. Can a tune help?
  111. Need some help
  112. dyno tune near phila
  113. Getting distributor cap off
  114. Question TPiS Mini Ram Manifold
  115. Maxlife or Mobil 1, Oil Pressure?
  116. who can tune my computer?
  117. Lt1 intake questions
  118. Question Oil leak
  119. 1.6 roller rockers
  120. cruise to WOT tuning....
  121. Question Mods/Potential gains
  122. Help valve covers!
  123. Question Billet Timing cover LT1
  124. 96 firebird formula battery cables
  125. please help
  126. Best places for parts
  127. Tuning
  128. Question confused?
  129. cam part number
  130. Guess My Horsepower
  131. New Vaccum Lines??
  132. Long tubes and new duals all done...
  133. Really weird electrical short that no one seems to have experienced...
  134. Water Pump / Optispark Replaced!
  135. 96 swap into 94
  136. lt1 tuning
  137. Question where can i get a gen I DELPHI optispark without going online?
  138. Quoting out Rear Ends
  139. 396 build in progress! Cam suggestions
  140. Urgent Lt1 trans am not working PLEASE HELP! NEW HERE!
  141. Question Matching gauges
  142. Coolant temp sensor 1+2 wire
  143. DTC 53 system voltage too high
  144. turboing an lt1? have the chance to buy a kit
  145. Discuss LT1 Power Inquiry
  146. Question 383 build
  147. Question Good Starter?
  148. Question please help 500whp goal
  149. Valve springs and roller rockers
  150. LT1/LT4 Engine Builders (Mid-Atlantic Area)?
  151. Upper Front End Motor Noise
  152. Question LT-1 in a 68 EL Camino, Headers?
  153. rear end problem need help asap
  154. Question A 500 whp LT1
  155. need info on my tune for my 93z
  156. PNP switch
  157. Question Alternator not charging after sitting... Read On.
  158. Help!
  159. LT1 T56 bleed issue
  160. What are your fuel pressure readings on a 95 LT1 Supply and Return
  161. Misfire when hot
  162. IAC position vs Idle
  163. Head and Intake porting
  164. Gen 1/2 block interchangeable?
  165. Question 1989 c1500 lt1 swap problems
  166. lt1 header question
  167. 93 T/A, bypassed VATS, still need help
  168. LT1 fuel problems
  169. 95 Camaro Computer swap
  170. Possible throttle cable prob
  171. MSD Opti on ebay
  172. 383 stroker Build
  173. just bought first lt1 6 speed were do i start? (PICS)
  174. Question need help!!
  175. Wiring/PCM Issue
  176. Question Fan switch
  177. 97 lt1 intake
  178. About to drop the lt1 in
  179. Hypertech to change rear gear ratio
  180. Question MSD Opti 83811
  181. CC 503 cam
  182. Question 17,000 Miles lt1 C4 Engine??
  183. Help me diagnose my problem? No spark!
  184. Question Electric Water Pump???
  185. Fuel Injector Brands
  186. Overdrive misfire
  187. 1996 LT1 not running correctly
  188. LT1 Cranks, has spark & fuel, no start
  189. Time to get serious, rebuild part 2
  190. Is this my opti gone?
  191. a few general questions
  192. removal of underdrive pully
  193. 24x Conversion - Harness Pics Before & After
  194. Fouled plugs??
  195. Calibrating MAF
  196. FI vs N/A? Watch this video.
  197. Diagnosing a Problem
  198. Dying Formula...?
  199. Question Canton Oil Pan Question?
  200. Weird......
  201. Question Trans AM LT1 - rebuild engine
  202. Low MPG's
  203. 1993 lt1 harmonic balancer
  204. Question Custom Cam decision? Help!
  205. Best camshaft for stock 96 trans am
  206. Urgent Ide problems
  207. hard start
  208. Question What size TB should I run???
  209. '93 Formula No Start
  210. Urgent 94 Formula no start?
  211. Motor Mounts - need new ones
  212. fuel pump volt blaster. do i really need one?
  213. GMPP beehive spring kit $350?
  214. 94 z28 dies when engine gets warm
  215. Starting issue/have to give gas
  216. msd 6AL install onto my lt1
  217. head studs overheating questions
  218. crank choice?
  219. need some advice on engine rebuild
  220. Put 1996 lt1 'vette engine and 4l60e trans into 94 Trans am, do-able?
  221. Electric Water Pump - Questions
  222. Replaced my starter and now it wont crank?
  223. Ohio Crankshaft 383 super kit
  224. Very high idle
  225. LT1 swap, is it worth the trouble?
  226. Question Car overheats until it is warmed up.
  227. cheap low 12 second car
  228. Discuss Spark plugs
  229. Urgent 1996 trans am ws6 problems
  230. engine turns over slow, huge amp draw
  231. Ignition troubles
  232. coolant problem
  233. oil pressure problem
  234. 94 LT1 No start without starting fluid
  235. Question 95 Camaro Z28 Spark Plugs
  236. Pistons and rods
  237. Choosing the plugs
  238. Urgent Need help
  239. O2 Question
  240. Urgent 1996 LT-1 Trans Am coolant leak, need help
  241. Question Opti style converting old to new
  242. Question Help
  243. how to test for spark thru an opti WITHOUT having it installed!
  244. LT1 hesitation
  245. Help! Gbody headers on a fbody?
  246. Mass air vs speed density
  247. PN Needed for EVAP Solenoid Bracket
  248. GTP injectors in lt1
  249. LT1 rebuild piston's and Rods
  250. No start condition