Evolution Engine Mods [Archive] - V-Twin Forum : Harley-Davidson Motorcycle Forums

: Evolution Engine Mods


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  1. Valves reworked
  2. Doherty Power Vents
  3. Seat help
  4. Performance cam for Evo motor 1993 Dyna
  5. 92 FL electrical pains
  6. Whole new top end. where to start?
  7. 1990 80" Evo motor
  8. Compression ratio after milling heads
  9. Real new with real problems
  10. Where to find a minature O2 sensor & mounting flange
  11. Newly acquired 80 in
  12. Oil pump check
  13. S&S 96" Long block modification - max bore size
  14. Tatro machine
  15. Serrations on lower valve locator ...
  16. Anyone using Ultima cases?
  17. Cam cover won't fit due to pinion shaft nut
  18. Carb/cam changes and hard starting after sitting
  19. Stage 3 Tuning Advice (1995 Evo)
  20. 1994 EVO info
  21. Is this EVO motor worh it?
  22. Pros or cons on Ultra Evo replacement
  23. I'm doing some refreshing on my 98 Fatboy
  24. Need help with an 89" stroker
  25. Cylinder base gasket
  26. Head bolt seized on cylinder stud = spun stud!
  27. Cam for a 98 Springer
  28. 1995 EVO ignition module
  29. How many miles are too many?
  30. Upgrading my 1996 1340 Evo
  31. DS lifter blocks
  32. Red Shift 559, 10:1 Wiseco's, Manley valves+springs in a 1998 Evo Road King
  33. Head flow
  34. New member
  35. Factory black paint
  36. Chamber volume needed 80" evo
  37. Noob needing advice
  38. Jetting suggestions
  39. Cam? New build
  40. What size primary tubes?
  41. Valve springs
  42. Carb harness
  43. Andrews EV27 sweet spot
  44. Stock intake vs. Mikuni?
  45. Upgrade 1996 EVO
  46. Cam bearing to bushing
  47. '93 Evo upgrades
  48. Cam size help
  49. Pop, pop, pop
  50. Evo 120 which one to get?
  51. Flhtc 1991 air cleaner backplate
  52. JIMS Oil Pump install
  53. Rich running Road King
  54. Cam idle characteristics
  55. SE stage 2 perfomance software
  56. Evo cam question
  57. Evo CV carb jetting
  58. Axtell 88 ci quad cam first startup video
  59. Chain chafing inner primary
  60. Left case bearing insert
  61. 1984 Evolution flywheel/crank nut is loose
  62. End play
  63. Breathing--Big Sucker vs. Heavy Breather
  64. Need an Evo machine shop
  65. 1991 EVO - black engine paint
  66. Will all years fit my frame?
  67. Engine bogging down
  68. 1998 Road King hesitation/backfire
  69. S&S 113" made in 2002, any issues?
  70. S&S superstock heads
  71. What oil should be used on new rebuild
  72. Evo stock wheel clean up - question on powder coat
  73. EVO head identification
  74. Is 115# compression good?
  75. Need late model Evo Crank sensor screws p/n
  76. What difference in Rush baffles make?
  77. Question on assembly lube
  78. The need to breathe
  79. Looking for camshaft specs 80ci Evo
  80. FXR keeps needing spark plugs
  81. 98 RG EVO PM at 45K miles
  82. No oil presure
  83. Machining for a compression release
  84. EV27 cam/case interference
  85. Good ignition system for EVO
  86. What a bolt in cam (ev27) decked heads and port job feels like
  87. Head breather cases
  88. Help me out here please
  89. High oil pressure
  90. Wtf
  91. Lifters
  92. Mikuni jet/tuning recomendations
  93. Cam bearing?
  94. Ultima 113 surprised everyone
  95. Voes
  96. Crankcase year
  97. Cylinder location dowels (removal?)
  98. Need of better exhaust
  99. What's gonna break 1st?
  100. No spark?
  101. Need help diagnosing engine bogging ('98 evo)
  102. Andrews EV27 cam
  103. Starter question
  104. Rebuild options
  105. 98 Evo looking 4 some more power
  106. Crank and cam position sensors on 95' FLT
  107. 92 cases, 88 motor parts DONE! w/ pics
  108. Cam question and heads
  109. STD Evolution cylinder heads
  110. 127 El Bruto cam suggestion
  111. Compression
  112. 1997 flhri
  113. Help, stuttering that feels like fuel starvation
  114. S&S Super G Shorty jetting?
  115. Evo rebuild ring end gaps
  116. Crane cam hi-1 dual fire ignition questions
  117. Cam upgrade/flame thrower?
  118. Idle not really changing
  119. 99 nightrain build...lots of ?... advice/help needed
  120. New noise
  121. Engine vin question any ideas?
  122. 124ci s&S crate motor mods ?????
  123. Would like some "tuner Help" on a 131 evo ultima
  124. Lifter blocks
  125. Compression release installation
  126. Jerking motion when clutch in engaged
  127. 98 Fatboy neutral light issue
  128. Valve seat leaking?
  129. Need help 1988 parts going in to 92 cases
  130. S&S 124..will not run for 30 seconds
  131. Stock starter motor
  132. Pinion gear and cam?
  133. Cam and pinion measurement problems
  134. Case/cam cover question
  135. 1987 FXSTC engine balancing
  136. Has not run in 4 years
  137. Big bore cases with stock jugs?
  138. Oil cooler
  139. Bottom end for a 97" Evo
  140. Revolution performance 85" kit
  141. Ok let's talk base gaskets
  142. Carb jets, school me
  143. Axtell 97" feedback
  144. EVO cam bearing
  145. Top end rebuild and EV27 cam
  146. Just picked up a 94 Dyna Wide Glide. need cheap horsepower
  147. Andrews EV-3 in '93 EVO?
  148. Lifter question?
  149. S&S 103" Evo opinions?
  150. S&S head info
  151. Ring gap?
  152. KB pistons
  153. Adjustable pushrod covers
  154. 1989 EVO 1340 base gaskets
  155. Valve height and pressure?
  156. Wheels?
  157. 127 Ultima not firing front cylinder
  158. FNG with performance questions
  159. H&L 131 Questions and hopefully answers
  160. How much can I bore an Evo
  161. Formula to fig. CR
  162. 131 inch need a better cam
  163. What can be done about the finish of stock cylinders?
  164. S&S 113 hop up
  165. 1988 HD EVO.....is it worth the $?
  166. HARLEY SE 536 cams
  167. Compression release
  168. S&S EVO question
  169. Help ID roller tip rockers
  170. Inner primary
  171. More compression more power
  172. What carb jetting for rebuilt Evo
  173. Are there any 9.5 c.r. heads out there?
  174. Oil tank trouble
  175. Piston skirts
  176. Andrews cam
  177. V.o.e.s.?
  178. Bolt in camshaft - noticeable difference?
  179. Fatso pistons
  180. No baffle?
  181. Fatso head mods
  182. Air cleaners for Evo with Mikuni hsr42?
  183. Rod problems front cylinder
  184. Question on mikuni hsr42
  185. Question about flywheel
  186. VOES, doh ray mee
  187. Best cam for 89 inch stroker
  188. Rocker boxes
  189. Speedo issue
  190. Magna Charger on 107" S&S
  191. Exhaust size
  192. Anyone heard or have got a bad cam from Andrews?
  193. Wonder how this'll run?
  194. Oil breather at bottom of crank case problems
  195. End play on Evo cam, too much?
  196. Much talk about builds
  197. CRANE 1-1101LG & Bone Stock EVO 80
  198. CV or S&S Super-E?
  199. EV-46 and CV carb, good combo?
  200. S&S B2 manifold dimensions
  201. Head and or bottom breather
  202. Calculating C\R from cranking PSI
  203. Out of ideas, even Dynatek couldn't help
  204. S&S 113 w/520 cam upgrade or not.
  205. First COMPLETE REBUILD DONE!
  206. Edelbrock heads for Evo, any good?
  207. Max. compression for an EV46
  208. Top-end "blues"
  209. Piston hitting head
  210. Higher comp pistons
  211. WOT hesitation
  212. Has anyone tried one of these?
  213. Sounds great with a few revs then dies
  214. A good oil cooler
  215. Holding a manual compression release
  216. !999 EVO 1340 Timing marks?
  217. What is the best timing to run?
  218. cam is loud..
  219. Easy Float Bowl Drain Screw?
  220. Ok new problem... Oil tank gets full while running..
  221. cam question
  222. Ok well I breathed life into her today,, after total LOSS
  223. all a sudden today I had white smoke on start up!
  224. Never use anything but a harley manual
  225. Stage 3 enough?
  226. Need help first EVO build
  227. Having problem dialing carb all the way!
  228. HELP Info needed
  229. stator? How do I know what size AMPS it was
  230. possible manifold leak?
  231. Throttle body spacer?
  232. good ol ignition help please, dyna with harley
  233. cylinder bore question
  234. Another question.
  235. Think i damaged something. Need help.
  236. Cam install weirdness
  237. Atell 97ci Big Bore kit
  238. another cam/pinion question
  239. well I got the bike back together now no spark
  240. She started, 5x ran 8 min CAME APART LIKE A GRINDER
  241. heads back from big boyz!!!
  242. Intake valves
  243. clutch for 131
  244. Andrews EV-57 vs EV-79
  245. nose cone
  246. Camshaft end float....
  247. Carb thoughts??
  248. Killer cycle CV carb
  249. 110" Fatvo Fatso
  250. S&S Super Sidewinder bolt pattern?