View Full Version : General Q & A




  1. Mismatched engines (heads)
  2. wwwTOPDJcom
  3. Holley 4BBL Adjustment
  4. Gel coat repair
  5. 4/7 swap
  6. Does Mobil 1 Oil filter have anti drainback valve?
  7. Seebold Radar Gun on Ebay!
  8. 500EFI Oil Filter????
  9. salt water
  10. Cam Dynamics Question....
  11. Edelbrock heads
  12. exhaust...preventing water from entering?
  13. Cam driven water pumps and engine temp?
  14. Need a 496???
  15. what's a decent piston for blower application
  16. Closed cooling heat exchanger formula???
  17. Normal water temp on 350 260HP?
  18. Max RPM for 350 MPI? Safe
  19. Hydraulic roller cams: RPM
  20. Help Finding Engine Hatch Air Intake Louvers
  21. EFI Powerpacks?
  22. what sould a 1987 scarab III 34 ft weigh ?
  23. Engine Oil Temp
  24. New paint job advice
  25. H- beam connecting rod weight
  26. hydraulic assist steering problem
  27. Top Gun Wiring Diagrams Needed
  28. 572 buildup questions (long)
  29. 454 Mag / Bravo 1 vibration
  30. HP500 oil stat ?
  31. Hp500rpm
  32. Best carb Holley or Quadrajet???
  33. Sucked up plastic bag in one of my low water pick-ups, Help!
  34. Deadrise 21 degrees vs 24 degrees?
  35. cam degreeing?
  36. do i need special bearings for roller cam?
  37. Darin/Houston Prop - What's this?
  38. Seawater pump impeller orientation 454 MAG MPI
  39. Wanted: Boat for magazine article - Supercharger install
  40. Gauges
  41. 350 vs. 350 Mag mpi...just swapped...now prop?
  42. SEMA Show Photos
  43. 350 to 454 conversion
  44. 600SC Cam Spec's
  45. Engine alignment tool
  46. Deep-V Hull Suggestion 100+
  47. extension box+stern jack
  48. Weiand Blower Question
  49. Head Gasket In HP500EFI Casues Failure?
  50. Looking For Blown Formula
  51. Looking for a skeg guard and trim switch
  52. houston prop
  53. Head Games-AFR
  54. Rotary Guide steering
  55. pushrod problem + cylinder head bolt problem
  56. Re-Wiring Gauges
  57. It's all in the TIMING.....
  58. Have somebodey built own bolster??
  59. What kind of trim tabs?
  60. whathappens if i put hi-lift springs to a low lift cam
  61. HP500 and hp500efi
  62. pushrods bb-chevy
  63. any idea what is fair?
  64. Convert XR dual pickup to just lower…..
  65. Spark Arrestor Clearance Issue
  66. Aeromotive belt driven fuel pump
  67. steering parts ?
  68. Old sbc ignition control module
  69. North Stat boat engine
  70. Need more air??
  71. Fuel pumps: elect. or mech.?
  72. When to change Inline Fuel Filter
  73. az speed and marine 502 efi cam set ups ?
  74. 1998 502 efi cam?
  75. How fast is a 96' 22 Scarab with 502/415hp?
  76. MK4 to MK6
  77. 33' fountain twins?
  78. cam's
  79. Prop Rotation, Hook and a Panther
  80. 2 piece timing cover
  81. water cross over
  82. SSM Prop interchange
  83. Changing drums to disc braks???
  84. How to pull a motor?
  85. Dry Headers on a Bravo setup.
  86. Labbed Mirage
  87. 100 hr Service
  88. quick one, torque
  89. Procharger
  90. 00 hp 500 valve springs
  91. Cam timing
  92. cast parts and blowers?
  93. Blackhawk Drive Pros & Cons
  94. looking for hi-perf couplings
  95. OIL Breather's
  96. Zz 572
  97. bore size?
  98. 500 EFI's with 250 Hours
  99. Rebuilding Velvet Drive's
  100. Hook in Bottom of Outlaw
  101. FYI,Houston Prop
  102. Reversion
  103. latham steering
  104. Fords new alloy 5.4 engine
  105. which dipstick & tube
  106. Bravo drive replacement/upgrade question. Help Please.
  107. az speed and marine 8.1 l engine ?
  108. Can you mix Synthetic out drive oil
  109. Prop rotation again
  110. Vortec heads
  111. Need Single Plane Intakes!!
  112. Merlin 310 vs. GM square port
  113. Help, broken gimbal, now blown drive.
  114. Best place to buy inconnel valves
  115. 525 EFI vs. 575SCi
  116. How to Idle Down a Blown 454 To limit Outdrive Gear Stress and Turn Large Prop
  117. Blower trivia
  118. OT GM mechanics ? Venture van
  119. single or dual plane EFI
  120. Holley Red Fuel Pump
  121. 28 cig the search goes on.
  122. Whats a used 575sc kit worth?
  123. Mark IV 330hp
  124. Boat not stable with new motor at top speed
  125. How can you tell the difference between (large shaft)#4's and #5's?
  126. nose cones
  127. Carbon Fiber Top Gun
  128. Throttle position
  129. Engines- "The Sonic Project"
  130. Gear ratios
  131. Once again a valve train question on the 500 EFI'S
  132. Calling the stepped hull gods
  133. what valves are these?
  134. Recalibrating MEFIs
  135. Leaking steering cylinder?
  136. K-Plane question
  137. How Do you Plum your Intercooler?
  138. GPS Question
  139. 1998 454EFI Throttlebody butterfly opening??
  140. Prop change?
  141. Single or Dual plane intake manifold?
  142. Bravo 1 broke
  143. Improving 500 EFI heads?
  144. Fogging MPI engines with cool fuel
  145. Can I spray soapy water on my 502 ?
  146. B&M 174 bolts
  147. NICKED UP? FIX IT UP!
  148. 1993 502 Mag?? What would you do?
  149. Looking for more Horsepower, try this...
  150. 2000 hp 500s
  151. Alternator output
  152. Fuel Pressure (Carbed motor) ??
  153. trailer brakes
  154. 454 Whats it??
  155. new exhaust,now more water pressure
  156. 500hp high fuel pressure
  157. steering adjustment
  158. Scarab KV - need some help
  159. Bad compression
  160. CD vs Induction Ignition
  161. m&m steering
  162. Battery connection reversed
  163. Oil pressure senders
  164. Tab question
  165. 28 Daytona at Lightning Bay Marine
  166. No water out of CMI header!
  167. Big block losing oil into water jacket?
  168. What are the best oil coolers?
  169. HPI Muffler results 500HP
  170. 500EFI Modification's
  171. 454 mag build up
  172. solid, roller or hydraulic?
  173. Priming oil system question
  174. Oil pressure difference
  175. Winterization Question
  176. Need help, oil analysis?
  177. Heat blew my engine
  178. oem service bulletin
  179. New Ignition System
  180. Can we add Superchargers?
  181. What carb ?
  182. outboard ecu programming/chip tuning
  183. MYCO Trailer brakes problem?
  184. Exhaust manifolds for 502
  185. ammeters
  186. Donzi 22 Classic Performance
  187. YIKES! Waddya think?
  188. sea water pump leak
  189. Rev Limiter shopping again, need suggestions
  190. New paint questions?
  191. Who's got the best 28' Cat
  192. Oil in a B & M blower 525 hawk engine
  193. Trim Switch Replacement
  194. What type of gasket do I use for Merlin heads ?
  195. 509 dyno results
  196. Arizona Speed / CMI Exhaust
  197. need different props?
  198. Fuel pick up 1/2" or 3/8", does it really make a diff.?
  199. Wet Transom and other gotcha's
  200. B1 drive trim problem
  201. Loosing RPM's HELP!!
  202. Procharger and Whipple Stage 2 MAP Problem
  203. WINTERIZING - the full way!
  204. H.O. Winterizing ?
  205. 502 Efi - need for more speed
  206. Any tips on doing engine alignments?
  207. Mercury computor readers / modifiers
  208. Leakdown tests?
  209. Got Milk Again.....
  210. HP engine mounts
  211. Broken propshaft
  212. bravo 1 drive refinishing ?
  213. merc sea pump/fuel pump
  214. Aeromotive feul pump ???
  215. Maximum Cruise RPM for 496 Mag HO?
  216. 454 Problem - Advise?
  217. How to winterize A/C?
  218. lost 350rpm and 4mph
  219. Rich Condition at idle
  220. 540 Attack Dog ??
  221. No Water pressure to sink
  222. Stainless Marine Hi-Torque III
  223. 28 Skater dashboards
  224. How long will aluminum heads and intake last in freshwater?
  225. Ignition w/a B&M 174
  226. 455 Buick
  227. Merc. 575
  228. Outdrive inspection
  229. Dual Bravo Drive Temp Gauge?
  230. By-passing water around tailpipes?
  231. Engine identification
  232. Merc. 800 SC
  233. BBC valve cover spacers...
  234. Sea Strainer Mounting
  235. Bogging down engine, need help
  236. 427 Tall Deck Block
  237. System1 Oil Filters
  238. Procharger/ R-Tech Supercooler
  239. 8.1 vortec motor
  240. Help?? Weird sticking valve problem!
  241. props
  242. need new prop have more hp
  243. New Ridgid cordless tools at home depot
  244. oil pumps
  245. Prop for hole shot
  246. monoblade throttle body
  247. Electric fuel pressure
  248. pressure/leak test headers
  249. Trim Cylinder Rebuild
  250. Tapered wrist pins??
  251. Boat painting
  252. 540 Bulldog
  253. John B
  254. where can i get aspeed master IIII repaired ?
  255. Pitch Drop going to 5 Blades
  256. 500HP Reliablity & Time Untill Re-Build...
  257. Total Seal Rings / Pros and Cons
  258. Rebuilding Speedmaster 6's (question)
  259. Boat Almost Sunk - POS Fitting!
  260. 350 magnum?
  261. Convert 496Mag to 496Ho
  262. Dennis Moore, John B, and the HP500 EFI
  263. Blown 502MPI Makes 1000 HP?
  264. Trim Tab Switches on Shifter
  265. drive spacers
  266. What is a 454 worth?
  267. Low or no oil pressure
  268. More HP Needed
  269. pitot tube
  270. Tuning baselines for BG stage 3 carbs and 575hp chevys
  271. 525efi
  272. New fuel tanks, now motors will not go past 4500rpm
  273. Can you put bushings in Dominator throttle shafts?
  274. Broke a 575 SCi
  275. Engine Cover Lifts
  276. throttle lever extention kit?
  277. winterizing your cigeratte
  278. New project officially begins now!!
  279. Intercooler Repair
  280. HPI mufflers-any trails yet?
  281. Cam for HP3
  282. Tailpipe Question ???
  283. Formula Amp location
  284. Truck Brakes gone!!!
  285. 489 Cam Selection
  286. roller cams, adjusting
  287. Merc 525sc???
  288. Long crank time for starting?
  289. Blue impellers
  290. old 4.3 to new 350mpi swap
  291. Sterling Engines/Lifter oiler bar/Spring oiler bar
  292. Octain booster, need better fuel for return trip to states
  293. Best Heads for 509 MPI with 236/244 crane cam
  294. O/T truck oil/trans temp sensors
  295. Dollies???
  296. If your ingintio module overides timing adjustments?
  297. 502 Pistons
  298. Help! More Speed - Same Reliability
  299. Checking valve springs
  300. Engine overheating at high speed
  301. Whats the best cam for my engines?
  302. Fram or AC oil filter #, '99 502MPI
  303. New Motor Options
  304. Removing 3M 5200 may be possible
  305. Can I lower my peak power rpm with a 4 hole spacer?
  306. Houston Prop Thumbs Up
  307. Courtesy lights
  308. Shorter good breathing flame arrestors??
  309. Cam Change for my 406?
  310. Oil cooler recomendations
  311. 575 SC tweaking??
  312. BBC Head Casting #'s
  313. 406 Stoker with missfire
  314. Another TRS topic
  315. Question for Dennis Moore...
  316. Has anybody had success procharging a 7.4L MPI?
  317. Is this head repairable?
  318. What's the supposed advantage of 5 blade props?
  319. speed upgrdes
  320. Surprising results on Merc exhaust
  321. Drive lowers itself - while sitting??
  322. 2950 PSI = x HP?
  323. Compresion and HP. What are the relation?
  324. Help Bravo Drive Stand?
  325. Mercury engineering problems!
  326. 500efi troubles
  327. question for dennis moore?
  328. Latham Steering Fittings Split?!!!
  329. Show me your Nose cones....
  330. Polyester gelcoat on epoxy
  331. Faria Gauges - FOGGING
  332. mark IV 502 cu.in. bore?
  333. Most rliable Mercury racing?
  334. HELP! - Warranty Info Needed
  335. lifter failer
  336. what cam is this
  337. Electric fuel pumps - HP500 carb motors
  338. Low Oil Pressure
  339. Idle speed and reversion
  340. Bigger Power
  341. 2.5 efi offshore race powerheads
  342. Oil on center plugs on 500 EFI?
  343. HP 500 carb + Gill + Silent Choice = Reversion?
  344. anyone try an extension box on a88 28' scarab
  345. Question about reversion and superchargers
  346. what is the cubes of this moter ?
  347. v-hull or cat?
  348. leak at transom plate
  349. Help Helpppp Need Motor Mounts
  350. Fuel pumps
  351. Engine Oil drain kits
  352. Pitted Intake Valves and Seats
  353. Is there something wrong?
  354. where is the 500$ hydraulic steering thread?
  355. chip for Powerstroke??
  356. 6.2L performance mods...again.
  357. Test on labbed sportmaster!
  358. HP500 Crane 169611
  359. Question on crash boxes
  360. Camshaft and reversion?
  361. What is the 454 LXI?
  362. Blowing outdrives - Why???
  363. HP 500 with 256 blowers
  364. 502 mpi head upgrades
  365. XR top cap- is it billet/stout?
  366. xz lower
  367. Imco upper shaft
  368. Extension Boxes??
  369. What did I do? (Carb adjustment) Long..
  370. stingray hydrofiol
  371. ECM reading with a PC ??? can it work ??
  372. 7.4MPI Hop-Ups
  373. 400 Sbc
  374. Perma Cool Oil T-Stats?
  375. Tomcat-bypass Valve ?
  376. Can or how can you tell drive ratio on boat
  377. Keith Eckert aluminum headers
  378. I need cabin door parts
  379. Rtech supercooler pictures
  380. Y Pipe Fix - 454 Mag MPI/Bravo 1
  381. Hp 500
  382. Damaged skeg question.
  383. repower: 496 HO or 502 Mag
  384. Building a bigger bulldog
  385. what should the compression be?
  386. HP 500 Carb Jetting
  387. Big Block Vortec heads airflow data...?
  388. blower on a stock 502 mag. ???
  389. 496ho
  390. Trim pump reservoir
  391. Crane Hi-6 rev limiter question
  392. Drive Alignment
  393. speedometer
  394. Speedmaster props Small to Large spline
  395. Blower Motor suggestions
  396. removing throttles and shifters?
  397. prop nut torque
  398. broken engine
  399. Merc Outboard Warranty
  400. arctic cat sled heads needed...
  401. Low or no oil pressure
  402. Speeds salt vs fresh water (v bottom)?
  403. Milky drive oil
  404. scarabIII named in excess
  405. Gen. V 420
  406. gimble bearing alinement
  407. Converting exhaust riser cooling to jumper hose style.
  408. Imco vs. CMI vs. Eddie Marine
  409. How much power will I need to go 80?
  410. new moter
  411. 160 psi is what compression ratio
  412. Elavation this matters
  413. 502 Mag (Carb.) concerns or upgrades?
  414. props
  415. HP increase?
  416. Spark Plugs
  417. Rtech supercharging system update
  418. Who is Von Schlick???
  419. Steam from breathers?
  420. kill switches
  421. iBlonde needs help!
  422. scarabeman34 would like to talk to you in chat room
  423. Ever heard of a RIO???
  424. Help me find right Propp to my Pantera 24
  425. Help me find right propp
  426. Volvo DPX "E" series props
  427. compression johnson 185 hp
  428. horsepower
  429. performance exhaust manifold SBC
  430. Best Bravo Upgrade Parts?
  431. Which Drive:XZ or XR?
  432. Switch from Holley to Q-jet with adapter
  433. baja
  434. Im Confused
  435. Valve Train, GM vs. Aftermarket
  436. Lost RPM
  437. Engine RPM
  438. Which Intake Should I Use
  439. Flaps in Exhaust Y-pipe
  440. What paint to use
  441. What does it take to replace TRS drives?
  442. Motor mounting for SSM V
  443. Drive shift cable adjustment
  444. best boat?
  445. Cam specs for Merc 525 EFI?
  446. Wich Igniton System to Use
  447. 50% increase in prices on the parts I need. anyone have these?
  448. Gen VI - starter motor bolt pattern ?
  449. K-Plane resevoir milkshake
  450. Oil Temp. question
  451. Broken housing on lower unit
  452. Best place to buy stainless hydraulic (trim) hoses?
  453. Drive/HP question
  454. How high above the water line should your exhaust be?
  455. Dart Intake height
  456. Best Oil Coolers
  457. 496MAG vs. 496MAG HO
  458. Help setting the timing on HP500EFI
  459. 2 Stage Sea Pump
  460. Need to adjust how fast my K-plane moves
  461. Yamaha what year??
  462. Anyone ever try a chopper prop on an I/O
  463. Hot Alternator
  464. Bent Skeg
  465. 720 hp gm big blocks
  466. 1998 502efi stalling ?
  467. Need parts help on SSM 3A's???
  468. 454 Mag MPI Speed
  469. Drive alignment
  470. B1 trim adjustment
  471. Sticking trim switch
  472. Water Temps?
  473. timing for HP 500
  474. Proping question...
  475. Sticky Steering! Please Help.
  476. Voltage Issue
  477. Will these help?
  478. Looking for good vinyl cleaner
  479. 38 Wellcraft Scarab KV - how much power
  480. What size carb?
  481. Trolling with outdrive in up position??
  482. Impeller Change
  483. 575/xr reliability in a bigger single
  484. Looking to switch back to N/A motors
  485. Hydraulic helm question
  486. Chiller Question
  487. 540 BBC
  488. 502 Mangnum EFI No Oil Pressure
  489. Am I crazy?
  490. Identify which 502
  491. Bravo drive gear change to 1.50
  492. 454 Mag MPI Hop-Ups - Will this work ??
  493. 7.4 has no power above 3000rpm's
  494. Props or tabs
  495. Carb Base Gaskets
  496. Small block and Big block kits
  497. ****!ng Oil Fill Caps!
  498. Blown head gasket after Big Dicks
  499. How many hours before rebuild?
  500. spun bearings & new oil coolers