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  1. Q

    Old Yamaha FXHO MR1 as quick as they get

    Wee link to the GPS tracker the last time the old FXHO had a run. For those that are familiar with this model, she is pushing the boundaries for a naturally aspirated ski then some. Amazing 67 mph gps from this thing is incredible. She is usually a steady 63-65 but the last run shows a peak 67...
  2. Q

    Mercruiser GM V6 and V8 oil pressure

    Hi all On my own MPi V8 and any other GM V6 and V8 I’ve ever had or been on, the oil pressure at idle and good oil has always been around 40 psi at idle and at worst about 35psi at idle with used oil. I was literally just watching a water test from a local dealer there. He was showing the...
  3. Q

    Yam 225 v6 2 stroke exhaust drilling

    Childish and silly, I realise, but does anyone have exact and precise guidelines about drilling the exhaust chamber to exit above the waterline? thanks in advance.
  4. Q

    7.4 mpi same mounts as small block

    Hi Does the big block 7.4 mpi have the same engine mount footprint as the short block 5.0/5.7 mpi would it drop right in ? thanks.
  5. Q

    Any improvement noticed by porting etc ?

    Hi Im aware that GM engines we all know and love so well, although reliable and robust things...they are perhaps not exactly cutting edge or the finest example of precision engineering. I was recently told from a fella, about how he saw a noticeable difference in his 4.3 motor, after porting...
  6. Q

    Mercury command thrust trim anode fin

    Likely not a common thing but thought I’d see if anyone had been there before. had anyone had any decent results to reduce torque steer on the larger gear case outboards (without power steering or anti feedback steering) by fitting a trim anode fin ? I’ve just managed to order the special...
  7. Q

    4.3 mpi rpm limiter exact setting

    Hi ive looked online for last wee while but can’t easily find the exact rpm limiter setting for the 4.3 mpi. trying to prop a boat for starters and don’t have any exact indication with not having the smart craft or vessel view set up yet. On a friends new boat and wanting me to have a go at a...
  8. Q

    Origo dometic 1500 (Where to find)

    Long shot really, but wondering if any of my North American ship mates might know of a means to get an Origo or dometic 1500 model single burner alcohol stove to me ? One of my boats came fitted with one of these from new. Mine was missing when I bought her. They don’t make them anymore and like...
  9. Q

    TRS or Bravo even Bravo XR ?

    I’ll keep this brief. Long story short. I’m trying to help a boating friend best I can with a ridiculous machine he has almost completed. But such a machine is not what I’m used to at all. Far from it. He has one of only 18 built tunnel hull boats. They were made in the late 70’s and one came...
  10. Q

    Quick drive question.

    Hi all just this evening I was involved in trying to identify a drive, from pics. No idea of serial number yet. likely the more experienced than I will answer this very quickly. The drive was claimed to be a pre alpha (as some say), but it has a squared cav plate like a gen 1 alpha and what...
  11. Q

    Glastron CVX16 and 150 V6

    Hi all long shot, I realise, but looking to hear from anyone that has or had, even knows of one well enough, that has similar engine. keen to hear how she goes. ive had mine for a while and managed the engine installation at least, but never got a chance to try her out. I know the current...
  12. Q

    Enertia and me boring you again

    Ok. So as most have gathered by now...I have an unhealthy (for my bank balance at least) obsession with props. I wasn’t going to bore you again, but can’t help it. I bought yet another enertia of 20” for my big gearcase mariner merc 115 CT (new model 2.1) on the 19ft cuddy. delighted to say...
  13. Q

    North American ethanol fuel is the devil !

    I always watch this guys videos with interest. Really great channel with totally neutral testing. I was aware you guys over the pond have complaints about the ethanol blended fuel and it’s issues...but my goodness, I had no idea how horrible this stuff was. Simply horrendous stuff. I’m so glad...
  14. Q

    Engine power rating on reman 5.7

    Hi all. long story short...a friend has bought a boat. Getting it delivered this week. It originally had 5.0 twin VP with 290dps it was reengined in 2012 with brand new marine crate engines of 5.7l each (merc black colour). Receipts all there but I don’t know the serial numbers yet, until I...
  15. Q

    Has someone cracked the mpi ecu ?

    I know, I know...I’m going to leave myself wide open to being called silly and come in for some comments like “just get a bigger engine” or “it’s too risky” but having searched the subject of remapping the GM mpi 555 ecu every other month or so for years, all that’s came up was the silly...
  16. Q

    The wait is over. Sharrow prop test.

    Been waiting on the first test of this, perhaps some of you have too ??Thoughts ?
  17. Q

    Identify the boat trivia

    Hi over the pond her in the U.K. some of the boffins and I are struggling to identify this boat. its 70’s and has a Chrysler V8 and drive. its likely a Scandinavian boat like a windy...but the engine is putting me off. I think it’s very like a Winner viscount...but not identical. Even quite...
  18. Q

    Tell me I’m being too pessimistic!!

    long story short... my good friend has fallen in love with a boat and after much back and forth has pulled the trigger. The type of boat won’t mean much to the North American majority but it’s a stunning 1990 princes 286 Rivera the boat, is easily worth over 20-25k in cast iron sure running...
  19. Q

    Propeller question

  20. Q

    Pvs vent holes on props ??? I don’t get it.

    Ok so I've had a few beers, but please and honest to god...someone tell me they have had a useful result out of the pvs vent hole idea !! someone tell me I’m wrong I’m thinking these are just a poor excuse for not getting your boat propped right ?? Ill go so far as to say they are as lazy as an...
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