Recent content by spomey

  1. S

    Volvo Penta GM 5.7 TBI low power at take-off

    in an automobile when you detonate there is a very pronounce "pinging" wont the boat do the same thing? I have listened closely for it. I understand what your saying, I do, and I know i am..randomish in my timing placement however you can estimate fairly closely, also I can measure the...
  2. S

    Volvo Penta GM 5.7 TBI low power at take-off

    Wow, I advanced the timing on the boat to I don’t know how far 8-12 degrees there are no marks on the block or the vibration damper. But damn what a difference! Comes out of the hole pretty damn good for a 4400 lb boat and the top speed is around 40-44 which is too fast for the choppy lakes...
  3. S

    Volvo Penta GM 5.7 TBI low power at take-off

    I will keep that in the memory banks but I think that is more than I am willing to do, it seems stuff is always more complicated or causes other issues LOL. I will try the 8 degrees BTDC timing do you agree with that?
  4. S

    Volvo Penta GM 5.7 TBI low power at take-off

    got it! move the 4th mark on the right to the V notch! I thought that but after talking advance and retard timing CW CCW front back I get mixed up! thank you for straightening me out. I have read a few posts stating that slightly retarding the timing increases low end torque while...
  5. S

    Volvo Penta GM 5.7 TBI low power at take-off

    Wait I read what you too many times now I am really confused lol. What do you mean left hand motor? I will take a picture of what I have then I can’t over think it !
  6. S

    Volvo Penta GM 5.7 TBI low power at take-off

    Just to make sure I understand I am looking at the rear of the motor, I want to move the 4th mark to the right of the large line to the v, in base timing mode. Why is it so different from truck timing?
  7. S

    Volvo Penta GM 5.7 TBI low power at take-off

    For the timing… I get confused, there is a stationary “v” on the engine, and the engine rotates CCW (damn I think) so I move the distributor so the vibration damper mark moves 8 degrees to the right of the v notch 8 degrees, I think there are 2 degree marks on the vibration damper. Is that...
  8. S

    Volvo Penta GM 5.7 TBI low power at take-off

    I don’t feel I need a huge gain just a bit for tubes and wakeboards so they can pop up, and not drag along, I don’t use top speed at all. I don’t know they are F5 front and rear and I don’t know anything about duo props or Volvo stuff
  9. S

    Volvo Penta GM 5.7 TBI low power at take-off

    Agree I just need to optimize what is available and if there is a simple torque /hp increase, do that. Do they have a performance chips for boats? I know I can change props but duo props are a spendy last resort
  10. S

    Volvo Penta GM 5.7 TBI low power at take-off

    I have the round distributor, I can set it at 8 and try it, all i could find besides what you say is set it at 0 degrees in base mode. zero was better than 2 I will say that bt I will try 8 degrees, oh BTW I am about 4500 ft in elevation if that matters.
  11. S

    Volvo Penta GM 5.7 TBI low power at take-off

    When setting timing I set it right at zero. Here is a weird thing. The engine surges between 1500 and 2000 (takes about 10 seconds per surge) but the timing stays at 0. If I advance the timing it smooths out. But…. I have been reading and it seems regarding the timing adds low end torque have...
  12. S

    Volvo Penta GM 5.7 TBI low power at take-off

    The motor is 5.7 GSI (I am pretty sure although I don’t know the differences between the models) The issue is Kindof new. I didn’t notice it on the first few trips just out paying with the new boat, then it started missing I checked compressing and 3-5 cylinders had no compression. Replaced the...
  13. S

    Volvo Penta GM 5.7 TBI low power at take-off

    I know most people want more power in a boat, in my case I have a 23 foot sportdeck Chris Craft. the boat weighs 4400 lbs it has the duo prop. The issue is at take off all seems good, as the boat starts to move and the RPM increases it falls on ts face around 2000 RPM for a second then...
  14. S

    Tube bladder Bulging

    my ex03 tube from HO did the exact same thing, a chamber ring failed and made the tube unusable. looking to see if they will warranty it or something
  15. S

    please help timing issue is the expected issue help!

    OK so I got everything working and surprisingly I wind up selling that boat! Thank you so much for all of your help now I’m working on the boat I replaced it with is a 23 foot Chris craft 1999 vintage. It has the Volvo Penta with the Chevrolet 5.7 TVI engine when I go to set the timing long...
See more
Top