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  1. Scott Danforth

    Mercruiser 3.7 / 470 Holley EFI Sniper.

    for power (load pickup), you need to be in the 11.5-12 range. for moderate to light load, you can go as lean as 14:1
  2. Scott Danforth

    Mercruiser 3.7 / 470 Holley EFI Sniper.

    agree that tuning a marine carb is trial/error and plug reading especially if you do something like build custom motor are trying to dial it in...... could add an O2 bung for tuning and then plug later.
  3. Scott Danforth

    Mercruiser 3.7 / 470 Holley EFI Sniper.

    Hope you went for the Edelbrock aluminum head
  4. Scott Danforth

    Mercruiser 3.7 / 470 Holley EFI Sniper.

    Back then, the electronics were unreliable, tuning was still required for every application (even if you just swapped parts). had a custom EFI setup done with a high-end shop in Chicago for a motor back in the mid 90's. Spent $4500 on EFI only to loose 5% peak power and 7% fuel economy. I...
  5. Scott Danforth

    Old OutBoard Repair

    the manufacturer was Eska the brands were Sea King (sold thru Montgomery Wards) and about 20 other brands that Eska private labeled including Sears, Wizard, Hiawatha, etc its a tecumseh power head. https://everythingaboutboats.org/eska/
  6. Scott Danforth

    Thinking of buying a Maxum 2400 SCR. Thoughts?

    just short of seeing Alice while having a drink with the Mad Hatter..... there is a reason it is one of the most expensive hobbies in the world Here is the reference on weight and towing for those just tuning in. https://forums.iboats.com/threads/towing-more-than-capacity.753840/
  7. Scott Danforth

    aluminum profile for the glass/plexi

    welcome aboard. that profile most likely came from Taylor Made. https://boatwindshieldrepair.com/ you can contact them for replacment parts regarding the extrusions. Companies like Taylor buy the aluminum extrusions direct from the mills. they make the extrusions in 5000# runs and have...
  8. Scott Danforth

    1999 23' hurricane deck boat seats

    iBoats has a seat section. however most people on this site either sew there own covers, or find a local upholstery shop to make new skins
  9. Scott Danforth

    Replacement Ladder

    boat hardware is bought from an NMMA consortium of parts. some are from ASG (attwood/garelick/etc), some from off-shore sources. many of the ladders that were available last year may not be available this year.
  10. Scott Danforth

    1885 5.7L weak water supply to circulation pump

    start with a brand new impeller. and back-flush the bits of your missing impeller vanes from the system
  11. Scott Danforth

    Outdrive Leaking Oil

    remember, if oil is going out, water is coming in. time to pull the drive, drain it, and pressure test it to find out what is leaking
  12. Scott Danforth

    Mercruiser 3.7 / 470 Holley EFI Sniper.

    I did all my experimenting with all of the sniper predecessors (the Holley DFI systems) in the 90's and 00's I suggest keeping the carb
  13. Scott Danforth

    89 5.0 fuel pump

    Either spend the $20 and buy ine from amazon, or borrow one from the closest FLAPS (Friendly Local Auto Parts Store)
  14. Scott Danforth

    Battery State of Charge meter function

    welcome aboard. start reading on recovery voltage or voltage rebound
  15. Scott Danforth

    Towing more than capacity?

    if you are going off of published weight, your boat weight is dry. add fuel, water, gear, etc. and that is 6k alone for the boat. add your trailer and anything else you bring along and you are well over 2000# over capacity your navigator has independent rear suspension, lowering its towing...
  16. Scott Danforth

    Trailer/Lift Bunk Locations for Chaparral 21ssi

    you call the main switchboard and ask for customer service
  17. Scott Danforth

    1989 Celebrity 181BR Restoration

    here in FL, my garbage can was full of trophies (smoldering bucket of resin that kicks with a brush stuck in it) two of them got so hot they melted the plastic bucket
  18. Scott Danforth

    Trailer/Lift Bunk Locations for Chaparral 21ssi

    have you called Chap?
  19. Scott Danforth

    Parts For 1989 Cummins diesel V903 engines

    CPL is Critical Parts list. fuel pump, injectors, pistons, etc. Marine motors are over-fueled and have a fair amount different than the other off-road applications. More than just the manifolds.
  20. Scott Danforth

    Mercruiser 3.7 / 470 Holley EFI Sniper.

    if you are going to go thru the work/effort/cost of doing a holley sniper, start with a better motor/drive
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