Recent content by RVFR

  1. RVFR

    4.3 OMC Cobra and or...

    Ah-ha, there ya go, info with substance. Thank you, I never thought about looking at a manual, unfortunately, this boat didn't come with one. With that in mind, I now know what to expect. Still, though It's hard to believe there isn't a bit more, I guess if I can get to that 4600 mark I...
  2. RVFR

    4.3 OMC Cobra and or...

    Good points, LOL I'm an old guy from when10.0 to 1 was hot and 11-1 was way out there. 350hp 327 and the like, IIRC the ole Hemi was only 10.25. Yes with today's tech in computer control engines it's no wonder why we have what we have. That said, yea I have an inkling to do a compression test...
  3. RVFR

    4.3 OMC Cobra and or...

    I'm seeing I see a lot of boats in my size range with a 4.3 using a 21P and still making their RPMs, so something is fishy ;)
  4. RVFR

    4.3 OMC Cobra and or...

    I'm not so sure I would call a 4.3 low comp like a smog engine, at 9.3 that's a good mid-range for a lot of application use, like what has been stated you can run regaler at a lower advance set up, or tweak it and use supper. Think I will give the Super a try knowing it does play how well an...
  5. RVFR

    4.3 OMC Cobra and or...

    I asked this one not only for OMC guys but more for the 4.3 powerplants. I just read something that's kinda weird in that odd way, yet knowing there is definitely a difference between auto and marine engines, I have to ask. Is there more power gain when running the 4.3 on premium fuel where the...
  6. RVFR

    OMC Cobra 4.3?

    Yep, that's where I have it set. Yea, me too, love my chevy..... trucks too.
  7. RVFR

    OMC Cobra 4.3?

    where'd you find that? sheesh! I looked high and low for a diagram like that, many thanks ;)
  8. RVFR

    OMC Cobra 4.3?

    Hmmm, I knew about the 600 for that shifting reason, I didn't know about the ESA doing a quick cut, kinda like the quick shifter on sport bikes then, ok ;) While here I'm, wondering if you can recall or maybe have a photo of the timing tab. I looked up where 6 degrees should be on the zig...
  9. RVFR

    OMC Cobra 4.3?

    AWE.. ;) yea, it's a good ole Holly 2 barrel. I have had a few of their bigger cousins in a lot of the autos apart many times, so pretty comfortable digging into them, yet, it starts so good, idles somewhat ok, it's the low idle that is kind of lumpy. I can get it to 700 rpm via the tach...
  10. RVFR

    OMC Cobra 4.3?

    Wow, that is a clean unit there, you must be in part doing something as there are no exhaust manifolds. Yes, I can't count how many times I have cussed out GM for the distributor location, both on cars and trucks now this $#@! What surprised me here was yes it was electrical, yet small in...
  11. RVFR

    OMC Cobra 4.3?

    Awe you are so right about the year, in a way, I should have written the year which is 1992, thank you for the what is ;)
  12. RVFR

    OMC Cobra 4.3?

    I am a fairly new owner of a 188 sea swirl spyder sport boat with a Cobra 4.3 I/O. I'm familiar with boats in general, yet they were all outboard-driven. This is my first I/O, now that said it is pretty straightforward in figuring things out, but as I move along I find there is verbiage I...
  13. RVFR

    92 188 Spyder ?

    All righty, after a more in-depth looking thing over like changing plugs looking over fuel may be issues that was pointed out by a carb guy, then, Wa-la. I find it was looking to be the timing, LOL it was set at what looked to be 3 degrees. I say that because the timing prong shows clearly...
  14. RVFR

    92 188 Spyder ?

    Roffey, don't sweat it, I got what you were saying ;) I love info and experiences and know not everyone is the same. yet there may be clues and or similarities that need to be heard, it's all the same path, just some folks look at it from another view.
  15. RVFR

    92 188 Spyder ?

    Yes, I can agree with all that, been there with autos. LOL boats are worse when adding in corosiron too. The top to the coil had me worried it was like Holy ****! Got it cleaned up and so far it doesn't seem to be a problem, have decent voltage there. Then taking into account how easy this...
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