24 & 7 Boats
03-12-2010, 01:33 PM
#92
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Join Date: Apr 2009
Location: lake murray, SC
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Well I blew a head gasket and cracked the head and block. I came across a new 468 for 3000 bucks and sold the blown up stuff. I never saw top speed numbers with the 502 before it blew the head gasket. I hit 62 with a 29p prop, but was only turning like 4000 rpm with the 468. I am about to try a 25 mercury revolution 4 as soon as it warms up and I get my carb back. I am hoping to see 75mph.
03-12-2010, 05:16 PM
#93
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09-08-2010, 07:26 AM
#96
I run a 250 Merc EFI on my 1981 Pantera, my motor is tired, and needs a freshening(and some mods
), runs 58.9 on GPS, handles good, not great, which I actually attribute to being underpowerd, it handles great, as long as you are accelerating, but when out of power it seems to want to fall off the pad at WOT. A 300, or better yet, a Simon, or Shawn Torrente worked 300 would be optimum, and probably touch 70.
09-08-2010, 07:47 AM
#97
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A late model 24 Superboat will run in the upper 70's with a 300 OB.
As far as handling, I can only comment on the I/O version. You won't get outrun very often by a comparable size and powered boat in rough or flat water.
As far as handling, I can only comment on the I/O version. You won't get outrun very often by a comparable size and powered boat in rough or flat water.
09-08-2010, 11:19 AM
#98
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Location: Central City, La
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I am getting an old school 25 Martini, and it was converted to outboard. Has a bracket and a 200 merc on it right now.
When I get it it will not have an engine. Been looking at options for powering it. A phase II or III Yamaha putting out 320ish would be nice. 70s with a 50ish cruise speed. Iam going to need some trim tabs though. Would 280's be about the right size? Thanks for the info so far.
When I get it it will not have an engine. Been looking at options for powering it. A phase II or III Yamaha putting out 320ish would be nice. 70s with a 50ish cruise speed. Iam going to need some trim tabs though. Would 280's be about the right size? Thanks for the info so far.
09-08-2010, 12:18 PM
#99
I am getting an old school 25 Martini, and it was converted to outboard. Has a bracket and a 200 merc on it right now.
When I get it it will not have an engine. Been looking at options for powering it. A phase II or III Yamaha putting out 320ish would be nice. 70s with a 50ish cruise speed. Iam going to need some trim tabs though. Would 280's be about the right size? Thanks for the info so far.
When I get it it will not have an engine. Been looking at options for powering it. A phase II or III Yamaha putting out 320ish would be nice. 70s with a 50ish cruise speed. Iam going to need some trim tabs though. Would 280's be about the right size? Thanks for the info so far.
