View Poll Results: HOW FAST IS YOUR SUPERBOAT ??? (GPS)
Voters: 43. You may not vote on this poll
Superboat Speeds ???
04-24-2005 | 04:27 PM
#72
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From: "SUPERBOATLAND" LONG ISLAND - NEW YORK
Re: Superboat Speeds ???
Hey DAVE
Hows she running??? Hours??? Any #'s at all to report???
I just ran side by side with the yellow new style 21 SB... 75.5 on my hendheld $99.99 GPS ...& his Gaffrig GPS SPEEDO is recalling 78.3...now that means my best of 78.4 may really have been over 80??? I gotta run two GPS's next time now. BASH may have some bigger #'s than expected. I think with the right prop & all...you should break the 80 mark...
my SOUTHERN SUPERBOAT FRIEND
Hows she running??? Hours??? Any #'s at all to report???
I just ran side by side with the yellow new style 21 SB... 75.5 on my hendheld $99.99 GPS ...& his Gaffrig GPS SPEEDO is recalling 78.3...now that means my best of 78.4 may really have been over 80??? I gotta run two GPS's next time now. BASH may have some bigger #'s than expected. I think with the right prop & all...you should break the 80 mark...
my SOUTHERN SUPERBOAT FRIEND
04-24-2005 | 04:57 PM
#73
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Joined: Jul 2004
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From: Long Island,New York
Re: Superboat Speeds ???
Originally Posted by jcap
sorry forgot to vote! im a little slow these days!
Your mystery guy has the boat that was in the rigging shop for awhile , yes i think yellow and blue stripe, john had a blower motor from mrd in it originaly claimed it would do 100 mph but never got it dialed in , John stripped the boat and sold it bare hull, this guy bought it and had mrd build the same motor as mine 509/blowershop250 he wasnt happy with speeds (86mph) and the motor blew with very few hours (less than 20) the same thing happened to my mrd 509 it sucked a valve at 20 hours! I am not pickin on mrd its just the facts! He had zul rebuild it with dual quads instead of single dominater and it now runs about 89 90. Nice guy ,met him at the Gull a few times.
Faster dammit ,
if you check back a few threads on Y2K props, I have found that a deeper drive height gave me more speed , and better bow lift, I know we all have been taught deeper is slower but trail and error have proven for my Y2K deeper is fastewr and better handling
Your mystery guy has the boat that was in the rigging shop for awhile , yes i think yellow and blue stripe, john had a blower motor from mrd in it originaly claimed it would do 100 mph but never got it dialed in , John stripped the boat and sold it bare hull, this guy bought it and had mrd build the same motor as mine 509/blowershop250 he wasnt happy with speeds (86mph) and the motor blew with very few hours (less than 20) the same thing happened to my mrd 509 it sucked a valve at 20 hours! I am not pickin on mrd its just the facts! He had zul rebuild it with dual quads instead of single dominater and it now runs about 89 90. Nice guy ,met him at the Gull a few times.
Faster dammit ,
if you check back a few threads on Y2K props, I have found that a deeper drive height gave me more speed , and better bow lift, I know we all have been taught deeper is slower but trail and error have proven for my Y2K deeper is fastewr and better handling
04-24-2005 | 05:22 PM
#74
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From: long island, newyork
Re: Superboat Speeds ???
Originally Posted by JCPERF
The guys name is Dennis.Had problems with MRD and Jimmy Extractor called to see if i could fix it.I went through his engine and it made 775 when it was done.The problem was in the fuel system in the boat.He has had it in the 90s so far.The 24 i did had a NA 540 that made 760HP.It went 101 on GPS.SCARY RIDE!!
sure did
10-10-2005 | 12:33 PM
#76
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From: Hollywood, MD, USA
Re: Superboat Speeds ???
Originally Posted by t-islands
For what it's worth.
My 05, 24 Suberboat with a 496/375 turning a bravo1P, 28 ran 77.3 MPH on GPS.
My 05, 24 Suberboat with a 496/375 turning a bravo1P, 28 ran 77.3 MPH on GPS.
10-10-2005 | 01:51 PM
#78
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From: Hollywood, MD, USA
Re: Superboat Speeds ???
Originally Posted by Superbabi
Dave I think t islands boat has the stepped bottom. Does yours ???
10-10-2005 | 02:11 PM
#79
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From: Ivoryton, CT
Re: Superboat Speeds ???
Originally Posted by Dave M
Yes, '98 was the first year with the step. I think the step might be worth 1-2 mph over the non-step.
My 1997 straight V, 415HP/502MagMPI, Bravo I 28p prop, best of 76.4mph.
The newer hull not only has the step, but it has a bit of pad and larger lifting strakes. I doubt the step does anything as these boat dance on the last 3-4ft of the hull. The pad and larger strakes likely do help.
T and D, What motor rpm you getting? I'm at about 4800...
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Patrick
Patrick
10-10-2005 | 02:48 PM
#80
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From: Lehigh Valley, PA/1000 Islands
Re: Superboat Speeds ???
Originally Posted by Pat McPherson
Could be...
My 1997 straight V, 415HP/502MagMPI, Bravo I 28p prop, best of 76.4mph.
The newer hull not only has the step, but it has a bit of pad and larger lifting strakes. I doubt the step does anything as these boat dance on the last 3-4ft of the hull. The pad and larger strakes likely do help.
T and D, What motor rpm you getting? I'm at about 4800...
My 1997 straight V, 415HP/502MagMPI, Bravo I 28p prop, best of 76.4mph.
The newer hull not only has the step, but it has a bit of pad and larger lifting strakes. I doubt the step does anything as these boat dance on the last 3-4ft of the hull. The pad and larger strakes likely do help.
T and D, What motor rpm you getting? I'm at about 4800...
I at 4800 with an occasionally hit on the rev limiter.
