Offshoreonly.com

Offshoreonly.com (https://www.offshoreonly.com/forums/)
-   General Boating Discussion (https://www.offshoreonly.com/forums/general-boating-discussion-51/)
-   -   30 Sportster OB by Phantom Powerboats (https://www.offshoreonly.com/forums/general-boating-discussion/267514-30-sportster-ob-phantom-powerboats.html)

KEVLARKAT32 12-21-2011 02:01 PM

They look like 25 inch engines and that is why they are so jacked up ?

Toffen 12-21-2011 02:40 PM

Hi,

Its 25 so therefore they look tall due to them jacked an extra 5 inches higher. You see its 25 inch on the midsections down by the cavitation plate. 20 inch will be the standard set up if I am correct. The engines seem far apart to. In my view hey should be mounted as close as possible. I did 19 inches center to centre with my 2.5 EFI's. With 300 xs I think 21 inches is the closest you can get. By doing so you get the COG lower and can run the propshafts higher.

Cheeers, Toffen

Velocity Tom 12-21-2011 04:19 PM

How much?????????

GTOFFSHORE 12-21-2011 04:56 PM


Originally Posted by Velocity Tom (Post 3576432)
How much?????????

The last time I was over there it was under 100k. He was still working on the power. The guy who bought it supplied the motors. He wanted to do 300's. With those the boat should run 110 plus. The I/0 is amazingly fast and stable can only imagine how nice this one is. Heard that it accelerates like a rocket.

bwd 12-21-2011 05:32 PM

An Awesome lil boat from someone who loves to build his boats. Very impressive.

Skater30 12-22-2011 12:52 AM


Originally Posted by Poker~N~Run (Post 3576461)
The last time I was over there it was under 100k. He was still working on the power. The guy who bought it supplied the motors. He wanted to do 300's. With those the boat should run 110 plus. The I/0 is amazingly fast and stable can only imagine how nice this one is. Heard that it accelerates like a rocket.

So you're saying this 30' V will be faster than a 28' cat with the same power??? Hmmmmm...........

drejustice 12-22-2011 07:21 AM


Originally Posted by Toffen (Post 3576325)
Hi,

Its 25 so therefore they look tall due to them jacked an extra 5 inches higher. You see its 25 inch on the midsections down by the cavitation plate. 20 inch will be the standard set up if I am correct. The engines seem far apart to. In my view hey should be mounted as close as possible. I did 19 inches center to centre with my 2.5 EFI's. With 300 xs I think 21 inches is the closest you can get. By doing so you get the COG lower and can run the propshafts higher.

Cheeers, Toffen

I thought the 250xs only came in 20 inch shaft? Anyway, if you go with the 300xs do get the 20inch. Your top rpm limit is 6100 vs 5800 on the 25 n 30 inch shaft 300xs's.

GTOFFSHORE 12-22-2011 08:54 AM


Originally Posted by drejustice (Post 3576769)
I thought the 250xs only came in 20 inch shaft? Anyway, if you go with the 300xs do get the 20inch. Your top rpm limit is 6100 vs 5800 on the 25 n 30 inch shaft 300xs's.

Those are not XS's on the boat just standard mercs.

Toffen 12-22-2011 09:38 AM

Phantom 30
 
Hi,

I read from phantomboats facebook page that they expect it to run 100 mph with twin 300xs. Its very fast indeed. And its a true 30 feet too :)

Lots of nice pictures on the facebook site.

Cheers Toffen



Originally Posted by Skater30 (Post 3576713)
So you're saying this 30' V will be faster than a 28' cat with the same power??? Hmmmmm...........


GTOFFSHORE 12-22-2011 02:21 PM


Originally Posted by Skater30 (Post 3576713)
So you're saying this 30' V will be faster than a 28' cat with the same power??? Hmmmmm...........

My 28 skater ran 111 with 300's. 100 plus out of this hull is no issue. Light layup, vented hull, very low profile, and no b.s cabin.


All times are GMT -5. The time now is 10:50 AM.


Copyright © 2026 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.