242 LS Hull 75+ mph Possable
12-13-2006, 06:57 PM
#22
Registered
Re: 242 LS Hull 75+ mph Possable
correct prop and in the case of dual motors correct rotation of props should correct any ride problems.
There is no reason a Formila with a staight bottom should porpoise unless something is wrong with the setup.
Prop and drive science has come a long ways since Formula
made them in the 80s.
My lil 21 footer with a 454 and radar arch in the back is very stern heavy. With the wrong prop(bowlifter) it bounces up and down like a carnival ride. With a stern lifting (or no lift) prop it rides smooth as can be.
There is no reason a Formila with a staight bottom should porpoise unless something is wrong with the setup.
Prop and drive science has come a long ways since Formula
made them in the 80s.
My lil 21 footer with a 454 and radar arch in the back is very stern heavy. With the wrong prop(bowlifter) it bounces up and down like a carnival ride. With a stern lifting (or no lift) prop it rides smooth as can be.
Originally Posted by mopower
You're absolutely correct but in the case of a 272 with big blocks , it's very stern heavy and tends to porpoise between 40 and 60 mph without using tabs anyway. Removing the hook would only make it worse. Next summer I plan to try some Hydromotive props in lieu of Bravos since B1's are bow lifters anyway and Hydros are stern lifters. A single engine 242 is a bit of a different story as the balance is much better than a twin BB 272 as demonstrated in these pictures.
12-13-2006, 08:28 PM
#23
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Re: 242 LS Hull 75+ mph Possable
'89 Formula 242 with single 502ci using a B&M 250 blower. Bravo drive. I can't remember what prop I had on it. Ran 78mph (on hand held GPS) all day long. Sometimes I wish I had it back.
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Steve Gresham
'03 Donzi 33ZX
Steve Gresham
'03 Donzi 33ZX
12-31-2006, 12:05 PM
#24
Re: 242 LS Hull 75+ mph Possable
1990 242 LS 454 330 bravo drive , ya there's nothing like the 'squat' .. Id like to ad some hp !! 
Last edited by thanks_don; 10-24-2008 at 11:06 AM.
01-01-2007, 06:55 AM
#27
Registered
Re: 242 LS Hull 75+ mph Possable
You're absolutely correct but in the case of a 272 with big blocks , it's very stern heavy and tends to porpoise between 40 and 60 mph without using tabs anyway. Removing the hook would only make it worse. Next summer I plan to try some Hydromotive props in lieu of Bravos since B1's are bow lifters anyway and Hydros are stern lifters. A single engine 242 is a bit of a different story as the balance is much better than a twin BB 272 as demonstrated in these pictures.
Platinum Member
01-11-2007, 03:13 PM
#29
Registered
Re: 242 LS Hull 75+ mph Possable
Mopower, I think that`s my old boat
I need more squat
I need more squat
Last edited by masi242; 01-11-2007 at 03:16 PM.
