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-   -   Expectations of -2 Sportmasters on a Baja (https://www.offshoreonly.com/forums/general-boating-discussion/359366-expectations-2-sportmasters-baja.html)

BajaIceBreaker 03-03-2019 09:52 PM

Expectations of -2 Sportmasters on a Baja
 
I have a 40 Outlaw with 500 EFI's. Thinking about putting on some -2 Sportmaster lowers. What can I expect? Do I need to change my prop hubs? With they bolt up to my Bravo 1's? Will I gain speed? Will I throw a rooster? Is it worth the money? How much can I get for my stock lowers?

JaayTeee 03-03-2019 10:07 PM

What year ? How far are the propshafts below the bottom of the boat?

Keith Atlanta 03-03-2019 10:48 PM

I dont think so. Unless you have extension boxes and shorties.

Use the money for cams and heads or whipples.

BajaIceBreaker 03-04-2019 05:54 AM


Originally Posted by Keith Atlanta (Post 4675354)
I dont think so. Unless you have extension boxes and shorties.

Use the money for cams and heads or whipples.

-2 Sportmaster means 2" short.

BajaIceBreaker 03-04-2019 06:02 AM


Originally Posted by Keith Atlanta (Post 4675354)
I dont think so. Unless you have extension boxes and shorties.

Use the money for cams and heads or whipples.


Originally Posted by JaayTeee (Post 4675348)
What year ? How far are the propshafts below the bottom of the boat?

2001. Idk measurements... but it's a Baja the x dimension is pretty low in the water.

Keith Atlanta 03-04-2019 06:41 AM


Originally Posted by BajaIceBreaker (Post 4675365)
2001. Idk measurements... but it's a Baja the x dimension is pretty low in the water.

Both JT and myself understand. We both have 33+ Bajas & Both of us have extension boxes and shorties.

The extension box gives you leverage and the shorty gets the prop higher out of the water. I dont think shorties by themselves will give you more than 1mph, maybe even net zero if you are lucky, they might even lose speed EVEN if they are shorter. On a 70 MPH boat IMCO lowers will probably slow you down, they did on my boat the first time around. The bravo lowers do much better at these speeds. Bravos give you more bow lift. If you do boxes and shorties you are looking at a minimum of $8000 investment and a LOT of labor and time. Just put the money into heads and cams get real gains.

VoodooRob 03-04-2019 07:41 AM

^^^^ This. 4-500 Hrs on the boat? Fresh top ends (+ what Keith suggested above if in the budget), go thru ignition system and fuel system. 500EFI Injectors are notorious for many issues, some you do not realize because of the slow degrade in performance over time. Have the injectors tested, flowed and most likely you'll end up replacing a bunch of them.

Full Force 03-04-2019 08:21 AM

I was told by someone a while back that the hull will ride too wet no matter what you do, think it needs longer lifting strakes to lift it better, I don’t see the shirties hooking good enough to give it the needed leverage to gain anything, I’m with the guy that said 0 gains or a loss doing it. Getting on plane would be a nightmare I bet too.

BajaIceBreaker 03-04-2019 10:50 AM


Originally Posted by Keith Atlanta (Post 4675369)
Both JT and myself understand. We both have 33+ Bajas & Both of us have extension boxes and shorties.

The extension box gives you leverage and the shorty gets the prop higher out of the water. I dont think shorties by themselves will give you more than 1mph, maybe even net zero if you are lucky, they might even lose speed EVEN if they are shorter. On a 70 MPH boat IMCO lowers will probably slow you down, they did on my boat the first time around. The bravo lowers do much better at these speeds. Bravos give you more bow lift. If you do boxes and shorties you are looking at a minimum of $8000 investment and a LOT of labor and time. Just put the money into heads and cams get real gains.

Thx for your thoughts. I'm struggling because I am not touching the motors at this time. So was just looking for other options. Extension boxes would be adding too much cost for the little gains. Hmm.. the struggle is real.

Would it pop a rooster?

Why would getting on plane be a problem? I dont see that being an issue... maybe I overlooked something.

Full Force 03-04-2019 10:57 AM

Shorter drives make planing harder, bigger props more cavitation ..

seems more converned on having a rooster?? Lots of money to see a rooster



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