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Sunsation Aggressor Engine build finished! Pics.

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Old 05-31-2011, 12:09 PM
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Default Sunsation Aggressor Engine build finished! Pics.

548CI. dyno torque 674.3 at 4700RPM. HP 651.6 at 5800RPM. We could have milked some more power, but we decided to keep it at a safe 33' timing and we didnt lean it out very much. Major thanks to Bob at marine Kinetics. He helped me build this over the phone. Sold me all the parts and helped me decide what to buy. He was right on the money with what he told me to expect as far as power. I could have never got it done on my own.

http://www.marinekineticsonline.com/












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Old 05-31-2011, 12:14 PM
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1050 doninator
AFR 305 heads
Hyd roller custom cam
Diamond racing pistons
carillo rods
crower crank
edelbrock 454R intake.
MSD marine ready to run
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Old 05-31-2011, 12:22 PM
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Be very careful with that much power in a 25 Aggressor. There was bad accident with one with big power several years back.
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Old 05-31-2011, 12:57 PM
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Just curious, can you divulge any information on the cam you used, In the middle of the same project myself.
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Old 05-31-2011, 01:02 PM
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Quote:
Originally Posted by 43scarab View Post
Just curious, can you divulge any information on the cam you used, In the middle of the same project myself.
Im honestly not sure on the specs. Id have to find my spec sheet Bob might be able to let you know.
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Old 05-31-2011, 01:03 PM
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Quote:
Originally Posted by Griff View Post
Be very careful with that much power in a 25 Aggressor. There was bad accident with one with big power several years back.

Ive heard about that. Im going to get a 288 next season. This is just too much for a 25 aggressor.
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Old 05-31-2011, 01:41 PM
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Sick,
The engine looks great. Let us know how fast you are running.
I just repowered my 24' Race Sunsation, 606 Lock'd Up Bandit.
I think this is the crash Griff is talking about:
http://youtube.com/watch?v=SUf8RCCC_Mc
Link fixed

Last edited by Fast Shafts; 05-31-2011 at 01:50 PM.
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Old 05-31-2011, 01:50 PM
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Originally Posted by Fast Shafts View Post
Sick,
The engine looks great. Let us know how fast you are running.
I just repowered my 24' Race Sunsation, 606 Lock'd Up Bandit.
I think this is the crash Griff is talking about:
http://youtube.com/watch?v=SUf8RCCC_Mc
Link fixed

video link doesnt work
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Old 05-31-2011, 01:53 PM
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works now. Ouch! I wonder what happened...?
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Old 05-31-2011, 02:10 PM
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Sick,
I'm guessing/speculating: when the boat became airborn, the throttles were pulled back so much that when the prop hit the water it caused ALOT of drag, forcing the bow down, bow steering hard to the left (port). I think (my opinion) if they stayed a bit into the throttle, they wouldn't have bow steered. From racing experience, the natural reaction when getting too much air is to pull back-sometimes to the extreme.
I'd like to hear what others think??
By the way-the boat was still racing OPA a couple of years ago-I heard it was being rerigged for racing.
Bob
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