speed on a 358 sonic
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speed on a 358 sonic
I just wanted to tell everyone my results, I have a 358 sonic with 496 ho in it, the boat would run 68 to 69 on gps. I removed the restitor plates and put 26 pitch props. the cruise speed went from 47 at 3600 to 53 and the top speed went to 72 mph.. I am very happy with the results I think I might try 26 labbed might be able to get another 1 or 2 mph out of it. What are the average speeds for a 358 with 496?? Is this good or can I get more???
Last edited by madprops; 06-13-2006 at 08:12 AM.
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Re: speed on a 358 sonic
I have a 358 with 525's and switched from 4 blade Bravo1's to Hydromotive 5 blades and picked up 2-3 mph. The 5 blades also made a drastic improvement in the handling of the boat. Madprops, what are the resistor plates that you removed and how do they effect performance.
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Re: speed on a 358 sonic
Originally Posted by VIPER7
I have a 358 with 525's and switched from 4 blade Bravo1's to Hydromotive 5 blades and picked up 2-3 mph. The 5 blades also made a drastic improvement in the handling of the boat. Madprops, what are the resistor plates that you removed and how do they effect performance.
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Re: speed on a 358 sonic
Originally Posted by HiPerf2000
So how fast are you running now ? and Cruise speed ?
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Re: speed on a 358 sonic
Originally Posted by VIPER7
I have a 358 with 525's and switched from 4 blade Bravo1's to Hydromotive 5 blades and picked up 2-3 mph. The 5 blades also made a drastic improvement in the handling of the boat. Madprops, what are the resistor plates that you removed and how do they effect performance.
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Re: speed on a 358 sonic
Originally Posted by VIPER7
I have a 358 with 525's and switched from 4 blade Bravo1's to Hydromotive 5 blades and picked up 2-3 mph. The 5 blades also made a drastic improvement in the handling of the boat. Madprops, what are the resistor plates that you removed and how do they effect performance.
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Re: speed on a 358 sonic
Originally Posted by islandracer
I just spoke to my mechanic and he cautioned against removing these as these plates keep water from backfilling the motors
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Re: speed on a 358 sonic
Originally Posted by islandracer
how much effort is it to remove these resistor plates? 3-4 hours per motor?