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Prop selection for 358 with 500efi's

Old 05-24-2004, 05:14 PM
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Default Re: Prop selection for 358 with 500efi's

Originally Posted by splashandburn
I have a 2002 358 with the HP500 EfI's that I bouight over the winter. The boat had stock 28 Bravos that gave me about 4800 rpm and close to 78 mph (gps). I had the boat into Sonic and they swapped out the props for me with labbed 28's. Now I can hit 5200 rpm but only run around 74 mph. I'm thinking of going back to the stock 28's because of the speed issue but isn't it better to run in the upper range of the max rpm??
I always felt that way until someone goes by me at a couple miles per hour.
I have 525's with labbed 28's and get about the same numbers as you do with the labbed props .I am going to try a set 30's that are labbed
I will let you know I have a 2003 358
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Old 05-24-2004, 09:05 PM
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Default Re: Prop selection for 358 with 500efi's

Thunder32,
Try bringing your tabs down alittle(even with the running surface).this may help. It did with mine. My hull has the notch in the transom.
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Old 05-26-2004, 06:00 PM
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Default Re: Prop selection for 358 with 500efi's

thanks NJ, but I do not have a notched transom.

Will post results when I figure it out.

Adam
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Old 05-26-2004, 07:10 PM
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Default Re: Prop selection for 358 with 500efi's

Originally Posted by roadrunner
I always felt that way until someone goes by me at a couple miles per hour.
I have 525's with labbed 28's and get about the same numbers as you do with the labbed props .I am going to try a set 30's that are labbed
I will let you know I have a 2003 358
I just ordered a set of labbed 28's from Houston Propeller - I'll see how these work out and post the results too. Should be here in about 10 days or so.
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Old 05-27-2004, 08:13 PM
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Default Re: Prop selection for 358 with 500efi's

thanks Splash-

please post results when you can.

Adam
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Old 05-31-2004, 09:35 PM
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Default Re: Prop selection for 358 with 500efi's

Got a chance to get the boat wet . I ran the 30 lab finished
ran the same numbers as the 28's but now boat was full of gear
wife and two daughters full of water . So I have to say I picked up
a little ran 5200 rpm around 77.6 w/short blast
Water was flat .What I really liked was 3000 was around 43 mph
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Old 06-21-2004, 08:12 PM
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Default Re: Prop selection for 358 with 500efi's

Originally Posted by Thunder32
thanks Splash-

please post results when you can.

Adam
I got my new labbed 28's this weekend. Got a little time to run them but the water was dead calm. I was running close to 5000 rpm but didn't have my gps on. I did notice the midrange seemed to be much better.

I get alot of the porpoising too. I've indexed my drives and tabs to neutral - approx 4 on the drives and 5 on tabs. I have to run with more than 5 tabs or I start to get alot of front end bounce - no notch either. Where are you other guys running your drives and trims with your 358's?
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Old 06-22-2004, 04:59 PM
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Default Re: Prop selection for 358 with 500efi's

good question- I'm interested too....
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Old 06-23-2004, 07:06 AM
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Default Re: Prop selection for 358 with 500efi's

When we are running 40-50mph
I always set tabs at around 5 give or take a little on each
The drives are set around 2-3 for the same speed . This seems to
stop the bounce . when I want more speed I just flatten or 0 out the tabs
and run the drives as far out as the rpms will let me (flat water ).
I found the sweet spot and marked it on my tab indicator with a dot from a sharpy seems to make it a lot easyer to find while moving. Hope this helps

RR
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Old 07-01-2004, 12:19 AM
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Default Re: Prop selection for 358 with 500efi's

I have an 05 358 with Bravo 1's 30 pitch. I ran 79.9 on flat water but i have to run a lot of tab initially to keep the bow from bouncing. Has anyone found props with enough stern lift to keep the bow down. pic's attached
Attached Thumbnails Prop selection for 358 with 500efi's-358-myrtle-beach.jpg  
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