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-   -   Best 4 blade prop for a 7.4 (https://www.offshoreonly.com/forums/scarab/237718-best-4-blade-prop-7-4-a.html)

bobo1 08-26-2010 05:19 PM

Best 4 blade prop for a 7.4
 
Anyone have a good idea for a 4 blade prop to run on my 90 21' scarab exel 7.4? I'm turning 5000 rpm (trimmed) on a 23p quicksilver. It has been a great prop for top end. Good getting on plane, good midrange and top end. I wanted to also get a 4 blade for it for handling purposes without loosing too much top end. Any feedback is greatly appreciated! Thanks in advance.

BY U BOY 08-27-2010 10:34 AM

Brovo 1 22p

also try a Rev 4 22 or 23p I have heard good things about them.

Powerquest_Baby!! 08-31-2010 05:33 PM

Do you have a mag or a peanut 7.4 (454)? If its a mag then you want to run between 4600 and 5000 RPM--in a Bravo 1 prop I would run a 24P (they are typically pitched closer to 23p)--a 22P will be too small.
IF you have a peanut 454 then your RPM range is 4200-4600 and you may have to increase your pitch to a 26P Bravo 1 to get the RPM's down.

fastscarab22 08-31-2010 07:17 PM

first check your rpms with a timming light with a tack, to tell you what you are really turning, try a 24 pich 4 blade bravo 1


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