Offshoreonly.com - Prop selection?

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phastang

04-23-2002 11:21 PM

Prop selection?

I have just purchased a Powerquest 260sx with a 454 mag in it. It has a bravo one drive and had a 21 pitch BR1 prop. The boat went 62.1 on GPS at 5300 RPM. I have now installed a Procharger making 3.5 lbs of boost and a 28 pitch BR1 prop. The boat now runs 74.3 on GPS but at only 4600 RPM. Should I go to less prop to get some RPM back?

Griff

04-24-2002 02:57 AM

Going to a 26" Bravo 1 instead of the 28" will get you back about 400 rpms.

Raypanic

04-24-2002 07:46 AM

Get a 26 if you want to spend the $$ Otherwise send in the 28 to a prop guy and have it labbed and pitched down some. Between labbing (thinning) re pitching you could gain the RPM back. Staying arround 5000 RPM is not a bad idea anyhow.

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