Raylar Results
05-17-2006 | 12:16 AM
#1
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Raylar Results
Boat PERFORMANCE 707 (made in Italy)
Engine : Volvo 8,1 l 375 HP Duoprop
Speed : 57 MPH @ 4400 RPM
add Raylar BCK 103 Kit and Basset Headers (modified with Corsa quick and quiet)
Result :
67 MPH at 5200 RPM hitting Rev Limiter
Speed on Livorsi GPS Speedo
we will try again with a bigger set of props
Engine : Volvo 8,1 l 375 HP Duoprop
Speed : 57 MPH @ 4400 RPM
add Raylar BCK 103 Kit and Basset Headers (modified with Corsa quick and quiet)
Result :
67 MPH at 5200 RPM hitting Rev Limiter
Speed on Livorsi GPS Speedo
we will try again with a bigger set of props
Last edited by 496power; 05-17-2006 at 12:21 AM.
05-17-2006 | 08:12 AM
#7
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Re: Raylar Results
Originally Posted by Sean
those results sound great, but i wonder what the boat would have run if it was propped right from the beginning. 4400 is WAY underpropped
due to full fuel tank and three persons on board
just 200 RPM below this is o.k.
there are also not so many props available for the Volvo Duoprop compared to Mercruiser Bravo 1 - so getting exactly to the right RPM is a little more difficult
Last edited by 496power; 05-17-2006 at 08:14 AM.
05-17-2006 | 09:08 AM
#9
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From: San Diego, California
Re: Raylar Results
Alfred:
As usual my Awesome German Dealer comes through with another winner! I heard your customer is so happy he calls you almost every day now just to talk about the boat. I am excited to see what the final result is with a little more prop tweaking! Can't wait until your Donzi dealer in Holland gets his new Raylar HO600 motor in a week or so, that should be very exciting too! I am trying to attach the new 496MAG (before) and the HO600 (after) pictures that will be on the website next week. I will mail you a disk in any event.
Again, congratulations to you and your customer on a beautiful job and great results.
Best Regards,
Ray @ Raylar
As usual my Awesome German Dealer comes through with another winner! I heard your customer is so happy he calls you almost every day now just to talk about the boat. I am excited to see what the final result is with a little more prop tweaking! Can't wait until your Donzi dealer in Holland gets his new Raylar HO600 motor in a week or so, that should be very exciting too! I am trying to attach the new 496MAG (before) and the HO600 (after) pictures that will be on the website next week. I will mail you a disk in any event.
Again, congratulations to you and your customer on a beautiful job and great results.
Best Regards,
Ray @ Raylar
Last edited by Raylar; 05-17-2006 at 09:11 AM. Reason: attachment
05-17-2006 | 09:31 AM
#10
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Posts: 3,161
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From: Darien, CT
Re: Raylar Results
Originally Posted by 496power
recomended RPM for a 375 HP Volvo is 4600
due to full fuel tank and three persons on board
just 200 RPM below this is o.k.
there are also not so many props available for the Volvo Duoprop compared to Mercruiser Bravo 1 - so getting exactly to the right RPM is a little more difficult
due to full fuel tank and three persons on board
just 200 RPM below this is o.k.
there are also not so many props available for the Volvo Duoprop compared to Mercruiser Bravo 1 - so getting exactly to the right RPM is a little more difficult
once again...great work.
