RPM / Prop / Speeds
04-05-2005 | 12:22 PM
#1
Thread Starter
JC Performance Engines
Joined: Jul 2002
Posts: 8,904
Likes: 33
From: Long Island, NY
RPM / Prop / Speeds
What rpm props and speeds are you guys using and seeing?
GPS only guys.
4900 / Mirage Plus 23 / 64mph.
GPS only guys.
4900 / Mirage Plus 23 / 64mph.
Last edited by Stormrider; 04-05-2005 at 12:52 PM.
04-05-2005 | 03:11 PM
#7
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Joined: Aug 2001
Posts: 6,337
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From: Edison, NJ, USA
Re: RPM / Prop / Speeds
stock 24p B-1 @ 5900rpm 75mph, labbed 26p B-1 @ 5900 78.7(new jersey) cool air, water, low humidity. (Florida) in warm, humid air, water ...i lose about 2 mph
Last edited by BRUCE SEROFF; 04-05-2005 at 03:22 PM.
04-05-2005 | 07:05 PM
#8
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Joined: Oct 2002
Posts: 5,246
Likes: 3
From: Ivoryton, CT
Re: RPM / Prop / Speeds
Originally Posted by Stormrider
Pat is that GPS?
The same boat also ran 62-63mph with a 22p Bravo I at 4900rpm...
I think my Sport model may have been a bit lighter than your SE.
I spoke to JO a lot about props when I had my Pantera. He told me that when they rig a 24' with a 310HP/7.4MPI they see 65-66mph at 4650rpm with a 23p Mirage +. My boat never did that well, but it was close.
I see vary similar results with my 24' Super. She tops out at 67+mph with a 25p Mirage+ at 4400-4450rpm.
Your Tachometer may be off a little...
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Patrick
Patrick
04-06-2005 | 07:50 AM
#9
Thread Starter
JC Performance Engines
Joined: Jul 2002
Posts: 8,904
Likes: 33
From: Long Island, NY
Re: RPM / Prop / Speeds
Originally Posted by Pat McPherson
Your Tachometer may be off a little...
Could it be the sender?
How can I make sure its right on this time around?
