RPM / Prop / Speeds

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04-06-2005 | 08:17 AM

#11

Pat McPherson

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Joined: Oct 2002

Posts: 5,246

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From: Ivoryton, CT

Re: RPM / Prop / Speeds

Quote:

Originally Posted by Stormrider

Pat, how could this be checked... its a new Livorsi.
Could it be the sender?
How can I make sure its right on this time around?

I would suggest to compare to a second tach. There is no real sender, it's just a signal wire from the distributor. Your engine builder will have an easy way I'm sure.

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Patrick

04-06-2005 | 08:25 AM

#12

Stormrider

Thread Starter

JC Performance Engines

Joined: Jul 2002

Posts: 8,904

Likes: 34

From: Long Island, NY

Re: RPM / Prop / Speeds

Albert, how much HP/Torque you running?

Thanks Pat.

04-06-2005 | 10:40 AM

#13

MIAMIBOYZ

Registered User

Joined: Oct 2002

Posts: 2,260

Likes: 0

From: MIAMI WHERE ELSE

Re: RPM / Prop / Speeds

Quote:

Originally Posted by Stormrider

Albert, how much HP/Torque you running?

Thanks Pat.

700/720

Keep in mind, I have a very light 28 race lay up with a notch transom not to be compared to any pleasure 28....

Last edited by MIAMIBOYZ; 04-06-2005 at 10:43 AM.

04-07-2005 | 12:16 AM

#14

panteraman28

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Joined: Dec 2001

Posts: 183

Likes: 1

From: cincinnati ohio

Re: RPM / Prop / Speeds

Im running a 31 pitch at 6200 rpm and saw 98mph

04-07-2005 | 04:10 PM

#15

T-Mone

T-Mone

Joined: Sep 2002

Posts: 490

Likes: 2

From: Brookfield CT.

Re: RPM / Prop / Speeds

Hey guys I am running a labbed 27 pitch mirage plus at 5600 rpm and 81.7 on gps that was in Tampa Bay 83 Deg High humidty. I will be posting info on my prop session with Throttle up and hydromotive over the weekend.

04-07-2005 | 07:18 PM

#16

Stormrider

Thread Starter

JC Performance Engines

Joined: Jul 2002

Posts: 8,904

Likes: 34

From: Long Island, NY

Re: RPM / Prop / Speeds

look forward to hearing it anthony.
I've heard(from JO) the hydromotives tend to give stern lift, where the pantera 24 likes bow lift.
What torque you running?

04-07-2005 | 08:00 PM

#17

Elite Marine

Banned

Joined: Aug 2002

Posts: 5,658

Likes: 1

From: IL

Re: RPM / Prop / Speeds

Ran 82.8 with a 25P Mirage Plus @ 5400 RPM on the limiter

Ran 84.7 with a 29P Mirage @ 4700 RPM

Ran a 27P Mirage Plus but GPS batteries died!!!

04-08-2005 | 08:06 AM

#18

Stormrider

Thread Starter

JC Performance Engines

Joined: Jul 2002

Posts: 8,904

Likes: 34

From: Long Island, NY

Re: RPM / Prop / Speeds

I saw this on the Gen Disc. board, but how do you compare a B1 to a Mir plus?
They were saying a 25mir+ is like a 24B1.

04-08-2005 | 08:35 AM

#19

T-Mone

T-Mone

Joined: Sep 2002

Posts: 490

Likes: 2

From: Brookfield CT.

Re: RPM / Prop / Speeds

Hey storm I have the dyno sheets in front of me. I will give you the numbers that are the closest to how the engine is tuned for reliability wich is the way I have it set up in the boat.
(5000)- 542 HP 569TQ (5500) - 567HP 542TQ
(5100) - 547 564 (5600) - 571 535
(5200)- 553 559 (5700) - 572 527
(5300) - 559 554 (5800) - 576 522
(5400) - 564 548

Last edited by T-Mone; 04-08-2005 at 08:41 AM.