Re: RPM / Prop / Speeds
 

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.

Re: RPM / Prop / Speeds
 

Albert, how much HP/Torque you running?

Thanks Pat.

Re: RPM / Prop / Speeds
 

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....

Re: RPM / Prop / Speeds
 

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

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.

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?

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!!!

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.

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

Re: RPM / Prop / Speeds
 

Hey sorry that post look like a bunch jumbled numbers but I am sure you can figure it out. Anthony