Prop Seeelection Help Please...

[Tempest38]

I need to get some props for the ole BBT since one of my drives threw half of my only set of props in the lake...

38' Tempest
9.5:1 540's
Crane 139731 Hydraulic rollers
1050 Dominator carbs (and a ummm, Somewhat bigger set of Dominators)
Victor intakes
TRS drives w/wo 2" spacers (Seem to be about 1:40 ratio)

Boat with 5 200+ pound guys and full (240? gallons) of fuel in maybe 1' chop went 67 mph with Hydromotive 14.5 x 24 4 blades. And the props did Not have a diffuser? ring, they were just straight out to the rear of the prop.

Pics of the boat, old props, and how the drives sit on the boat With the 2" spacers.
THANKS for any input. Don

[Christian]

Don what RPM (and what is redline or peak HP) did the hydros run 67 thta is an impostant piece of info :mrgreen:

[Tempest38]

I don't remember but it seems like it was in the 4400 range????? Motor will turn a llittle more. I'll dig out some papers...

[JasonSmith]

You need to spin them bitches about 5500 rpm. I'd try some 23 Mirages.

[Tempest38]

I'm thining spinning TRS' 5500 for very long would get me named after Jason Smith, Drive Exterminator...

[JasonSmith]

Na, they are meant to go fast!

[Griff]

You definately need to spin at least 5000rpms with your engine. I would try some 24 Bravo 1's, maybe even some 22's. They will give a better cruise than the hydro's, will carry the bow more, and should spin a few hundred rpm faster.

[myscarab30]

I don't remember but it seems like it was in the 4400 range????? Motor will turn a llittle more. I'll dig out some papers...
Hey Don.. Can I try your 24 Hydros ?

[Griff]

I need to get some props for the ole BBT since one of my drives threw half of my only set of props in the lake...



Based on his first sentence, I'm thinking you might have to go diving to try them both.

[Tempest38]

I would REEEELLLYYYYYY love to be able to say yes. About a thousand bucks or whatever they're worth being able to say yes...

[myscarab30]

So I take it there gone or at least one of them are ?

[capone550]

I have a pair of 24 4 blades sitting in my garage you can try if you want. Not really sure what they are but I know they are 24's

[bbladesprops]

Depending on whether you want top end or low and cruise, I'd try 23 Mirage + or Revolution 4's. Then minor tweaking will get you where you want to be.

[myscarab30]

I have a pair of 24 4 blades sitting in my garage you can try if you want. Not really sure what they are but I know they are 24's
Would love to..Thanks see what shipping would be from you to me ..my zip code is 66043...Thanks

[Tempest38]

Yes - one of my props has taken up, or I guess Under, lake residency full time.

[Tempest38]

Depending on whether you want top end or low and cruise, I'd try 23 Mirage + or Revolution 4's. Then minor tweaking will get you where you want to be.

Actually I woul dlike to have go fast set and a set to get as decent as possible cruise economy. Are Rev 4's a given size or what diameter and pitch do I want for speed or cruise? Thanks[smilie=042.gif]

[JasonSmith]

Actually I woul dlike to have go fast set and a set to get as decent as possible cruise economy. Are Rev 4's a given size or what diameter and pitch do I want for speed or cruise? Thanks[smilie=042.gif]
Hey, didn't I say that you needed 23" Mirages? [smilie=042.gif] Brett & I are smart fellers huh?! I'd bet he is smarter than I am when it comes to all this propeller stuff.;)

[Tempest38]

Sounds familiar... Did you say our buddy has a set of those or are they something else???

[JasonSmith]

I don't know anyone with Mirages anymore.

[bbladesprops]

Rev 4's are only available in 14 5/8's diameter. The pitch sizes run in odd numbers to 25 pitch.

If you would like to try one, give me a call and we'll set it up.