best 3 blade for 0540 sv

[mrbill]

been looking in to going back to a 3 blade just for harmonice .i have a 13'6" /7'6" diamond back stainless cage

[Outlawaircraftengines]

3 blade ngh or 3 blade q if its a 300 hp engine. I'm a dealer for sensenich if I can help you.

[Olf Art]

A 3 blade 'Q' works awfully well ..... about 72" in dia. JMO

[406 JAMIE]

hello hope this helps i had 13x7 old school deepsided alumn tech wit io540 AV 300hp i had a WHIRL WIND 3bld 74in each bld was 9.5 wide and would turn the $h!t out of it had atwo 1/4-20 s/s valvecover come out and hit prop at WFO and didn't go threw 2 of the blds left perfect marks in nickel leading edge and drove the nuts out of it like that.call ms.patty u cant beat 30 days or money back if not happy.y all besafe .

[mrbill]

the whirl wind narrow in 72" any one tryed it on a stock sv 0540 if so performance of it !

[jeepinocala1111]

3 blade ngh or 3 blade q if its a 300 hp engine. I'm a dealer for sensenich if I can help you.

Sensinich is the best, glad to see you are involved in selling the best because I have had nothing but good luck buying from you in the past.

[kwanjangnihm]

mrbill what props have you run on your boat up to this point? (model, size, number of blades?)

[mrbill]

sench 72 h 3 blade /stump puller 76 2 blade /sench 72 ngh no tips/and now whril 74 2 blade ...i like the smoothnes of the multi blades

[aherr520]

I have a 3 blade ngh and it is much smoother then a 2 blade and still has some good push

[mojoe]

Bill, you have run almost every prop on the market except a thin blade 5 or 6 blade. Try a Sabre and Excallibur out and then YOU will be the foremost authority on what prop to run on a SV 0-540!!

[WhirlWind Propellers]

Hi Mr Bill,

Sorry, I've absent from answering your questions. If you are looking for the increased smoothness that is inherent to 3 and 4 blade propellers, I can make a few suggestions for you to think about.

If your 540 is a parallel-valve, I think the 3-blade Whisper Tip Narrow (10" med wide blade) may be a little too much blade area to give you an optimum blade angle for maximum performance. This is propeller is what we like to put on a high HP angle-valve type 540 or 520 aircraft engine.

If you want the ultimate in smoothness and performance, I would recommend our 4-blade Excalibur propeller system in 72" diameter. This 4-blade propeller uses our 5.5" wide Excalibur blade style with our exclusive X-Core™ composite technology that gives the blade extreme strength while also making it super light and stiff. The Excalibur blades will spin up fast to give you instantaneous thrust, and with the wider blade width, they will also give you that excellent mid-range and low-end performance that wide blades are known for.

Sincerely,
-Patti

[mrbill]

has any one used This 4-blade propeller uses our 5.5" wide Excalibur on sv 0540 with a 13
' hull ?

[Deano]

Sidejobs ran one on his very healthy Caddy.
You may want to search his posts, there was quite a bit of info you can likely use.
Here are a couple threads with some info as well.

http://www.southernairboat.com/phpBB3/viewtopic.php?f=133&t=62684&p=609751

http://www.southernairboat.com/phpBB3/viewtopic.php?f=133&t=64308&p=624970

[terrible ted]

hello hope this helps i had 13x7 old school deepsided alumn tech wit io540 AV 300hp i had a WHIRL WIND 3bld 74in each bld was 9.5 wide and would turn the $h!t out of it had atwo 1/4-20 s/s valvecover come out and hit prop at WFO and didn't go threw 2 of the blds left perfect marks in nickel leading edge and drove the nuts out of it like that.call ms.patty u cant beat 30 days or money back if not happy.y all besafe .

I had a brass nut come off the motor the prop shoot it thru the oil cooler- lucky in went thru the fins only. So I wonder how the 3 blade performs verse the 2 blade. right now I running a 74 2 blade WT blade around 10 wide at 3000 on about 13 degrees
I more interested in fuel but would like to know power change.

[digginfool]

has any one used This 4-blade propeller uses our 5.5" wide Excalibur on sv 0540 with a 13
' hull ?

I ran an Excalibur on my sled for almost a year. I loved the prop but it didn't play well with my motor. I would highly recommend the Excalibur. BTW, I've got one for sale. Brand new hub and hardware, Armor coat on blades.

[lariat]

I have tried an NGH and Q. Both were 72". I would definetly go with the Q. If I was starting from scratch....I think I would try three of the 4cyl version NGQ blades.