O540 - 2 blade NGQ

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Hog Guts
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O540 - 2 blade NGQ

Post by Hog Guts » Tue Dec 02, 2014 12:43 am

I have 72" right now using short hub but I can get a medium hub and then they are 74" for little money. Assuming it fits fine which would be better?


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ptr34
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Re: O540 - 2 blade NGQ

Post by ptr34 » Tue Dec 02, 2014 10:51 am

i like the 74" better . 74 still as snappy as 72 with more bottom end
if u don't run dry .then should have gotten a bassboat
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Re: O540 - 2 blade NGQ

Post by DAGWOOD0520 » Tue Dec 02, 2014 12:47 pm

You can exchange it for a medium hub and make it a 74" prop. I have a few older style new hubs that I can work with to keep the cost down on the exchange. If you will, please send me an email with your current hub serial #, and them I can get you a price. Thanks

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Hog Guts
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Re: O540 - 2 blade NGQ

Post by Hog Guts » Tue Dec 02, 2014 3:53 pm

Let me see if I have the two inches to work with I think it will be fine since I'm making a new cage. I'll follow up once I know what I can fit properly


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Tony480
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Re: O540 - 2 blade NGQ

Post by Tony480 » Tue Dec 02, 2014 5:54 pm

Definitely get the 74" if you can swing it clearance wise. You won't lose much snap but pickup quite a bit more push

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Re: O540 - 2 blade NGQ

Post by billybob » Tue Dec 02, 2014 6:44 pm

You will only gain a 1". It's an inch on both sides.
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Re: O540 - 2 blade NGQ

Post by BRMaynor » Tue Dec 02, 2014 11:48 pm

Not to hi-jack the thread HG but... :D

I was just about to email Sensenich directly regarding possible hub exchanges and asking for some insight on changing hub size when I ran across this thread with Dagwood direct from Sensenich already chiming in - would appreciate some insight from anyone!

So I'm thinking of going in the opposite direction from bigger hub to smaller. The attached pic is the hub I have and can only assume it's the "long" hub at close to 11 - 1/2" and it just seems like a ton of weight. I would think going from the long to the short should have a significant weight delta and give me much more snap.

HG mentioned his total length is 72" now with the smaller hub and that going to a medium would give him 74". That through me off as my q blades are 35" (I think all the blades are the same length, correct me if I'm wrong ?) and the hub space between the blades is about 4-1/2" so that would be 74" in total length - does this mean I have a medium size?? Couldn't even imagine one being longer and heavier than this one is!

So - Here's my questions and btw I'm running an IO-540 and currently building the boat...

#1 - Do I currently have a medium or long hub?
#2 - Can anyone provide insight on going down to the short hub from what I have?
#3 - What would my overall prop length be with my 35" blades using a short hub?

Dagwood - I would be interested in what exchange deals you can offer as well, I will also email you my serial # if that's okay? Would appreciate any feedback on going from what I have now down to the small hub, thanks in advance!

-Brad
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Bruce
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Re: O540 - 2 blade NGQ

Post by Bruce » Wed Dec 03, 2014 12:24 am

the blades are different but to answer your question you have a long hub if you went to a med you would have a 72 and a short would be a 70 i prefer the shorter prop with more pitch but i run my motors low on a light boat and enjoy the snap. if your boat is a big heavy boat or you like to run the bushes id stay with the 74
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ptr34
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Re: O540 - 2 blade NGQ

Post by ptr34 » Wed Dec 03, 2014 12:43 am

Ngq is 1" longer than a Q bruce right. Remember hub weight has the flywheel affect not like u have that weight out at the tip.if it was me I would stay 74" for more push
if u don't run dry .then should have gotten a bassboat
tons videos on YouTube ptr34

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Re: O540 - 2 blade NGQ

Post by BRMaynor » Wed Dec 03, 2014 9:21 am

Thanks Bruce, thanks Terry.

I am rigging this one on somewhat of a light haul and it will also be low so I will most likely go with the short hub but at minimum go down to the med.

I agree Bruce on going shorter for snap but maintaining push with more pitch, I would think even with going from 74" - 70" changing my hub that I wont lose that much push... I used to have a SV180 and ran a 66" H series with a lot of pitch in it and loved it! Should be the same principle.

This long hub just feels so heavy I can't stand it! :evil:
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Re: O540 - 2 blade NGQ

Post by DAGWOOD0520 » Wed Dec 03, 2014 10:30 am

BRMaynor wrote:Thanks Bruce, thanks Terry.

I am rigging this one on somewhat of a light haul and it will also be low so I will most likely go with the short hub but at minimum go down to the med.

I agree Bruce on going shorter for snap but maintaining push with more pitch, I would think even with going from 74" - 70" changing my hub that I wont lose that much push... I used to have a SV180 and ran a 66" H series with a lot of pitch in it and loved it! Should be the same principle.

This long hub just feels so heavy I can't stand it! :evil:

Brad
Just replied to your email, thanks.

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Re: O540 - 2 blade NGQ

Post by Hog Guts » Wed Dec 03, 2014 11:24 am

I'll swap mine with you if it's what I need. You live three miles down the road lets talk soon. -scott


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Re: O540 - 2 blade NGQ

Post by Tony480 » Wed Dec 03, 2014 11:32 am

That long hub with ngq blades would be 76". I ran that on my angle valve 540 and loved it.

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Re: O540 - 2 blade NGQ

Post by FLA BOY » Wed Dec 03, 2014 3:48 pm

Tony480 wrote:That long hub with ngq blades would be 76". I ran that on my angle valve 540 and loved it.

I'll bet that was a great pushing and cruising prop.
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Re: O540 - 2 blade NGQ

Post by kwanjangnihm » Wed Dec 03, 2014 4:36 pm

Tony what prop are you currently running?
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Re: O540 - 2 blade NGQ

Post by Tony480 » Wed Dec 03, 2014 4:59 pm

I just sold that boat. In process of building a new one. Butbi sold it with that prop. I ran every prop Sensenich made and liked it the best

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Re: O540 - 2 blade NGQ

Post by SWAMPHUNTER45 » Wed Dec 03, 2014 5:06 pm

I run a 76 NGQ and it pushes like a bulldozer.

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Re: O540 - 2 blade NGQ

Post by Hog Guts » Wed Dec 03, 2014 6:04 pm

Is 76 too much for a 260hp sv? Sounds like I could swap my short for a long hub and go from 72 to 76 but I was thinking the medium hub at 74 would be best but I'm just guessing I have no idea. How many RPM difference would the inch on each blade make for two blade same pitch ? Or am I over thing it? I guess the longer you can fit is better then adjust pitch to my liking...


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Re: O540 - 2 blade NGQ

Post by SWAMPHUNTER45 » Wed Dec 03, 2014 7:07 pm

IMO 76NGQ is probably to much prop. I found it likes pitch, so better to run a smaller prop set at 2.5 than bigger at 1

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Re: O540 - 2 blade NGQ

Post by Tony480 » Wed Dec 03, 2014 7:28 pm

Yea a 76" would be a little much for s/v. A 74" would be great. I didn't have any pitch marks on my blades but I know with a digital protractor it had 9° measured in the crease of the winglet and would turn it 2750. Right where the 76" liked

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Re: O540 - 2 blade NGQ

Post by BRMaynor » Wed Dec 03, 2014 7:44 pm

Tony did that 76" setup still have some snap to it? Does anyone know the weights of the three different hub sizes?

Thanks for the reply Darrin, I'll be in touch!
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Re: O540 - 2 blade NGQ

Post by Bodean » Wed Dec 03, 2014 8:15 pm

ya'll got me curious now, I have a 520 with a 3 blade H 72" set on 2 1/4 spinning around 2800-2850 it's a hunt boat and i beat the bush hard and wondering if i went to a 74" would it push harder? thanks for any input
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Re: O540 - 2 blade NGQ

Post by billybob » Wed Dec 03, 2014 8:31 pm

Bodean wrote:ya'll got me curious now, I have a 520 with a 3 blade H 72" set on 2 1/4 spinning around 2800-2850 it's a hunt boat and i beat the bush hard and wondering if i went to a 74" would it push harder? thanks for any input
I left that same combo behind for the NGQ! Call Brian at quick slick. He's a dealer. 963-581-9710
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Re: O540 - 2 blade NGQ

Post by Bodean » Wed Dec 03, 2014 8:36 pm

billybob can you give me some details as to the difference you had by swapping? do you beat the bushes alot?
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Re: O540 - 2 blade NGQ

Post by Tony480 » Wed Dec 03, 2014 8:40 pm

BRMaynor wrote:Tony did that 76" setup still have some snap to it? Does anyone know the weights of the three different hub sizes?

Thanks for the reply Darrin, I'll be in touch!
Yes it still had snap. I loved that prop. Was quiet at cruise had great push.

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