Powertech OFX Propellor
 

Powertech OFX propeller is being marketed as a prop to try for increased top end by providing more bow lift if you can not currently make your boat porpoise at max trim out with your current prop.

What has been anyones experience with a Powertech OFX propeller?

Anyone?

What pitch you looking for?
Thanks Zoob

Call m I don't have access aol all the time 513-315-5004
ZOOB

I will not know until I complete a dyno test. At this point I am just looking for anyone who has tried/used this prop on a boat/motor similar to mine and their results .... preferably A vs B testing against a Bravo.

I see where BBlades and Throttle Up do or did carry the Powertech prop line. Their insight/experience as to the merits of a OFX4 versus a Bravo 1 prop on a light 25' 3700 lb dry wt hull (Nordic Rage) with 600hp +/- and Bravo X 1.5 : 1 drive would be very much appreciated.

I do not carry the Powertech line although they have tried to recruit us as dealers. I have worked on these propellers on a small basis. At the risk of sounding Bias, we have still found the Bravo 1 to out perform the PT. I have even Lab Finished these props. The results were minor increases in acceleration and decreases in slip. The slip decrease pulled the R's down and the speed stayed the same.

B

I've run the PowerTech OFX on several heavy old V- bottoms. In testing back to back (same pitch) with the Merc Bravo One, I've found the PowerTech to be up to 2.5 mph faster on top end over the Merc. The Merc did out perform the PT at mid range cruise.

All told, I've been extremely impressed with PowerTech propellers. I feel they are about the most efficient box stock prop on the market today. They are very reasonably priced and more often than not, out perform props two to three times the price.

I had just ordered a set of 28 PT's, hope to get them tomorrow. I'll post the results.

Kurt

I have a PT 23p Right that is perfect. Don't need it. Have you considered Hydromotive? They offer bow lifting props also, They end with "X" very hard to find used. I am assuming you want a bow-lifter??

Ive tried a half dozen props and came back to a Mirage Plus.

Zoob

Thanks for your insight. That is what I was asking for.

Thanks for the information. Mine is a small 25' light 3700 lb single engine Nordic Rage stepped V bottom hull running in the low to md 80's at 5600 - 5800 rpm with a heavily labbed Bravo 28. It was suggested that if I could not make my boat porpouse by trimming out with the current prop (I can not) that more bow lift might improve top end speed. The Protech OFX was proposed for max bow lift. I am trying to learn more about this claim.

Please read the history I just posted explaining why I am asking about the Powertech OFX prop. I may or may not need a bow lifting prop. I do not know at this point. If I do not I will stick with a Bravo. The Powertech OFX is appealing to me for a number of reasons...it comes in one inch pitch increments, they offer an exchange (for a fee) if the pitch is not right and the price. I believe Hydromotive's are pricier. One down side for me is that 28 is the max pitch available and I may need more. TBD with future dyno test.

At this point in time all I am trying to do is find history / experience on the Powertech OFX versus Bravo prop on a similar rig as mine. So far no luck in that regard.

Thanks,

Bill

Brett,

Your post #71 on this thread is why I thought that you were a Powertech dealer... at least this time last year.

http://www.offshoreonly.com/forums/p...ropellers.html

Thanks again for your comments.

-Rage, I got a bit confused with PowerTech prop designations. Sorry but I have NOT yet run the OFX series PowerTech prop.

I have had great sucess with their OFS series prop on heavy older straight bottom boats. I'm currently running the OFS on my Top Gun

Kurt

I recieved a set of PowerTech 4 blade OFX 28's and a single 3 blade 24 OFX today. Thought I'd share a few pics as they are a very interesting design.
The round ear prop is the PowerTech OFS.

Kurt

Rage,

We were aproached to sell the product and we would have if people were interested. However, we never recieved any requests for them. Also, their product was lack luster in my opinion. That being said, I feel they have come a long way recently. They are working with a number of other manufacturers and produce castings for many groups. This operation has, I'm sure, taught them a great deal. As I have said before, they make a good product. We just feel some of the other products we sell are as good and in most cases better. Every identical application is different. Therefore, on any given day, Hering, Mercury, TU, PT, Turbo or hopefully BBLADES own castings will give the best numbers. Untill then we will continue offer the best services we can.

Brett

Biggus did you get the OFX for the boat you're currently running the OFS props on? Just curious what the difference in speed and handling was between the OFS and OFX.

-No, the OFX's are not for my Cig. I'd try them but they were fitted with 1" hubs. (I'm running Konrad drives, 1.25" shafts)

Kurt,

What boat are the set of OFX4 28's for and the OFX3 24?

Got ya, well please let us know your opinion on the OFX props. I have to say this prop has my attention!

ttt

I know this is an old post but I'm curious about the OFX series prop.

Biggus - can you provide any data on the OFX3 as to which boat you tried this on and how did it perform?

Thanks

We try OFX5x23 on high ventilated drive and compare it with Maximus 15-1/4x26.

OFX:
- hughe slip, cca 20%.
- week bow lift and we never try it at full throtle becouse of this, it was to dangerous.
- want to "spin" boat over right side. We need two passangers in left to go stright-high torque.
- minimum speed 26 mph.
- each turn it is blow out if not trimed in.

Maximus 15-1/4x26 ST
- slip 14%.
- enough bow lift.
- straight ride, no more tendency to "spin".
- minimum speed 21 mph.
- no more cavitation at turns.


After we give OFX for test someone with classic heavy boat and B1 drive. He reach 36 mph and start to plane emediatelly. With alu Mercury props and Signature M500 he did not reach more than 29 mph and always he have troubles with cavitation on start. He buy it from me and he is really happy with it.
I give him mine Maximus for test. He also find lower minimum plane speed, he reach one mph more, but it was owerproped for his engine.