PDA

View Full Version : Powertech propellors



robothefisho
07-06-2012, 08:43 PM
Hi all,

I am chasing first hand info on Powertechs CFF4 stainless steel 4 blader. Has anyone used one of these and if so what gains/losses were experienced compared to the previous prop.

Reason being, I want a good stern lifting prop and this one seems to be a good, semi cleaver style 4 blade, of which there arn't many. If I can help it, I didn't want to be the Guinea pig.

The boat is a 550 plate alloy centre console weighing in its normal operating condition (Boat/fuel/bait/people/motor) around 1550kg. The motor is Suzuki 140 2.59 ratio. Current top speed is 68 km/h at 6200rpm.

gofishin
08-06-2012, 09:09 AM
Not sure of that particular model but have used & tried their ELE4 & OFS4 on a few boats & motor combos. ELE had the greatest transom lift but from memory is their 'entry' level SS model. It ventilated easy on yams but not on a verado. As props have different habits on different boats, regardless if they are sized correctly, you will probably just have to try it.
What diam & pitch?
Cheers
Brendon

robothefisho
08-06-2012, 02:08 PM
Thanks Brendon,
The current prop is 4 blade alloy 13.75 diamter 21 pitch with aftermarket blade tip cupping. The CFF4 is 14 diameter 21 pitch I hope as on some websites only listed to 19 pitch but on others 21 pitch. The current prop has 13% slip at WOT so hopefully can bring this down a bit and through getting the boat a bit higher out of the water get a bit more awesomeness. I might just bite the bullet and order one.

Cheers

gofishin
08-06-2012, 08:42 PM
At 21 it would be too big at that diam, as my guess, 19 might be ok. An option would be SOLAS, who would have quite a few 4 bld options to suit, swap until you are happy.
Cheers

Swanie1975
09-06-2012, 07:40 AM
im now spinning a 13.75 x 20p mercury trophy plus 4 blade on my suzi 140. good holeshot and cruise with top of 69ks at 6250 WOT.
i looked at the powertech stuff but wasnt keen to take a gamble on it so i went merc instead
cheers ryan