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-   -   Formula 382 Fastech like more speed! (https://www.offshoreonly.com/forums/prop-talk/237142-formula-382-fastech-like-more-speed.html)

Bompa 08-18-2010 03:19 PM

Formula 382 Fastech like more speed!
 
Hello

I have a 2001 382 Fastech with 500efi, without boxes, air and genset. Spinning 26 Bravos non labbed. My topspeed is 70mph and once 72mph at 5000rpm with alot of trim (8-9). Cruise at 3500rpm is about 46mph depending on trim. I like to see 75-76mph at top, more cruise speed would also be great. Is that possible with some proppwork?

Thanks Bompa

Griff 08-19-2010 01:43 AM

Try spinning the props in to lift the bow more.

Bompa 08-19-2010 10:24 AM

Could try that but do i need so much bow lift on a stepphull? Does spinning the propps in usualy increase the speed?

Griff 08-19-2010 12:19 PM

The 382's are HEAVY. I knew a guy with a 382 and he went to 5 blades to get better cruise speed and then switched to spinning the 5 blades in to get his top end speed back.
It really depends on the boat and what it needs as to whether you will gain speed. A lot of boats gain speed, but sometimes handling suffers.

BONDO10 08-20-2010 08:52 AM

Bompa, I don't think you will see 76 with 500's but I could be wrong.Give Brett at BBlades a call. I am sure he can get your boat around 74. He may set up your 26's or you can try some 28's from his loaner program. I don't know the characteristics of the 500's versus the 525's,but I do know that the 26's would not be enough prop for my boat. I run labbed 28's and labbed 26 five blades. BTW i have the same equipment as you,air,genset but no boxes. Hope this helps.

Bompa 08-20-2010 04:38 PM

Will try to spinn propps in some day, and my mercury dealar want my to try some Revulution 4 propps so see what that would give, and i have some Maximus 26 labbed ordered but will see if they show up. BONDO10 i dont have air and genset so my boat should be lighter. Thanks Bompa

fossil fuel 08-21-2010 04:38 PM

More speed
 
700's w/nxt's will get you 97. Above 80 my 382 sets on the back step and is solid. The issue with bravo drives is that it is a heavy boat and tends to be hard on drives especially in the ocean. See http://www.youtube.com/watch?v=OowWR...e=channel_page

Bompa 08-23-2010 02:46 PM

Looks nice, 700sci with nxt would be great but i dont have the money. The Bravos seems to hold up pretty good with the 500efi so far. Does the 382 Factech like much bowlift?

J.B. Marshall 08-23-2010 03:14 PM

I have a 2000 382 w/500 EFI's, no gen or holding tank, I do have AC and ext boxes and I run on stock 28's and max out at 5200 rpm's and see 74 mph. I cruise at 45 mph @3700 rpm's.

I want to move closer to 30's to have better cruise speed at lower rpm's I can't imaging running on 26" props. You must have had then worked pretty close to 28".

Bompa 08-24-2010 01:59 PM

Dont think any job have been done to them, not by me anyway. And my slip numbers are pretty low.

Bravo 26 1.5ratio
20% at 3500rpm
13,5% at 5000rpm


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