Go Back  Offshoreonly.com > Owners Forum > Formula
382 Fastech Imco SCX 2x900hp prop ideas >

382 Fastech Imco SCX 2x900hp prop ideas

Notices

382 Fastech Imco SCX 2x900hp prop ideas

Old 01-30-2018, 01:11 PM
  #1  
Registered
Thread Starter
 
Join Date: Apr 2010
Posts: 23
Likes: 0
Received 0 Likes on 0 Posts
Default 382 Fastech Imco SCX 2x900hp prop ideas

Hi

would like some ideas for my 2001 382 Fastech with 900hp motors, Imco scx drives, no boxes. I run Maximus 32 out of box and spinning props out. Are now in the 90mph range and 60mph at cruise 3500rpm. But would like top end speed.
Any ideas or experience?

Thanks
Bompa is offline  
Old 01-30-2018, 07:17 PM
  #2  
Registered
iTrader: (5)
 
Join Date: Mar 2008
Location: Traverse City MI
Posts: 3,444
Received 64 Likes on 33 Posts
Default

Lets get real here the goal is to break 100mph. Sounds like you already have a pretty sweet setup, congrats! First option to always consider is selling and buying a faster boat. If you love yours and want to keep it then the best value per speed and reliability gain would be Arneson Asd7m drives (bravo conversion). Easily break 100mph and it comes with all new steering, trim, boxes, etc.

You could keep dumping money into your setup and get lucky dialing it in but most likely will end up spending more than the Arnesons.

Honestly where your at now there's not many little things nor inexpensive upgrades that will get your past 100mph so is it even worth messing with or just leave alone and enjoy
offshorexcursion is offline  
Old 01-31-2018, 08:19 AM
  #3  
Registered
Gold Member
 
PROWRENCH's Avatar
 
Join Date: Apr 2011
Location: LAINGSBURG/TORCH LAKE MI
Posts: 463
Received 1 Like on 1 Post
Default

Mine runs low 90's with stock 700's, spinning out. I think the NXT's are probably some of the difference, but my propshaft centerline is quite high as well, which just makes getting on plane a little more tricky. Other than that, boat is rock solid at speed.
PROWRENCH is offline  
Old 01-31-2018, 09:39 AM
  #4  
Forum Regulator
VIP Member
iTrader: (1)
 
Sydwayz's Avatar
 
Join Date: May 2001
Location: Worldwide
Posts: 23,349
Received 594 Likes on 264 Posts
Default

Russ/Thp500s should chime in on his experience on his 382 with HP500s and ProChargers. He eventually rebuilt as NA, but ran it for one season with the blowers.
Sydwayz is offline  
Old 01-31-2018, 11:00 AM
  #5  
Registered
Thread Starter
 
Join Date: Apr 2010
Posts: 23
Likes: 0
Received 0 Likes on 0 Posts
Default

Yes 100mph is the target and as PROWRENCH says low 90s with 700sci and NXT i would think 100mph would be easy with 900hp. But i have a low x dimension, almost no cavitation when getting on plane, the boats jumps out of the water with no problems.
i would think my boat is propped wrong and would like some ideas to try before installing Arnessons😅
Bompa is offline  
Old 01-31-2018, 11:07 AM
  #6  
Platinum Member
Platinum Member
iTrader: (6)
 
F-2 Speedy's Avatar
 
Join Date: May 2012
Location: Midwest & T-Rock
Posts: 8,715
Received 1,411 Likes on 656 Posts
Default

how are you getting 900hp out of the 500 efi's ? as stated in your profile
F-2 Speedy is online now  
Old 01-31-2018, 12:11 PM
  #7  
Registered
Thread Starter
 
Join Date: Apr 2010
Posts: 23
Likes: 0
Received 0 Likes on 0 Posts
Default

Are not the same engines anymore
Bompa is offline  
Old 01-31-2018, 12:34 PM
  #8  
Registered
 
Join Date: Aug 2012
Location: Cincinnati ohio
Posts: 620
Received 4 Likes on 4 Posts
Default

Sounds like you need to try shorties. And or boxes and shorties
dsmawd350 is offline  
Old 01-31-2018, 01:26 PM
  #9  
Registered
 
Join Date: Jul 2012
Location: Central Ohio
Posts: 461
Likes: 0
Received 1 Like on 1 Post
Default

Originally Posted by dsmawd350 View Post
Sounds like you need to try shorties. And or boxes and shorties
x2 there is a good amount of Fastecs setup with boxes.
MINK is offline  
Old 01-31-2018, 01:33 PM
  #10  
Registered
Gold Member
 
PROWRENCH's Avatar
 
Join Date: Apr 2011
Location: LAINGSBURG/TORCH LAKE MI
Posts: 463
Received 1 Like on 1 Post
Default

I have not gone as far as measuring, but by eyeballing it appears that my prop centerline is nearly identical to the hull surface. It was a learning curve for getting on plane, but a piece of cake now that I know what to do. Very rough seas is a bit more of a challenge though, especially with a full load. If I had 400 more hp, definitely 100. Or faster spinning in.
PROWRENCH is offline  

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service - Do Not Sell My Personal Information -

Copyright 2021 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.