Speed - RC Nitro Boats For all your rc nitro fuel burning boating needs.

AquaCraft U-18 Miss Vegas Hydro Thread_Make it Fast!

Reply
Old 08-04-2009, 11:08 PM
  #3726
FX4L2CX
 
Join Date: Jan 2005
Location: Chesapeake, VA
Posts: 138
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: AquaCraft U-18 Miss Vegas Hydro Thread_Make it Fast!

Take it easy on the Aqua .18 mods.....it doesn't take well to heavy mods and the weakest link in that engine is the crankshaft...trust me, the rear of the crank will say bye bye to the front end of the crank and make a drive through window in bottom of your crankcase real easy.
FX4L2CX is offline  
Reply With Quote
Old 08-04-2009, 11:12 PM
  #3727
srt10
 
Join Date: Jan 2008
Location: Frederick, CO
Posts: 5,969
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: AquaCraft U-18 Miss Vegas Hydro Thread_Make it Fast!

Quote:
ORIGINAL: malicent

sweet .32 but i take it your just in it for sport right? dont think theres a class for .32? but it would be a blast!

Sport no! SPEED
srt10 is offline  
Reply With Quote
Old 08-04-2009, 11:13 PM
  #3728
toyotatruckin
 
Join Date: Apr 2006
Location: Augusta, KS
Posts: 1,983
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: AquaCraft U-18 Miss Vegas Hydro Thread_Make it Fast!

sure there is, I believe its D class shoot might even be a challenge to avoid the .45 riggers
toyotatruckin is offline  
Reply With Quote
Old 08-04-2009, 11:17 PM
  #3729
srt10
 
Join Date: Jan 2008
Location: Frederick, CO
Posts: 5,969
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: AquaCraft U-18 Miss Vegas Hydro Thread_Make it Fast!


Quote:
ORIGINAL: toyotatruckin

sure there is, I believe its D class shoot might even be a challenge to avoid the .45 riggers
LOL!
staying out of the way of a 45rigger with a 32 Hydro !
srt10 is offline  
Reply With Quote
Old 08-05-2009, 10:29 AM
  #3730
ka350kaptain
 
Join Date: Aug 2005
Location: Rochester Hills, MI
Posts: 232
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: AquaCraft U-18 Miss Vegas Hydro Thread_Make it Fast!

We just race for fun within our club, no points or anything. Two classes: Stock RTR Hydro and Mod RTR hydro. THe only thing you can change in the stock class is the prop and fuel tank. In our mod class, the sky is the limit - any engine size, equipment changes, etc.

Heck, we even had one guy put a OS 46 in his! Unfortunately, he had a major steering malfunction, and it drove straight into the side of a concrete culvert shortly after launch. So, we didn't get to see how it would really run. Should be interesting though!
ka350kaptain is offline  
Reply With Quote
Old 08-05-2009, 06:41 PM
  #3731
malicent
 
Join Date: Sep 2007
Location: Bremerton, WA
Posts: 150
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: AquaCraft U-18 Miss Vegas Hydro Thread_Make it Fast!

mod is mod i guess!!!!!!!!! that cool though! we have to stick to .18 in mod class round here, not only that but the motor has to be under $100 witch really takes the fun out of mod class.
malicent is offline  
Reply With Quote
Old 08-05-2009, 07:35 PM
  #3732
Sean Bowf
 
Sean Bowf's Avatar
 
Join Date: Nov 2006
Location: Burkburnett, TX
Posts: 1,335
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: AquaCraft U-18 Miss Vegas Hydro Thread_Make it Fast!

Quote:
ORIGINAL: malicent

...we have to stick to .18 in mod class round here, not only that but the motor has to be under $100 witch really takes the fun out of mod class.
Anyone tried the new Deuce engine in the old boat yet?? It is less than 100 bucks... I am curious to know how it compares to the old engine...my guess is that it would be slower.

Sean
Sean Bowf is offline  
Reply With Quote
Old 08-05-2009, 08:11 PM
  #3733
G.W.
 
Join Date: Jul 2004
Location: cedar falls, IA
Posts: 321
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: AquaCraft U-18 Miss Vegas Hydro Thread_Make it Fast!

The new engine is faster, especially with the new pipe. But, the trick is to keep the jetting consistant. It needs a different (O.S.) carb.
G.W. is offline  
Reply With Quote
Old 08-05-2009, 11:04 PM
  #3734
Sean Bowf
 
Sean Bowf's Avatar
 
Join Date: Nov 2006
Location: Burkburnett, TX
Posts: 1,335
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: AquaCraft U-18 Miss Vegas Hydro Thread_Make it Fast!

Quote:
ORIGINAL: G.W.

The new engine is faster, especially with the new pipe. But, the trick is to keep the jetting consistant. It needs a different (O.S.) carb.
Well...I have not found the needle on the one I got for my kid yet. I spent a lot of time trying to find it without noticing that the carb was not opening all the way.

My point...I have seen a few folks mention getting speeds over 40MPH with the stock engine and a sponson mod on the old MV. The deuce has a sponson mod built in, and most of the speeds I have seen posted are high 30s. 4 to 6 MPH slower than the speeds I have seen quoted for the AQ engine.

It will take some time, but I will eventually get around to doing some more testing on the different engines, and see whats what. I was thinking that the new pipe was holding back the new engine.

Anyhow, how about sharing what you did to compare the engines to say that the new engine is faster...

Sean
Sean Bowf is offline  
Reply With Quote
Old 08-06-2009, 12:08 PM
  #3735
srt10
 
Join Date: Jan 2008
Location: Frederick, CO
Posts: 5,969
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: AquaCraft U-18 Miss Vegas Hydro Thread_Make it Fast!

Any thoughts to anyone using a OS.30VG Truggy motor?

Also who has the biggest motor in there MV ?
srt10 is offline  
Reply With Quote
Old 08-06-2009, 08:55 PM
  #3736
ka350kaptain
 
Join Date: Aug 2005
Location: Rochester Hills, MI
Posts: 232
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: AquaCraft U-18 Miss Vegas Hydro Thread_Make it Fast!

One person in our club is trying an OS .46....I'll keep you updated on that little experiment.
ka350kaptain is offline  
Reply With Quote
Old 08-06-2009, 11:34 PM
  #3737
srt10
 
Join Date: Jan 2008
Location: Frederick, CO
Posts: 5,969
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: AquaCraft U-18 Miss Vegas Hydro Thread_Make it Fast!


Quote:
ORIGINAL: ka350kaptain

One person in our club is trying an OS .46....I'll keep you updated on that little experiment.
OHHH MAN!
that will be awesome!
srt10 is offline  
Reply With Quote
Old 08-11-2009, 06:24 PM
  #3738
DARKPHREAKX
 
Join Date: Aug 2008
Location: Rockland, ON, CANADA
Posts: 34
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: AquaCraft U-18 Miss Vegas Hydro Thread_Make it Fast!

For you guys that upgraded the motor to the Dynamite .32, would this flex shaft work?

[link=http://www3.towerhobbies.com/cgi-bin/WTI0095P?FVSEARCH=aqub7883]Prop Shaft for the AquaCraft SuperVee Deep Vee Boat[/link]

Thanks
DARKPHREAKX is offline  
Reply With Quote
Old 08-11-2009, 08:36 PM
  #3739
FX4L2CX
 
Join Date: Jan 2005
Location: Chesapeake, VA
Posts: 138
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: AquaCraft U-18 Miss Vegas Hydro Thread_Make it Fast!

according to tower...that shaft is only 12 inches long and the vegas shaft is 15.4 inches long.....however, if you have modded your engine mount and location, all bets are off...
FX4L2CX is offline  
Reply With Quote
Old 08-12-2009, 08:52 PM
  #3740
ka350kaptain
 
Join Date: Aug 2005
Location: Rochester Hills, MI
Posts: 232
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: AquaCraft U-18 Miss Vegas Hydro Thread_Make it Fast!


Quote:
ORIGINAL: DARKPHREAKX

For you guys that upgraded the motor to the Dynamite .32, would this flex shaft work?

[link=http://www3.towerhobbies.com/cgi-bin/WTI0095P?FVSEARCH=aqub7883]Prop Shaft for the AquaCraft SuperVee Deep Vee Boat[/link]

Thanks
No. A 3/16"(.187) shaft is what we used. I have an Aeromarine one, but you could also use Octura or a Hughey. I bought mine at the LHS. The Hughey and Octura ones are available at www.offshoreelectrics.com

You need to remove the teflon liner as well when you use the 3/16" drive shaft.
ka350kaptain is offline  
Reply With Quote
Old 08-12-2009, 09:15 PM
  #3741
ka350kaptain
 
Join Date: Aug 2005
Location: Rochester Hills, MI
Posts: 232
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: AquaCraft U-18 Miss Vegas Hydro Thread_Make it Fast!

Ran the .32 again yesterday - second time out. I am still running the Grim 42 x 55 prop, and we are starting to lean her out a little at a time. She is definitely picking up speed - blew over once on a full throttle pass. Decided to put a little negative angle on the prop to keep the nose down - worked great. Nice and fast, but no blow overs. Lowering the turn fin helped alot as well. I tried an M445, but hit the rudder and dinged the prop good. I had to restrict the rudder travel a little (with the radio) to avoid that. I should still have plenty of rudder for the turns still. I'll try that M445 next week when I get it bent back into shape. I will also be trying the ABC H-4(42.5mm X 66mm pitch).

Will try to get a speed on her. My GPS flew out out of my R/C truck and hasn't been the same since. We have a radar gun available as well. I'll give that a try next week.
ka350kaptain is offline  
Reply With Quote
Old 08-12-2009, 11:30 PM
  #3742
srt10
 
Join Date: Jan 2008
Location: Frederick, CO
Posts: 5,969
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: AquaCraft U-18 Miss Vegas Hydro Thread_Make it Fast!


Quote:
ORIGINAL: ka350kaptain

Ran the .32 again yesterday - second time out. I am still running the Grim 42 x 55 prop, and we are starting to lean her out a little at a time. She is definitely picking up speed - blew over once on a full throttle pass. Decided to put a little negative angle on the prop to keep the nose down - worked great. Nice and fast, but no blow overs. Lowering the turn fin helped alot as well. I tried an M445, but hit the rudder and dinged the prop good. I had to restrict the rudder travel a little (with the radio) to avoid that. I should still have plenty of rudder for the turns still. I'll try that M445 next week when I get it bent back into shape. I will also be trying the ABC H-4(42.5mm X 66mm pitch).

Will try to get a speed on her. My GPS flew out out of my R/C truck and hasn't been the same since. We have a radar gun available as well. I'll give that a try next week.

Awesome!
Keep us posted. I just fininshed painting my MV, letting the boat dry good before I put the decals on
srt10 is offline  
Reply With Quote
Old 08-13-2009, 06:54 AM
  #3743
DARKPHREAKX
 
Join Date: Aug 2008
Location: Rockland, ON, CANADA
Posts: 34
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: AquaCraft U-18 Miss Vegas Hydro Thread_Make it Fast!

Ok so a A 3/16"(.187) shaft is needed. What length? Also which collet and cable coupler do I need?
DARKPHREAKX is offline  
Reply With Quote
Old 08-13-2009, 11:06 PM
  #3744
ka350kaptain
 
Join Date: Aug 2005
Location: Rochester Hills, MI
Posts: 232
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: AquaCraft U-18 Miss Vegas Hydro Thread_Make it Fast!

My Aeromarine drive shaft was 18" to begin with, and cut down to the length I needed. Since all these mod boats have slightly different engine placement, one size doesn't fit all. Once you get the engine mounted, then you can cut it to size. I also use an Aeromarine coupler, along with the stock flywheel. I will try to get the part number for the collet. Probably not till Monday though.

Flex shaft: http://www.aeromarinerc.com/index.ph...mart&Itemid=53
ka350kaptain is offline  
Reply With Quote
Old 08-14-2009, 08:47 PM
  #3745
TrEsPaSS
 
Join Date: Feb 2009
Location: Allentown, PA
Posts: 59
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: AquaCraft U-18 Miss Vegas Hydro Thread_Make it Fast!

No need for a 18" the Prather 12" will work fine, no need to trim, just clean up the tip.

Flywheel: Shockwave 36 No. PRB2057
Flex Coupling (collet): Aeromarine No. AEM1732 /OS21 X 187
Flex Cable: Prather No. 8020 3/16" x 12" Flex Cable (no need for trimming, clean up end)
Drive Dog: Aeromarine AEM1510 3/16"
Prop: Octura M445
TrEsPaSS is offline  
Reply With Quote
Old 08-14-2009, 09:32 PM
  #3746
TrEsPaSS
 
Join Date: Feb 2009
Location: Allentown, PA
Posts: 59
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: AquaCraft U-18 Miss Vegas Hydro Thread_Make it Fast!

Pipe: Macs Tuned Pipe No. 1328 (trimmed 2 3/8")
Pressure Fitting: Prather No. 9005
Flywheel: Shockwave 36 No. PRB2057
Flex Coupling (collet): Aeromarine No. AEM1732 /OS21 X 187
Flex Cable: Prather No. 8020 3/16" x 12" Flex Cable (no need for trimming, clean up end)
Drive Dog: Aeromarine AEM1510 3/16"
Prop: Octura M445
Tail Nut: Octura OC6PNMM
Turn Fin: Aquacraft AQUB9539 (UL-1 Black Fin), need to elongate the bracket holes to fit

other mods:
- Engine Mounts (use MVD stock rubber bushings and inserts)
- Tuned pipe will prohibit the used of the Grim cowl lockes..toss them..they are junk.. fab new locks with hook and O-ring
- Set rudder back at least 3/4".. I used square aluminum tubing
- Control box.. (same setup as cowl locks, used picture frame hangers)

Here ya go:

After first WOT run without spinning:








RUDDER EXTENSION:



COWL LOCKS


BOX LOCKS


TrEsPaSS is offline  
Reply With Quote
Old 08-14-2009, 10:06 PM
  #3747
FX4L2CX
 
Join Date: Jan 2005
Location: Chesapeake, VA
Posts: 138
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: AquaCraft U-18 Miss Vegas Hydro Thread_Make it Fast!

Quote:
ORIGINAL: DARKPHREAKX

Ok so a A 3/16''(.187) shaft is needed. What length? Also which collet and cable coupler do I need?
There are a few you can choose from depending on you local hobby store, but I use the Octura .150 flexshaft with the 3/16 stub. I also use the Octura .150 collet. The flexshaft has to be welded/silver brazed in with the kind I use, but I think they make it already welded too and about 18 inches long...mine is exactly 15 3/4 long (from end of flexshaft to the end of the threaded stub) after I silver braze and cut it to length and goes up into the collet until it hits the end of the crankshaft..also I leave about 1/8 inch space between the drivedog and strut and my engine is in the stock position. If you do go with the Octura brand, pay attention because they also make them in the .130 size too...just make sure that the collet and flexshaft are the same size.
FX4L2CX is offline  
Reply With Quote
Old 08-15-2009, 07:35 AM
  #3748
DARKPHREAKX
 
Join Date: Aug 2008
Location: Rockland, ON, CANADA
Posts: 34
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: AquaCraft U-18 Miss Vegas Hydro Thread_Make it Fast!

Thanks for the information guys!

TrEsPaSS: Are you running the Deuce Vegas? I measured my MV Ver2 flex shaft and its 15.5 ish inchs. But maybe with the different flywheel and collet that makes up for the 3.5 inchs?
DARKPHREAKX is offline  
Reply With Quote
Old 08-15-2009, 09:43 AM
  #3749
TrEsPaSS
 
Join Date: Feb 2009
Location: Allentown, PA
Posts: 59
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: AquaCraft U-18 Miss Vegas Hydro Thread_Make it Fast!


Quote:
ORIGINAL: DARKPHREAKX

Thanks for the information guys!

TrEsPaSS: Are you running the Deuce Vegas? I measured my MV Ver2 flex shaft and its 15.5 ish inchs. But maybe with the different flywheel and collet that makes up for the 3.5 inchs?
Yes, I am running a deuce...sorry for the misinformation
TrEsPaSS is offline  
Reply With Quote
Old 08-15-2009, 04:19 PM
  #3750
coyv10
 
Join Date: Jan 2007
Location: Lubbock, TX
Posts: 202
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: AquaCraft U-18 Miss Vegas Hydro Thread_Make it Fast!

Did you move the engine forward any for the .32?
coyv10 is offline  
Reply With Quote
Reply


Thread Tools
Search this Thread
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off



All times are GMT -8. The time now is 02:09 AM.