UL-1 Upgrade Help

[papa]

Hi Guys

I have a couple of UL-1 in stock and I would like to upgrade with Neu motor and ETTI 150 ESC for 4S application, I would love to know what you guys recomend. As I would like to use it as one of our race boats.

I have allready sorted out the sponsons and Turn fin area.

[nate]

Almost 50% of the members here would recommend a Neu 1515 1y 2200kv, Hydra120, and 4s2p.

Try running an x442-x447.

49-50mph Race hydro

[detox]

Almost 50% of the members here would recommend a Neu 1515 1y 2200kv, Hydra120, and 4s2p.

Try running an x442-x447.

49-50mph Race hydro

That combo will burn up the Hydra 120. Today I burnt up my Hydra 120 switching from the smaller m440 to larger m445 using same combo. So just guessing I would use ether the Etti or the Hydra 240.

[nate]

That combo will burn up the Hydra 120. Today I burnt up my Hydra 120 switching from the smaller m440 to larger m445 using same combo. So just guessing I would use ether the Etti or the Hydra 240.

I dont see how a 442 would, Im using 5s on an m447 and my hydro 120 keeps low temps.

Id maybe think about running easy on an x445 and up..

then yea probably...

Iv had no problems with mine.

Hey detox what neu motor was in your UL-1??

[Brushless55]

Hi Guys

I have a couple of UL-1 in stock and I would like to upgrade with Neu motor and ETTI 150 ESC for 4S application, I would love to know what you guys recomend. As I would like to use it as one of our race boats.

I have allready sorted out the sponsons and Turn fin area.



What's wrong with stock?

[nate]

What's wrong with stock?

Guess he wants it faster. The boat is fun to run stock and is fast as is, but dang is 50mph and up an attention catcher haha

[detox]

Hey detox what neu motor was in your UL-1??

1515 1y 2200kv...

UL-1 was hauling ace using the m445, but the smaller m440 was esier on HYDRA 120 esc.

Your 1.5y 1500kv motor with 5s lipo power pulls less amps I am sure.


Here's my setup in picture
..........

[nate]

1515 1y 2200kv...

UL-1 was hauling ace using the m445, but the smaller m440 was esier on HYDRA 120 esc.

Your 1.5y 1500kv motor with 5s lipo power pulls less amps I am sure.


Here's my setup in picture
..........

Very Nice! I believe I already asked, but didnt your boat GPS in the 50's as well??...

[detox]

Very Nice! I believe I already asked, but didnt your boat GPS in the 50's as well??...

The stock setup using GR L40 x 57/3 clocked 50.2mph. I never GPS'd this setup, but I am sure it was knocking on 60mph. After doing the sponson mod and adding lead weight to outer lefthand sponson UL-1 is more stable crossing wakes.

...

[nate]

The stock setup using GR L40 x 57/3 clocked 50.2mph. I never GPS'd this setup, but I am sure it was knocking on 60mph. After doing the sponson mod and adding lead weight to outer lefthand sponson UL-1 is more stable crossing wakes.

...

Detox, I finally got 60.5mph out of mine today with a little tweaking.

[bigpapa]

i still want sum nate lol of the UL-1

[bigpapa]

by the way nate congrats on the 60 pass great job

[nate]

Thanks man

[bigpapa]

n/p u earned it 4 sure

[bigpapa]

wanted to test tommorrow storming here now ): added 3 caps to esc see what happens

[nate]

Cool. Im about to start another thread for my next build. Check out boat building in about 15minutes.

[papa]

thanks Guys

I will give it a go and let you all know how we go, I will be going for the 1515-1Ys with water cooling and running the ETTI 150 with caps board. I will try both the m440 and 445

thanks for the help

[nate]

thanks Guys

I will give it a go and let you all know how we go, I will be going for the 1515-1Ys with water cooling and running the ETTI 150 with caps board. I will try both the m440 and 445

thanks for the help

I think Iv changed my mind as Detox could be right, don't run the x445, maybe run an x442 first.

[papa]

Hi All

I have decided that this UL-1 needs my help in order to get it to race trim and perform well and last a couple of seasons.
I have started off by removing stuffing tube and will replace with a thicker and tube that suits .187 flex cable.
I have also cut two holes on each of the sponsons to see what is actually done by the factory and I was not impressed, ( fine for everyday play boat) so I will now add the sponson plates that Darin from this forum has kindly uploaded but I will do it on each side to stiffen the rear of both sponsons because I feel these boats stock are weak in these areas and need attention, I also want to add a piece of ply and resin over the ride pads (sponsons) to try and also stiffen the sponson adding some weight may help with blow overs,,,,,, my question is how much weight should I add ? If any. I’m going to also install Nut inserts behind the engine mounts because from the photos below you will see its only a small piece of ply and in my case the left hand side of the mounts are screwed just on the edge of this small piece of ply.
I also noticed that both sponsons have a piece of lead tucked all the way up the front of the sponsons (pictured below)
I would not recommend this type of work to the everyday hobbyist as it requires a lot of work to repair to the glass and in my case my glass work is ok and I think if you are going to race it and we all know when we race and crash we want minimum or no damage done

[papa]

some more pictures of upgrades and repaired cracks.

[papa]

Nearly Done,,, just need to fit it all back and make a new cowling to suit.:thumbup::thumbup:

[Brushless55]

Nice!
I've thought about doing my Mean Machine this color.. :rockon2:

[detox]

Cool dissection of the UL-1, but I think all those extra mods are not needed. The latest updated UL-1 hull from Auquacraft allready has the beefed up turn fin area and lead weights mounted in tips of sponsons.

Try adding weight to lefthand side of hull to counter prop rotation.

Beautiful body work and paint BTW.


...

[papa]

Cool dissection of the UL-1, but I think all those extra mods are not needed. The latest updated UL-1 hull from Auquacraft allready has the beefed up turn fin area and lead weights mounted in tips of sponsons.






...
This is the latest UL-1 and Im sorry to say the sponsons/Turn fin Area are NOT beefed up at the slightest. Yes they do come with Lead weights tucked all the way up the front but the rest of it is really not what I call race crash ready.

:thumbup:

[Rumdog]

What a friggin joke! Still a fun boat with some mods though!

[TCR]

Thanks for all the great info George, I'm glad someone shed light on this hull. For a couple bucks more in parts and labor this really could have been a sound boat. It might have cost us an additional 50.00 or so, but it'd be worth it. I'll run mine til they bust up and just buy another, as said above it's a very FUN RTR.

[Grimracer]

This is the latest UL-1 and Im sorry to say the sponsons/Turn fin Area are NOT beefed up at the slightest. Yes they do come with Lead weights tucked all the way up the front but the rest of it is really not what I call race crash ready.

:thumbup:


I want to clarify... ALL boats shipping FROM US after 6-15 are updated..you must (for some reasion) gotten ahold of an older unit..

O yea.. the weights have been in there from day one.. nothing new there..


ROCK ON DUDES!

Grim

[Brushless55]

I want to clarify... ALL boats shipping FROM US after 6-15 are updated..you must (for some reasion) gotten ahold of an older unit..

O yea.. the weights have been in there from day one.. nothing new there..


ROCK ON DUDES!

Grim

Thanks Grim! :rockon2:

[TCR]

I want to clarify... ALL boats shipping FROM US after 6-15 are updated..you must (for some reasion) gotten ahold of an older unit..

O yea.. the weights have been in there from day one.. nothing new there..


ROCK ON DUDES!

Grim

This is not what Lisa is telling people.:olleyes:

[Brushless55]

What a friggin joke! Still a fun boat with some mods though!



these riggs are alot of fun for a RTR ! :thumbup:

[papa]

these riggs are alot of fun for a RTR ! :thumbup:


Yeah your correct they are a perfect RTR FUN BOAT no way are they ready to race if you are to upgrade power plant. Guys the mods I did on this boat I feel are required for seriuos electric racing and above all I want it to last me a couple of seasons:thumbup:

[Brushless55]

What a friggin joke! Still a fun boat with some mods though!


:popcorn2:

[basilpg]

Is it possible to plug in a 7.4v 2 cell 5000mah lipo and 14.8v 3 cel 5000mah lipo in series to a stock UL1? Will this damage the motor or ESC?

[Brushless55]

A 14.8v battery is a 4s pack, 3s pack is 11.1v
running 5s or 6s could damage the esc

[basilpg]

My mistake, I didn't mean a 14.8v but running a 7.4v and a 11.1v in series. Could this still damage the esc?

[Grimracer]

Might want to be carfull with that voltage.. The ESC is only rated up to 20V.. that is the edge.

Grim

[Brushless55]

It may have an over volt protection..
so running 5s may not work

[basilpg]

I gave it a try and ran it for about a minute. Managed to get 57.4mph (Garmin gps). The esc got very hot. I think I'll upgrade the esc to a Castle Creations Hydra HV 120. Is this advisable?

[Rumdog]

I would go with the ETTI 150 race.

[basilpg]

If I go with the Etti 150 do I simply plug it in and go or do I have to do programing to the esc to match it up to the setup.

[Stealth Assassin]

Hey,
How did those 4s packs fit??? My PolyRC 4s packs make the hatch buldge up.:confused2:

D




1515 1y 2200kv...

UL-1 was hauling ace using the m445, but the smaller m440 was esier on HYDRA 120 esc.

Your 1.5y 1500kv motor with 5s lipo power pulls less amps I am sure.


Here's my setup in picture
..........

[Stealth Assassin]

I want to clarify... ALL boats shipping FROM US after 6-15 are updated..you must (for some reasion) gotten ahold of an older unit..

O yea.. the weights have been in there from day one.. nothing new there..


ROCK ON DUDES!

Grim

Grim,
I bought my hull from someone In a never opened box. How can I tell If It the newer version???

Thanks,
D