Limitless My Limitless V2 Build - Nothing too crazy (yet)

[EJunlimited]

Finally got around to setting up the shocks with nitro tubing and nylon spacers in the front, as well as cutting down the front and rear spoilers for aero.

Rear all set up:

For the fronts, I inserted nylon spacers on the shaft inside the shock body in order to lower the front end:

Here, you can see the difference; vehicle left side is shock with nylon spacer inside, vehicle right side is regular with no spacer...you can see how it brings the arm up and lowers the stance of the front end:

Front done:

Aero done:

How it sits now, notice the front end is lower; also, suspension in rear will not squat below the front end level:

Waiting for the batteries to charge, might not have enough daylight to do a pass.

 

[EJunlimited]

Hoping to get a few passes in this evening!

 

[LibertyMKiii]

Keep an eye on the fuel tubing. I came up with a pre-run check list....
I had some split on me and then moved to they Tygon tubing on amazon and never had an issue again.

 

[EJunlimited]

Keep an eye on the fuel tubing. I came up with a pre-run check list....
I had some split on me and then moved to they Tygon tubing on amazon and never had an issue again.

Will do, thanks for the heads up!

 

[dure16]

Keep an eye on the fuel tubing. I came up with a pre-run check list....
I had some split on me and then moved to they Tygon tubing on amazon and never had an issue again.

Which size tygon?

 

[EJunlimited]

Well I got to my speed run road to find they were doing controlled burning extremely close by, it was raining ash and very smoky. So no pass tonight. Will have to wait til the weekend!

 

[LibertyMKiii]

Which size tygon?

This is the one I used in my VTE2.
I assume it would work on the Arrma shafts also:
Tygon Genuine F-4040-A Premium Cut Length Fuel Line (ID: 1/8" OD: 1/4") (3 Feet) https://a.co/d/bOGf27K

 

[EJunlimited]

As I am waiting for my batteries to charge, I decided to put a bigger pinion gear in. Put a 36T pinion in there. It had a 32T.

Gonna do some passes as soon as these batteries are charged! Nice day today...a little windy but not too bad.

 

[Ron Burgandy]

Looks good

 

[EJunlimited]

Well, that was a disappointing outing. It kept cutting right after reaching full throttle. I'm not sure if the Spektrum 160A ESC couldn't handle a 36T pinion (thought it would be able to), or if the LiHV Powerhobby 15.2v 9000mah 130c batteries voltage sagged way too quick? Only reached 103, which was my top speed the last time.
Also, at some point I lost power to the front wheels, so I was RWD only for a bit...spun out off of the road and crashed, bending the front splitter and pulling out two screws from it, so not serious but it happened.
Oh, and there were freaking gnats everywhere.

 

[joshludden]

Well, that was a disappointing outing. It kept cutting right after reaching full throttle. I'm not sure if the Spektrum 160A ESC couldn't handle a 36T pinion (thought it would be able to), or if the LiHV Powerhobby 15.2v 9000mah 130c batteries voltage sagged way too quick? Only reached 103, which was my top speed the last time.
Also, at some point I lost power to the front wheels, so I was RWD only for a bit...spun out off of the road and crashed, bending the front splitter and pulling out two screws from it, so not serious but it happened.
Oh, and there were freaking gnats everywhere.

View attachment 288439

Just a couple suggestions from an amateur speed runner here. Next time you pull the motor I would ditch those crappy button head screws in the top of your motor mount & replace them w/ cap heads & washers before they strip out on ya. Would also recommend getting rid of the hoons & running some grps- they have way more grip w/ the softer compounds

 

[EJunlimited]

Just a couple suggestions from an amateur speed runner here. Next time you pull the motor I would ditch those crappy button head screws in the top of your motor mount & replace them w/ cap heads & washers before they strip out on ya. Would also recommend getting rid of the hoons & running some grps- they have way more grip w/ the softer compounds

Yeah I still have to order the cap heads.
The hoons really seem to like the road I use (when all four wheels are getting power LOL).

I gotta pull apart the front and see why it's not transferring power up there.

Also gonna try my Spektrum batteries next time and keep the 36t pinion on it to see if they behave better.

So much to work on and not enough time lol.

 

[fozzy71]

Finally got around to setting up the shocks with nitro tubing

Bump Stops > Fuel Tube IMO

 

[EJunlimited]

I'm wondering if I need to allow the voltage to drop a little more with a taller pinion, so maybe I should try turning off the low voltage cutoff on the ESC.

 

[joshludden]

I'm wondering if I need to allow the voltage to drop a little more with a taller pinion, so maybe I should try turning off the low voltage cutoff on the ESC.

I turn it off (xlx2 tho)

 

[EJunlimited]

I turn it off (xlx2 tho)

Mine is currently at it's stock "medium" setting. I'll turn it completely off.
In my head, that would make sense - putting out a lot of power allowing voltage to drop but then climb back up as it continues to provide power to the wheels. Also I remember Raz describing that's what happens - battery voltage drops pretty low, then climbs back up, and that's when, in his words, "the speed run begins"

 

[EJunlimited]

This is why I lost drive to the front wheels:

Set pin screw went missing from drive cup of center spool.

New one installed:

Installed new splitter:

Old:

 

[EJunlimited]

Did a run today after the repairs and changing ESC settings (changed LVC cutoff to low, changed punch to level 1)

107 top. Less than what I was expecting, but a little higher than last outing. I'm going to try different batteries.

 

[EJunlimited]

Video of above outing:

 

[EJunlimited]

Hit a new top speed and personal best today...111 MPH, a few passes. Same setup as previous, but using the Spektrum 4S 5000mah 100c Smart batteries.

Now to make more adjustments and go faster!