The top speed thread!

[Cheetah928]

Ok, so here i am out running my slash on the 3s for speed runs, and after putting some more weight on the front, i was able to keep 4 wheels on the ground somehow. I managed to hit 71! Here is my tqi dashboard for proof!

So now I'm asking you, what are your top speeds?

 

[DavidB1126]

3s with a slash and 71! Thats insane! You sure it's actually 71 though? The Traxxas TQi measures speed by the motor rpm/sensor I'm pretty sure it doesn't measure it by gps so if you take account for drive train loss, the overall speed could be less. Not totally sure though, haven't used a Traxxas app before.

I use a cheap bike speed gps meter from Amazon on mine, I think it's called XOSS, and with the pro4, slash and rustler they all go about 37.5/38mph. That being 2s and 4000kv. Should put it on the Typhon. I would expect it go probably like 35. With that being stock gearing, stock 2050kv motor with a regular 4s. Typhons are super heavy.

Skyrc gnss is the most accurate GPS for recording speed and also shows you more info like drag stats. It's pretty cool, but expensive.

 

[332_RC]

73.4mph with my Limitless before it amped out. TP motor pulls 209-225amps easily & that ESC couldn't handle it. MMX8S installed, tested, calibrated, yet to full pull run. MMX8S pushes 399amps & it's geared for 110mph. Telemetry unit installed in chassis, runs off SR6110AT through a X-BUS, grabs SATs, & sends info to the DX6C, right on the screen.

 

[Cheetah928]

3s with a slash and 71! Thats insane! You sure it's actually 71 though? The Traxxas TQi measures speed by the motor rpm/sensor I'm pretty sure it doesn't measure it by gps so if you take account for drive train loss, the overall speed could be less. Not totally sure though, haven't used a Traxxas app before.

I use a cheap bike speed gps meter from Amazon on mine, I think it's called XOSS, and with the pro4, slash and rustler they all go about 37.5/38mph. That being 2s and 4000kv. Should put it on the Typhon. I would expect it go probably like 35. With that being stock gearing, stock 2050kv motor with a regular 4s. Typhons are super heavy.

Skyrc gnss is the most accurate GPS for recording speed and also shows you more info like drag stats. It's pretty cool, but expensive.

ooh cool. yeah not 100% sure the tqi is 100% accurate, but i think it does account for drivetrain loss a bit because i gunned it sitting on my stand, so its not actually moving, and it said 84! pretty crazy how fast these things go. 30k+ rpm.

 

[Cheetah928]

View attachment 244221
73.4mph with my Limitless before it amped out. TP motor pulls 209-225amps easily & that ESC couldn't handle it. MMX8S installed, tested, calibrated, yet to full pull run. MMX8S pushes 399amps & it's geared for 110mph. Telemetry unit installed in chassis, runs off SR6110AT through a X-BUS, grabs SATs, & sends info to the DX6C, right on the screen.

thats crazy! i bet its smoking esc's left and right if you have it ready for 110!

 

[332_RC]

thats crazy! i bet its smoking esc's left and right if you have it ready for 110!

I tried a Spektrum 160a. Did four runs. Runs fine to 65mph. Handles it, until I ramp the throttle all the way to full. About 2-3 seconds later, buuuuu, ESC amps out. Loses all throttle & reverse. Not good. I hit the curb. The ESC didn't burn, it would still run after a power cycle, just shuts down at 70+ upon full trigger. I've bench tested the MMX8S, bound to a stand, like a dyno, & it doesn't have any trouble or fear of the TP4050 1950KV motor. It SCREAMS. The spot I run, got gated. I need 1000ft minimum to run. Still scouting a appropriate spot. And I had to rebuild the front end. RC life.

 

[Warby]

*115mph

 

[332_RC]

*115mph

View attachment 244224

Wow! 115mph! Nice!

What rig?? @Warby

 

[Suburban_Hooligan]

iv never chased high speeds, but a friend of mine built an RC18R into a speed run car 15+ years ago.
i can't remember if it was this run or the next one, he was sheering teeth off the spur.

 

[Warby]

Wow! 115mph! Nice!

What rig?? @Warby

Man, its been a while. More than likely it was the Limitless which I was still getting dialed in. Never got to it full potential. But I was also running the Typhon. Think I had the Typhon maxed out on its current setup.

I'll have to check the chart on my sons phone when he gets home.

Edit: think it was the Typhon as we were still testing the Limitless.

 

[Warby]

Wow! 115mph! Nice!

What rig?? @Warby

Or

 

[Chubaka]

My mini summit hit 50mph with ease in the back seat.

 

[Suburban_Hooligan]

My mini summit hit 50mph with ease in the back seat.

in that case i have an RC10T3 that's done 83mph. oddly enough that's also the speed my bug tops out at.

 

[Smilinbri]

71 with my Felony on 6s. Ran out of room. lol

70 with my Terps Typhon.

 

[sherbanater]

71mph with a 6s converted mojave 4s

 

[Warby]

Warby's top speeds

Senton 3s:
2s 20tooth pinon 39km/h (24mph)
3s 17t gear 53km/h (33mph)
3s 21t gear 65 km/h (40mph)

Bigrock 3s:
77km/h (48mph)

Kraton 6s:
52km/h GRP GT tyres,13 tooth gear (32mph)
72km/h GRP GT tyres, 21 tooth gear (44mph)
110km/h Minokawa tyres, 21 T gear (68mph)

Infraction 4x4:
4s Elevens 175km/h (108mph)

Typhon 4x4:
3s GRP tyres 88km/h (54mph)
4s GRP tyres 135km/h (84mph)
6s GRP tyres 185km/h (115mph)

WLtoys 144001:
119kmh (74mph)

Limitless 8s:
 TBA

 

[Smilinbri]

Warby's top speeds

Senton 3s:
2s 20tooth pinon 39km/h
3s 17t gear 53km/h
3s 21t gear 65 km/h

Bigrock 3s:
77km/h

Kraton 6s:
52km/h GRP GT tyres,13 tooth gear
72km/h GRP GT tyres, 21 tooth gear
110km/h Minokawa tyres, 21 tooth gear

Infraction 4x4:
4s Elevens 175km/h

Typhon 4x4:
3s GRP tyres 88km/h
4s GRP tyres 135km/h
6s GRP tyres 185km/h

WLtoys 144001:
119kmh

Limitless 8s:
 TBA

Man, it's too early in the morning to be converting that sh!t to MPH. I need more coffee.

 

[Warby]

Man, it's too early in the morning to be converting that sh!t to MPH. I need more coffee.

You don't spreken da Engrish?

 

[Warby]

Man, it's too early in the morning to be converting that sh!t to MPH. I need more coffee.

Warby's top speeds

Senton 3s:
2s 20tooth pinon 39km/h (24mph)
3s 17t gear 53km/h (33mph)
3s 21t gear 65 km/h (40mph)

Bigrock 3s:
77km/h (48mph)

Kraton 6s:
52km/h GRP GT tyres,13 tooth gear (32mph)
72km/h GRP GT tyres, 21 tooth gear (44mph)
110km/h Minokawa tyres, 21 T gear (68mph)

Infraction 4x4:
4s Elevens 175km/h (108mph)

Typhon 4x4:
3s GRP tyres 88km/h (54mph)
4s GRP tyres 135km/h (84mph)
6s GRP tyres 185km/h (115mph)

WLtoys 144001:
119kmh (74mph)

Limitless 8s:
 TBA

 

[Warby]

What does TBA convert to in MPH?

226mph.

Nah. We are/were still testing it.
We need to get back out there. Life gets busy.