TESTING the TOP SPEED of “The CHEAPEST Traxxas Slash” RUNNING a HUGE 31t..It DIDN’T Go To PLAN!!! 😕

In this video I test the top speed of my Traxxas Slash 2wd xl-5 that I dubbed “The Cheapest Traxxas Slash”. This machine is now running a 31t pinion. This Slash is now geared much higher than Traxxas recommends. I actually had to do some cutting to make this much larger pinion gear work. This video didn’t go quite to plan but make sure to check out the video and see for yourself how fast of a top speed we were able to record.

[@noneya7937]

There is lipo and neckle metal mode on the ESC read the manual tells you how it works.

[@gourobkundu2173]

Bro, the current drawn will be off the charts. Look when you cycle in a really high gear, you cannot accelerate fast enough. Even after reaching a point cannot increase your speed. This is exactly what happens with the slash. After a point, the motor paired with the super high gear cannot provide the necessary torque to propel it to higher speeds. Also there may be a overstrain protection in the b esc. Go brushless. BTW loving your content, From India. Also , forgot to mention, those connector adapters are just a makeshift thing. They increase the overall resistance and cause lower top speeds and that limping at full throttle.

[@RCKnockout]

Thank you! You’re definitely right about that Bro! Lol 😂

[@dstjamesrc6395]

This is all just a matter of a pinion. 😎

[@RCKnockout]

Lol true 😂

[@NathanStorer-RC]

I'd say it's a safety mode. With the bigger gear on, it's going to try to draw more current from the battery. Traxxas' batteries generally only have a 30c discharge rate, and you have a 60c discharge rate, so your potential current is higher. You probably need to either find lighter tires, or go to a brushless setup and a slightly smaller gear.

[@RCKnockout]

You are absolutely correct! It was going into some sort of limp mode probably caused by the current draw that the esc was demanding

[@RCKnockout]

@Jacques Lee yeah I’ve been told to take it out of lipo mode. I’m not running this system anymore though so I think I’m good thanks 😊

[@RCKnockout]

@Jacques Lee that is true it might stay on the ground a bit better. I would be a bit worried about frying my esc or motor though lol 😂

[@RCKnockout]

@Jacques Lee we will see. Maybe I’ll try that at some point

[@marcuskingtreerckingtreerc5868]

The motor will be the first to go bad but I like the videos very good information

[@RCKnockout]

Thanks man 😉

[@captainflannel8558]

i had issues with adpters before like that sometimes it just does get the voltage or something try sodering the same plug on the battery as the esc

[@RCKnockout]

I suck at soldering lol. I would probably just go buy some batteries with the trx plug

[@TC_Vlogs1]

The slipper clutch needs to be tightened

[@mattfoster1684]

All traxxas ESCs have that Lipo Safe thing. Read the instructions to turn that feature off. When LSM is off the light on the ESC is solid red, not green. The threshold is quite low for that low voltage protection, especially with 2S. I run mine without that protection and just pay close attention to power loss so I don't kill my batteries.

[@RCKnockout]

Yeah I know how to change it. You think I should try running it without lipo cutoff on? But still using the lipo battery?

[@mattfoster1684]

@@RCKnockout Yup. That's how I run mine. Before I did the VXL upgrade and ran 2S I had the same problem with early cutoffs.

[@mattfoster1684]

With that gearing your launch is pulling a big load that immediately drops the potential voltage below the threshold. You're getting faster top speed than my brushless one with stock gearing, but I think you're torturing that little Titan motor. Possibly that's the intention?

[@RCKnockout]

@@mattfoster1684 so basically you just have to be more cautious about what your battery voltage level is. Not to let it go to low

[@RCKnockout]

@@mattfoster1684 I don’t mind torturing it lol. Wait..so your VXL-3S doesn’t go over 33mph with stock gearing?

[@ELITEWELDER1]

Cancelled the order for the 35t and got a 28t and the mod one gears well see if xl5 will make it move ?

[@RCKnockout]

That’s a better bet…it still might struggle with that high of gearing though

[@SebastianLong]

My guess would be the adapter isn't allowing the necessary current through and the ESC thinks the battery is at low voltage. Also I must ask, why didn't you try a 3s?

[@RCKnockout]

It’s not a 3S capable esc. It says it can only go 2s

[@rc123channel7]

It will blow up the ESC

[@8balltheletter]

3 modes on the esc , looks like you got in training mode

[@RCKnockout]

I don’t think I was in training mode

[@diyguygarage]

I bashed the stampede with a 21 was fun but got hot.

[@RCKnockout]

Yeah 31 was way too much…cooked the motor lol 😂

[@diyguygarage]

@@RCKnockout yea i wonder if you could tune the gearing similar to stunt bikes and control the wheelies more.

[@RCKnockout]

@@diyguygarage oh I’m sure that definitely could be done

[@mikebianco7854]

Try the 23/76 gearing it works good in stamped 37 mph 60c Lipo

[@RCKnockout]

Thanks for the tip! I don’t run this system anymore though

[@victorvega1917]

If you had to cut down if the transmission in order to fit the pinion, that means the spur is too big. Big pinion + small spur = fast.

[@RCKnockout]

Yes it’s over geared quite a bit higher than Traxxas recommends

[@victorvega1917]

@@RCKnockout yeah, plus with that stock motor and esc set up its going to get real hot. Cool videos btw. My esc just blew up so I'm just stuck watching videos

[@RCKnockout]

@@victorvega1917 I appreciate it man! You’ll have yours back up and running in no time! 👍😉

[@bryanglover3775]

As a rule of thumb it's 1 to 4 pinion to spur gear to split if you give him a 23 and say a 54 is about the same gear ratio and it won't eat the battery up as fast

[@jasonmorgan661]

Now get the rpm gear box with heat sink for longer run times. Its only like 20 bucks and the gear tollerance is way better then stock.

[@RCKnockout]

I’ve never heard of an RPM gearbox upgrade? I haven’t had any issues with the stock gearbox though

[@jasonmorgan661]

@@RCKnockout its made from nylon and the motor will have a large aluminum plate it mounts to to keep the motor cool and run longer. The pvc stock gear box insulates the heat and has no where to go leaving you 20 min of run time at the most.

[@RCKnockout]

@@jasonmorgan661 I didn’t know that. Thanks for the info! 😉

[@jasonmorgan661]

@@RCKnockout rip Race In Peace😎

[@RCKnockout]

@@jasonmorgan661 right back at u man! 😉

[@gavinm3474]

you need a smaller spur gear because the bigger you pinion the smaller you spur need to be but with a bigger spur with a bigger pinion wont do much.

[@litrc7194]

Make it brushless now!! It has plenty of upgrades!! It would be epic!! The brushed systems suck anyways!!

[@cbossplayz3555]

brushed systems are not for speed they are more for beginners

[@litrc7194]

@@cbossplayz3555 yeah but he not a beginner! Your point?

[@cbossplayz3555]

@@litrc7194 they dont suck it is for beginners not for people with that much experience it is more for kids because for kids brushless is too powefull unless they are 14 or older

[@litrc7194]

@@cbossplayz3555 I did not say anything about beginners, you just randomly said that??

[@primaryenginesinc]

Need more lash, assembly lube, and break in.

[@RCKnockout]

Thanks for the tip! Everything on the truck has been modified since the release of this video though 👍😉

[@jeffkarr3936]

Go to your LHS, and trade that xl5 in for an xl5-3s.. I think it’s like a $20 “upgrade” with trade in.

[@jeffkarr3936]

It’s called the “XL5-HV 3s”. I’m not sure the exact price; but another KZbinr said it was like a $20-25 upgrade with the traxxas trade in program

[@RCKnockout]

@@jeffkarr3936 I’d go brushless before I’d spend my money on an upgraded brushed system. Thanks for the info though! 😉

[@jeffkarr3936]

No problem; I’m honestly just curious what it’d do; and $20 isn’t bad. If I woulda known about it before I bought my vxl I would have tried it and bought a second motor and just swapped out motors when they blow and keep them in rotation warrantying them. 😂 I should try a 31 pinion with my VXL. I’m loving 30/83 rn.

[@jeffkarr3936]

If you do go brushless; I would go with the castle sidewinder 4 setup. I let my lhs talk me into the vxl and Im happy with it but it leaves some things to be desired on the tuning end that castle offers.

[@RCKnockout]

@@jeffkarr3936 thanks for the recommendation!👍😉

[@fuzion1094]

Try turning off low voltage cutoff. If doesn't go into limp mode then it's the battery or the connectors.

[@cbossplayz3555]

it would not do anything if it is the battery connecters because it is not changing anything

[@fuzion1094]

@@cbossplayz3555 if the battery or connector is bad, they would give a low voltage, without LVC it would not go into limp mode because of low voltage, which proves the issue is with the battery or connector and not the esc/motor.

[@cbossplayz3555]

Oh I get it now sorry for the inconvenience

[@douglassong6816]

I got 45 mph on stock motor but used a hobby wing esc with 3s

[@RCKnockout]

That’s not bad speed at all for a stock motor

[@jaredharris1970]

Could it be a bad esc ? Try resetting it and reprogram the mode

[@RCKnockout]

I don’t run this esc anymore

[@johngantner9314]

i wonder how a hobbywing max 10 would do with a 3500 brushless set up would do?

[@skeezixmccat]

I tried the base max 10 in my 4x4 Slash after an accident destroyed my max 10 sct, and even after regearing it a little more aggressively it still just didn't have a whole lot of wow factor to it anymore. But I'm also using 3660 motors which might be expecting more current? Idk

[@johngantner9314]

thanks bob. i think the max 8 would work better. im really liking power esc an motor in the Maxx. its so quiet

[@marleybrown4554]

I have a 3300 2s with 30t and 83t and I get 39mph

[@AidenK4]

The box where the antenna is on my slash, the light blinks red, what does that mean?

[@RCKnockout]

Do you still have control of your steering and throttle?

[@AidenK4]

@@RCKnockout yes

[@RCKnockout]

@@AidenK4 you could try rebinding the transmitter and receiver

[@rc123channel7]

What battery are you running

[@rc123channel7]

And do you have brushless

[@berisade1]

You should make it brushless, I bought goolrc brushless system for 35 bucks and it insane

[@cbossplayz3555]

How fast it go

[@berisade1]

@@cbossplayz3555 on 2s 43 mph, on 3s 50 mph I did it with a traxxas stampede 2wd

[@cbossplayz3555]

I never whent with that brand before I usaluy use castle which is more expensive I have castle in my slash it goes about 70 mph on 3s

[@berisade1]

@@cbossplayz3555 cool! For the price this combo is really good

[@cbossplayz3555]

Very good

[@hasnaraahmed7853]

Can you do a rc begginers video and do a video about the speed of the battery's

[@RCKnockout]

Not sure what you mean by that?

[@richard8529]

I have a blx 100 brushless system 3200kv in my 2wd slash it's fast on my 2s

[@RCKnockout]

Nice!

[@edp9517]

Can you install TSM on a 2WD?

[@RCKnockout]

Yeah you can….just have to swap the transmitter and receiver…..cost $50-70 depending on if you find a deal….the VXL 2wd Slash model has Tsm from factory though

[@AVERAGEJOERC]

What gps are u using?

[@RCKnockout]

I believe it’s called a Melian or something like that

[@christiansrcs7789]

Yeaaaaaaaaaaaaaaa

[@j-fee-ree]

You should have got a smaller spur gear too

[@RCKnockout]

It was geared pretty high with the 31t pinion not sure if it would have handled a smaller spur gear too? Lol 😂

[@scottg406]

your in the wrong mode for a lipo battery. should be green solid light. Look at your Man about lipo settings :) gl

[@RCKnockout]

Nope I believe it was in lipo mode the entire video.........thanks though 😉

[@cbossplayz3555]

it could be trying to put out enough and it is just over volting the esc or it could just have too much torq in the gears and just so you know brushed systems can not take that much torq i would try brushless because it can take more torq in it i would try a castle sw4 they can take that much torq

[@fuzion1094]

More load means lower voltage at the battery terminal due to internal resistance of the battery/wires/connectors. It would not 'overvolt' the esc. If anything esc can overheat due to over current, but he said the esc is cool to the touch.

[@cbossplayz3555]

It also could have too much torq

[@cbossplayz3555]

Brushed can’t take that much torq as I said

[@fuzion1094]

@@cbossplayz3555 brushed systems have "less" torque. If it's over geared it won't go faster because the motor doesn't have enough torque. But it would not cause the esc to go into limp mode and blink. It could overheat and go into thermal shutdown, but the esc is cool.

[@cbossplayz3555]

As I said it is too much torque is making the brushed stressed out and that is why the gearing is too much torque for the brushed

[@Thatklx250s]

lipo cutoff and over heating

[@dashhazelett2404]

To much gear, not enough motor. Nice catch running lite throttle to not set off the load alarm. Time for a change...

[@RCKnockout]

For sure. Its brushless now! Lol 😂

[@tysemilicia3931]

The motor doesn’t have enough torque to move it on the ground, u will have to gear down or have higher voltage

[@RCKnockout]

Yep

[@cbossplayz3555]

Try a smaller spur you need a 76 spur for your setup

[@RCKnockout]

Thanks! I’ll have to look into it

[@cbossplayz3555]

The bigger the pinion the smaller the spur is what you need I would not bash it like that though

[@RCKnockout]

@@cbossplayz3555 you’re probably right lol 😂

[@cuongandmari]

You should go down on spur and up teeth on pinion gear = faster. Instead, you up teeth on both spur and pinion gears therefore it defeated the purpose?

[@RCKnockout]

I just looked at the video myself. Cause what you said made no sense. I said in the video that I was running a 31t pinion and 86t spur gear. That means I went down on teeth with my spur gear. Stock was a 90t. Not sure where you got that from?

[@cuongandmari]

@@RCKnockout , sorry I missed that. My slash 4x4 stock spur is 54 teeth so I was assumed. I guess you have been playing around with the spur gear before this video. Thanks 😊

[@RCKnockout]

@@cuongandmari yeah stock on a 2wd is 90t spur. Completely different gear ratio from the 4x4 models. Different gear pitch too

[@johnramirez5996]

I'm running 37p and 76 spur. on 12t. Been cold out. Gonna try when it gets little warmer.

[@MrBigshow101171]

Yeah, need to lower spur gear

[@TiLaDn]

Make sure your using lipo

[@RCKnockout]

Yeah

[@mendez1261]

Go brushless ,are making this budget build?

[@RCKnockout]

It’s kind of a budget build lol 😂

[@ritocasarez1683]

Need copperhead

[@RCKnockout]

I’ve got the Vxl3s in this now….which is working pretty well for this setup

[@faerysb2305]

What job do you have because all of your rcs have to be tons of money

[@RCKnockout]

I’m a pilot car driver

[@faerysb2305]

@@RCKnockout what is that if I may ask

[@jeffbryner5355]

That's shitty ass Traxxas electronics for ya lol. I'm running 90 27 with my sw4 on a 5700. Runs fine lol.

[@RCKnockout]

I’m not sure that the stock electronics were meant to handle such high gearing though

[@jeffbryner5355]

@@RCKnockout yeah im sure but I have never had any other brand do something like that I have smoked several xl5 systems. My buddys vxl esc didn't even make it through a 4min race without over heating on 2s. We see it happen all the time. Traxxas electronics are garbage

[@RCKnockout]

@@jeffbryner5355 I have vxl3s escs in three of my vehicles. Two of which I’ve had for over 5 years. None of them have broken. Sometimes when it does get really hot it does overheat and goes into limp mode though. Did your friend run a fan on his?

[@jeffbryner5355]

@@RCKnockout yes it has a protek fan on it amd it did go into limp.mode twice in one night. Traxxas stuff is not intended for that kind of abuse of racing and high gearing. There more like a Walmart rc but u can upgrade the broken parts. I have 2 slashes and a 4x4 rustler so I have experience lol. I race with team associated

[@RCKnockout]

@@jeffbryner5355 I gotcha. I don’t do racing. High gearing will definitely send the thing into limp mode. I think Traxxas is far superior to Walmart rc cars though lol

[@diyguygarage]

Where the heck did you find a 31t

[@RCKnockout]

I think I got it on Ebay

[@diyguygarage]

@@RCKnockout did you ever break 40 on the stock motor?

[@RCKnockout]

@@diyguygarage no I don’t think so…..but I can’t remember tbh

[@ELITEWELDER1]

Just bought a 35t well see what it does/update nevermind.

[@RCKnockout]

Hopefully you’ve got an upgraded power system otherwise it’s gonna go into limp mode with the stock brushed system

[@ELITEWELDER1]

@@RCKnockout think stock xl5 system will move it with the mod one gears?

[@RCKnockout]

@@ELITEWELDER1 you run mod 1 gears on a 2wd Slash?

[@ELITEWELDER1]

@@RCKnockout rustler

[@RCKnockout]

@@ELITEWELDER1 gotcha…I have never run mod 1 gears on a 1/10 2wd, so I’m not sure if the system will be able to deal with it…..probably not with that high of gearing…a 28t mod 1 is way bigger than a 48p 28t pinion…what size spur are you running?

[@killa_content9846]

Loosen the slipper clutch a bit

[@RCKnockout]

For what reason?

[@killa_content9846]

@@RCKnockout it might help from what I’ve seen. But definitely don’t tighten it, trust me because now I had to order a slipper clutch eliminator.

[@RCKnockout]

@@killa_content9846 thanks for the tip! I haven’t had any issues or breakages from my drivetrain yet though

[@killa_content9846]

@@RCKnockout no worries. The slipper clutch allows the spur gear to slip a bit when launching, if you have too much load on the motor try to loosen it so it slips more

[@RCKnockout]

@@killa_content9846 oh I get what you mean now! Thanks! 😉

[@huesos7953]

Why dont you try 3s lipo?

[@cbossplayz3555]

That esc can not take 3s also the motor will burn up

[@huesos7953]

@@cbossplayz3555 well i see people run 3s and it runs fine

[@SebastianLong]

@@cbossplayz3555 The XL-5 ESC is 100% rated to run 3s.

[@cbossplayz3555]

Put this in google can you put a 3s lipo in a traxxas xl5

[@cbossplayz3555]

Just so you know there’s 2 models of the xl5 one is 3s and one is not the stock slash dose not come with the 3s

[@johngantner9314]

Nice try. Back to the drawing board

[@dianetmotors]

First

[@dianetmotors]

No wait nvm

[@aaronvennie2132]

Your over geared