Everything You Need Is Here.. www.perfectpassrc.com/

I like the STOP READ part!!! I do it and almost every video I watch people who do speed runs, drag runs, etc say it as well!!! Another awesome video Raz!!!! Happy RC’ing Y’all!!!!

I don’t even do speed runs, not even sure I like it at all, but I love Raz’s personality, and I can respect a well tuned machine

I have run a number of XLX2's with LMT motors in SAW boats and out of any ESC, the XLX2 has been bulletproof. No problems running over 500A for several seconds. The big difference between boats and cars is the braking difference. Sounds like the ESC's cannot regen that huge amount of energy when you are trying to stop from 180+mph. I have also tested the MGM's including the 80063 and don't think this will fair any better than the Castle will. Along with others advice it sounds like it is time to add mechanical or aero brakes of some type. BTW, The ironless Lehner design's have very little torque ripple compared to the 4-pole TP and Castle motor designs. The 2-pole design also produces a very smooth Sinus waveform so compared to most other motor topologies these are very easy to drive from an ESC perspective. In SAW boat records, Lehner's hold all the top spots from single 1545's to twin 3080's. They are beasts when you have an ESC and lipo that can support their appetite for power. Don't give up on the XLX2 and 3060 combo yet.

Raz is back, constantly, missed your videos for sure! We all have bad days and not every is tested to work together. I don’t know enough about the systems to figure it out but I would say your thinking down the right path. Obviously they motor and esc don’t like a spike in something. 😞 like you said you can’t fault either manufacturer it is what it is. One of those sucky expensive lessons. Keep it up, your videos keep me entertained and I learn something new each time I watch them.

It was a bad day at the zoo for sure. It wasn't a failure, it was an expensive day of learning what doesn't work. To paraphrase Edison, I haven't failed, I just learned 700 ways how not to succeed. You recently hit 204 MPH for Gods sake! That speed was unheard of until very recent months. You've got this buddy!

For braking, try using a servo and a plate to use it like a Fred flint stone brake, possibly with titanium pads to replace every run

The mgm x2 series is proven. Working with the x3 and so far no flames and over1000 phase amps, but around 900 amps it starts to limit phase power. Around 1100 amps is where the x3 fully cuts. It’s more about tuning the esc so it reaches max output @ max rpms. Kinda has a perfect pass built in. Take a lot of parking lot time to understand it first before heading to the runway. Also the 3080/4 is a beast vs the 3060, but powering them in a space limited situation….might need James Mckoy and Kevin’s stretch chassis and the mgm 1000 amp esc

I like the stop, read..nothing bad about that :)

Looks like Raz is going mechanical brakes! Can't wait to see what he comes up with

I've heard nothing but good things about Castle Cremations. 😉

What does it matter if u say stop and read every time or no time? Whoever is so petty and just hates need to find something they can watch that's perfect in every aspect for them. And good luck on finding something that is perfect in every way to anyone or everyone. Cool video by the way. Keep them coming

Ouch! Sorry to see that happen Raz. Now, using my extensive knowledge of engineering and physics, I can confidently say that the amount of energy generated while stopping the car is.....some Joules....

Great to see the lmt being used for straight line speed runs, love them motors

You know it’s a good day when it’s Friday and Raz uploads a video.

Enjoyed the analysis at the end sounds like you nailed it

After my experience of melting all the solder off the board of my XLX2 just bashing in a K8, I would never even think that the XLX2 would handle that motor. I wouldn’t even think of running that combo. If I were using that motor, I would only use the MGM ESC’s.

Yes Ouch! Sorry the ESC's went on you but how insane are the LMT motors being cold!!! Could be a record breaker once a more suitable ESC gets installed. I hope Castle help out with those failures as they aren't cheap at all. Don't feel bad about the "Stop...Read" I do it too...all part of the excitement mate.

Raz, my friend. This is back voltage. The motor tries to send voltage back into the esc it's more than the esc can handle. If you don't hit the breaks and went mechanical you won't have a problem.

All good home slice 👍 I'm putting in a parts order this weekend and it will enough to cover a Pinon gear or 2 😁 I got you covered 👍✌️

Man I'm a bit old skool and came up in the days of nicd packs and mod brushed motors, I was pumped to get my XTM stadium truck up to 40-45 with a speed gem 12 turn brushed motor and 1,500 nicd pack🤣 we got it easy today boys compared to 17 years ago 😁

Could you run a setup with mechanical brakes? Sounds like you've pushed the limit to where it's actually necessary. Either that, or a parachute... Keep it up man! I love what you're doing, and can't wait to see what you do next. Stop, read...lol

very nice run, thanks for sharing and sorry for the ESCs.

Cant wait to see the dual 2028 1700's currently running one in my Limitless V2, plan to eventually get a GT body and run dual! Sorry to see everything letting out the magic smoke :(

Interesting video Raz!! Sucks about the xlx2 burning out.

I love the stop read…mainly cause you don’t have to hit stop lol I love it

Also man that is fn nuts haha I applaud your ability to keep in on the ground let alone straight!!

You could just try limit the braking with the castle software. If you think about it, you are trying to stop the car in a lot less distance than you are accelerating it, creating a lot more load under brakes than under power so it makes sense the motor is trying to feed more amps back into the esc under braking than the esc is giving to the motor to accelerate it.

Sorry you had a expensive day. Love all your videos. I've learned a lot from you!!! Thank you for sharing...

Love the video. RC cars and real cars all in one video!

Excited for the new products! Cant wait, great video as always, cheers!

Oh hell yeah! Been waiting on those springs!!

STOP, READ, don't ever change Raz!

You are speed RC Einstein man! Keep it up. Regards from Belgium

Springs !!! Sweet !

Love your vids kinda new to speed game but been in rc for years building a speed car right now 👍🏻

you should try to put a capacitor ramp of at least 20,000uf or even a little more! when you activate the braking you have a return of energy and there the ESC 🔥

Great Video as always, with great info! By any chance, do you think there are any similarities between this motor esc combo and the dual 1721 setup issue, very intrigued also on the learning aspect of the issue🤔 thanks again Raz! And it’s -STOP …. READ! 4-LIFE!😂👊👊Buddy! Great runs! Spring’s soon! YES!

Amazing and informative video. Raz it's time for you to get into the high speed wheel and tire market!!!!!

ran try using the arrma fire team hand brake system in your car, It will be out of the way light, and solve your braking problem.

is there no way to put a tracking system on teh cars so you can mark a spot at the end of the runway and the system in the car will aim for the spot constantly so you dont need any steering input as the car would auto align ?

How would the speed run springs work on a Typhon. I’m using limitless shocks so they would def fit I just don’t know how they will work in the Typhon being a complete different car than a limitless or something

What about a nice parachute brake setup? ❤

There a phrase crawler community, play brake repeat, that what I see in this video, and for me Raz you're always a inspiring person, just keep going with your forehead high

Great video dude. Looking forward to the PP springs. But. You really want to look into doing your own Perfect Pass foams. Your products are easy to get. Foams from other companies are extremely hard to come by. Just a thought.

I know it would probably involve more on the car than desired, as well as weight. And I don't know how well it would slow a car going 180mph down , buuut what about incorporating a physical handbrake. Aborting all use of the esc braking and using a perfect pass servo with a fancy lil arrma handbrake.

Do what drag racers do, get a parachute.

Days like this suck but it’s definitely just part of the hobby. As a basher I’ve fully switched to Hobbywing for ESCs because they have a no questions asked RMA

Well I suppose you could install a mechanical break directly on the motor pinion gear,and only have the esc brake set to like 30%. The mecanical brake does the rest.

I love the thought you put in. I reload. Build engines race engines. And RC is how I teach my kids gearing. Volts vs amp vs rotating mass. Love the way you do it. We sit waiting on you to think 🤔. 😂

Love to see you test the MGM X3! That Lehner looks fancy and with that internal fan spinning at those speeds taking away the heat directly from its source it should break single motor records! What about dialing down brake force in the esc?

I’m also going to build a twin 2028 infraction, but it seems like your gonna get to it before me, but it I guess I’ll be able to see how it would act and how to plan mine out 😅

Hi Raz love the show I see you having problem with brakes. Esc burning out have you ever thought about doing? What real cars do and it is running a parachute? This is a small one in case of emergency. Especially when you lose control of the car the chute will slow it down and straightened it out.

What about a infraction brake and maybe take some load of the motor when braking. I’m not sure if would work, just an idea

Maybe current is bifurcated in two windings and excessive current only going to one phase in the line it's possible the DC injection under lenz law is to great hence only one phase gets toasted 🤔. Could also be CEMF I would test braking current in a lower load scenario to see what the load is on the esc logs

Raz I’m running an xlx2 and castle 1721 on my limitless v2 on 8S. I’m trying to reach 150mph what gearing should I start off with? Thanks

Wow, cool and informative and fun video Raz!!!

Better the ESC and not an uncontrollable Lipo fire😂. Wish you luck on the next runs though!

Raz, you have to keep saying "stop, "read"... It's a tradition! :)

In my 140mph run, with xlx2 and 1721 2400kv, the car behaved somewhat similarly! Did the run, stopped the car a d the car we t dead! Took it back, waited a bit, then powered it on! It started, but the moment I pushed the trigger, the esc caught fire!

add a braking module on the centre driveline and disable braking on the esc though at those speeds the disk may need some reinforcement

Why not keep using the xlx2 and use mechanical brakes? Like off the infraction or the diff brakes off the fireteam? Relive some load off the esc.

sounds like that motors requires more power than the esc can handle. has the ESC working too hard by allowing too much of a current to flow through. larger internal resistors and capacitors.

Great video! 👍

tbh I'm amazed you haven't been using parachutes already, can also reduce damage if a back-flip occurs

That’s a 2pole motor right? If so that could be the reason. Like you said too much ripple. Maybe try a cap pack I dunno.

maybe it needs stronger bullets. im sure ur right about the ripple, but it could be the bullets not being able to handle it anymore

You can convert the 6 outputs to 3 outputs like you did on the 3060, but when braking the ESC on an RC car shortcuts the outputs to create resistance and a braking force... I think this is called "plugging", I'm not an electrical engineer, but maybe thats where it goes wrong...

That's like stopping the US enterprise starship from traveling light speed down to 0. So if you try to stop at light speed you will rip yourself apart. 1st. You have to slow down to warp speed then hit the brakes..Sorry that you're having problems I do enjoy your videos. Just thought I'd throw in a little funny humor.

You mentioned the fact that some other vehicles have disk breaks. Any plans on adding disk breaks to your rigs to lessen the draw on the esc to stop them?

Mechanical breaks and parachute it is!!💸💸💸😜

When you absolutely positively want your car to catch on fire, use an XL2.

Raz you need to look into using express lrs or tbs crossfire on your cars u can use them with your futaba radio these radio link have gone miles out with no problem or latency

Raz what switch plate is that? That looks great for wire management. I recently reached out to pps to ask them if they could make one like that but have not heard nothing from them. Thank you.

Why do some brushless motors have 6 wires? Is it for sensoring or something?

PARACHUTE like a real drag car would

Thanks once again for your awesome content Raz. Pardon my ignorance (I'm not an RC car guy) but what is that rattling noise when the cars are rocked back and forth - is it some sort of dis-engaged gear or something?

Could you possibly install the mechanical brake module from some of the arrma 6s cars and just disable the motor braking all together

do you dyno the motors?

If you can find a set of wheels with a bigger diameter you might get faster speeds. Do you balance the wheels? That might be a stupid question lol

Keep up, sorry for burning up 3 xlx2, nice vid anyways!! Btw pls RAZ never ever change Its runway, perfect pass, return and then "stop, read" !!!! Cheers buddy

Great information razz . good content thumbs up

So I would say to test that theory use another xlx2 u got the runway it’s a big enough space see how fast you could get up too and don’t use the break let it gradually slow down there for when it stops and if it still works that there is proven but if it stops working n didn’t use the break and something else is wrong and by the way since both perfect past driveshafts are not in stock and you said you’re working on something it kind of sounded to me it may be different I don’t know I’m just assuming however will the old ones ever be back in stock 😂

Dam 😮 expensive few runs that . Most unfortunate raz. A lot of forces at work during braking. Hopefully can sort the issue and see great things from that motor. Maybe some rotors rather than motor braking.

Your videos are awesome,can you use a hand brake to slow the vehicle. Good luck with the speed runs.

I had a similar issue with a Lehner motor (2250 1100 KV), in a Kyosho Twin force (electric solid axle MT) converted to a center diff, the esc I used was a MGM 16026 esc. I had made some speed run type passes and it suddenly stopped working, I never got a good answer from MGM and shipping it for a replacement was high (US to Germany) so i just chalked it up to live and learn. Mind you this was in like 2005/2006 when I did this, but just letting you know I had the same issue with an MGM esc. What I think happened? Admittedly I didn't think of this then, we never bothered with ripple or anything like that back then, but seeing your issue made me think about it. The caps were not big enough to absorb the ripple. If Lehner is still doing 2 poles motors I think that long hit (full half turn of the rotor) is causing massive ripples where the 4/6 poles are making smaller faster ripples and more easily managed, the big ripple can't be so easily handled. If there was a bigger cap bank it might help mitigate. When you get the MGM esc try the 4/6 poles first and see what happens, you know they work with the castle esc, so they should work with the MGM just as well. I think it's the motor 2 pole causing massive ripples

hey why you never try something hobbywing max 4 ? is it too big? something else? genuinely curious.. great video as always and so sorry about the ESCs..

I've been watching a lot of your videos. I bought a vendetta on sale to try speed running out. Hoping to get it to 100mph. As my skill grows I might try a serious build like you.

What’s the deal with the chassis and shafts? They don’t look like a normal arrma chassis and shafts. My scorched chassis never looked like that.

How many poles are those motors running?

💪💪💪

Maybe put a big low esr capacitor on it so if you brake on the motor you don’t have allot off “noice” in the system 🤷🏼‍♂️ it works on race drones so the voltage spikes won’t get out off control i don’t know if it’s the same in rc cars 🤷🏼‍♂️

did you just use loads of shutter stock clips ?

GEEEZUZ !! @0:59

Maybe a center section from a nitro buggy with the brake setup?

I find if you change the battery harder they give you more power at the start

“No breaks again” famous last words buddy

Any idea when the monster servo will be available?? Thank you for all your knowledge and entertaining content.

that motor/esc combo asks for a chute in the back of the car :D

Would you consider using a mechanical brake just to be able to use that motor with the xlx2?