Servo recommendations
 

Can you give me the best servo recommendations for very high speed and very high torque to run non regulated on 2s lipo for truggy.

Im looking for speed .06 and torque over 450oz.

much appreciated!

Our 35kg low profile servo can easily meet those requirements, and the 35kg low profile, and 45kg are used by a number of our clients for Truggy.

Links to the specs below. The actual performance of our servos exceed our advertised specs, our 35kg actually perform at .06 seconds at 7.4v, and produces over 35kg. Links to our Speed and Torque test results below as well.
https://amrservos.com/index.php/prod...ammable-servo/

Speed Test
https://youtu.be/tBnHaWwxr-U

Torque Test
https://youtu.be/tQYPHaBQv14?si=jOIbWmGrTNmDc-oS

low profile for 1/8th? usually thats for 10th scale

Maybe others, but not ours, we developed these for 1/8th. We designed these with a case height of about 28mm rather than a traditional 26mm case, and we use the same brushless motors as our standard size servos. They are basically a more compact version of our standard servo, hence why they are so powerful, and fast. Our 25kg, and 15kg are even faster. All our customers that use our low profile servos use them for 1/8th Truggy, and Buggy as that is what they were designed for.

Did you even watch our test results?? Our 35kg produces over 35kg at 7.4v, and has a speed of .06 seconds. Our 35kg low profile tested at 38kg which is over 500oz of torque. More than enough for any 1/8th scale application.

We even have a 45kg servo low profile which is also popular for 1/8 Truggy, and these produce well over 45kg, around 650oz of torque. Here are the test results for our 45kg low profile, and these were sent to Gary and Mike over at VRP Pistons, also known as Vision Racing Products. They use our servos in 1/8 Truggy, and Buggy.

45kg Low Profile Torque Test Results
https://www.youtube.com/watch?v=KYxvAEPmxjU

https://cimg7.ibsrv.net/gimg/www.rct...70ed014f0.jpeg
https://cimg9.ibsrv.net/gimg/www.rct...b21b8bad4.jpeg

Those AMR servos look nice, but this is the first I've heard of them. I prefer brands like Hitec, Blue Bird, and Savox. What I like about Hitec's is that if something goes wrong, you send it in and they fix it. I have all 3 brands in my larger planes, buggies, and other RC. I usually skimp on price if the servo is going into a cheapo smaller plane, but will pony up the extra price for something I care if I lose it. I put a Hitec 7955TG in my Losi 8ight 12 years ago and it still is working fine. If it ever fails, I'll send it in. I do know guys that run the 7955TG unregulated and they do fine. I don't because 8th scale doesn't need anymore torque. The newer one is the 7950TH which is $20 more and can take unregulated. Come back to this thread and let us know what you picked.

Unfortunately those 3 brands you listed have never tested at their advertised specs, when we tested them, however out of the 3 the Bluebird was simply terrible, The Bluebird averaged only half of what they advertise, supposed to produce 47kg at 7.4v, yet didn't even hit 40kg, and only averaged 25kg. Let's just say after I did my demonstration at our local track, the guys that used to recommend them, and run them didn't do so anymore. As I always say, the results speak for themselves. I always like to add, our torque tester is pretty industry standard, however if these companies have some sort of magic torque tester, and they produce the advertised torque they state, then imagine what our servos would produce on that same machine if ours are already more powerful than the brands we have tested on our equipment.

Bluebird Brushless Servo Torque Test model BLS-M45B. By the way, this servo failed in less than 2 weeks, and the one I tested was the new one they gave me only after I waited almost 2 months for a replacement from them. I literally had to jump thru hoops to get them to replace it, and had to have local guys at my track vouch that it was installed correctly, and since it was an intermittent issue I had to drive my car till it started to act up and get it on video as well which caused unnecessary damage to my car as I could not get it to act up on the bench. Even with a rubber band it would not return to neutral, so basically the car would get stuck at a certain throttle position, and my car would go running wild. Only till I caught the issue on video they would replace it, even though I had purchased it less than 2 weeks before it acting up. I have a ton more videos of various servos models, and I will post them up in our channel, as I don't want to just upload everything all at once.

https://www.youtube.com/watch?v=uQdoppOqeNU

Maybe check out Fantoms programmable servos. Their website doesn't say alot about whats programmable, but when I talked to Troy (one of the owners) they are super adjustable like an esc. You can change the curve in the servo its self, speed and other stuff. I have 2 coming for my 1/10 stuff when they are back in stock. I'm excited to try them.

Fantom 1/8 programmable servo

Looking at the popular Savox brand:
Savox - Servo - SV-1260MG - Digital - High Voltage - Coreless Motor - Metal Gear » Coreless Motor » Servos » SAVOX-SERVO.COM
But that is something you also could have found by just visiting some websites and reading the specs. I know, letting others do the job is much easier.

But really, do you need such a fast servo on a big heavy truggy? When you lower the specs on the speed to 0.1 sec at 60 degrees you will find many (affordable) options.

I've experienced a lot of failures over many popular brands and have grown to trust the following 2 servos for 1/8 truggy where neither of these have caused any failures for me over the past several years:

https://shopjtp.com/products/jtp-ct3-1-8-servo

https://dialedhobbies.com/srt-bh9027...s-servo-detail

Hitec 9381.

Watch out on the specs. The speed spec mentioned in the OP, would be a servo geared for speed. It'll slow down under load in a truggy. You want a high torque servo in truggy.

Hitec d945 would fit the OP spec well, though.

When you see absurd speed and torque specs, it's BS. Better to see what people are using, not what specs they're chasing.

A Tekin t300 would be a good choice too.

Well there you go....Fantom, JTP, SRT, and AMR....all brands mentioned in this thread around $150, all brands I am just now hearing about. MMM...I wonder what they have in common. It would not surprise me if a few of those are built at the same factory. Somehow they have figured out a magical servo recipe that has eluded the main brands who have been doing it for 50 years.

Everyone will have their own experiences and failures of various brands. And once you have a catastrophic failure that has taken out a $3000 plane, you may never buy that brand again. I've had 2 Hitec failures....they were used and not even under warranty. Sent them both in and they were repaired or replaced for free. How could I have the same confidence in Fantom, JTP, SRT, or AMR to do the same? What reason could I possibly have to spend $150 on an unknown brand? No offense to any of these brands......how could there be an offense when I had never heard of them.

Fantom and SRT are established brands. The other 2 I've not heard of until now.

Fantom is an established motor Co. Their esc is already obsolete. So they could easily drop servos in the near future.

The other niche companies come and go. I dont blame anyone for avoiding them.

Making a quality servo ain't easy. I put Hitecs in all my planes. Digital, metal gear only.

Literally all their stuff is new, the oldest thing they have now is their stock motor. As I said I talked to Troy a few weeks ago at the track for quite a while. I brought up their old esc's and he started talking about all the R&D they did on them and the servos. Which is why I ended up ordering their stuff.

No offense at all. I will simply state this. Many of the brands mentioned here didn't meet the advertised specs when I tested them. Not only do ours meet our advertised specs, but exceed them. Sure they might be around longer than us, but are they delivering what is advertised? I let the data do the talking , and we will continue to test various brands and upload them to our channel. I spent thousands of dollars buying different high-end and low end models and will post the results gradually so we have new content. It doesn't make sense to post all of them at once. I can atleast do business with the peace of mind I am delivery exactly what clients are paying for and I test our servos frequently. I even post the results of those test on our channel. Good luck with whatever you decide.