Neu 1515 1y or 2.5d on 5s ? & ESC advice, pure basher.....

[Mofomaxx]

Xray for many reasons, iv owned CRT, Hyper ST & Muggy, all in their nitro form, so i dont want to repeat myself, that leaves the STR which is poorly supported in the UK (and expensive), the 8T which though i know is a top truggy i just dont think it's as robust as the Xray or the X2 CRT which isn't even out yet.....

I like Xray stuff, only owned an M18T of theirs but that was very high quality, and the XT8 has the rep' of being rock solid which is exactly what im looking for in this project..... also decided on a Truggy not MT for pure simplicity, i think most truggy drivetrains are much more suitable for BL power being designed for high power .21-.28 in race conditions.....

So, it's the 2d or 2.5d, does anyone really think there is going to be a noticable runtime difference between the two ? runtime isny KEY, unless it's a HUGE difference, but i dont want to be cutting runs short due to overheating etc is more my point.....

Cheers all,
Andy

The only thing i can tell you is that i've the 1Y on 4s li-po on my Mugen MBX5T and it's ridiculously powerfull. Smoke any nitro .28 bigblock on the track and for bashing, it's the way to go.
I realy like this motor, i've the MGM 16018 and FlightPower 5000mAh, 4s, and i'am very satisfy of my setup.

[bl-is-future]

the 1y on 5s is not even close to 60000 rpm though. Not trying to argue just trying to point out i run a 1y on 5s and i never had a problem yet. Besides i like the ridiculous power it has. Not trying to sway opinions either, you guys know more than me on this stuff and i am here to learn...If i start to have problems with my 1y on 5s should i just go down to 4s or get a 2.5d??? What would be more efficiant??? Not hijacking just trying to get more ideas out there to help me and mofomaxx

[JERRY2KONE]

Yea the Xray does not seem to mcuh for a basher type vehicle, but to each his own. As for too much power, isn't it possible to program most ESC settings in order to reduce output power? If so then why not go for the gusto in your motor purchase just in case you change gears in your project and decide to put the motor in a bigger project like an MT or similar vehicle later down the road? When purchasing a Neu motor the overall pricing is pretty similar in nature, so I would go with something that has the ability to go OTT for later urges that may need to be satisfied. Just a thought, but it makes sense to me. You can always dial it back a bit if you need to curve the wheelies.

As for the ESC from what I have seen and read on RCM teh MMM is a hit or miss at the moment. MGM may have their issues, but most of the issues seem to have been due to improper setups or installation, or just plain abuse. It seems to be a pretty tough ESC overall. TDC just put one(160/24) in his XRay-808 project and it took him a while to get it all straight, but now he is having a great time with that rig. He even picked up another MGM for his second project. As long as you have a little patients and set it up correctly it is one of the badest ESC's available to us. If you are in Europe repair times should not be quite as bad as in the USA. Once again it is all up to you which way to go for your own satisfaction level.

Good luck with that Man.

No proble with the 1Y on 5s, it
I want to swap my brushless kit in my RC8 buggy and i,ll buy a 5s to put in the buggy, and maybe a 6s

The 1Y is rated for 25 volts, so 22.2volts is not a problem.

Anyways, nobody here run WOT all pack long, you know like me when we drive our truck we drive with short burst of triger all pack long, so the 6s on the 1Y is not an issue

For sure, if i was to buy a brand new motor, i,ll maybe choose the 2.5d if i plan to run on 6s, but i,ve already the 1Y and i,ll run it on 6s[/

Hey, why they have a line on all my words on my previous post

[JERRY2KONE]

Thats weird. I thought maybe you did that to be funny or to cancel whatever you were trying to convey. Looks like somebody is messing with you.

Originally Posted by david lamontagn

Hey, why they have a line on all my words on my previous post

Yep! Maybe somebody don't like my answer

[Mofomaxx]

Right then fellas, thanks for all the input, so the 1y is defo a non starter for my application on 5s, so it's 2d or 2.5d...... 2.d will give me a little more top end, less runtime & more (potential) heating issues ? is that a fair general assumption ?

[VintageMA]

Originally Posted by Mofomaxx

This truggy is NEVER gonna race, its gonna be setup as a multi-surface extreme bash truck, fair mix of grass & parking lot running with top speed runs, donughts & general marlarkying about is the order of the day.....

Just my 2cents from a basher who has NEVER raced. It seems a lot of these 4S setups on 2050 and 2200 kv motors work very well until you try to gear for more than 40mph. Then you start to get a lot of amp draw with the higher gearing and the motor gets pretty hot.

I kinda play the way you described in the beginning and was running a 1512 2.5d (2050kv) on 4S. It was plenty powerful, but on grass the temps really started to get pretty hot ~170*. I tried to go up to 5S or 6S to lower the temps, but with the faster motor speeds it's didn't really compensate well. Even though the Neus can handle the faster RPMs I still don't like going for setups that rate over 35k rpm at a nominal 3.7v/cell.

I had a conversation with a Castle tech a few years back and in chatting with them they brought out one point which made a lot of sense - a motor will try to get up to the speed it was designed for as quickly as possible - and will draw as many Amps as necessary to do this. So if you have a 1500kv motor and a 3000kv motor, both on the same voltage, the 3000kv motor will pull about twice as much current to get up to twice as many rpms for that voltage. So for racing it may not be too much of a problem because it's more about control than always going WOT, but for bashing it's a lot of stop and go with tons of WOT acceleration from a standstill (and on grass that equals a lot of friction your going against).

^^I guess what I am trying to say is that with a motor spec'd for 40k+ rpm at whatever voltage I think your going to be wasting a lot of current just spining up the motor.

Anyway - I just picked up a tekno 1515 2.5d to run on 6S and I am getting more powerful, smoother, cooler running everything. I am getter better runtimes on a 6S 2600mAh TP packs than I ever did on a 4S 5000mAh pack. Battery temp on the 4S used to be touching ~135 and I haven't gotten the 6S pack over ~110 now.

I would recommend for the type of bashing you want to do just what the ImpaktRC guys advertise for their tekno Neu motors on the web page. 1Y for 4S, 2.5d for 5S, and 3D for 6S. Personally I say go for the 6S setup since you are going for the MMM.

[VintageMA]

Originally Posted by david lamontagn

Anyways, nobody here run WOT all pack long, you know like me when we drive our truck we drive with short burst of triger all pack long, so the 6s on the 1Y is not an issue

Apparently I must be the only one who does and low kv + HV makes for a much happier setup.

Generally I run big fields and huge parking lots and that equates to being WOT a lot of the time.

Originally Posted by VintageMA

Apparently I must be the only one who does and low kv + HV makes for a much happier setup.

Generally I run big fields and huge parking lots and that equates to being WOT a lot of the time.

I do run my rig WOT most of the time and usually not from a stopped position but I will have it rolling first this keeps the amp draw down and its a lot less wear on your drivetrain....

[Mofomaxx]

Interesting info again fellas, am away on holiday tomorrow for 2 weeks, so here's hoping mike has some 2.5d's in stock for my return, i think that's the way im going to go..... 5s/6s im still undecided but im hoping the 2.5d/MMM should handle it either way.....

Cheers,
Andy