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

[Mofomaxx]

Opinion please guys, im rounding up the parts i need for a Truggy conversion, undecided which truggy yet, heavily leaning towards the Xray though, anyway in the meantime im rattling together all the elecs & i'd value a bit of input from you guys......

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.....

I know conventional wisdom dictates on 4s you run the 1515 1y & on 5s you run the 1515 2.5d, but iv seen a few vids & the 2.5d on 5s seems to have LOADS of torque, iv seen this setup on youtube pulling wheelies in an LSP, so im wondering if the 1y on 5s maybe the way to go for my needs ? my basic logic (which may be wrong !) suggests that this setup will obviousluy have more top end since it's a higher KV motor but shouldn't suffer much on the low end, is that a fair assumption or is their anything im missing ?

Quick word on ESC's aswell, im looking at using the MMM, but the "MGM Compro 160 amp, 18 cell brushless car controller" also caught my eye (i want a traditional hardcased esc).... on paper they look fairly similar as far as both run 6s, BEC, general features, usb programming, etc but the MGM is £50 more, so what if any are the benefits of the MGM over the MMM ?

Cheers all

Andy

[pb4ugo]

I'd go the 2d (not 2.5) if it was me.

MGM makes some stout controllers. When it comes time for issues, however, they are known to take a while in repair. I think you'd be hard pressed to justify the cost over the MMM.

[Mofomaxx]

Thanks, so basically thats the motor between the 2.5d at 1700kv & 1y at 2200kv..... is there a problem with the 1y on 5s in a truggy ? will it not have enough bottom end ? from what iv seen the low end torque on the 2.5d & 5s is immense, i thought the 1y on 5s was maybe just too quick top end for the track ?

[pb4ugo]

I just feel 2200 is a bit much on 5s resulting in over 40k rpm. To compensate, you'd have to use a smaller pinion. With the large diameters of the Neus, that can sometimes be challenging.

I can't see any of the three being torque challenged. With gearing they will all do some serious acceleration.

[bl-is-future]

neu are rated for 60000 rpm though. I run a 1y on 5s with no problems in a flm savage. Well actually only ran it about 3 times so far but all is well so far. the 1y on 5s is only at 40700 rpm min (3.7v per cell) and 46200 rpm max(4.2v per cell). I don't think neu would rate the motor for 60000 rpm if it couldn't be ran at that.

[pb4ugo]

I don't see it as an issue of the Neus being able to handle it. As you pointed out, they can.

I see it more as an issue of being able to acheive controllable speeds through a broad range of gearing options.

[Mofomaxx]

Thanks again fellas, good info, all things being equal (5s, driving style etc) would there be any runtime advantage with any of the 3 ? 1y, 2d, 2.5d ?

[crazyjr]

Originally Posted by Mofomaxx

Opinion please guys, im rounding up the parts i need for a Truggy conversion, undecided which truggy yet, heavily leaning towards the Xray though, anyway in the meantime im rattling together all the elecs & i'd value a bit of input from you guys......

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.....

I know conventional wisdom dictates on 4s you run the 1515 1y & on 5s you run the 1515 2.5d, but iv seen a few vids & the 2.5d on 5s seems to have LOADS of torque, iv seen this setup on youtube pulling wheelies in an LSP, so im wondering if the 1y on 5s maybe the way to go for my needs ? my basic logic (which may be wrong !) suggests that this setup will obviousluy have more top end since it's a higher KV motor but shouldn't suffer much on the low end, is that a fair assumption or is their anything im missing ?

Quick word on ESC's aswell, im looking at using the MMM, but the "MGM Compro 160 amp, 18 cell brushless car controller" also caught my eye (i want a traditional hardcased esc).... on paper they look fairly similar as far as both run 6s, BEC, general features, usb programming, etc but the MGM is £50 more, so what if any are the benefits of the MGM over the MMM ?

Cheers all

Andy

I know nothing about the 1y, but the 2.5d is indescribable. The only thing i can say is you got to see one in person and drive it once, then this might be you :gasp : followed by

[dirt101]

I will be running my CRT on 5s on a tekno neu 1515 2.5d. I really didnt want anything uncontralable, and I didnt want to have to worry about heat(I guess you dont have to on a neu but I like to be safe as this is my first neu) It will be a while until I get to run my neu, as Im waiting on my MMM, but I will let you know when I get to.

[jhautz]

1Y is to much on 5s for everyday driving. It will be great idf you want to run in short bursts, stop let things cool down and then drive again. You will wind up gearing it way down to get it to run constantly without creating a heat problem in either the motor itself, ESC or batteries. With the 2.5D (what i would recomend byt the way) you will have crazy power and speed. Gearing is the key for speed. If you want more top end to play with speed runs, just gear it up. The you can go back to normal gearing for everyday running.

Originally Posted by bl-is-future

neu are rated for 60000 rpm though. I run a 1y on 5s with no problems in a flm savage. Well actually only ran it about 3 times so far but all is well so far. the 1y on 5s is only at 40700 rpm min (3.7v per cell) and 46200 rpm max(4.2v per cell). I don't think neu would rate the motor for 60000 rpm if it couldn't be ran at that.

dont be over focused on the limits of the Neu but usable power, I try not to surpass 40,000 rpms you can have too much power in an off road application resulting excessive wheel spin....try to keep your speed below 45 mph or you will just get fustrated

[jhautz]

another thing to remeber about that 60,000 rpm limit. It meant as just that. a limit. It will handle burst to that kind of rpm, but to run it there for more than a few seconds without shutting down to cool after, it would overheat in no time. Neus are high quality motors that run cooler than just about anything else out there, but they arent magic.

[Mofomaxx]

OK, fair play, i can see what your saying guys..... so 1y on 5s is just a bit OTT, soo considering this is an allround bash truggy, what im looking for is over 40 mph, lots of torque on the way to keep me entertained with wheelies etc, with the most runtime i can squeeze out of a 5s.... is it worth considering the 2d or just go with the 2.5d ?

This project is a bit of a no-holes-bared setup for me, it's pobably gonna be a well hopped up XT8 & i dont want to underpower it, its supposed to be a MAD fun truck, but i dont want the good runtimes (compared to my background in nitro) too be ruined by overheating issues......

if run time is a a factor go with the 2.5d over the others.

[TexasSP]

I want to throw a curve ball in here if I may. Why the xray for a basher, as xrays are more race bred machines. There are plenty of other options out there that would fit the bill.