Which Neu motor with 5S and Quark 125

[ssspconcepts]

Originally Posted by neweuser

I can run 5s with no issues, but it gets a tad warm compared to the 4s. And the Quark is rated for 6s, but cannot do it well. 5s is about the most you want to go on the quark. If I hada motor with a lower kv, it would be even better, my current kv is 2200...which is the reason why it runs warmer than my likings.

Thanks. Just curious...what are your runtimes on 4S and what is your approximate top speed?

[neweuser]

Originally Posted by ssspconcepts

Thanks. Just curious...what are your runtimes on 4S and what is your approximate top speed?

On 4s, about 25 min maybe more, top speed most likely 30's, not quite sure. 5s, I get about a half hour, top speed a little more maybe like upper 30's.

[neweuser]

Mine would bolt up as well, checked it last night and seems to line up fine.

[ssspconcepts]

Originally Posted by neweuser

Mine would bolt up as well, checked it last night and seems to line up fine.

Thanks for checking for me.

[Patrick]

If your using a small spur/pinino combo (like 51/13 for example) the finned can version will hit the transmission (I'm not sure about the smooth can, it's smaller than the finned, but bigger than fiegao's ect). With the strobe 51t spur I THINK 18t is the smallest pinion that will fit without grinding the fins.
Mine will fit with 51/20 (mod1), with about 1mm space left to the transmission and about 1mm of adjustment slot left in the motor mount before I would have to start grinding it, so the 18t MIGHT fit (it would be a very tight fit), but I don't have one to check.
Since you are using the 32p gears I'm not sure what will fit excactly. If your using the 72t spur it will fit (depending on pinion), but like we were talking about in your other thread you'd need a HUGE pinion (like mid 30's-40t) to get decent speed (I don't think the stock motor plate would fit that combo though, even if you moddified it)
So if your using the Pro diffs (truggy/ 4.3:1) and your going to use 32p gears you'll probably need something like 66/32t to get ~35mph. The big pinion should make up for the small spur gear, but I'm not sure if it will fit I don't have pinions that big to check. You may still have to extend the slot.
You might just have to wait till you get it and see if it will fit, or how far of it is, then do some guestamating (yes that's a word :027: ) and trial and error.
How much of the stuff on your list do you have.
If you go with a strobe and ofna 51t, I don't think you could go much bigger than 20t without making the motor plate slot bigger, but that shouldn't be much of a problem.

[GorillaMaxx360]

is 20t pinion to much for the 2200kv neu to handle. will this create heating issues. What about acceleration.

[Patrick]

Originally Posted by GorillaMaxx360

is 20t pinion to much for the 2200kv neu to handle. will this create heating issues. What about acceleration.

I'm not sure, it would be too big for most tracks, but should be ok for a few speed runs. If your using buggy diffs it wouldn't be too bad, around 40mph on 4s, so it should accelerate ok. But it depends what voltage your using, what diffs, how heavy the car is and how your going to be driving it.

The motor I put the 20t pinion is the 1515 2.5D (1700kv), so a big pinion isn't as bad for it as the 2200kv. Today was the first time I used it, and I ran it on 14 cells nimh. I seemed pretty quick, but it was hard to tell exactly how good acceleration is, because it had been raining so it just spun the wheels.
I was driving it for a while (I was supprised how long it ran for), but it wasn't consistant hard driving, so I couldn't get a good idea of what temps will be like, though the quark and neu didn't go much above ambient temp.

I don't intend to run it like this though. I bought it to put in a 1/8th truggy and to run on 5s, but I haven't received the batteries yet and the mount and trays aren't finished either, I had to run it in the e-maxx though just to see what it was like, because it had been sitting in my room for the last week and half mocking me.

[ssspconcepts]

Thanks for all the info guys. Based on this information, I may be changing directions as to which brushless setup I am going to use. Looks like right now I may hang on to my quark 125 for a 1/8 scale brushless conversion or ebay it.

[Patrick]

Originally Posted by ssspconcepts

Thanks for all the info guys. Based on this information, I may be changing directions as to which brushless setup I am going to use. Looks like right now I may hang on to my quark 125 for a 1/8 scale brushless conversion or ebay it.

How come you want to change setup? What do you want to change to?
I think your e-maxx would work well if you went with the 1515 2.5D on 5s, and changed to buggy diffs instead of truggy diffs, and changed to strobe and 51t spur instead of 32p. Then 51/18 would give you about 34 mph, with room to gear up. That's what I would try and do anyway, if I wasn't putting the neu in a 1/8th.

[GorillaMaxx360]

i only asked because i will be using it on my maxx with single speed buggy diffs, 2200 neu, 2p2s 8000maxamps. THe only reason i asked is because i wanted to know what the smallest number pinion i could use with the 51t and you said probably 18t Right. and i just wanted to make sure this was not over geared. Also can i get a slightly bigger spur to work with the strobe like 55t, so i have more gearing options because right now it seems that all i have is 51t spur and 18, 20, or higher gearing and that is not much on the lower end of the spektrum of gearing. that all. my truck is very similar to SSSP's

[luvsrc]

Originally Posted by GorillaMaxx360

i only asked because i will be using it on my maxx with single speed buggy diffs, 2200 neu, 2p2s 8000maxamps. THe only reason i asked is because i wanted to know what the smallest number pinion i could use with the 51t and you said probably 18t Right. and i just wanted to make sure this was not over geared. Also can i get a slightly bigger spur to work with the strobe like 55t, so i have more gearing options because right now it seems that all i have is 51t spur and 18, 20, or higher gearing and that is not much on the lower end of the spektrum of gearing. that all. my truck is very similar to SSSP's

I have used 51 tooth spur on the strobe with 16 tooth pinion on my single speed gorillamaxx and i found out that is the lowest pinion this is my mr g2r revo if you will use it for bashing it will be alright with the quark monster pro with RCM heatsink with one fan but for racing i still had some thermal shutdowns on the the track when the temps here in Indiana went up to 80+ F but gearing it down will take care of the problem, Mike has bigger spur gears to put on the strobe,I think about 62 tooth spur,you might send hime a PM for that.

[Patrick]

Luvsrc is your motor the finned version? If it is, did you have to grind the fins or modify anything else to get the 16t pinion to fit?
Were you using revo diffs in yours? If you were, then 18t pinion with buggy gears (what GrorrilaMaxx360 said he's using) would be almost the same ratio as revo diffs and 16t pinion.

There is a 65t that will fit the strobe with a bit of modifying (I'm not sure exactly how much, I haven't had to do it), but you'll probably also have to extend the adjustment slot in the stock motor plate, because it puts the motor so far away. I think that spur is for a ofna pirate, but I'd check with someone else first, like Mike and I think squeeforever knows as well.

[luvsrc]

Originally Posted by Patrick

Luvsrc is your motor the finned version? If it is, did you have to grind the fins or modify anything else to get the 16t pinion to fit?
Were you using revo diffs in yours? If you were, then 18t pinion with buggy gears (what GrorrilaMaxx360 said he's using) would be almost the same ratio as revo diffs and 16t pinion.

There is a 65t that will fit the strobe with a bit of modifying (I'm not sure exactly how much, I haven't had to do it), but you'll probably also have to extend the adjustment slot in the stock motor plate, because it puts the motor so far away. I think that spur is for a ofna pirate, but I'd check with someone else first, like Mike and I think squeeforever knows as well.

yes I'm using the finned version my 16 tooth pinion on my standard revo diffs is the lowest pinion i can fit in my gorillamaxx single speed tranny without grinding the finns which I will not do it anyways, you can use the buggy version or even the truggy version which lowers the gear ratio more so all you have to do is put a bigger pinion on it, the 18/51 on buggy gears will be the same with my 16/51 on a standard revo diffs

[Patrick]

Originally Posted by luvsrc

yes I'm using the finned version my 16 tooth pinion on my standard revo diffs is the lowest pinion i can fit in my gorillamaxx single speed tranny without grinding the finns which I will not do it anyways, you can use the buggy version or even the truggy version which lowers the gear ratio more so all you have to do is put a bigger pinion on it, the 18/51 on buggy gears will be the same with my 16/51 on a standard revo diffs

Oh, ok. I couldn't get a 16t pinion to fit on mine (2 speed e-maxx transmission and stock motor plate).
I'm trying to figure out why yours will fit and mine won't, and the only thing I can think of is if you have a gorrilamaxx motor plate, that sits the motor in a slightly different place?

[GorillaMaxx360]

does anyone know what size pinion mike uses, becasue he races and keeps quark cool, but it is not to slow do you know what size pinion and spur he uses with his neu.