Brushless B4!!!!

[SCOTT DICKINSON]

Found it very difficult to obtain info on brushless in race use offroad which was a little scary spending £260 ish on something that might not be up to the job so I HAVE JUST FITTED THE LRP SPHERE system in my B4ft, just curious to see if they are as good as they advertise, thought i would bite the bullet :confused:
AND ITS FANTASTIC :D
been testing it on our track(D.H.D racing) and its awesome!
just as quick as my brothers b4 on the straight(he was running an 8 double)
and very easy to program and fits in the b4 very neatly allmost made to measure.
braking was great and the free wheeling has a programable amount so that sorted out the rumour of freewheelin forever.

you couldnt tell the difference between both cars on all aspects
except mine had longer run times and didnt get hot at all(even after 20 minutes continuous,1 battery out nother straight in lets go) :)

i am not putting this info on race chat advertising this system just thought people might be interessted or thinking of investing but not sure enough to shell out best part of £300
also do not know about any of the other systems they must be worth checking out if they go as well as this one
we at D.H.D love it and welcome anyone wishing to run one at our club, the way we se it is less maintainence =more chit chat and a more social club :)

any questions or tests you would like me too carry out on this lovely overgrown fish tank motor let me know :cool:

[ian h.]

i knw wat ure sayin. i run my novak stock brushless in my xray 1.10th and hav dun 4 6-7 months.i think thre fantastic and mre peple shud use thm coz thre the way forward and so much fun. thy tke a lot off stress out off racing as well coz thre is no having to mess about with brushess and comutators. also i found wen i strtd using it tht aftr a couple of mins on the car i cud go off again and tlk to evry1 which is wat mst off it is about. so i wud urge peple to try thm out iff peple hav got thm at ure club becoz aftr having a go u will want 2 purchase 1 for sure. is thre any chance of u getin tht lrp in a 1.10th.if so i urge u 2 give it ago. keep us psted on how it performs ian

[Doughty]

I ran the LRP Sphere and LRP VECTOR brushless speedo/motor combo in both my cars at the model expo.

Like Scott says, they feel like a brushed motor with the automatic brake setting on the speedo, many people had a go with my car and most could not tell it was running a brushless other than the ones that saw the car before they had a go.

speed was faster than anything else I have run in my car

runtimes were insane, we were the last demo on at the end of the day on saturday so we just had to run till the end of the show, 8 minutes had passed at full speed and I got kicked off... still had power to spare.

[jimmy]

i knw wat ure sayin. i run my novak stock brushless in my xray 1.10th and hav dun 4 6-7 months.i think thre fantastic and mre peple shud use thm coz thre the way forward and so much fun. thy tke a lot off stress out off racing as well coz thre is no having to mess about with brushess and comutators. also i found wen i strtd using it tht aftr a couple of mins on the car i cud go off again and tlk to evry1 which is wat mst off it is about. so i wud urge peple to try thm out iff peple hav got thm at ure club becoz aftr having a go u will want 2 purchase 1 for sure. is thre any chance of u getin tht lrp in a 1.10th.if so i urge u 2 give it ago. keep us psted on how it performs ian


Ive just been out and im a little worse for the drink, but you HAVE to be taking the mick with that spelling mate... :rolleyes:

Oh sorry, just noticed youre banned already.. probly made people go blind trying to read that madness.. !

[rtsbasic]

Are the LRP Vector/Reedy Neo One motors the same with a different label?

The system sounds brilliant, but I'd never buy one because these race orientiated controllers can't handle much voltage, the Mtroniks gear handles 12 cells with no problems. 12 cells can be interesting to drive to say the least.

[Doughty]

Are the LRP Vector/Reedy Neo One motors the same with a different label?

I am not 100% sure but i believe there to be a very strong connection between the 2

[SCOTT DICKINSON]

What i am especialy liking is the ability to turn up at our track everyday and put 6 batterys through this B4 in less than an hour (NO WAITING FOR COOLING OR SKIMING :D )thats roughly the equivalent of one race meeting a day which is great for practise :cool: surely i will very soon see a better result on the track.
i now have the chance to train like an athelete would do (regular,daily) what i meen by this is everyday not just racing weekly :)
I LOVE IT!!!!!!!
lets hope they allow more use of them next year
YES they are expensive, but so is a K.O or FUTABA tranny. people buy these to improve their racing in lots of areas.but surely practise will increse you performance significantly :D

[StueyS]

Hi, how does the weight of the motor compare to the average modified brushed motor? I have a Mega brushless 600 size motor in a plane running on 16 cells which weighs a ton, i would have thought a car motor would need to be similar to a brushed one for weight distribution. The idea of not having to muck about with motors and brushes is very appealing, i would not buy a brushed motor for a plane anymore.

[SCOTT DICKINSON]

Slightly lighter than the normal brushed motor :D

[rtsbasic]

Varies on the motor..you can get brushless ones for cars that are about the size of a coke can!

For 6 cells the best type of motor to get is a 380 size one with an adapter, they work out very light compared to brushed. Mtroniks sell one which isn't totally balistic but its powerful enough to keep up with modifieds, however you can easily get other ones that are a lot faster than this, up to about 300w of constant output on 6 cells. Acceleration with these smaller ones is really good because the rotors really small, thus light.

540 size brushless ones vary a lot, the only one I have - Mtroniks plasma pro is a tad heavier than my P2k motor.

[StueyS]

Thanks, you can add a little weight to the rear, but its harder to remove it!

[ian h.]

Ive just been out and im a little worse for the drink, but you HAVE to be taking the mick with that spelling mate... :rolleyes:

Oh sorry, just noticed youre banned already.. probly made people go blind trying to read that madness.. !

just to let you know i was abbreviating. obviously i wouldn't have if i knew it was going to get me banned. :mad:
i personally think it was uncalled for but what ever i know not to do that anymore :rolleyes:

[Paul Rotheram]

i think the brushless is quite lighter than a brushed. last week Tricky and Danny Mcgee came to southport, and Tricky was running the new lrp brushless set up to try out and he made his xx4 wheelie cause the motor (near the front) is lighter than a brushed! Danny also made the car wheelie but im unsure what he was running (he only managed it once though haha :D )

i hope they are legal for next year as im all for brushless! :D

[Doughty]

Paul, its only around 10 gramms lighter than a 'normal' 10x2 mod motor so i don't think the lack of weight up front was the reason for the wheelies.

[Paul Rotheram]

Thats cause it was a 9x2 :D

No i dunno, he did say he felt a difference with it, maybe its just mentally. Sure could hear it on the straight though but i think that was more his car than the motor.

[SCOTT DICKINSON]

Still running well after a lot of use. no drop in performance :D
may have to make up new motor protector/rear bumper as motor has tabs for wires on top so a little vunerable maybe??? maybe not no probs yet but does not hurt to be safe than sorry :)

[StueyS]

Does it have the ability to reduce the power, say if the power of a 9 turn was too much and say an 11 turn motor was more suitable? I don't think people would want to have to buy too many different winds to suit conditions :o

[Doughty]

There might be different power rated motors available at a later date.

the one currently available is a '3star' there may be 1 through 4 star rated motors available later (higher the star th quicker the motor)

you can also RPM limit the motor from the speedo for spec or 'stock' racing.

Scott - there are 3 pairs of motor screws on the motor, you could rotate the motor so that the solder tabs are facing into the car, they will be protected then.

on a side note, I believe Neil Cragg is running one at the worlds right now

EDIT - you can also change the timing on the motor to change the rpm/torque of the motor so you might be able to get what you are looking for thre Stuart

[SCOTT DICKINSON]

Cheers Chris, i will do that to it before sundays meeting, i didnt like to dimantle it this early on . but if i had i would have probably seen that :D
note: i must pay more attentionthanks chris again :)

[rtsbasic]

I thought for brushless motors you changed the timing on the controller not the motor? Does it have any effect if you adjust it on the motor?

[Doughty]

the LRP system that Scott is talking about is a sensored system.

I believe that the Mtronics systems are sesorless.

timing on the LRP VECTOR motor works in a similar way to the brushed motors, its all explained in the VECTOR motor manual (its hidden in between the 2 header cards, I know I could not find mine)

[big-chris]

hi
does the lrp and others not do dynamic timing changes with the software?
chris

[rtsbasic]

I am aware that the LRP system is sensored and my Mtroniks is sensorless, but I can't see how this affects the timing?

Sounds good if you can adjust the timing on the motor though, does it make much of a difference? With the Mtroniks advancing the timing from 0 to 6 or 12 degrees seems to only make it less efficent and not gain much at all, but the LRP probably responds differently because they use different winding styles?

[big-chris]

timinig should be adjustable by the speedo electronically as the revs rise

the "firing" point of the coils is dermined by the sensor and the speedo's program

this could change relative to the armature via the speedo's program as to give low timing at low revs for max acceleration and increase the timing as the revs rise for maximum rpm

this is simply a matter for the software on the speedo