Which brushless ?
 

Hi, as many of you, I'm looking to take the brushless route. It will be for a X-5 and later a B4.

It's for racing only so I'm looking for very good power control, I guess it will be a sensored one. Probably 5.5 and 6.5 for 4WD, 6.5 and 7.5 for 2WD.

I didn't considered the GM system as it seems to let the magic smoke go out very easily...:D A friend of mine, GM driver, used (smoked) 4 units on 4 runs !:o

The Mamba seems to be too brutal/wild, and nobody has seen the Tekin one yet.

GTB pro's : reliable, reverse drive possible (good for trainings), easy to find cheap

GTB con's : massive with his fragile fan, seems to NEED a fan for anything more than a 6.5, can make some glitches

LRP/Nosram pro's : looks more efficient (no fan required unless you use a 3.5), more adjustable (punch control mainly), some says it's smoother, looks better to me

LRP/Nosram con's : no reverse (why ? It's only a software thing), maybe less reliable (at least for the old versions)

Those are only bench and internet rumors, so I'd like to have your advices, specially if you have own both !


Thx;)

I keep talking to myself here :D

Anywayz, I think I am going to the LRP/Nosram route now. My question is : is it okay to use an original Sphere (not Comp) for 2WD with a bonded 7.5, maybe 6.5 ? Or would it be pushing it hard ?
The reason is I like the reverse mode of the original Sphere. It will save me some trips down the drivers' stand to self-marshal my car :mad: :cool:

if its for racing only u shouldn't need reverse and its illegal in the UK at nats
lrp/nosram all the way

its not illegal at the national's, nothing about it at all in the rule's. been over this a while back with paul worsley. reverse is fine to use at any brca meeting

Yes, but you can change the mode for Fwd/brake only, and I live in France and here nobody cares if you make the entire run in reverse :p

According to the LRP Website

LRP Sphere Brushless #80500 is ok for
7.5t #50661
6.5t #50671

LRP Sphere Brushless comp #80700 is ok for
5.5t #50681
4.5t #50691

7.5t, 6.5t, 5.5t are bonded, 4.5t is sinitered (not that I have a clue what that means!!)

As for reverse (legal or not), I hate it, theres nothing worse than someone reversing into your path because they have crashed...You just dont expect it. I hate to make generalisations, but it tends to be people who are newer to racing and dont really consider other drivers

I run the Mamba Max and it's excellent. Really nice and smooth power delivery, good and controllable. You can set it as forward only, or reverse. Before I bought it I wondered whether it was going to be only good for 'bashing' but no, it's totally raceble - top notch.

The Mamba max (motor) is not BRCA legal. This is not a dig, its just information for people who might be thinking of buying one.

G

I picked up the LRP Sphere Comp today but i haven't run it yet but will give you my thoughts on it after the weekend.

Whats the census on LRP/Nosram Speedos blowing. ive seen one do it and seena fair few pictures of them gone up in smoke. Anyone know if this is user fault or they do this spontaneously?

:) I hope it's not spontaneous as both my son and I have the latest Nosram systems. I havn't seen any smoke yet but mine did seem to cut in & out possibly due to high temperature caused by overgearing, I lowered the gearing and havn't had a problem since.:)

The people i've spoken to have had no problems with their LRP systems either.

the nosram evo. is fantastic, cant really fault it.

yoo dont need reverse. just dont crash :p.

go for nosram all the way.:cool:

Novak all the way. Novak is the forerunner and the rest just copy novak.

The novak fan is crap but just change with a Muchmore fan.

LRP also should have a heat sink and fan, but makes the customer buy one.

GAYO: Why would you want a bonded rotor?

I do not have one, but, from what I am told the sitered rotor

1. helps the ESC run cool

2. increases torque

3. has more "natural" dead stick braking making it feel more like a brushed motor.

I ran the LRP last night and it was fantastic. The car felt so driveable and smooth. I can't recommend this system highly enough.

Big thanks to Rich Lowe and Vermin for all their help and tips.

Was this in your Yoke? If so what motor did you use???????:confused:
Thanks M8.

it was a 5.5

:cool:

Thanks M8.;)

Yep Andy's right it's a 5.5.