Minami

iTrader: (5)

what's the difference between this SPXs..?

LRP SPX Brushless Competition StockSpec

and

SPX Brushless Bullet Reverse


i'm confused now on which is the right now..

what do you guys have?


EDIT: Typo.. and narrowed it down a little.

LOW ET

iTrader: (109)

racers are using the spx competition stock spec. # lrp80710

Minami

iTrader: (5)

does the 80710 come with a heatsink? tia!

Pablo Diablo

iTrader: (3)

The stock spec is the only one that advances the timing as rpm increases to the point you have a performace advantage.

LOW ET

iTrader: (109)

yes, but you have to install it if you want to use it. it's just double sided taped on.

Minami

iTrader: (5)

thanks guys! very much appreciated. just making sure i get the right one..

Murphy's Law

I've read all the threads with interest, and have my spx coming! (Getting really frustrated with my GTB !)

I've noted the comments that the spx seems best on the longer tracks where you can utilise the extended rpm range. What is the experience of guys running on tight, technical tracks? If you gear to use the extended rpm range, are you losing the advantage of lower-geared torque out of the corners due to wheelspin?

syndr0me

iTrader: (32)

That's not exactly true. It's a double-sided thermal tape designed to conduct heat. Normal tape won't work at all. I went through a whole learning process on this when the heatsink fell off my TC Spec.

Also, I think running the heatsink on my SPX makes it fade less. That's totally subjective, but I swear it runs better now.

LOW ET

iTrader: (109)

my comment was put into the most simplest terms. yes it's double side thermal tape. peel the tape and stick it on. everything is included in the esc package to do this.

Skiddins

Because of the lower gearing used you will tend to find it's a bit too easy to wheelspin.
It also seems to be easier to get too much heat build-up in the motors.

Try gearing on profile 6 and get the temps right, then go up to profile 7 but go down at least 2 teeth on the gearing.
Again keep an eye on the temps.

If the track you're on is too tight profile 8 will be of no use.
Profile 7 might be beyond it as well.

Skiddins

sidecarphil1

iTrader: (1)

ok we tried the SPX stock spec today and i am dissapointed

we have changed from TC specs to the stock spec and we programmed to program 8 and tried every gearing from 5.7 to 4.2 and still between 1 and 6/10ths slower then the GM120 powered cars !!!!!

they used to be able to pull 2 to 3 meters on our back straight now they only pull 1 to 2 and they have the same sort of punch on the infield we have

i dont know the motor temps yet but i will update as soon as i speak with my mate

our gearing on the TC spec was 3.7 and we use either a 10.5 with 5 cells or a 13.5 with lipos

please help as i am wondering if i should have bought the GM120 !!!

thanks Phil

SalvadoriRacing

there are many other factors............

battery is definitely one.............

also 1 to 2 meter down the straight will never put a difference of 6 tenths, so this gap comes from other losses around the track and not necessarly from poor speedo performance......

is everybody using the same motor and mechanical timing??

did you try profile 7 or even 6? sometimes profile 8 is best suitable to fast flowing layouts or long straight..........

again, battery plays a big part on this, I can say a TC Spec with good batteries can easily beat the SPX with so so batteries

Still Bill

iTrader: (16)

Hi Murphy's,

I see this is your first post. It is a good question; but, without you having provided any information about your car, motor, battery, tires, track (asphalt or carpet), etc. we cannot respond with any certainty that we will hit the target. Please clarify further...

Cheers!

Bill

sidecarphil1

iTrader: (1)

the only thing we changed was the speedo the batterys are either good new EP4600 5 cells or LRP 5000 lipos , motors are different but i use the LRP 10.5 and that is i believe a fixed timing motor ???

please help i am really struggling to set this speedo up ???

SalvadoriRacing

you can adjust the timing of the LRP X11 stockspec motors.....you will see a mark on the motor label which comes from factory aligned with a mark on the endbell ring.......you can play advancing 2mm at a time and see how it performs......

to turn the ring and advance the timing you have to loosen the 3 screws of the back plate........

I can't help you much because I don't run 5-cell, with 7.4v lipo and lrp 10.5 motor you can gear the motor at 6.5~7.0fdr if the track is small..........try power profiles 7 and 8..........