tomato18

Is there a X12 13.5?

cyclone speed

Ive been told that there will be no 13.5 motor , only up to 8.5 .

I have a question wich is abit off topic but instead of starting a new thread i thought i would ask the question here : what will be the recomended gearing for a medium track and for a medium-tight track with a NOSRAM 3.5 X11 ?
I am mainly looking for runtime .
Thanks in advance and sorry for the off topic question .

mok

iTrader: (9)

i used to run the LRP x11 3.5, here's what i was using *rough guides only*

large (250m) outdoor asphalt track, geared around 9 FDR
medium (140m) technical asphalt track i used around 11 FDR
short (80m) technical carpet track geared around 12

all adequate for runtime, usage varied from around 2700 to 3800mAh in 5mins

maybe pick something conservative but not overgeared (10.5 FDR) then temp the motor after a couple minutes of constant driving..
IMHO temps 60-70 are safe, 70-80 performance end of the stick.. over 100 you're prob going to kill the motor

but then you havent said if you're just bashing around or racing mod etc?

cyclone speed

12 how am i going to gear this , i have no space for my spur .
Still , thanks for the gearing i will try them .
Thanks

mok

iTrader: (9)

Burito:

I know this is off-topic, but still LRP related

What is the lipo cut-off voltage on the LRP TC Spec ESC ??

I have ran my packs (LRP Comp 5300s) until the cutoff has triggered a couple of times and when charging, the packs start at 5.25V....

Is this a faulty cutoff or is this what the voltage should be reading?

-Mark

Slideaway

To Burito,

I would like to know when the 12.0mm diameter magnet will be available.
I would need for replacement as the magnet of my X12 4.5t (geared around 8.4 with 6 cells in RCS Bangkok) recently exploded for unknown reason. Motor temperature measured around 99°C/105°C.

Thanks in advance for your reply.
Tschüss.

Slide

1rcracer

Hey Guys....

First of all...... LPR X12 is one sexy looking motor...heheh

ok... now.... i run at a medium sized track geared at about
8.5 fdr i used to run a 4T x11 i have now the 4.5 x12.

at a recent race meet the guys were killing me down the straigts and in the tighter sections i was not much quicker anyways. i tried upping the profile on the Tc speedo ?

any ideas...

Yokomo_Ant3

iTrader: (29)

I ran a FDR of 10.2 with the 4.5 this weekend on a small to medium ashphalt track. You might be a bit overgeared. All my settings on the speedie are low.

Hope this helps

JayL

x-12 4.0 gearing start? 8.8?

5 min races

2s lipo

CraigM

iTrader: (34)

Can anyone confirm this?

My SPX stock spec keeps killing novak motors 10.5s (I've done 2, and everyone I know that runs the SPX with other brands has killed at least one motor) so I want an LRP but the vector stock spec doesn't pull as hard as the novaks do. I figure there is bound to be an updated 10.5 sooner or later, just wondering if I should be expecting an X12 or if I should just get rid of the SPX

burito

@JayL: 8.8:1 will be too high gearing for X12 4.0t when using 2S LiPo most likely! Our recommendations for this setup vary from 10.0 to 8.7:1 depending on track size, what track are you racing on?


@CraigM: I can confirm that there will be no X12 StockSpec series released anytime soon, so no 13.5T for the moment.
Please make sure you have gearing & mechanical motor timing set correctly when burning stock motors using a stock brushless speed-control!

CraigM

iTrader: (34)

Thanks Reto. I don't touch the timing on my motors but there's something about profile 7 on the SPX stock spec that makes other brand's motors overheat exponentially. The same thing happened with both my novaks - profile 7 and geared to mid 60degC, I picked up a little more speed (e.g. a couple tenths) with setup changes and they fried. After I did the last motor I dropped back to profile 5 and the next motor temped below 60. Go figure. A similar thing has happened to 3 other people I know, their motors have temped well below "hot", they've got up 1 tooth (normally worth about 10degC) and their motors have cooked. The one person I know running SPX and LRP 10.5 is fine, drives his motor harder than all of us with no probs

Anyway, sorry for the thread hijack, I was hoping an X12 10.5 would be on the horizon but I guess I'm stuck with the old stock spec for a while

JayL

burito: Speedworld, the 2009 REEDY race track, my home track. I am also running the lrp tc esc if you have a profile suggestion

burito

@JayL: I would suggest using X12 4.5t on Speedworld track, if you plan using it with 2S. We also ran 4.5t at the Worlds in Thailand, which was used with 6-cell NiMH cells, this was already "lots" of power and I do think X12 4.0t with 2S LiPo will not be a good choice.

On Worlds track we ran following settings:
- battery: 6-cell NiMH (same goes for 2S LiPo roughly!)
- motor: X12 4.5t
- gearing: ~8.6:1
- timing: "oooo" insert (lowest timing)
- speedo profiles: 2-3-1-1

I'd say start similar at Speedworld, if anything you should run slightly lower gearing there as straightaway is shorted (e.g. something like 9.0:1).

If you really want to run X12 4.0T, then I'd recommend following settings:
- battery: 2S LiPo
- motor: X12 4.0t
- gearing: ~9.8:1
- timing: "oooo" insert (lowest timing)
- speedo profiles: 2-3-1-1

JayL

Thank you sir! I appreciate the info. I will try it out Sat.