1s Li-Po, 13.5BL Motors & ESC's

[Chequered Flag Racing]

post releveant info in this thread please

[Chequered Flag Racing]

ok so here goes

ran this last night at TRCC

http://s1100.photobucket.com/albums/...view=slideshow

got the bumper to sort out though and look for a more suitable esc & motor

mmpr was 67.32

not sure on springs back and front (second hand car) but foams were 50's front & Pink Med rear

one other 4 cell G2 running and he reckons there's not a lot in it between the two

did try additive and it made a good difference in that I could put the power down, what power and the steering was more direct.

need to compare my 4 cell v the 1s next time I go to the track with the same chassis setup on both

[truggy lover]

as reguards speedo most in our class at ardent Glen are running the gtb2 (will run 1s) and motors i think is a split fusion exceed and spV3 both have timing advance

how did the car feel , i felt when i went out with mine for the first time it was slow but lap times say different i think its just that you dont get the burst out of a corner makes it very linear if you know what i mean

[Chequered Flag Racing]

Felt very linear on the throttle. Will compare with 4 cell next time I can get trackside

Have the SPv3 & Novak 13.5 so may try those.

unedited video that another driver did for me from last night

[truggy lover]

was your speedo in spec mode i.e. no timing advance ?

looked very smooth

did you enjoy not messing with the G2 motor and just coming back 1S on charge sit and wait ?

[Chequered Flag Racing]

Originally Posted by truggy lover

was your speedo in spec mode i.e. no timing advance ?

No. It can run upto 12 on a timing mode but not sure what that equates to. Does not have turbo though. So I could run the esc with timing on a motor that has no timing to adjust.

And it was very smooth to drive

Originally Posted by truggy lover

did you enjoy not messing with the G2 motor and just coming back 1S on charge sit and wait ?

G2 motor. All I do is one drop of wd40 each run and drop of oil on the bushings

Cells. All I do with NiMh's is charge and go with the occaisonal balance for them.

[truggy lover]

first impression over 4 cell G2 ?

[Chequered Flag Racing]

Originally Posted by truggy lover

first impression over 4 cell G2 ?

much the same I would say

I'll need to run both on the same track to really say with the same setup on each car

[Gazza]

Looks well good Glen not sure on the timing tho.

What ESC was it

[Chequered Flag Racing]

Originally Posted by Gazza

What ESC was it

Team Orion Vortex BMC

Latest software can using timing upto 12, whatever that is and has a few more options for voltage cut off. When it was only 6 it still wasn't a patch on the Tekins so I doubt it'll touch them now. It also has no turbo or boost unless that's the timimg slider. KO in USA can rewrite them so it has blinky mode I believe.

[4_cell_racer]

Originally Posted by truggy lover

as reguards speedo most in our class at ardent Glen are running the gtb2 (will run 1s) and motors i think is a split fusion exceed and spV3 both have timing advance

Neil, What are your thoughts on the GTB 2 speedo? also what are your thoughts on the Exceed speedo? dunno which one to go for???

Does the GTB 2 run fine without the booster?

[truggy lover]

The exceed has timing advance so won't be legal if the rules go through in present form , not run the gtb2 in anger yet Gazza has and it with out voltage booster fine mate I couldn't catch gaz lol

Pm me a out gtb2 I'll tell you where I got mine from for £65 delivered

[mcjjordan]

silly question but is there an esc that is designed for 1c?
ie booster built in and cut off ?

[Gazza]

With out looking up all the specs on the web I would say yes

BUT they may have turbo and boost and we want stock like the GTB2 which I have found runs with out a booster

[4_cell_racer]

Im going to be running my Tekin this weekend (in blinky mode) till i get a new speedo!

[Sheepdog]

That is one sexy Mardave you got there Glen!! lol!

Originally Posted by Chequered Flag Racing

Felt very linear on the throttle. Will compare with 4 cell next time I can get trackside

Have the SPv3 & Novak 13.5 so may try those.

unedited video that another driver did for me from last night

[Chequered Flag Racing]

Originally Posted by Gazza

With out looking up all the specs on the web I would say yes

BUT they may have turbo and boost and we want stock like the GTB2 which I have found runs with out a booster

posted on rctech in a thread about the KO/Orion esc

Ok if you have version 1.5 firmware ( this is the software in the device that actually runs the ESC) Then through the BMC manager program and an interface link you will be able to adjust each profile. There are 5 pre programed profiles on the ESC at anyone time. You can adjust the drag brake and switch between profile with the button on the ESC, but you will not be able to adjust the other parameters unless you have the link and a PC with the BMC Software.

Now for timing. The KO ESC will add timing to the Motor when you hit full throttle on the radio. The timing amount is not well communicated in the software so I don't know what the actual values in degrees are but the older BMC manager had 6 steps the newer one has 12. This variable can be adjusted without additional firmware if you already have v1.5 on the ESC.
Because this is not a dynamic form of timing it adds considerable heat to the motor, almost like advancing the physical timing on the endbell. It does make the motor spin faster, but is very inefficient in its operation so you get lots of heat.
Timing and boost are usually two ways of applying timing advance. Some of the newer controllers only do it one way and they call it boost. Others apply it two ways and call one timing advance or boost and the other turbo. So lets start with the basics. These ESC's allow you to choose and RPM range that you can apply a certain amount of dynamic timing advance. You then can select the number of degrees you want to advance and it will apply the timing linearly from the starting RPM to the End RPM. So if you choose 20 degrees of timing from 5k-20k rpm then for every 1000 rpms the ESC will add 1.3 degrees of timing. For turbo or boost or whatever they call it, there is usually a setting that denotes how much more timing will be added on top of the original amount after a delay of either rpm or full throttle is reached. Some controllers are capable of added a total of 65 degrees of dynamic timing to the motor. All this comes at a cost of heat and lost torque. So ESC have really effiencent algorithms and keep things pretty cool. But it is always possible to melt the motors.

As I said before the KO is good for Zero timing. But in the super stock class probably can not keep up.