How are the Rx8 & T8's holding up? - Page 10 - RC-Monster Forums

SpEEdyBL · 09.23.2009, 01:03 PM

14/46 is what I used to run with my castle 2650 in my 8ight, even with 5s and there is no to little increase intemps over an 11 or 12 tooth. With the 2200 which has more torque due to the longer can, you should at least be using a 16 or 17 tooth pinion gear, and you will see why castle motors are generally reputed way too fast for the track.

Once again my tekin 1900 only runs 10 degrees warmer geared 20/46 than geared 14/46 or 16/46.

bryan · 09.23.2009, 01:47 PM

I was running a castle 2200. In my 8t 2.0.yeah way too fast and way too much torque. I even run mikes slipperential,still a gear muncher.i now run the 1700 tekin,and yes we can get along w/mmm on 5s 15/46.couldnt be happier, other than i could land back flips with the 2200.

brushlessboy16 · 09.23.2009, 02:04 PM

Quote:

Originally Posted by bryan

I was running a castle 2200. In my 8t 2.0.yeah way too fast and way too much torque. I even run mikes slipperential,still a gear muncher.i now run the 1700 tekin,and yes we can get along w/mmm on 5s 15/46.couldnt be happier, other than i could land back flips with the 2200.

I have mine in a buggy on 4s... cant get the thing to cool off.

running 60 percent punch/current limiter. 0 timing.. if I wanted to I could make this thing eat gears..... saving that for my local tracks big jump competition at in november

bryan · 09.23.2009, 02:23 PM

When i was running the 2200kv i couldnt keep anything cool i tried gearing ,timing,punch control, throttle curve,4s,5s,and the list could go on.bottom line i sold it on ebay bought the tekin system and am now selling the tekin esc. On ebay "ends tonight".my mmm has been faithfull to me. And i am very happy w/my current setup.

Jagemon · 09.28.2009, 06:27 AM

Just a quick Q.

Do I get some notification from Tekin Support when my ESC have arrived to their repair department or anything? I really don't want to lose the ESC somewhere in the world and the support wont answer atm.

"Gone racing.."

TekinTeamMgr · 09.28.2009, 12:55 PM

No, we don't generally tell you we recieved it. Hopefully you sent it with some sort of tracking ability, that will tell you if it was received.

kalbien · 09.30.2009, 08:03 AM

I have to cheer this a little. I've changed my setup a little and riding style as well... here is what I run
2000kv tekin rx8 combo - third rotor in it, holding fine
5s 3300mah hyperion VX batteries
mike's slipperential with 14tooth pinion

I've changed timing to 0 and played around with throttle profile on my DX3R to give it less throttle in start and more when running fast.

I've also changed my driving style for way more smooth control over car and over throttle - since aggresive full throttle means total hell geared like this. Result:

I won 30min main among nitros, changing batteries twice. Compared to second guy who was only refueling twice too (but it took him 5 seconds, while it took me 40) this is HUGE success. Plan was to have 5000neu battery for first 14minutes, than 3300hyperion for 9 and another 3300 hyperion for rest. But after some jump that fat 5000 jumped out from car in 5.5 minutes and I have to make 13minutes on 3300mah 5s lipo while racing. So I have to smooth my driving as much as possible and I did that. Twice. Right after 30min motor was on 77celsius (170F) and ESC was running two diodes (I have novak cooling fan on it and it works great).

I know this sounds strange to be happy that my combo survived 30min main.. but reading it here and also seeing my friends going home without any racing at all, I feel it like success.

hubbaman · 10.02.2009, 12:32 PM

Ok, enough is enough,had a 2nd V2 rotor seperate,did'nt even get 5 minutes out of this one,had the tekin gear for just under 2 months,gone thru 2 rotors,and have'nt even got on a race track with the thing yet,totally unacceptable,i want my money back!

Marvin · 10.02.2009, 12:48 PM

Seriously?!? Where were you using it? Have you changed anything since last time?

Oh, and Rich has got some I-Beams in for you at the shop, do you want me to pick them up tomorrow?

hubbaman · 10.02.2009, 03:17 PM

Quote:

Originally Posted by Marvin

Seriously?!? Where were you using it? Have you changed anything since last time?

Oh, and Rich has got some I-Beams in for you at the shop, do you want me to pick them up tomorrow?

Watcha Si,yeah can't believe the new rotors gone the same as the other one,had enough of it now,say cheers to Rich for me,but got a deal on some I-beams from J E Spares.

eovnu87435ds · 10.12.2009, 06:28 PM

From what i've seen following brushlessboy16's thread titled the Brushlessboy16 curse, Tekin has been able to get him his rx8 fixed and back to him in a week or 2 both times. Granted, he does live in the USA, so that timeframe definitely wouldn't apply to the UK and germany. But repair time in tekin's factory should be the same. If any of my stuff had to be sent overseas, I know I'd be calling about it just about every day

wallot · 01:43 AM

Got new rotors in a weeks
RX8 (the messed up one i got from tower) turnaround time about 3 weeks with registered airmail to Tekin and USPS Airmail back so quite good.

Tekin service has been so far top notch, if only the rotors were not .......

TekinTeamMgr · 10.13.2009, 02:00 PM

I'd like to know what setup you're running and having rotor issues. I'd like gearing, car, battery used,etc.

hubbaman · 10.13.2009, 04:18 PM

Quote:

Originally Posted by TekinTeamMgr

I'd like to know what setup you're running and having rotor issues. I'd like gearing, car, battery used,etc.

Well for me its a Tekno rc v3 x2-crt conversion running standard spur,12 tooth pinion,tekin Rx8/T8 2000kv truggy motor,hyperion 5s/6500mah G3 lipo,firstly, used direct drive,v2 rotor broke,2nd time used mechanical brakes, with esc drag brakes and normal brakes turned off,replacement v2 rotor broke even quicker,third time i am going to try the tekno clutch,with mechanical brakes,on a 13 tooth clutchbell,hopefully the rotor will last longer then 4 minutes,but will let you all know.

wallot · 10.13.2009, 06:34 PM

Quote:

Originally Posted by TekinTeamMgr

I'd like to know what setup you're running and having rotor issues. I'd like gearing, car, battery used,etc.

Losi 1.0, 2.0, Xray XT8, MBX5T

All are 1700kv motors on 5S running either Zippy 30C/40C 5000mah, Hyperion G3 35C/65C 3300Mah and 4200mah or even A123 6S2P

All temps are normal. Nothing showing extra stress on the motor.

All cars are under 10lbs RTR

80% of the cars use RCM slipperential.

All geared 38-43mph

Different cars, different driving styles, same motor issues.

All I did was change T8 with Neu 1415 and I am sure it will last forever. As I used to run Neu 1512 2050kv on 5S in my mugen and no issues. The Neu 1512 used to be in ma heavy bashing maxx and went throught lot of stress with flying colors (including hammering stuck pinion) and still works great.

Rest of the guys will follow as I dont see a single reason how can our setup cause loose rotor as most failures differ. Sometimes just magnets separate, sometimes just the front spacer along with couple pieces of the rotor.

With the rotor being made from so many pieces the glue is not strong enough.