anyone got a tc recommendation with a x12 10.5 on a large-ish 1/8 track
one 55 meter (180 feet)and one 50 meter straight,very wide open track with 180 deg corners.only one small tight section other wise its free flowing. i think guys running 5.5t mod are fdr 7 or less.
looking for a close fdr if possible as lhs are 10-18 bucks a pinion :(

48 pitch?, I know two different AU based sellers with 6 packs for $20 or singles around $5.

yea i have a mate on holidays for a few days so trying to get a run in tomorrow :D
had the combo in my 1/10 pan car but going to tame that down a bit and give the tc a boost.(was 2s, 45mm roll out, 30 boost, 25 turbo,5000rpm start)
i have pinions to go from 8.2 up to 6.6 fdr or 4.5-4.0 nothing in between.but i am guessing i need in between that 6.5-7.5 ???
i was running 13.5 (no boost) at 4.0 and that was cool after 6 min
i dont race so i use the full track at gilston and like some top end speed :D

You know you may get away with around a 7 fdr, I was using like a fdr of like 7 when I was playing with mine and a SP 10.5 last year, though I read the hotter setups were in the 6 range from memory, around 7 was the original recommendation a half dozen firmware versions ago though.

Yes man, I wouldnt continue to run the car that way. I have the same equipment as you. Cant help with settings neither cause I dont know that much myself. I will however give you my set-up for an indoor track.

Endbell at 0 timing
FDR: 6.8
punch: 9
Boost: 45
Boost ACC: 50
Turbo: 19
Slope: 18
Delay: .1 sec
Sart RPM: 4000-5000

MY temps r still too high at 160, but this was practicing down a whole pack.

Try the D3 setup on Speed Passion's site.

motor getting too hot!
 

guys, need some help!

have been running a sp v3 13.5t in my tc with the following settings on an indoor track, around 30m x 15m with great effect:

motor timing full
fdr 8.1
drrs 9
boost 50
turbo slope 18
turbo timing 25
start rpm 3000
turbo delay 0.1
timing acc 350
temps after 5 mins around 60 degrees

at the weekend, i tried an orca 13.5t with 2 markings advanced on the motor, same settings but fdr was 8.7

car was silly quick, checked temps after a couple of minutes only to see thrm at 90 degrees!!

moved the motor timing back to zero which did help but was still getting hot.

what would you suggest i tuned down? was thinking about lowering my fdr to around 8.3 but reduce boost to 40, turbo to 24 and start rpm 4000, drrs 8.

would this help keep temps down but also keep the car quick? any other suggestions would be great.

mark

Hi I found raising the ACC timing to around 500 dropped the temp in my motor and I didn't feel any overall effect. What software version you running?

software
 

fw is 211

Tried increasing it already but changed on or two other things at the same time such as start rpm, didnt like the feeling as you could really notice the 2nd gear effect in the wrong places and then lost some punch out of the corner.:(

Brake issues
 

Does anyone experience a lack of braking power when trying to brake after turbo kicks in? I have this issue where after the turbo kicks in and I try to brake at the end of a long straight I find that I have less than 20% of the original braking power.

In the short straights in the infield the brakes are working fine.

Hi,

The second gear effect would be caused by the RPM change and the delay with the turbo coming in. Go back to a setting that you are happy with the feel but not the temp and change just the ACC. I you move the ACC up (500) drop a pinion at the same time this then gives you your punch back. I doubt very much you are hitting top RPM on a straight so you wouldn't notice the difference.

I assume you have reverse force at 100%?

Back on my Thunder Tiger SB-5 1/5 rc bike...
Xtreme Stock with a new Nosram Pure Evo 17.5T motor (X12 equivalent), with 4-dots insert.
Xtreme settings:
211 sw
ddrs 5
boost 34
slope 12
turbo 25
start 3000
delay 0.2
acc 250

Before the X12 I had an X11 Nosram, with 7.5 FDR. I upped that to 8.1 FDR and the bike gained top speed and good acceleration out of slow corners. With the X11, motor temps were 90C with the 7.5 FDR, went down to 80C with the 8.1.
Yesterday I installed the X12 motor, FDR tested were first 8.1, motor temps 80C... I went to 8.7 FDR and motor temp soared to 125C!!!!!
But...it was absolutely ripping all over the track, I believe it was like a mod motor! Amazing...
And I use both a cooling fin and a fan on the motor (and on the X11, before)!!!
I left the bike with the esc switch on for 10 minutes on a new battery, just to cool the motor after that run, but I was scared, to say the least! after it went down to 50C, I ran the bike again, with 8.5 FDR and motor temps were again 120 or so...

Battery consumption in all cases was around 1900 mah... Ambient temps all these days are 32-35C...

Any ideas on what could drop motor temps AND keep that great feeling in the motor?!!!

Sounds like your motor is spending to much time with alot of timing. Have you tried taking timing away from the motor, and running a bigger pinion?

A rule of thumb is 5 degree's of timing, is 10c of temp. One tooth (.15 of FDR Change), is also good for 10c of temp. That would be for a 2S 17.5 Touring car. Your Motorcycle might behave alittle different.

When running a lower FDR, you will find it better to use more boost then turbo. this will allow you to still have alot of acceleration in the infield, and just use alittle extra turbo on the straight to keep the top end. Your motor will spin less RPM, and spend less time at full timing, keeping your temps down.

Shawn

Reverse force is at 25%. I am using forward / brake only mode. Does reverse force affect braking force? My Brake force is set at 87%. 100% brake force doesn't make a difference to the problem either.