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Old 12-31-2010, 07:09 PM   #541
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35x15 meter.
I run 1:10 tc and not 1:12.
with 1:12 you can gear heavier because the car is lighter.

Motor temp was between 65 to 90C.
best lap times was when the motor got about 75 to 80C.
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Old 12-31-2010, 08:32 PM   #542
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I tried today the BD speedo.
I must say it drives smooth. it is the smoothes speedo there is.
But infield it is about the same as all teh other speedo´s that I have.
We tried several gearings to see if it would go faster but I am not that impressed from the infield speed comparred to the GM and the Tekin.
The 2 fastest speedo´s I have. with both of them I have set a faster laptime.
Compared to the LRP SXX ss that I have it is the same.
To get a good infield speed, I had to gear it light. Even on a short straight I came top speed to short compared to the Tekin and the GM.
ended up 2nd in a practice race. I gave the speedo to the winner and he tried it. He became 3rd with it.
He was just as impressed about the feeling but also he didn´t found the infield speed so impressive.
I use a FDR with the Tekin of 7.0 with the SP13,5T motor.
With the BD I tried the same FDR and geared heavier to get more top speed.
But that made it slower in the lap times. Geared it even 8,5FDR but 7,2 FDR gave the best infield speed and the best lap times. lighter made it a bit faster in teh infield but the laptimes dropped because of a to low topspeed.
Laptimes wer close to the Tekin and the GM but for the speeds I wasn´t impressed like some of you in this topic. I was reading the topic and I couldn´t wait to try the speedo my self. I´m a bit dissapointed in the speedo. It drives better than the LRP but the Tekin and the GM are still the fastest speedo´s ad my club. And I now for shure that the speedo on our outdor track will come to much to short in top speed.

on small indoor tracks this is a great speedo but on our tracks it is not.

I think that as there is more top speed, that than the speedo will be also a good speedo for the larger tracks out here.
Guys have been using up to a FDR of 3.8 in 17.5 with the BD (SPV3) here, so i would say you may need to gear up. Around 5 possibly. Start on profile 4 and monitor temps That is full timing on the motor also.
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Old 01-01-2011, 03:03 AM   #543
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Default 1/12th rollout

I run on mainly large indoor tracks and have found you have gear higher for the BD.
As an example with the Tekin 212 i ran 52mm with the BD 57, this was with a GM V3 10.5 motor.Like wise similar rollout with with a Novak. The one thing the the BD does have is is infield speed only lacks a little on long straights. Hopefully this will be corrected on the new upgrade as and when it is available.
would also be nice to have a hotwire to be able to do this at home.
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Old 01-01-2011, 05:57 AM   #544
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The main reason he is having problems is due to the wrong gearing...

1st and foremost... Set the profile to 5 for spec racing... It is not only faster, but has more power too...

2nd thing is gear up... Motors do vary a bit but with 17.5's we find 4.0-4.5fdr with 10 degrees over standand motor timing (thats 40 degrees for those that understand real timing) gives the best performance. I find 10.5 varies a bit more anywhere between 5.0-6.0fdr with the same timing settings. I personally like the feel of 5.5fdr. With your 13.5t I would try starting at 5.0 and see how it goes.

Just as a rule most "smart" type ESC's don't generate max punch if they are undergeared. ESC's like Tekins get around this because you run higher rpms and therefore more timing more often so you get the power back (at the cost of ESC fet life).
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Old 01-01-2011, 06:38 AM   #545
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thanks I will gear a lot heavier.
motor timing is on 10 with the sp motor.

so with a 17,5 a fdr of 4 to 4,5.

I will let you now how it went.
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Old 01-11-2011, 07:23 AM   #546
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are there any updates for the BD coming any time soon.
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Old 01-11-2011, 10:35 PM   #547
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sorry i couldnt find the discussion but when the car coggs/lags/pauses off the line is it due to being over geared?

i didnt have an issue until the main.. i tq'd and in the main i cogged off the line. i caused a pile up so it was a restart. on the second start same issue. the only thing i changed was the battery pack for the main (i am a believer now that my SMC has nothing on my thunder power). would the battery pack be an issue? like i said the only thing i changed was the battery pack.

wgt 1s w/ boss 10.5. geared 88/36=64.26 r/o

thanks for any input

joey
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Old 01-12-2011, 12:12 AM   #548
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Originally Posted by joeymdz View Post
sorry i couldnt find the discussion but when the car coggs/lags/pauses off the line is it due to being over geared?

i didnt have an issue until the main.. i tq'd and in the main i cogged off the line. i caused a pile up so it was a restart. on the second start same issue. the only thing i changed was the battery pack for the main (i am a believer now that my SMC has nothing on my thunder power). would the battery pack be an issue? like i said the only thing i changed was the battery pack.

wgt 1s w/ boss 10.5. geared 88/36=64.26 r/o

thanks for any input

joey
I suspect it is the sensor wire. Try another one
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Old 01-12-2011, 12:52 AM   #549
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Quote:
Originally Posted by joeymdz View Post
sorry i couldnt find the discussion but when the car coggs/lags/pauses off the line is it due to being over geared?

i didnt have an issue until the main.. i tq'd and in the main i cogged off the line. i caused a pile up so it was a restart. on the second start same issue. the only thing i changed was the battery pack for the main (i am a believer now that my SMC has nothing on my thunder power). would the battery pack be an issue? like i said the only thing i changed was the battery pack.

wgt 1s w/ boss 10.5. geared 88/36=64.26 r/o

thanks for any input

joey
Try the.sensor.wire but.also check that it.is.plugged in well. Wiggle eaxh plug a little with the ESC on and throttle neutral. If the.red.light blinks then you have a bad. sensor cable or the plugs are not working well: I sometimes slightly bend the pins in the sensor.plug to create a.better connection to the.plug. This.often solves.problems like what you are.describing.
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Old 01-12-2011, 09:20 AM   #550
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i completely forgot about checking the sensor wire! thanks

PS~ i know its in these pages some where but wasn’t there an issue for being over geared and it cogging

thanks
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Old 01-12-2011, 11:12 AM   #551
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Default OVER GEARED

I dont know what motor your running but 62mm rollout seems very high for 10.5 .
I run a Novak and a GM both 10.5 and run approx 56mm rollout. Wiggling the sensor lead is good advice and as mentioned if you get blinking lights there is your problem. ther good idea is to slight bend the pins on motor and Esc to give you a better contact. After fitting a little touch of shoo goo to keep every thing in place.
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Old 01-12-2011, 11:18 AM   #552
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^^ boss 10.5 (basically a tuned speed passion v3) and they do take more gearing for those motors.

yes i know its high (64mm roll out not 62) but with my times this is the best combo/consistency i found via lap times, temps, and overall feel.
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Old 01-12-2011, 01:32 PM   #553
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I was last saturday and sunday to a race but some of my clubmembers tried the BD on the indoor and outdoor track with a 17,5. on the outdoor also with a 13,5.

For what they told me the owner of the BD has orderd an other speedo.
He is now (as all the payments are don) a member of our club.
He was not happy to see that he was with his 17,5 way to slow indoor and outdoor. Indoor he could keep up with his 13,5 but he had to push till the limit.
Outdoor he was no match even not with his 13,5.

Our tracks are big out here and you need a Turbo.
They tested it against a Tekin and a GM. Tekin and GM were to fast on the straight.
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Old 01-12-2011, 10:57 PM   #554
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Question on Drag brake:
I set my drag brake max 50 percent and doesn't seem stronger like my tekin...
I'm running 17.5 D3 motor in my TC..Thanks
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Old 01-13-2011, 02:35 AM   #555
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Question on Drag brake:
I set my drag brake max 50 percent and doesn't seem stronger like my tekin...
I'm running 17.5 D3 motor in my TC..Thanks
Tekin has natural Drag, you will never get the same feeling on this speedie im afraid. But i dont know why you would, The tekin when it has too much drag boggs down in the corners, the BD will just keep up the corner speed Its also because of the difference in gearing on both speedo's.
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