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Old 07-11-2009, 08:10 PM   #7606
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thanks guys
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Old 07-11-2009, 08:25 PM   #7607
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Originally Posted by Clegg View Post
If you find whats doing it, please post. I just looked at mine and noticed also that it doesnt perfectly re-center more to the side with the diff on it. I remains dropped down about .5mm or so vs the other side which remains .25 or less. I have taken off the dampening tubes, and wires from the motor and it still does it. I may just go and clean out/rebuild the pivot balls on the flex plates, maybe there is some crud in there binding it up.
I have mine apart and checked the L-plate thickness. One was .062 and the other was .066 on my thin set. I would bet thats why my pod leans to one side. Just checked my thicks and one set is .068 and the other is .070. But they are pairs so no worries.

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Old 07-11-2009, 08:42 PM   #7608
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ahh good call I just assumed they were all the same thickness... I should have known from the Tbar days that fiberglass is hardly ever consistent on its thickness. (unless you bought high end pre measured Tbars like PowerPush ones.)

I will measure mine up tonight.
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Old 07-11-2009, 08:49 PM   #7609
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Originally Posted by Clegg View Post
ahh good call I just assumed they were all the same thickness... I should have known from the Tbar days that fiberglass is hardly ever consistent on its thickness. (unless you bought high end pre measured Tbars like PowerPush ones.)

I will measure mine up tonight.
Jason and I talked bout this. He does sell them in matched pairs, so what I did was measure and label them with a sharpie.
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Old 07-11-2009, 08:59 PM   #7610
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To Khador12

Hello, Can you say me the dimensions of the Fantom battery? Have this battery Sub-C bulges? In the website there isnīt this information.
With this battery, Did you made any modifications in the chasis? Thanks.

Regards,
mAh: 5000 (18.5Wh)
Volts: 3.7v
Discharge: 40C Cont. 80C Burst
Height: 18.5mm
Width: 46.5mm
Length: 92mm

The bottom is flat on this battery. I did not make any changes to the chassis either.
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Old 07-11-2009, 10:31 PM   #7611
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Gadget, it was nice meeting you and your father.
Thanks man I had a good time out there. I really enjoy going to races all over when I can and putting down some laps I really gotta get me one of those air conditioned trailers to run my races from! LOL
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Old 07-12-2009, 12:59 AM   #7612
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Thanks man I had a good time out there. I really enjoy going to races all over when I can and putting down some laps I really gotta get me one of those air conditioned trailers to run my races from! LOL
You do that and you will have everyone wanting to learn how to run the computer
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Old 07-12-2009, 06:18 AM   #7613
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Well, he did not have to help run a computer here. He actually got to put down some laps. And as far as the trailer goes, their are people down here that actually use them to travel to races with so, they can have that cool pit area to pit in instead of being out in the heat and /or being warm when it is cold when it is winter.
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Old 07-12-2009, 12:31 PM   #7614
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More photos, the car is completed, the body is Black Art Audi R8C, from my old car, but only have a race in it, is in good condition for testing the car, i donīt can wait to race, i go to street and adjust the steering, a litle testing (my local track is closed for works) , and this is not a 1/12, iīm convinced this not a slot car, fast reactions and more planted rear, the steering are very precise, litle but good feeling.

Greetings, Luis C.
Attached Thumbnails
BMI's DB12R-p1010113-large-.jpg   BMI's DB12R-p1010115-large-.jpg   BMI's DB12R-p1010114-large-.jpg   BMI's DB12R-p1010117-large-.jpg  
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Old 07-12-2009, 02:08 PM   #7615
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So took the BMI out today to get some testing in.

We have a guy at the track who has a bit of a monster 1/12th that is running a 3 cell LiPo and a Castle Creations sensorless 380 size motor. the car RIPS... you can hear it spin the rears on take off from a corner almost every corner. Its quite brisk down the straights and weighs 40 - 60 gm less than my BMI.

With that said, fastest lap he ran on the current layout today was a 9.9 Sec lap. Fastest lap I ran today with the BMI-LiPo, 10.5T Vortex V.2, Novak GTB 4 cell, SMC 4000/25C pack wa sa 10.2 with most averaging 10.4 - 10.6. Getting near his time is a bit of an achievement, my goal is still faster.

I took an hour or so to get the car all aligned, ballanced, servo centered (within 1/4 of a mm - best I could with the tools I have), right height sorted, etc... The car ran with black front and yellow rear's.

I had a bit of push on throttle, but not bad, easily fast and not too nervous. I had a little issue of it wanting to traction roll around the big fast sweeper all through an 8 min run, I could defeat it by being very smooth on the throttle through that corner. I may stiffen the rear plates up just a bit.

THe car transitioned perfectly side to side, no drama. One of the easiest cars I have driven. I gave it to a guy who hasnt driven 1/12th in a few years and he is hooked now

The setup is:

BMI DB12RR-LiPo Chassis w/ SMC 1S 25C LiPo with custom leads.

Front:
Flat Servo in the forward position
Front kingpins lubed with some thicker bearing oil (seems to stay consistent longer than silicone)
.20 springs
5 Deg Caster block @ 4 deg position
-1 Camber
Neutral Toe (slight neg toe on compression)
Jaco Prism Black Foam @ 1.68"
4mm Ride height

Mid:
Gold Spring
Silvia Shock W/ 60 Weight oil
Darkside racing front shock mount at mid position (equal to about the med ball stud w/ 2mm shims position on the stock mount.)
4mm Ride Height
Standard RR Flex plates at the long position
Dampener tubes with 5000 weight diff lube in them

Rear:
4mm Ride Height
Jaco Yellow rears trued to 1.75"
Orion Vortex v.2 Race 10.5T BL
43 Pinion / 78 Spur

Total weight with a ProLine Standard weight 12b Body: 724gm.

Attached are some pics. (Note the body is just a testing body and a bit of a joke. I just needed to get the body painted so I busted out some highly visible Yellow and some stickers from my nitro days and put em on the car My real race body for the coming points series is going to be a pretty fancy paintjob by a guy at our track).
Attached Thumbnails
BMI's DB12R-p7110036.jpg   BMI's DB12R-p7110042.jpg   BMI's DB12R-p7110045.jpg   BMI's DB12R-p7110046.jpg   BMI's DB12R-p7110047.jpg  

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Old 07-12-2009, 02:53 PM   #7616
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Everything sounds good on your car buddy. The only thing i see on your car that can cause traction rolls is the location of your shock mount. Keep in mind that a longer shock will make the car tippy. If you move the shock mount back as far as you can and shorten the shock by adjusting the ballcups, you will see the traction rolling issue go away.
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Old 07-12-2009, 03:05 PM   #7617
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I'll give it a try, thanks!

Some folks are pretty impressed at the pace this BMI can lay down at the track today. There will probably be a few more BMI's running at my local track by fall I figure Having the only lipo spec chassis around really is a big selling point.
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Old 07-12-2009, 04:17 PM   #7618
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I'll give it a try, thanks!

Some folks are pretty impressed at the pace this BMI can lay down at the track today. There will probably be a few more BMI's running at my local track by fall I figure Having the only lipo spec chassis around really is a big selling point.
Thanks buddy. Let me know how it goes. Im running my DB10R this coming weekend with 1S lipo. I will let you guys know how it goes.
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Old 07-12-2009, 06:57 PM   #7619
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So Jason, Any thought of switching the BMI kit or offering that Darkside center shock mount on your site as an add-on? The two people I know with BMI's beside me have bent, broken off, or otherwise mangled the stock front shock mount many times. Resulting in retirements from the day of racing.


Since I went to this darkside mount I have had 0 issues with the mounting balls bending or breaking. Just seems to be a good fit for the car. I know the issue the guys I know who have had the issues have been frustrated. That is the only part on the car they have busted and it seems to happen from fairly mild wall impacts or something when using the tall mount or spacers under the mid mount.

Another thing that could help would be to offer the tall and med ball studs in Ti instead of Alloy.

Just my .02
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Old 07-13-2009, 06:30 PM   #7620
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The darkside mount is a nice mount as are many others. I wanted to include the AE one for weight savings. It is very adjustable also but the weight savings is really what i was looking for.
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