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Old 12-24-2008, 09:27 AM   #391
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I'm the one who asked Novak to make the Booster and now I'm waiting on them to release the info on the specs and date it will be available. Hopefully they will have this info real soon. I will get in touch with them to see if there is any updates.
Thanks for the reply Danny!
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Old 12-24-2008, 09:27 AM   #392
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Danny,

what brand and gauge wire is used on the SMC 1C LiPo? I'm trying to find the same wire for my speed control. You know it all has to match to be fast LOL!

Thanks,

Josh
It's 14 gauge. No specific brand.
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Old 12-24-2008, 01:08 PM   #393
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The one major thing I have noticed is the window of getting a car to work with lipo is HUGE. You can take a car thats tweaked a lil and has chuncked or peeling rear tires and just never know it with a lipo car. Another real benefit for the class to attract newbies.
+ better tire wear!
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Old 12-26-2008, 06:43 PM   #394
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So I got my SMC pack in hand, and am looking at how to get it to work with the battery position system in the BMI 12RR. How much material is the case (Thickness) in the center valley between the two center cells and the battery itself? Just currious if I could take a dremel or a file and carefully just extend that valley to let the back sit better over the battery bar.
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Old 12-26-2008, 06:57 PM   #395
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Originally Posted by Clegg View Post
So I got my SMC pack in hand, and am looking at how to get it to work with the battery position system in the BMI 12RR. How much material is the case (Thickness) in the center valley between the two center cells and the battery itself? Just currious if I could take a dremel or a file and carefully just extend that valley to let the back sit better over the battery bar.
Wouldn't it be easier, and safer, to modify the battery positioner instead of the battery case?
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Old 12-27-2008, 12:36 PM   #396
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Originally Posted by Clegg View Post
So I got my SMC pack in hand, and am looking at how to get it to work with the battery position system in the BMI 12RR. How much material is the case (Thickness) in the center valley between the two center cells and the battery itself? Just currious if I could take a dremel or a file and carefully just extend that valley to let the back sit better over the battery bar.
Not sure what your trying to accomplish but it's very easy to damage the cells. The case is 1.5mm thick and the cells should be very close to the wall of the case.
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Old 12-27-2008, 01:28 PM   #397
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Ahh thats a bit thinner than I thought it may be. I was simply looking for a way to use the SMC LiPo pack in the same chassis configuration as 4 cell to make going back and forth easier. But I think its pretty clear that I cant use the O Ring cell retainer, or the battery holder with the SMC pack. Which is fine, I just need to buy a roll of tape
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Old 12-28-2008, 08:15 AM   #398
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In my DB12 I had to completely remove the battery positioner and make little aluminum locators to position the battery. It let the battery sit lower in the chassis and clear the shock.

I run a 2007 Sphere Comp speedo, 120 nimh receiver pack, all wires intact., and speedo switch OFF. I'm using micro Spectrum receiver, a JR3550 servo, and aHigh Velocity 13.5. 8 minute run I'll use 70mah on the receiver pack, no dumping or spongy feeling, plenty of rip the entire time. I'm currently rolled out about .15 less then I was with a 17.5 on nimh. I'm still getting a feeling for the gearing, but the power is nice.

My setup has evolved quite a bit. Just changing batteries made the car real darty and inconsistent. I've been working on mellowing the rearend yet trying to keep the new level steering. I think I'm getting faster because I'm learning to handle the car with each run.
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Old 12-28-2008, 12:45 PM   #399
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Danny,

I had the chance to run 1 Cell in my 1/10th oval car (standard oval pan car). It worked great.

For what it's worth:

Weight 34 oz with no lead and with a receiver pack. Speed similar to 17.5 4-cell using a 13.5 motor in the car. Rollout was slightly higher than 17.5 4-cell but there may be a better number with more trial & error. The car was my 13.5 car which is a middle of the road ride. I changed almost nothing except tires (softer right front and harder right rear).

Motor temperature never went over 125 and recharging took 1800 maH into the 4000 maH pack. I charged @ 6 amps. I used a 5-cell receiver pack and each run it took 30 - 40 maH to replenish it. I never tried without it but the pack voltage after a 4 minute run was 3.8 so I think you need one.

I realize this is the onroad thread but it looks very viable in oval to me.
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Old 12-28-2008, 02:05 PM   #400
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I know there has been some testing with mod motors - any update on which setup is making 8 minutes?
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Old 12-28-2008, 02:12 PM   #401
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I am also curious what kind of parity there is with 10.5T BL/LiPo and a 13.5T BL/4cell. Can the 10.5 make it reliably 8 minutes? (preferably 10 or 12 minutes in order to ensure no dumping and none of that stupid drama from years past where you couldnt take a hot lap before a race because you may dump before the end.)
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Old 12-28-2008, 02:45 PM   #402
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I thought the reason SMC went with "only" a 4000mah capacity is to get back to where you couldn't drive a mod 1/12 car strapped the whole 8 minutes. Myself being a long time 1/12 driver long for the days when there was strategy involved in mod 1/12 racing and the cars didn't go 100mph. How in the world did we race 1/12 back in the day with 1400SCR's and 1700SCE's
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Old 12-28-2008, 02:54 PM   #403
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I understand that, but since NiMH cells offer a certain level of performance already, if LiPo cant equal it - its going to be very handicaped to capture the market. Wanting the racing to go back to the old days just by limiting the advancement of technology and causing the same BS from back then isnt really effective. Also since most of us dont have LiPo cut offs for 1 cell packs... making a pack that will run dangerously low in a mod class is just asking for cell damage to happen.
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Old 12-28-2008, 02:57 PM   #404
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If I remember reading right it was Josh Cyrul that asked Danny to limit the pack to 4000mah, but what does he know
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Old 12-28-2008, 03:03 PM   #405
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Read post 381 as a 4.5 has been tried and worked for 9 minutes. A 10.5 will have no issues running 8 minutes as Donny Lia ran 14 minutes with a 13.5

Yes our goal was to slow mod down and keep the price lower. There is room left inside the case to bring up the runtime and C rate.

On the ROAR weight limit thread I mentioned that maybe we should do 17.5/1 cell Lipo and 8.5/ 1 cell Lipo as the expert class. So for those who think 17.5 would be to slow for them should race in the 8.5 class.
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