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-   -   Weight distribution (http://www.oople.com/forums/showthread.php?t=28392)

madwestmo 06-08-2009 12:47 PM

Weight distribution
 
Hi,

I have both a mad rat and a xpro and have been racing with both several times now , as of yet i have not added any weights to any part of the car, as im kinda new to 2wd off road im not really sure where to start with the weights

Could someone maybe use photoshop or something similar to draw on this picture (thanks dcm! :)) of where to place the weights and how much weight ? if anyone could do this it would be great help to me and to anyone else that checks out this forum for a guide :)

Thanks !

DCM 06-08-2009 12:50 PM

Currently, I have about 40g on top of the servo, and only about 20g at the rear, in front of the gearbox.

madwestmo 06-08-2009 12:57 PM

you place the weight at the back on the battery strap or that gap between shock tower and gear box ?

DCM 06-08-2009 01:04 PM

in the battery tray, between the battery and the rear of the chassis

stampede vxlboy 06-08-2009 01:52 PM

i am new to racing .what does it have to weight the madrat with no battery .:D

Nick Goodall 06-08-2009 02:04 PM

Are you going to be running Lipo in the car?

I have only run mine once with Lipo, Brushless and NO additional weight, it's clear to see straight away that it needs some weight adding - Even just to bring it up to the "legal" BRCA weight let alone to sort the handling.

The car seems very front light so as DCM says at least 40g on top of the Servo and possibly some weight in the little sections either side of the servo - Also a thin Brass or weight strip under the cells should be an option (assuming you run Lipo) but yeah also some weight at the rear - possibly 10/15g either side in the rear quarter if you like, if you can squeeze any in there.....

The main thing is other then the servo, keeping any additional weights as low as possible in the car.

DCM 06-08-2009 02:09 PM

I am waiting for the alloy bulkhead, with the brass weight in it, then I might melt some led into the chassis at the front too.

I don't want to add to much weight in the rear, as it is very Losi like, loads of rear grip.

madwestmo 06-08-2009 03:29 PM

the car needs to be around 1500g?

Tom3012 06-08-2009 05:26 PM

Quote:

Originally Posted by stampede vxlboy (Post 272297)
i am new to racing .what does it have to weight the madrat with a battery or not .:D

Thats what i thought :confused:

stampede vxlboy 06-08-2009 06:22 PM

does it have to weight 1550 i put 2 10g on and 5 on the servo. and the little triangular bit 2 *5. and 2 *10 and 2 *5 were the battery strap start were the hole are . its there enough weight on it our not ?:confused:

stampede vxlboy 06-08-2009 06:56 PM

i got it to weight 1350 :(

jim76 06-08-2009 06:58 PM

too light, 2wd is around 1480?

DCM 06-08-2009 07:10 PM

Quote:

Originally Posted by stampede vxlboy (Post 272409)
i got it to weight 1350 :(

is that with or without battery.

stampede vxlboy 06-08-2009 07:16 PM

without a battery :thumbsup:

DCM 06-08-2009 07:30 PM

ffs, you got to weigh it WITH the battery in!!

stampede vxlboy 06-08-2009 07:43 PM

with a battery 1558 :thumbsup:weights

jim76 06-08-2009 08:05 PM

then that will be plenty heavy enough!

Nick Goodall 06-08-2009 10:52 PM

Yep sounds about right, usually a heavier car is a bit easier to drive (to a certain degree obviously) but it should at least stop it being twitchy and unpredictable.

budgio 07-08-2009 04:25 PM

i,ve ordered the brass battery tray i,ll weigh it when it gets here.
TU0228 BRASS BATTERY TRAY 615G 11.00

jim76 07-08-2009 06:25 PM

where from?


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