b4 and lipo , weight ?

[charles08]

Hi.
I am racing lipos next week end for the first time and won't have much time to practice since then .
So i am wondering if you guys can help me on where i should put the weights in the car knowing that the lipos i 'll run are 260 gr ( Corally 4200 30c).
I don't have the heavier front bulkhead and i'll race it on carpet .

Thanks to all !

[Mike Hudson]

standard nimh cells weigh around 450-470g so when you use lipo you need to add a fair bit seen as your losing around 200g! Get some thin roofing lead if you can (quite a few people on this forum have plenty to sell at low prices if you don't know where to get any and cut out a rectangle the same length and width as your lipo (you can cut it with scissors easily!) and put it underneath the lipo and all should be ok, maybe drop a spring rate front and rear on the car aswell

[charles08]

Thanks mike !

I thought it was going to be something like adding 30 gr on top of the servo, 50 on the battery tray etc ...

Your solution looks very simple, i'll find some lead and cut it to get the 200gr back and put it underneath the lipo then.

Thanks again , cheers .

[Mike Hudson]

you won't get the full 200g back you'll only gain about 100g max but it's ok just drop down to a softer spring on the rear and maybe drop down to a softer spring on the front too or lighter oil and it should be ok,

[V-Rossi]

I fitted a lead plate under the battery of around 110gr and the car was planted with the standard Associated astroturf and carpet set-up.

[Zipper]

This is the latest set-up from the Associated website for a B4 running LiPo. I know they are trying to prefect a LiPo set-up without the need for adding lead. Maybe an ok starting point?

http://67.199.85.166/racing/setups/b...crcrc_2009.pdf

[zaquiz]

Originally Posted by V-Rossi

I fitted a lead plate under the battery of around 110gr and the car was planted with the standard Associated astroturf and carpet set-up.

Where can I find lead plates that fit the B4 & B44?