SX lipo pack?
 

Ordering two of these for my Lipo cat.

http://www.racing-cars.com/products.asp?recnumber=26487

Does enyone else use them, from what i can gather i recon they will fit.

but does anyone run these packs?

23.5mm tall.

They should be fine - they are flat bottomed. I have a pack, but haven't actually tried it in my cat.

They are flat bottomed. i have made a mock up battery out of some high dence foam at work. seems very tight.

hi Matt, so i could be sure, please could you try them in your cat, i have just bought the cat SX lipo so its all standard gearing.

also could i be cheeky and get you the give the size of your battery in MM to see how it compares to the internet sizes.

cheers.

I was going to get them, but if you use the Nortech Racing LIPO retainer I reckon it'll be too tight. So I'm going for the Speed Passion with a new chassis

only just got the car, half way through building it so really want to keep the bottom deck i have and use the lipo retaners shumacher supply.

alot of the batteries on the brca list are around the 23.5mm mark so hopefully they will be ok.

i have them, they fit fine under the belts. All lipos don't have much clearance under the belts.
I also have the nortech lipo retainer which is ACE! and they fit fine with that.

they are also damn good cells and cheaper than the speed passion and nosram equivalents

I haven't checked what the specified sizes are, but have measured my own pack. 138.9 x 46.3 x 23.2.

They fit perfectly well in my Cat.

thank u for the replys, put my mind at rest.

gotta get some time to finish building it now :woot:

What motor are you running? I think the GM problem for me is that I'm running a slower motor resulting in the pinion in the way etc.

Mikey, not sure what you mean - the GM and the SP are basically the same size - only real difference being that the GM is flat bottom and the SP has the locations.

One other big difference - the terminals are the opposite sides - so don't get mixed.

I will double check as I could be wrong.

the GM pack does seem a millimetre longer than other packs. In mine it is a bit of a squeeze length ways.
If you ran a 7.5 with a larger pinion than a 23 then the lipo may be a tight fit against the motor.

Which is what I am running.

so run a smaller spur gear and alter pinon to suit moveing the motor further back away from the lipo

True..

this is exactly my problem now, i belive on a 10x2 brushed or 6.5 brushless (have not decided what to go for yet) i have been advised 21/83.

But all i can fit in is a 18/83 maybe 19/83 at a push.


im guessing il have to either go 20/80 (getting a scumacher spur)

or

Get the layshaft mod being sold on here and try useing small spur gears from accociated.

my problem is the battery fills the space (very colse to the purple post the R clip go's through, so cannot have the motor clamp too far towards the front of the car past the purple R clip post

i have added a pic of the 21/83 and its clearly visable how much the motor clamp is past the purple post.

im assuming most people have similar troubles as my batteries are very similiar to the length of other BRCA lipo stick packs.

how has every one got round this problem.....i hope its not just me.


PS JIM76, what size pinion and spur are u running?

Have you actually tried to fit the battery?? Because the motor clamp is narrower on the front edge so that it doesn't hit the lipo.

I used to run 21-83 all the time - currently 20-83 and all is fine.

just had a look at my cat exactly the same clearance! im running speed power 5300 no issue with room. get the cells in and have a try :thumbsup:

here is mine. with the gp 5000mah brac approved lipo.

10 double, 18 pinion and 83 spur. id be lucky to get a anything bigger on, with out hanging the lipo out the side, and then making it impossible to put the positive plug into the lipo through the purposly cut hole in the top deck.:thumbdown:

The picture above is excactly the same problem as i have,

as above the motor cannot move any further toward the front of the car because the battery is in the way.

18 is the largest pinion that can fit on a 83 spur.

Assume that's with the updated chassis?

updated chassis ? ? ?

Ive heard there is a new stiff chassis with holes in the bottom deck so the lipos with lumps cant fit. Mine is not the stiff one.

Is there another updated orignal style chassis then?

If so how would i tell if mine is updated or not.

No it's the stiff chassis I was refering to.. My mistake.

getting me worried then :lol: :lol:

mind u it would have been nice to know it was something as simple as needing a new chassis....

Which is what I've done. Gone for Speed Power with the new LIPO humps chassis (S1 order by mistake and Carbon on order)

again you must have your lipos too close to the centre line of the car im currently running a 84 spur on a 23 pinnion and still go bigger.

I said this before we can run 24 83 nps with vampire 5200 stick pack lipo in so you must have your lipos in the wrong place,

With the GMs do you have the Atomic Carbon LIPO retainer kit fitted?

see below

No lipo retainer kit fitted yet,

We have the lipo butted hard up against the LH front bulkhead and the back of the servo.

Also the positive hole on the battery lines up perfectly with the hole in the lipo top deck.

I cant move the battery sideways much as the belt would rub on the positive wire coming out the lipo.


i have not seen how others run there lipo packs but according to the manual (against the bulkhead and servo) and by looking at the hole in the lipo top deck the battery looks to be in the correct place?

hear is a pic with 18/83 gearing, and the battery toward to outside edge of the chassis, the positive wire coming out the battery is very close to the belt.

pic added

battery hole lined up,

mine fitts similar to your last picture, my motor clamp has a notch in it that the battery sits into, up against the motor, at 24 83 im am touching motor against battery

Have you checked the servo mounting as looking at the picture it to me looks like it's the servo pushing it out.

Difficult to tell from the pics.

Looking at your picture the lipo strap should be down the centre of the battery so that it covers the balance socket. Your pack is pushed way too far into the centre. I use Vampire 5200 sticks or Demon 5000 (now non brca legal) stick packs and they fit find. My motor clamp is way past the split pin holder for the lipo pack. I has the NiMh chassis which I have dremeled at the front for the Vampire racing lug to locate. You do need to have 4mm connectors that allow you to solder the wires so that they come out at 90 degrees to the male plug otherwise they will not fit under the top deck.

So the point of the new top deck with the hole is?

How can a set, now not be brca legal? Id be proper hacked off
if these gm's become not brca legal.:(

my battery strap is not quiet down the center of my lipo,but it is close than the picture above and my lipos don't touch my servo there is a gap in between of 4-5mm

They were legal only for touring car last year but the BRCA said that they would be grandfathered into the 2009 list but it was deemed to make them illegal as the wires come out of the pack on a different side according to the rules and therefore are now illegal. Yes I was miffed but I now put them into my 1/8th electric conversion where anything goes!

I personally do not like the new top deck and think that the Atomic carbon one gives you much more access. I usually put the negative in the pack and slide it in at an angle and then put the postive in and then put the strap on.

That is a flat bottomed lipo - and it is further "in" than it is intended to be in I think. The GM lipo connectors are closer to the centre of the pack that all the others i've seen.

You can see from your pic however, that the motor clamp is "skullpted" to effectively allow the actual motor to touch the lipo if necessary - that's kind of the idea i believe.

Personally, i've never been in any way interested in using the top deck with the hole in it, as i think it looks shocking!! but that's just a personal opinion! Remember - a good looking car will be a fast car!!

I brought that top deck to make it easier to plug the into the lipo, not for bling!:lol: what a waste of money,:thumbdown:


I can see that the motor mount is designed for this purpose, but for the aligning of the lipo and the hole it's not quite in far enough,

it's just a shame it's not perfect, But that the way things go!!

Thanks for all your input!! :thumbsup: