Is my xxx-s G+ really that heavy?

[rich_p]

Weighed my xxx-sG+ last night and it came out at 1600grams. Are they usually that heavy or are my scales dodgy? When I raced my old sst I always had to add loads of weight. My losi is about 150 grams heavier!

[Oliver]

My XXX-S G+ with GP3300s, Novak TC2, motor, servo and "standard"ish 40mhz Rx and personal transponder comes in about 1490g with Foams, and up to 1530g with rubbers.

My old standard XXX-S weighed near to 1600g...

[rich_p]

Maybe i'll check on another set of scales then.
As im not running a personal transponder, I have a sanwa micro receiver and my speedo is smaller than yours.
Or maybe I just have a chubby car!

Theres not really a lot I can do to reduce the weight either is there? as it has all the ti bits on it as standard

[gingapaint]

the graphite material used in the suspension components is a bit lighter, and witrh considerable use of these throughout the car, could be part of the reason for the weight increase.

if you have a look at some of the top american's car (BK in particular) you'l see they've gone to quite extreme measures to reduce weigh... look cool too :D

[LisaKeen]

Right I weighed my g+ the other day in race trip, with rubbers and transponder and it came in at, 1575g, so take of the transponder, down to about 1550g and I have 25g of counterbalance wight in as well so 1525g with rubbers, 3300's, p2k2 and heat sync, and a relatively heavy multiplex servo. So pretty good.

So what have I done, not allot really, I have a different bottom plate which has been specially made,
http://blrccc.users.btopenworld.com/Feb28244.JPG

Milled out the battery bar,
http://blrccc.users.btopenworld.com/Feb28233.JPG
http://blrccc.users.btopenworld.com/Feb28236.JPG

And now have a teny, tiny ESC a GM SX9
http://blrccc.users.btopenworld.com/Feb28246.JPG

One think you need to look for in trying to save wight is to take it of high up so it lowers the centre of gravity. Also another thing to look for with running rubber tyres is to, if you can run foam inserts. My Friend who regularly runs rubbers in stock on carpet found about 20g of difference between molded and foam inserts per set, which is quite a saving.

The shell make a big difference as well, especially these new ones with the heavy rear wings with the plastic uprights, and also the amount of paint you apply, andy thing up to and over 50g, just in paint.

If you are running indoors and can run foam tyres do so, as they weigh substantially lighter.

I do have some titanium screw in the car but will be changing the hole set over to alloy or ti when I can as the standard steel screws in the kit are very heavy and if you consider their must about 30 screws in the car weighing about what a gram each, so thats 30g in steel, alloy/ti half the wight, thats another 15g at least you will save.

As I shew before the equipment you run in the car can help allot, nowadays the esc's and receivers are getting quite small and light.

I know I have run on a bit but I hope it helps.

[LisaKeen]

Right just to make sure I was right I took a picture of the car on a set of scales, the car has rubber tyres on with a molded, insert, NO transponder, but dose have 25g of counter balance wight in, so in reality the car weighs 1532g so I was 7g out, :-[

http://blrccc.users.btopenworld.com/Feb28252.JPG

Another thing to think about is to weigh your motors, I just weighed a 17t in a bb can against the P2K2 I run on Sunday, the 17 weighed 181g and the P2K2 163g so 18g difference, thats allot.

My car in the picture above has a mod in not the stock I run last Sunday so may be a few grammes over what it was, but the car is still light for a G+

[Nick Hudson]

not to rub salt in the wound but my xxx-s g+ weighs 1428g with rubbers, novak xxtra RX (not small !!), KO 713 servo, personal transponder and loads of red ally parts on it. thats with 2000's and a 27t stock motor. with 3300's its up to 1460g. it has a full titanium screw set as well. The scales are digital and pretty accurate as far as i can tell (within 1-2g)

the best way to save weight is to look at your tyre inserts. next time you're in a model shop feel the weight difference between standard moulded inserts (e.g. take-off, sorex etc.) and the JB two piece foam inserts. you will be amazed at how much you can save. they also work really well on my car with sorex 24R's and proline wabash 24mm wheels on carpet.

nick

[rich_p]

the graphite material used in the suspension components is a bit lighter, and witrh considerable use of these throughout the car, could be part of the reason for the weight increase.



If the components are lighter why would the car be heavier?