RCCrawler Forums

Drey · 03-20-2009, 09:39 AM

Has anyone tryed attaching weight to axles or suspension arms rather then adding to the wheels. I would be of the frame of mind that you would still see the weight benefit. Balanceing the rig and a lower CG. But I think the main benefit here would be a reduced rolling mass which would result in longer drivetrain life and longer run times.

Drey · 03-20-2009, 08:13 PM

Any thoughts on this guys?

wearethebucs · 03-20-2009, 08:16 PM

It could work...You would just have to try it and see. I still think weight directly on the rims gives to most pressure on the ground.

MCSCOTT · 03-20-2009, 08:21 PM

I personally prefer adding it inside the tires, because there's more room for weight that way. Several people add it on the axles though. Anywhere that works is fine. It might cut down on wear and tear on the drivetrain a little, but in the long run weight, whether it's on the axle or on the tire, is going to put a strain on it either way. The way I look at it it's better in the tires in some ways, because for one thing you're putting it right exactly where it needs to be since the tires are what sits on the ground. Also, my outlook on it is if you say for example your rig falls off a bluff and lands on the tires. The weight is in the tires, so the weight is hitting the ground. Nothing else is harmed when most of the weight is in the tires. If the weight is on the axles or links, when the rig hits the ground that weight puts pressure on what it's sitting on.

Either way parts are going to wear and break over time, so to me I would just rather put it in the tires.

wearethebucs · 03-20-2009, 09:01 PM

At my LHS there was a guy who had sheets of lead about 3/16" thick. He was wraping it around everything he could and molding it to everything. I think it weighed around 20 pounds, but it could go about anywhere. You could almost run the thing up on two wheels around an off camber section.

Flash · 03-21-2009, 09:41 AM

Weight can be beneficial and harmful as well. The upside would be a more stable rig, climbing, sidehilling etc. The downside is it puts more load on drivetrain parts. I took out my wheel weights and noticed an improvement in traction etc. You just need to play with link geometry.

Daniel3507 · 03-21-2009, 09:51 AM

how do you attach the weights? i had thought you might add them to the inside of the tire but i dont know how that would work with the memory foam inside them. any pictures maybe to help?

Osco · 03-22-2009, 08:24 AM

I used 4 oz stick on strips (self adhesive)in each front wheel and balanced them
the memory foam over that,I hope they hold.
I should have wrapped the wieghts with electrical tape to make shure
I just built my first scaler(sxc10) Nimh in back, works well and feels balanced.

ultimate_monkey · 03-22-2009, 01:32 PM

Quote:

Originally Posted by Osco

I used 4 oz stick on strips (self adhesive)in each front wheel and balanced them
the memory foam over that,I hope they hold.
I should have wrapped the wieghts with electrical tape to make shure
I just built my first scaler(sxc10) Nimh in back, works well and feels balanced.

they should hold just fine, dont forget the stick on weights get used on 1:1s all the time and they see alot more speed and bumps then your rc will and they dont come off, i have them on 1:1 and i dont think your RC will compare to 100kmh down a loggin road.. even if they do come off the memory foam will still be holding it in place kinda, dont think you would ever notice

See65 · 03-22-2009, 02:01 PM

I have been using lead rope used to make fishing weights and wrapping the wheels with it and it works pretty good and stays put.

hoyt · 03-22-2009, 03:01 PM

Quote:

Originally Posted by Osco

I used 4 oz stick on strips (self adhesive)in each front wheel and balanced them
the memory foam over that,I hope they hold.
I should have wrapped the wieghts with electrical tape to make shure
I just built my first scaler(sxc10) Nimh in back, works well and feels balanced.

osco i got scx 10 to, did u use 4oz in each wheel, running bat pack in rear like u also, how much of a difference in performance did u notice

Osco · 03-24-2009, 04:03 PM

Hoyt the 1.9 wheel channel was too narrow for the 1/4 oz weights
to fit inside so I turned them sideways across the wheel slot.
I used Great Planes self adhesive weights
1/4 oz(7g) marked segments 24 pcs. part # GPMQ4485
I got 2 packs and Used a full strip plus 4 pcs in each wheel.
Front wheels only and had the smallest of space between the full
strip and the 1 oz piece, I broke the full piece in two and they fit nice.
I eyeballed the three spaces and they balanced just fine for our speeds.
As for chassis balance,,with the whole truck In run configuration
with 6 cell nimh onboard I used one finger directly under the tranny
case and it balanced (I was after a 50/50 F/R):XD

And Hoyt as far a difference in performance,,this was my first scale build
and the weights went in ,,never ran without them
P.S. Did anyone notice how cool this Axial is ??????

BigB_117 · 03-24-2009, 04:12 PM

I've seen guys with stick on weights all over their front axle, or sometimes piled on the servo.

Usually it's because they wanted to add a little and were to lazy to take off the tires. Or wanted to add some weight mid comp.

IMO, it's kinda ugly.

Osco · 03-24-2009, 04:12 PM

Drey as for run time,,,not an issue
Tamiya 27turn mabuchi silver can,,,stock pinion
$25 radio shack nimh (3300mah)Part # 23-319
At 25 minutes i stopped the truck and BTW more than half of this was
at WOT,,wanted to work on my body
and discharged the nimh at 12 amps for about 8 minutes.

Besides,,,scale,,I wanted the lead hidden XD
P.S. Did i remember to ask If anyone thinks this truck is sweet ?

03-20-2009, 09:39 AM	#1
Drey Rock Stacker Join Date: Mar 2009 Location: Early, Iowa Posts: 95	Adding weight Has anyone tryed attaching weight to axles or suspension arms rather then adding to the wheels. I would be of the frame of mind that you would still see the weight benefit. Balanceing the rig and a lower CG. But I think the main benefit here would be a reduced rolling mass which would result in longer drivetrain life and longer run times.

03-24-2009, 04:12 PM	#14
Osco Rock Stacker Join Date: Jan 2009 Location: Riverview Posts: 60	Drey as for run time,,,not an issue Tamiya 27turn mabuchi silver can,,,stock pinion $25 radio shack nimh (3300mah)Part # 23-319 At 25 minutes i stopped the truck and BTW more than half of this was at WOT,,wanted to work on my body and discharged the nimh at 12 amps for about 8 minutes. Besides,,,scale,,I wanted the lead hidden XD P.S. Did i remember to ask If anyone thinks this truck is sweet ? Last edited by Osco; 03-24-2009 at 04:15 PM.

03-20-2009, 08:13 PM	#2
Drey Rock Stacker Join Date: Mar 2009 Location: Early, Iowa Posts: 95	Any thoughts on this guys?

03-20-2009, 08:16 PM	#3
wearethebucs Newbie Join Date: Jan 2009 Location: Buckhannon Posts: 37	It could work...You would just have to try it and see. I still think weight directly on the rims gives to most pressure on the ground.

03-20-2009, 08:21 PM	#4
MCSCOTT Rock Crawler Join Date: Aug 2007 Location: Columbia, TN Posts: 813	I personally prefer adding it inside the tires, because there's more room for weight that way. Several people add it on the axles though. Anywhere that works is fine. It might cut down on wear and tear on the drivetrain a little, but in the long run weight, whether it's on the axle or on the tire, is going to put a strain on it either way. The way I look at it it's better in the tires in some ways, because for one thing you're putting it right exactly where it needs to be since the tires are what sits on the ground. Also, my outlook on it is if you say for example your rig falls off a bluff and lands on the tires. The weight is in the tires, so the weight is hitting the ground. Nothing else is harmed when most of the weight is in the tires. If the weight is on the axles or links, when the rig hits the ground that weight puts pressure on what it's sitting on. Either way parts are going to wear and break over time, so to me I would just rather put it in the tires.

03-20-2009, 09:01 PM	#5
wearethebucs Newbie Join Date: Jan 2009 Location: Buckhannon Posts: 37	At my LHS there was a guy who had sheets of lead about 3/16" thick. He was wraping it around everything he could and molding it to everything. I think it weighed around 20 pounds, but it could go about anywhere. You could almost run the thing up on two wheels around an off camber section.

03-21-2009, 09:41 AM	#6
Flash Quarry Creeper Join Date: Mar 2008 Location: Huntington Beach Posts: 353	Weight can be beneficial and harmful as well. The upside would be a more stable rig, climbing, sidehilling etc. The downside is it puts more load on drivetrain parts. I took out my wheel weights and noticed an improvement in traction etc. You just need to play with link geometry.

03-21-2009, 09:51 AM	#7
Daniel3507 Newbie Join Date: Mar 2009 Location: Tulsa Posts: 29	how do you attach the weights? i had thought you might add them to the inside of the tire but i dont know how that would work with the memory foam inside them. any pictures maybe to help?

03-22-2009, 08:24 AM	#8
Osco Rock Stacker Join Date: Jan 2009 Location: Riverview Posts: 60	I used 4 oz stick on strips (self adhesive)in each front wheel and balanced them the memory foam over that,I hope they hold. I should have wrapped the wieghts with electrical tape to make shure I just built my first scaler(sxc10) Nimh in back, works well and feels balanced.

03-22-2009, 02:01 PM	#10
See65 Rock Crawler Join Date: Nov 2008 Location: Roseville,Ca Posts: 540	I have been using lead rope used to make fishing weights and wrapping the wheels with it and it works pretty good and stays put.

03-24-2009, 04:03 PM	#12
Osco Rock Stacker Join Date: Jan 2009 Location: Riverview Posts: 60	Hoyt the 1.9 wheel channel was too narrow for the 1/4 oz weights to fit inside so I turned them sideways across the wheel slot. I used Great Planes self adhesive weights 1/4 oz(7g) marked segments 24 pcs. part # GPMQ4485 I got 2 packs and Used a full strip plus 4 pcs in each wheel. Front wheels only and had the smallest of space between the full strip and the 1 oz piece, I broke the full piece in two and they fit nice. I eyeballed the three spaces and they balanced just fine for our speeds. As for chassis balance,,with the whole truck In run configuration with 6 cell nimh onboard I used one finger directly under the tranny case and it balanced (I was after a 50/50 F/R):XD And Hoyt as far a difference in performance,,this was my first scale build and the weights went in ,,never ran without them P.S. Did anyone notice how cool this Axial is ??????

03-24-2009, 04:12 PM	#13
BigB_117 RCC Addict Join Date: Jan 2009 Location: Sebastopol CA Posts: 1,525	I've seen guys with stick on weights all over their front axle, or sometimes piled on the servo. Usually it's because they wanted to add a little and were to lazy to take off the tires. Or wanted to add some weight mid comp. IMO, it's kinda ugly.

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