RCCrawler Forums

Harvo · 03-20-2008, 08:01 PM

So for 2.2 comp rigs, you want weight low and you want it balanced. It looks like a lot of people are running 7 cells split on each side of the servo. I have been tossing around ideas of how to get my 6 cell stick battery lower than the top of the steering servo and I came up with a possibility. I wanted to see if anyone has tried this first though.

A good belly height is around 2.5 inches. A stick battery is about 3/4" thick. If you raised the chassis about that height, bent your links to clear the battery at flex, and made some type of protection or slider plate to make the bottom of the battery slick... do you think the weight of the battery mounted on bottom would help more than the raised weight of the chassis would hurt?

Thoughts? Been done?

Robb · 03-20-2008, 08:08 PM

Gonna be hard to rig up on a shaftie.

HndsWthtShdws · 03-20-2008, 09:17 PM

Plenty of driveshaft clearance if you rearrange it to a 3x2 pack.

Harvo · 03-20-2008, 10:05 PM

Quote:

Originally Posted by HndsWthtShdws

Plenty of driveshaft clearance if you rearrange it to a 3x2 pack.

And that's what I am using. I checked it out and shaft clearance isn't an issue. (and that is with a comp wheelbase) Only link clearance, but that would be nil if I ran bent links. The only difficulty I see is trying to make it slick.

hairba11 · 03-20-2008, 10:33 PM

cut the side out of a 2L soda bottle. it won't help much for impacts, but for general sliding and abbrasion resistance, it works pretty well. nice and cheap too

Reflection · 03-20-2008, 10:43 PM

IMHO,you'll be better off performance wise and it won't cost much at all getting a 2/3a pack or a lipo to place on the front axle or the upper links.

If your links are set up close to being a good set up,they'll be parallel with the ground. Placing the pack on the upper links will be dang near the same plane as if the pack was under the belly. Doing that,your weight will be more forward and your chassis won't be raised up.

Harvo · 03-20-2008, 11:11 PM

Well... the reason I'm exploring this is because my crawler is a TLT Max Climber home made conversion. With my link/shock mounts on the front axle, I don't really have room for anything practical like that. I'm about to start my first "real" ground up crawler on which I hope to do the standard battery mount that most people use... but I don't want to abandon this beast. I'd like to take it to some comps and see how well I can do with it. For what it is... it does well.

03-20-2008, 08:01 PM	#1
Harvo I wanna be Dave Join Date: Mar 2008 Location: In the Dark Edges of your Mind Posts: 6,386	Lowest Possible Battery So for 2.2 comp rigs, you want weight low and you want it balanced. It looks like a lot of people are running 7 cells split on each side of the servo. I have been tossing around ideas of how to get my 6 cell stick battery lower than the top of the steering servo and I came up with a possibility. I wanted to see if anyone has tried this first though. A good belly height is around 2.5 inches. A stick battery is about 3/4" thick. If you raised the chassis about that height, bent your links to clear the battery at flex, and made some type of protection or slider plate to make the bottom of the battery slick... do you think the weight of the battery mounted on bottom would help more than the raised weight of the chassis would hurt? Thoughts? Been done?

03-20-2008, 08:08 PM	#2
Robb RCC Addict Join Date: Aug 2005 Location: VARCOR Posts: 1,826	Gonna be hard to rig up on a shaftie.

03-20-2008, 09:17 PM	#3
HndsWthtShdws Quarry Creeper Join Date: Jan 2007 Location: Ontario, Canada Posts: 341	Plenty of driveshaft clearance if you rearrange it to a 3x2 pack.

03-20-2008, 10:33 PM	#5
hairba11 RCC Addict Join Date: Mar 2007 Location: St. Louis (High Ridge) Posts: 1,279	cut the side out of a 2L soda bottle. it won't help much for impacts, but for general sliding and abbrasion resistance, it works pretty well. nice and cheap too

03-20-2008, 10:43 PM	#6
Reflection TEAM MODERATOR Join Date: May 2004 Location: Tennessee Posts: 10,855	IMHO,you'll be better off performance wise and it won't cost much at all getting a 2/3a pack or a lipo to place on the front axle or the upper links. If your links are set up close to being a good set up,they'll be parallel with the ground. Placing the pack on the upper links will be dang near the same plane as if the pack was under the belly. Doing that,your weight will be more forward and your chassis won't be raised up.

03-20-2008, 11:11 PM	#7
Harvo I wanna be Dave Join Date: Mar 2008 Location: In the Dark Edges of your Mind Posts: 6,386	Well... the reason I'm exploring this is because my crawler is a TLT Max Climber home made conversion. With my link/shock mounts on the front axle, I don't really have room for anything practical like that. I'm about to start my first "real" ground up crawler on which I hope to do the standard battery mount that most people use... but I don't want to abandon this beast. I'd like to take it to some comps and see how well I can do with it. For what it is... it does well.

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