View Full Version : Keep flipping Emaxx what do you brushless folks do?!
04-11-2005, 07:14 PM
When I run my 6 cell GP3300s I can't take turns at high speed whatsoever on the street without flipping my truck over. I mostly run in parking lots and my truck spends half it's time upside down...unless I slow down to a crawl practically. I have big bore shocks and stock springs with 60 wt. oil in the 2 most rear and 30 wt. in the rest. I even tried a Fullforcerc swaybar, their nice one and I think it made it worse. So I'm just curious how people control their brushless trucks, do you just stop the truck and turn it around every time?? Even if I do a high speed wide turn the truck flips. Do I have the suspension setup wrong? I've set the ride height so that the arms are pretty much parallel to the ground.
04-11-2005, 07:18 PM
I hear ya!
So I made a cheap solution
A wheelie Bar!! It made it my self using some turnbuckles some spur nuts, a shock and some airplane tires.
It works about 70% better then I could have ever thought it would. It has some articulation but its stiff and allows it to move with the terrian and works awesome.
04-11-2005, 07:28 PM
thats awesome man!
04-11-2005, 07:45 PM
Gotbling: That is awesome!! Unfortunately, I don't think I'm so talented to make something like that! VERY COOL. BTW, how do you like those aluminum arms? I just busted my first RPM arm after having it a week...and all I hit was an empty plastic trashcan. I'm thinking of going aluminum...I already have alum bulks and towers.
To get back on topic tho. When you turn how slow do you have to go not to flip over sideways? I hate having to slow down so much...and I'm wondering if that's just normal.
04-11-2005, 07:57 PM
Ty, Love the arms they are made by FLM. I pm'ed you about them.
The wheelie bar was easy! lol.
Anyways. You have to take wide turns or slow down to take a sharp turn. You'll get use to it. Try lowering your truck as much as possible for better stability. Maybe even a sway bar kit?
04-11-2005, 07:58 PM
I think you should lower it. If you already have it as low as stock will get, get some www.unlimitedengineering.com Knucklehead shocktowers. Nearly unlimited adjustability.....
04-11-2005, 08:07 PM
Hrm, are you a widemaxx suspension? I run narrow maxx combined with a low CG chassis, I typicly two wheel in hard cornering on pavement, but with my driving I don't find flipping problems. I'd lower it more if you can, remove all repload spacers, and lay the shocks out as far as you can.
If you still have problems, a low CG chassis is what you need.
This is my homemade one.
Very dangerous machine, I do need to use a heavy differential oil up front, as the inside front wheel is unloading. Right now I'm justu sing grease, but will need to go to a resistant oil as soon as I can.
The chassis I recommend you get, is the one from Xtreme RC Racing, it will likely be the best for road use.
04-11-2005, 08:44 PM
Gotbling: You have PM back!
Thanks guys, I'm gonna try and rip out the preload spacers and see where that gets me...maybe switch to some slightly stiffer springs to make up the difference if the truck sits too low.
I've already tried 2 different swaybar sets to no avail.
04-11-2005, 09:16 PM
I've read of people zip tying down their shocks so that the truck sits really low. You lose the suspension you need for off road, but it makes the truck handle great. Someone posted vieo of it before on rcpics with it normal and zip tied down. When it was zip tied it handled like a touring car (kinda).
04-11-2005, 09:18 PM
Originally posted by Enigma2U
maybe switch to some slightly stiffer springs to make up the difference if the truck sits too low.
Actually I noticed softer springs stop rollovers better.
04-11-2005, 11:28 PM
thats what i do with my trucks.
04-12-2005, 01:59 AM
Lower your ride height so you have level wishbones at rest, and stiffen the shocks a bit (go up 30wt or so in the shocks). This will keep it flat in the turns.
04-12-2005, 05:51 AM
a low center of gravity is the key. a good chassis like this http://www.rc-monster.com/proddetail.php?prod=GMX04-CH-AL&cat=11 will help alot. i can go down the road at 40mph and turn as much as i want without and wheel lift. also some road rage tires would help too. heres my setup. notise how low the batteries sit, that is the key.
04-13-2005, 10:14 AM
emaxx41900: Very cool looking! Looks more like a buggy than a monster truck tho.
04-13-2005, 12:44 PM
a low center of gravity is the key. a good chassis like this http://www.rc-monster.com/proddetai...04-CH-AL&cat=11 will help alot. i can go down the road at 40mph and turn as much as i want without and wheel lift. also some road rage tires would help too. heres my setup. notise how low the batteries sit, that is the key.
The chassis you linked to doesnt corner as well as the one you are running. May sound strange, but we have run all of them and compared them. The longer the truck, the more stable it is in the corners as well, just like you stated about having no wheel lift. The wheel lift is what starts the roll over, and the maxx is notorious for it. There is a pretty big difference between the two and their handling characteristics so I figured I would point that out.
also note- if you think I am saying this as a selling point, I do not have any, and have no plans to make any more of the one pictured above. That is the king of the track, nothing has ever come close.
04-13-2005, 01:36 PM
well outkast, looks like its a good thing i kept it. im never gonna sell it unless i buy your new truck. my chassis was worth every penny!
04-13-2005, 06:07 PM
your pm box has been full for a long long time.
04-13-2005, 06:29 PM
Enigma -- although everything everyone else has said is good advice, the easiest and cheapest way to go would be to put 50 or 60 wt oil in ALL of your shocks (not just the back 2, as you have); and move your lower shock mounting positions to the outermost holes.
This won't be as good as getting a Gorilla/Racebomb/Extreme chassis, but it will definately help. You should not have to slow to a "crawl" to make a turn, even at speed.
Also, make sure you have the proper camber in your wheels. I suggest running around 1.5-2.5 degrees of negative camber (i.e., the tops of the tires lean in) in your wheels... this will help reduce the folding of the tires' sidewalls in high speed turns, which can result in traction rolls.
04-13-2005, 09:48 PM
Btw, reason I recommend the Xtreme here, is it has no front kickup, which is more desirable onroad. I enjoy road driving, but as I race dirt, I run my own lower plate as pictured above. Same affect as the Gorilla or Xtreme, much lower CG. I would use an Xtreme Maxx setup, but I don't sue bulkheads, so things don't line up properly. :( I do plan on hopefully picking up an upper plate this week from them. I will be rnning my own lower plate however.
04-14-2005, 07:55 AM
Goinbroke: Thanks for the advice...I'll try that as well. I broke an arm on my truck so I'm waiting for a new set of arms to come in and then I plan on experimenting some more with spacers and shock oil wts.
04-15-2005, 06:29 PM
heres another view of it
I'm going to try to make it better looking and more practical. Although it works i'm not sure how bash worthy it is. I'm going to try to make something better.
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