View Full Version : Jammin truggy conversion
glassdoctor
08-22-2006, 04:04 AM
Here's the first pics of my bl truggy. Details later....
I plan to do some serious testing with this thing pretty soon, along with my bl 777 buggy.
glassdoctor
08-22-2006, 04:05 AM
flipped center diff and motor mount plate... and a place to stick the batteries. That's about all there is to it.
glassdoctor
08-22-2006, 04:06 AM
one more shot...
cart213
08-22-2006, 08:41 AM
Is that your Neu 1512 motor? I'm very interested to see how well it pushes your truggy.
Sweet, are you getting good enough run times to race it in truggy saturday at haven? I guess I assume they will let you run it with the nitros.
glassdoctor
08-22-2006, 12:12 PM
Well I have only run it in my garage so far... but it's got some serious snap for donuts, at least. :)
Yeah that's the 1512... I would rather have a 1515 for the truggy but I think this will push it pretty good. And so far it had been very very effecient when I ran it in the buggy. It's awesome, I think... but I havent' raced it yet so we shall see...
nicholcgn
08-22-2006, 02:32 PM
I am interested in a conversion but I have not seen anyone that can say what will give them consistent long run times. Let us know how it runs. How long you can get. If they can get to where I can run a 15 min main no issues perferably 20 then I could club race and it would be a blast.
glassdoctor
08-23-2006, 12:27 AM
That's exactly the goal with this project... kickin a$$ in a truggy race.
I think the key is going to be the motor... finally long run times and no thermals. So I am dropping a wad on a high end Neu motor for my buggy and truggy.
So far I have one Neu and have a couple test/bash sessions with it. I am very impressed so far. These motors are awesome, they run cool and are effecient so run time and esc temps are a lot better it appears SO FAR. Note that I have not done enough testing, and I have not raced it yet. I will know by next week.
I have a race on labor day if all goes as planned and I'll know a lot more after that.
Let's just say I am pumped and I think this is it.... my main concern at this point is back to the speedo. I have a Mtroniks Truck and a Mambamax I'm testing now, and I might have a Quark 125 in time for this race.
I think the best bet will be the 125 with a fan on it but I don't have one yet.
Once we get the Mamba Monster then I have no doubts I could race hardcore infinitely.... can you say hour mains and bowling trophies? :)
cart213
08-23-2006, 09:02 AM
How are the controller brakes working out for you? I'm working on a truggy conversion and am trying to decide whether or not to keep the mechanical brakes. I think I will at first to see how well they work. I'd like to reduce the stress on the Quark 125.
glassdoctor
08-23-2006, 11:09 AM
I haven't raced it so.... don't know. I have never used mech brakes and I wouldn't know if a thermal problem (if there is one) would be fixed by doing that.
I know it would take some heat off the controller... they guys at Hacker/Quark run mech brakes on their car for thei reason. BUT, they do still have a thermal problem.... so figure that.
Personally I don't ever plan to use mech brakes. If we have to resort to that we may as just run it nitro, IMO.
I know of at least one guy who has raced a setup like this (neu and 125b) in a truggy and had no thermals. So I think this can work.
My $.02 is ditch the mech brake... you could always try to refit it as a last resort. If the motor mounts like my truggy I think the brakes would fit w/out a prob.
Quark is out of the 125s... I will have one as soon as they get some in.
Thanks for the show and tell last night, the truggy looks like its going to be fine, the buggy is insane, never seen an 1/8 scale drift on concrete before! I am not sure which I like better, the clearance of the truggy would be fun for bashing but that buggy was SO fast. Hope the mamba took em down in the main last night so they can be ready for sunday lol.
neweuser
08-24-2006, 04:38 PM
Glassdoctor. Mike runs a 1515 with a qaurk 125b on 4s Lipo and beat all the truggy's (nitro) at the bash. 15 min main. no thermal at all. he also ran it for about a half hour i believe with no issues TRYING to thermal....and didn't. So the Neu is highly efficient
tcolesen
08-24-2006, 05:24 PM
glassdoctor, do you mind if I replicate your battery mounting method on my new 1/8 buggy conversion? That's an excellent way to mount the batteries, and it would work perfectly for me.
Another thing that's interesting is that my motor ended up in the same place (forward left) as yours. I've seen some other conversions that have the motor in the same place. I can't tell from your pictures, but is your ESC mounted above the diff? That's where mine is - I made a special mount (aluminum) for the Mtroniks Truck that will allow ultimate cooling.
glassdoctor
08-24-2006, 11:56 PM
I really like both layouts on my buggy and truggy... if you like it do it.
I have the esc above/ in front of the center diff right now. I have also had it mounted on the chassis next to the motor. I like it there but the chassis is balanced a little better with it mounted in the center like it is now, even though it is up kinda high.
Actually I would like to put the esc on a top plate above the batteries to get a few more ounces in the rear... but I haven't got a chance to try it yet and it might make the motor wires longer than I want.
About the l-angle battery things I made.... I have a velcro strap thing (kinda like the gorillas straps) that works awesome for it but I only have one and I don't know where it came from. I'm sure it's made for bundling rope/hose/wire etc... and I can probably find them at home depot or somewhere like that.
tcolesen
08-25-2006, 12:14 AM
D'oh, I just noticed the ESC...
About the velcro strap thing, is it the black plastic piece connecting the two pieces of velcro?:
http://gorillamaxx.com/images/g2005-st-2.jpg
glassdoctor
08-25-2006, 12:11 PM
Yes...
The strap I was referring to is different than the gorilla ones but it's the same idea. I'll get a pic of it later...
The gorilla strap in the truggy pic is not complete... it's just the main piece laying there. I think I do have proper pics of them in my buggy in the "Mtroniks truck just a pro" thread.
The gorilla ones are bolted to the chassis or brackets so they don't need the slots like I made in those brackets. But the slots will allow about any type of velcro strap to work somehow.
glassdoctor
09-10-2006, 01:31 PM
If anyone makes a battery bracket with slots in it like this, there are cheap velcro straps that work great. I got them for $1.99/pair at the local home improvement warehouse. Velcro brand cinch straps :)
glassdoctor
02-08-2007, 01:05 AM
Here's a quick video I just got... jumping like 15-20 feet in the air.. hee hee
http://www.youtube.com/watch?v=YwnFHlkmxBY
Rufus
02-08-2007, 01:41 AM
Hey, great vid! I can't wait to see a video of your truggy at a track :)
glassdoctor
02-08-2007, 01:58 AM
Thanks... Here's the rest of the footage I got from this morning. Hope to get better footage soon.
http://www.youtube.com/watch?v=Zbu5koAjscc
8 degrees outside=one cold bash session, I only saw it in mock up stages before, it looks good to go now, I hope to see it least once next summer at haven.
glassdoctor
02-08-2007, 11:15 AM
Here's more recent pics of the truggy... ready to roll minus rx.
looks like you made the brace for the rear of the motor like you had on the 777 that day at haven, the truggy was flexing the temporary motor mount and wearing the pinion gear the day I saw it in mock up mode.
jamesbernatchez
02-08-2007, 12:33 PM
Hey Glass,
Im thinking about going through with a conversion to a truggy/buggy. I think we talked before but I cant remember what you said you used for the motor mount. I would probably run the Neu and Mamba combo aslo. Another question I have is how are BOTH of the batteries running off of the mamba max? Thanks bro.
James
glassdoctor
02-08-2007, 01:13 PM
JDT... yeah that day at haven was with a "mock up" plastic motor mount. It's all good now.
james... I've been using thick carbon fiber for motor mounts. What I have is 3mm so I used two layers, glued together.
The battery is just a big saddle pack. Each brick is a 2s pack, and they are wired in series just like you would do with an old school saddle pack. (like for my XX4)
So really the Mamba only sees that it's a 4s pack... doesn't matter what form it's in.
8 degrees :eek: nice
We've been around the same temps for about a week, less snow.
Thats insane.
Where can you get a conversions? I have a complete CRT roller that could use a good Brushless system :).
Nice! I like how it ends with the truck hitting you. It's got to hurt when it's 8 degrees. I did something like that myself the other day, just about took me down! By the way do protect the MM in the snow at all, or just don't worry about it?
tcolesen
02-10-2007, 11:20 PM
The MM has a water-resistant coating. It should be fine.
glassdoctor
02-11-2007, 01:44 AM
Yeah it should be fine... but I did wrap things up in a rubber glove, because I have the ubec stuck to the MM and it's NOT waterproof. Same with the rx.... wrap it up in a balloon, etc best you can.
Then clean out all the snow and crap as soon as you can just to be safe. Then you can tell how well your waterproofing worked too. ;)
I have a new vid to post of my buggy... racing today.
I did see the race video with your brushless powered buggy. It was extremely insperational!
Just wondering that race looks like it was held in an indoor track which didn't really unleash the true brushless speed. If this was held on an outdoor track with long straightways would it outrun the nitros in these conditions with the same 4s configuration?
Key-you are right about the not being able to unleash it part, although I have not seen the losi version I was impressed when I saw his old mtroniks, modified hacker motor and twelve cell 777, later I saw him with the mm, neu and 4s installed in the 777 and I was blown away just seeing him playing in the parking lot of the LHS, even geared up for 60mph it had incredible power, able to drift on cement with ease, amazing donuts to.
Are these kits or custom?
Any links for info about these conversions?
Thanks
glassdoctor
02-15-2007, 11:29 AM
Custom.. but I am working on some CNC motor mounts right now so to make the conversions easier.
Actually a smaller track is nice because you don't need to gear as tall to run with a hot nitro car. But yeah... the power and speed is ther to match the nitros no problem. WHat I found on the big tracks though, is that it sucks more battery due to more time on full throttle. But I have only got to run once on a big track so far. Most around here are small to medium size.
There is some CRT info in this thread ;) and some 8ight info here
http://forums.radiocontrolzone.com/showthread.php?t=226163&highlight=glassdoctor
and lots Kyosho info on mine and RRocket's here (old thread)
http://forums.radiocontrolzone.com/showthread.php?t=183460&highlight=glassdoctor
Also check here:
http://www.rc-monster.com/forum/showthread.php?t=5572
GD - I may have missed it in a thread somewhere but are there any pics of your 777 buggy with the neu motor and 4s battery config?
By the way any reason for chosing to go saddle pack on the kyosho (2s+2s) versus a straight single pack (4s) on the losi?
Thank glassdoctor, I appreciate the info and links.
glassdoctor
02-16-2007, 10:13 AM
I like the saddle pack layout because it will always be balanced, no matter what battery or motor is in it. The motor is up in the air, but the batteries sit really low, even with 4s 8000mah.
The Losi drivetrain doesn't allow for the saddle pack... the rear driveshaft is off the the side. So the single pack is the only good way to do it, imo. I like the single pack for simplicity... esp if you want to race and need to do a pit stop and change packs. An 8000pack is good for a 30min race though... I have never had to run more than that.
Here's pics of the 777... back when the Mtorniks and Hacker were in it, with fans and no packs. I found another pic that shows the packs in it, with the MM and Neu motor.
http://forums.radiocontrolzone.com/attachment.php?attachmentid=65579
http://forums.radiocontrolzone.com/attachment.php?attachmentid=65576
What an amazing duo! thx for the pics and links Gd.
I like the sadle pack and driveshaft setup on the triple7 far better than the one on the losi.
I see the little green beast hidden in the corner. The MM can handle 4s for sure but can it handle 4pole motors smoothly? THe reason is I keep hearing recommendations that the Quark monster pro is a better choice for 4poles on large applications. Well, with your experience what is your opinion?
glassdoctor
02-17-2007, 01:45 PM
Right now there is an issue running Neu motors like I have. Check out RotaryRocket's car with the sweet blue Plettenberg motor... that's a 4 pole I believe, and he reports no problems with the MM. So I would go with the Pletty for now. Hopefully CC gets the MM update so the Neu work better.
Don't forget that you need to bypass the MM bec and use a separate bec device for 4s.