never heard of Relentless. Fighting Cock tastes great. in blind taste tests 4 out of 5 people chose it as the best tasting over Monster, Rockstar, RedBull, and Full Throttle. it is similar to all of them though. it has that "pharmaceutical" energy drink signature flavor. hopefully soon you will be able to order some off our website or through amazon.com and try it for yourself.

"Fighting Cock: For guys with big swingin'........fists"

we have a few other slogans and tag lines that are fun like that. Our website is gonna have something called "Cock TV" where drinkers can post their own viral videos or anything that promots FC and can win free FC. We really want to have fun with it but the process has been slow going and i wish we could get the produciton plant to step on it.

back to the truck:

today is a brisk 50* outside since this coldfront has moved in. i took the truck to the golf course and bashed it good and hard. after about 20 minutes i checked temps and motor was 99* and esc was 74*. absolutely beautiful! tonight we are shooting some vid and then after some editing should have the video up shortly.

so tonight at the track was fun but not as fun as shredding the golf course but we did get some vid tonight. will be posted soon. it was very cold tonight and i took one tumble and my body shattered. there's a $120 down the tube. and the track was very muddy due to yesterdays rain. needless to say we had to play in it.

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Very nice! I bet those Hostiles hooked up like mad on that surface, too.

Now thats what I call a good time!

Awesome Ryan we will see some videos tonight. Woohoo

Sucks about the body... and you have some cleaning to do, I can hear the crunchiness from here!

Maybe a clear trashbag would be a good idea next time lol.

Video is on its way. YouTube killed the audio, so its pending an AudioSwap right now. It's still processing the HD as well, but it should be available soon enough I'd think.

For now, here's a few still shots captured off the video:

(Click to enlarge)

http://i192.photobucket.com/albums/z...50574Large.jpg

http://i192.photobucket.com/albums/z...52011Large.jpg

http://i192.photobucket.com/albums/z...53012Large.jpg

http://i192.photobucket.com/albums/z...53565Large.jpg

http://i192.photobucket.com/albums/z...04241Large.jpg

http://i192.photobucket.com/albums/z...04242Large.jpg

http://i192.photobucket.com/albums/z...06261Large.jpg

http://i192.photobucket.com/albums/z...11151Large.jpg

http://i192.photobucket.com/albums/z...13331Large.jpg

$120 for a 1/5 body shell?... **faints**

Hands up who wants to buy a vacuum former and a big block of mdf & tube of polyfilla to start making their own?

Video is up!

http://www.youtube.com/watch?v=Zgx-ySspOhk&fmt=22

Unfortunately, YouTube audioswap killed the beautiful brushless sounds, but you can just imagine them. lol

dude, i know! its nutz! and that is the cheap one. it was $120 for body and the wrap but for the 5t bodies they are $240. after paint and wrap you are at $300 for the frickin' body. its a little disconcerting to say the least. and the tires are the same. for tires, wheels, and beadlocks you are looking at a good $175 or so. i guess thats the price you pay for bigger toys.

Aww, those 22** motors sound awesome! Great vid, it was worth the wait!

wow Brian! the video turned out great. love the HD. you seriously have a talent for filming and editing. Props to Kulangflow for providing the vid. you make my truck look like the poster child for the Castle website or something. lets do it again sometime but with a little golf course action. i hit up the GC by my house today again and had a blast.

and my extended hubs came today so now i can get my disc brakes installed this week. its gonna be a lot more fun to drive once i have the brakes on. i havent been able to control my pitch off jumps without brakes. cant wait.

Great job with the slo-mo sequences kulang!

Ryu you're driving it like you had more than a few days with it... not babying it much are we?

That front end jump shot was killer!

Nice work both of you:yipi:

thanks redshift. kulang did a great job. i need to invest in an onboard cam sometime and get some vids like yours one day. i recently watched a bunch of your vids. great stuff.

Glad you enjoyed man, if you guys like I can start a thread on OBV. I spend some time on the AP forum on RCGroups, always looking for better equipment. HD is still has a bit of an issue for high speed motion but we are getting closer.....

Thanks for the comments on the video, gents. I enjoyed the filming/editing.

Ryan, we'll definitely have to hit the golf course next week. Let me know what day works well for you.

Good times.

that vid was sweet, thanks for sharing!!!

Sweet *ss video man.... Excellent Job on the editing.... !! Will be looking forward to more V D Os

Ben following both builds from the start and I'm impressed with what I've seen and read. The end result of the fruit of your labors are spectacular and I'm envious of you both, great jobs. The video was great, nice shots and awesome editing A++.

wow, fantastic!! great video! and I love that build (and those wheels!) :smile:

thanks all. the vid is great thanks to kulangflow and the truck has been fun. here is my new body since my first got destroyed. the new body makes it look much larger. i took it to the park yesterday and shredded! it was a blast. hauling across the grass on two wheels half the time. i did an end-over-end flip about 30 ft coming off of a grass hill jump. kept on trucking. one problem though. i checked temps when done and motor was 170* and esc was 110*. esc is fine obviously but that motor temp was totally unexpected and in the danger zone. everything is fine but i like to keep things at 150* or less. i thought i was safe since i had been checking temps every five minutes the first few days of running and never saw it get hot once. i was really running it hard but what do you guys think caused it? geared to high? geared to low? i have a 17t and 18t pinion i could try. should i try those and go higher? based on esc temps isnt it most likely geared too low? and actually i dont know how hot the esc was. by the time i got to it to check it was only like 80* but had the fan on it and the motor had cooled 30* in the time period to get to the esc so i am just guessing the esc was about 110*. it could have been cooler.

broken body:

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new body:

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IF gearing is producing the torque/speed you want, then it's time to reconsider your motor mount. The motor mount, while open, is still thick. I don't think you have one-quarter of the fan that motor needs... and the mount may be acting as an insulator more than a heatsink. You have enough of a hole to use a larger fan, and I would consider one on either side (if you have the room) blowing inward, so that the top is just an exhaust. The fins can't do their job in a semi-enclosed mount like that IMO.

If you have to make more relief for air around the inside, it won't show. But it could be a big help.

Or just wait for colder weather lol... won't be long!

hmm....yeah i like the gearing as far as performance and speed. its definitely fast enough....i dont think its the motor mount though....although it looks beefy it is not thick. the face is only .15", just enough to allow for a flathead screw, and the sidewalls are only .10" thick, a couple millimeters literally. the corners are the thickest. i could chamfer those but felt it was unnecessary.......but i do have a larger 60mm fan that i had planned to use but just threw the 40mm on cuz i didnt have to drill any holes. i had considered mounting the 60mm fan so that instead of sitting square on the flat part of the mount it would actually sit so that half the fan blades are over the hole to cool the can of the motor and the other half is over the front endbell to provide air to those holes in the endbell allowing the motor to breathe better and perform better....and most likely be cooler. and i have compared the 40mm and 60mm fans and teh 60mm definitley blows much more air. i will give it a shot but i would rather eliminate the cause of the heat (gearing, weight, kv, etc) rather than just strapping on bigger and better fans.

i am gonna put in an order for a Neu 2220 2y 550kv motor next week. not necessarily to fix this issue (although i will try it in the ramp) but to prepare for the baja conversion and i wanted to get it first to run it in this rampage to see the performance difference over the 2215.

like this:


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Ok James, it does look thicker than it is apparently. I have to cauton you about "splitting" the flow with these little fans. They load up and will themselves run hotter, if there is obstructed flow.
You can try it, just hold one while it's running and cover up a small part and you'll hear it bog.

So my suggestion would be a venturi setup for smooth flow between the fan dia. and the square hole. A piece of modified tupperware, something like that.

Certainly not as clean as what you had, but if it keeps that big dollar motor happy for now.... :)

Ok that's twice I forgot to mention, new body looks way cool!

Me likes.

Alright... sleep time for me.

thanks for the input. i am gonna try the larger fan and maybe that will do it. i dont think it will be often that i see temps that high but i dont want to even risk it. i want to be able to confidently run as hard as possible and not worry about heat issues.

Looks very nice. You've been running the 15T then? You like it? I'm going to stick with the 12T for now. I'm not going to have much of an RC budget for a while.

I'd like to get my chassis motor mount holes slotted this today.

update, vid, and gearing ?'s
 

hey kaz,
good to hear from ya. you should go back and read through the posts. there are a few things i have posted you may want to know. like running the 12t pinion really put stress on the motor shaft because of how long it is. and the 15t pinion just performed so much better in every way. i would recommend cutting the 12t pinion in half if you are going to run it. maybe run it first and see how it goes but when i used it there was evidence of stress on the motor shaft. also, here is a vid of mine if you didnt already see it: http://www.youtube.com/watch?v=Zgx-ySspOhk

also, not sure if you saw my post on this but saturday i ran my rig very hard and although the motor temps had always been below 115* they got up to 170* that day. it isnt often that i run my trucks as hard as i did that day but i am trying to figure out what i can do to get my temps down. every other time i ran temps were very low. but maybe you could provide some input as to what you think i could do. i dont want to just strap on a bigger fan, although i will, but i would rather find the cause. eg gearing, weight, motor kv, amps, etc?? do you think i am geared too high? too low? any input would help.

Do you have a video without music? The song is great, but I like to listen to engine and motor music instead :lol:.

sorry dude,
kulangflow posted the vid and said that youtube wouldnt allow the sound to be posted for whatever the reason. i will tell you this: it is surprisingly quiet and smooth. it really doesnt sound any louder than my 1/8 brushless rigs. in fact, i would venture that it is quieter than my 1/8's. i am gonna try to get another vid up with sound in the next few days.

whats your thoughts on the temps from saturday, lutach? you must have some thoughts about a possible solution.

Yeah, I did read all the posts. I 'm going to use the 12T for now. I will slid it all the way back to the can and then the whole thing as close to the spur as I can get. That should minimise as much stress on the shaft as possible.

When you were running it hard was that with the 15T pinion? If so I would re-gear with the 12T and run it hard again. That will give you a better idea if it is caused by gearing.

I broke one of my straps that hold the motor to the plate...so I am currently making another one.

when i rant he 12t i had it slid all the way on too. so that the end of pinion was right close to the can. i am sure it will be fine but i thought that because i had it slid on so far that is where the stress came from and that it might stress it less if it wasnt slid down on the shaft so far. idk, just my thoughts but i know the 12t can work. be sure to post what kind of temps you see when you get yours running.

when i hit the hot temps i was using the 15t. i am gonna try some other pinions and see what happens. i did do some tests with both the 12t and 15t pinion and i initially thought the 15t would be geared too high but i really didnt see much difference in the temps when testing them both. i wonder if simply it was too high rpm. i will experiment and see what happens.

Strange that youtube took out the sound of the car, but youtube does sometimes take out the sound if a song has some sort of copyright to it. I just wanted to hear just the vehicle though with no music at all that's it :lol:.

Your temps are good as with the other efficient set ups we have on the forum. Now I saw that you mentioned 170, but how was your driving style when and if it got that hot? Have you thought about going higher on the spur tooth count? I see that you have the space for one.

i was driving like a bat out of he11 when i hit those high temps. i do have a 17t and 18t pinion that i plan to try tomorrow and see what happens.

Freaking amazing!

Gotta keep in mind Lutach , anythime you do slo-mo or fast, there will be gaps in the audio, continuity is important in making a 'watchable' video IMO.

Kulang and Ryu, I really like Vimeo. Converting takes less than an hour, your video won't go thru 15 different filtering programs and such. I suggest you upload the same vid, the way you guys wanted it originally, to Vimeo. Many of the guys on the RCG Aerial Photography forum swear the quality stays more intact with Vimeo than YT, and I quite agree.

How fast is your vehicle now? At that size, making it faster would be just too risky I think.

its 55mph currently. that is my estimate. i havent gps'd it yet but i know its in the 50mph range. i could definitely take off someones leg with it. who knows the formula for determining impact force. weight x speed ?? it weighs 27lb.

The plans that I have laid out for when I start my 5th scale vehicle shows a speed of only 40mph max for the onroad version. The problem with the 5th scale that I see are the plastic parts breaking at such speed. You could go with a bigger spur and 12T pinion to get a more efficient set up which will provide tons of torque and will be fun getting a few extra minutes of run time.

i actually wanted a larger spur gear but the next available size was 48t and just too big to mount. it could be done with a very large alum. shim under the center diff mount but i want to stick with the 40t spur cuz its simple and clean.

as far as durability the rampage has proven to be very durable. i have taken a couple of heinous spills and it didnt skip a beat. i have the Vertigo titanium turnbuckle kit since i heard the stock ones can bend .

i am just gonna play around with things and i am starting to feel not really concerned that i will see hot temps again. that day it got hot was when i was letting my 12yr old nephews drive it and they were making me nervous cuz their driving was not good. it was after they drove when temps were high. i had checked temps a few minutes previous to them when i was driving and temp on the motor was only 100*. so i am thinking that what happend is what aqwut said, that stopping and starting over and over and revving to top speed instantly builds up the most heat and i think thats what they were doing.

i am bidding on a baja currently for my next project. cant wait to convert the 5b. they look like a blast too. i want to build a nice 1/5 collection for myself.