brushless 1/5 4wd conversion about to begin! couple questions.

[lutach]

Originally Posted by Ryu James

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.

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

[Ryu James]

Originally Posted by lutach

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.

[lutach]

Originally Posted by Ryu James

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.

[Ryu James]

Originally Posted by lutach

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.

[lutach]

Originally Posted by Ryu James

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.

I see and 100F is not even warm. Do you drive until the LVC kicks in?

I'm still waiting for a company that makes CF parts mainly for the military to let me know if they'll be able to do my parts. They told me they can make almost everything out of CF using their process and that got me interested.

[_paralyzed_]

Ryu-
Glad to see your truck is moving! (I was offline for a while.)

You said you were on grass when the temps were high Maybe all your runs were on grass, dunno, but I suspect the grass was the culprit. Any setup that is dialed on dirt or asphalt will usually run hot on grass. Even though it's a big powerful 5th scaler, grass is just rough on r/c stuff.


Kulang-
No offense here (just stating my opinion),but I hated the video. There were no "fluid video" shots. Just a slideshow. There is a bit of artistry when you add stills to video, in moderation. To me it seemed you tried to hard to make it a good video with all the stills, and should have left some of the meat and potatoes. Just my opinion. Either way I was happy to see the big guy in action, I just prefer real time video......

[Ryu James]

Originally Posted by _paralyzed_

Ryu-
Glad to see your truck is moving! (I was offline for a while.)

You said you were on grass when the temps were high Maybe all your runs were on grass, dunno, but I suspect the grass was the culprit. Any setup that is dialed on dirt or asphalt will usually run hot on grass. Even though it's a big powerful 5th scaler, grass is just rough on r/c stuff.


Kulang-
No offense here (just stating my opinion),but I hated the video. There were no "fluid video" shots. Just a slideshow. There is a bit of artistry when you add stills to video, in moderation. To me it seemed you tried to hard to make it a good video with all the stills, and should have left some of the meat and potatoes. Just my opinion. Either way I was happy to see the big guy in action, I just prefer real time video......

thanks man,
the truck has been a blast! it is fast and tough as nails. it leaps like no other RC i have. it just flies off the jumps. i still havent had a run til the LVC kicks in. i have run for as long as 35 min and never run the batts down yet. the temps are doing fine. i can get them up in the 135 range after about 20 minutes of running at the park but like you said off the grass it would probably always stay cool. the hotter temps are always when i am on the grass. i just thought because it was so big that the grass wouldnt affect it like it does my 1/8 stuff.
i still havent mounted the brakes. they are ready to go and everything i have just been lazy and have been having fun running it. in fact, that is one reason i run it on grass. it slows down much quicker so i have a lot more confidence to get it up to speed and not worry that i dont have brakes. i will post pics as soon as brakes go on.
i was going to do a baja for my next conversion but i have changed my mind. i am gonna save up and get the MCD EVO Ultimate and do a conversion. its gonna be sick and i cant wait. the MCD has an almost identical driveline the redcat so the gearing and motormount work i have done should work out fine. cant wait.
scroll down and check out the pics: http://innovativehobby.com/mcdraceru...r-instock.aspx

in regards to the video, Kulang did an amazing job with the content. i am guessing he had maybe 5 minutes of uninteresting footage and was able to make a 3 1/2 min vid that was pretty compelling. had we been able to actually film for an hour and get some good footage of course things would be better but i can assure you, had you been with us when we filmed for 5 minutes, you would be amazed too at the end result he produced.

[kulangflow]

Originally Posted by _paralyzed_

Kulang-
No offense here (just stating my opinion),but I hated the video. There were no "fluid video" shots. Just a slideshow. There is a bit of artistry when you add stills to video, in moderation. To me it seemed you tried to hard to make it a good video with all the stills, and should have left some of the meat and potatoes. Just my opinion. Either way I was happy to see the big guy in action, I just prefer real time video......

I'm taking my ball and going home!

I'm not offended at all. I appreciate constructive advice. I even started a thread once asking for advice on improving my videos, but no-one really replied.

Just to clarify, when you say "stills" you're referring to the slow-mo sequences, right? There were only a few still shots at the very end, so I'm pretty sure they're not what you were referencing.

I was curious, so I did a quick breakdown of the video.

1:29-1:47 - Slow-mo
1:53-2:04 - Slow-mo
2:24-2:55 - Slow-mo
2:58-3:34 - Slideshow

So, that's 76 seconds of slow-mo/slideshow and 214 seconds of real-time fluid video.

Can you clarify what you meant by "...no "fluid video" shots. Just a slideshow..."? I wonder if some of the real-time video looked like slow-mo because you couldn't hear the motor pitch. The original video had the truck noise and a much better song timed to to the video, but YouTube killed it unfortunately.

Ryan and I will be filming a bunch more out at the golf course soon, so I'd really like to improve my next video of it. All advice is appreciated. Thanks!

Word.