brushless 1/5 4wd conversion about to begin! couple questions. - RC-Monster Forums

lutach · 10.05.2009, 01:46 PM

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

.

Ryu James · 10.05.2009, 02:13 PM

Quote:

Originally Posted by lutach

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

.

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.

lutach · 03:48 PM

Quote:

Originally Posted by Ryu James

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.

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

.

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.

Ryu James · 10.05.2009, 06:05 PM

Quote:

Originally Posted by lutach

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

.

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.

lutach · 10.05.2009, 09:04 PM

Quote:

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 · 10.06.2009, 02:18 AM

Quote:

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 · 10.06.2009, 08:39 AM

Quote:

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.

redshift · 10.05.2009, 07:01 PM

Quote:

Originally Posted by lutach

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

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.

KaztheMinotaur · 02:16 PM

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.

Ryu James · 10.05.2009, 02:30 PM

Quote:

Originally Posted by KaztheMinotaur

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.