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

[Ryu James]

Originally Posted by redshift

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:

[redshift]

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.... :)

[Ryu James]

Originally Posted by redshift

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.... :)

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.

[KaztheMinotaur]

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.

[Ryu James]

Originally Posted by KaztheMinotaur

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.

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.

[lutach]

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

[redshift]

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

Me likes.

Alright... sleep time for me.

[brushlessboy16]

Freaking amazing!

Damn James. Im speechless! I just read this thread from page one. What a awesome build! Definitely my favorite build here yet! Im quite jealous

Wish I had the money to build something like that! I dont even want to know how much is into that build

I liked the yellow truck body the best. I think it looks more fitting. IMO. Probably takes a few gallons of paint to spray up a body huh?

Very very awesome! And I liked the video! Looks like it handles quite well!

And FC energy drink. You going to let some RCM members test it out? Maybe some rc sponsorships?

[Ryu James]

Originally Posted by BlackedOutREVO

Damn James. Im speechless! I just read this thread from page one. What a awesome build! Definitely my favorite build here yet! Im quite jealous

Wish I had the money to build something like that! I dont even want to know how much is into that build

I liked the yellow truck body the best. I think it looks more fitting. IMO. Probably takes a few gallons of paint to spray up a body huh?

Very very awesome! And I liked the video! Looks like it handles quite well!

And FC energy drink. You going to let some RCM members test it out? Maybe some rc sponsorships?

thanks for making my day BlackedOut! i cant believe you went through the thread from page one??!! its a long thread. anyway, i liked the yellow body the best also but i was driving one night and it was a little cold and i went over on my lid softly and it just shattered. some of the stock redcat stuff is very cheap. i am working on a buggy body now that really hugs the chassis to keep dirt out. hopefully it holds up better.

as far as the energy drink my whole goal with it is to get is as big as possible but i really want to be involved with RC as much as i can with it. unfortunately there have been a lot of delays. we had our cans sent from cali to utah to be filled. they have sat there for 6 months now and we just kept getting strung along. i finally went down and pulled our cans from the place about a week ago and they are now being shipped to a very reputable plant in Portland, OR. we have been guaranteed production within the next 30 days. i would be happy to send samples to anyone wanting to try it. also, we will be doing a reseller type program so if you can land some accounts in your area you could make some money (interested parties please PM me or check the website. it will be updated once production is complete). RCM and Tekno will be getting a case for sure as soon as i have it but hit me up in 3 weeks and hopefully i can send you out a few.

[BL_RV0]

Originally Posted by Ryu James

thanks for making my day BlackedOut! i cant believe you went through the thread from page one??!! its a long thread. anyway, i liked the yellow body the best also but i was driving one night and it was a little cold and i went over on my lid softly and it just shattered. some of the stock redcat stuff is very cheap. i am working on a buggy body now that really hugs the chassis to keep dirt out. hopefully it holds up better.

as far as the energy drink my whole goal with it is to get is as big as possible but i really want to be involved with RC as much as i can with it. unfortunately there have been a lot of delays. we had our cans sent from cali to utah to be filled. they have sat there for 6 months now and we just kept getting strung along. i finally went down and pulled our cans from the place about a week ago and they are now being shipped to a very reputable plant in Portland, OR. we have been guaranteed production within the next 30 days. i would be happy to send samples to anyone wanting to try it. also, we will be doing a reseller type program so if you can land some accounts in your area you could make some money (interested parties please PM me or check the website. it will be updated once production is complete). RCM and Tekno will be getting a case for sure as soon as i have it but hit me up in 3 weeks and hopefully i can send you out a few.

I would definitely love to try some of the FC soda. I'm not much of an energy drink guy as most taste "powdery" to me, but I like giving new ones a try.

Originally Posted by Ryu James

thanks for making my day BlackedOut! i cant believe you went through the thread from page one??!! its a long thread. anyway, i liked the yellow body the best also but i was driving one night and it was a little cold and i went over on my lid softly and it just shattered. some of the stock redcat stuff is very cheap. i am working on a buggy body now that really hugs the chassis to keep dirt out. hopefully it holds up better.

as far as the energy drink my whole goal with it is to get is as big as possible but i really want to be involved with RC as much as i can with it. unfortunately there have been a lot of delays. we had our cans sent from cali to utah to be filled. they have sat there for 6 months now and we just kept getting strung along. i finally went down and pulled our cans from the place about a week ago and they are now being shipped to a very reputable plant in Portland, OR. we have been guaranteed production within the next 30 days. i would be happy to send samples to anyone wanting to try it. also, we will be doing a reseller type program so if you can land some accounts in your area you could make some money (interested parties please PM me or check the website. it will be updated once production is complete). RCM and Tekno will be getting a case for sure as soon as i have it but hit me up in 3 weeks and hopefully i can send you out a few.

I cant resist reading a good thread! Im sure bodies get thrashed, got alot of weight pounding on it when u flip it

Id love some samples! Im sending a PM about that last part.

[Desert Rc]

EPIC BUILD!!!

[Ryu James]

Originally Posted by Desert Rc

EPIC BUILD!!!

thanks man,
it hasnt seen much discussion in a while. i will post some updated pics and vids in the spring most likely. i sold my 2215 and plan to buy a 2220 and get the disc brakes on and then i will post some more vids. i just recently sold all my other conversions except this one. this thing has been the most fun rc i have ever had for sure. those baja shocks are just incredible!

i love energy drinks, you will have to let me know when available and ill send ya a few bucks to ship em to me