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-   -   E-baja 12s (https://www.rc-monster.com/forum/showthread.php?t=12602)

fearandloathing 06.05.2008 01:13 PM

E-baja 12s
 
Here is a non Fine Design baja conversion, its total price is about 2000 bucks and will out power any electric car I have ever seen. It is running 12s2p 8000 true rc packs, hv 110 and a neu 2215 2y. It is not 100% complete yet but we went ahead and tested it out for a few battery packs and to get some test data and photos up. I say we, because it is 3 of us over here in Iraq that helped out to build it.

The battery pack in the photo is the 12s 8000, its huge, so big that we didnt have heat shrink big enough. function trumps beauty over here so we taped it up, serves its purpose. 2 6s 5000 true rc packs fit nicely and we ran that setup for about 30 minutes without any problems, batteries only took about 3500 mah to charge. not bad for such a big car. total weight rtr with 5000 packs is 23.5 pounds. no idea with the 8000 packs.

The hv 110 works like a dream using the pistix adaptor. we put two fans on it and it never gets too hot, i did not have a temp gun but i doubt it was ever over 150.

The 2215 is huge and has a small fan built into it so it stays cool, especially compared to how hot a neu can get in a revo. since the photos were taken, we made a cap similar to a rcmonster neu cap but we milled holes in it and put a screen on the inside so the motor can cool itself but keep dirt out.

The adaptor for connecting the motor to the pinion gear is really simple and would be easy for rcmonster to make them and the motor mount. these are the only two pieces that really require a machine shop. i would like to see mike sell these kits just so there is a cheaper alternative to fine design, he is bad business, i ordered a lehner motor from him in february and he has yet to get me my purchase, just keeps giving me the run around. anyways......

We did our testing on concrete over here but everything is covered in dust so traction is horrible. The ET graph with over 7000 watts was used with a dually kit, 4 tires gave it great traction, it even flipped backwards a few times. The second graph was with street tires and about 3 pounds of tungsten weights attached to the back of the car, like i said, traction is horrible with baby powder sprinkled on the road. The gps clocked it at 57 mph with both setups.

I think we can get it to go a little faster once we get the left side rear bulkhead to chassis support installed. without that support it tends to torque steer to the right, to the point of losing control when you get it going to 57 mph and floor it. 10hp is quite a sight to see in an electirc rc car. we blew two tires in testing.

The biggest shock to me was the power output of the true rc packs. i have been a devoted customer to him for some time now, i have owned all of the major brand of lipos and his are by far the best for your money, when it comes to value and performance. these 10c 8000 packs were putting out right at 180 amps and never went below 3 volts, compare that to some of the more expensive batteries.

Overall, this car is a beast, it drives like a real car and the tires even squeal on concrete. it is strange to see it zoom to full speed in a few seconds and only make that great electric humming sound. plus, how many people have pushed over 7000watts in their rc car?

http://s304.photobucket.com/albums/n...phencrenshaw1/

lincpimp 06.05.2008 01:17 PM

Photos?

bl-is-future 06.05.2008 01:32 PM

I see no photos! Need a video too!

skellyo 06.05.2008 01:38 PM

http://skellyo.com/pichers1.jpg

fearandloathing 06.05.2008 01:43 PM

im having technical problems loading the pics, it keeps saying im not authorized to do that. im compressing them to the right size but then again im a retard with computers.

bl-is-future 06.05.2008 01:48 PM

Quote:

Originally Posted by fearandloathing (Post 179642)
im having technical problems loading the pics, it keeps saying im not authorized to do that. im compressing them to the right size but then again im a retard with computers.

upload to photo bucket then generate code for message boards etc and paste it in here.

Arct1k 06.05.2008 01:49 PM

use photobucket and post links...

BrianG 06.05.2008 01:50 PM

There are limits to pictures posted using the forum image management tool. It might be better to use something like PhotoBucket to host them, and then post the URL to the pictures in your post. Also, you won't need to resize them.

fearandloathing 06.05.2008 02:00 PM

uploading to photobucket now. the net is sloooooww here. sorry, i can not post video for security reasons, THEY would have my a@#

fearandloathing 06.05.2008 02:24 PM

put some pics on photobucket, the link is on the first post.

bl-is-future 06.05.2008 02:29 PM

so i assume this beats the gas engine then????

crazyjr 06.05.2008 02:37 PM

Seen the link pics. Is the eagletree in the linked pics for the E-B5? If, so thats wickedly impresseive power:surprised::gasp::yipi:

fearandloathing 06.05.2008 02:42 PM

the gas engine cant even compete with the electric version. current top speed is not that different, i think it does about 45 with gas, its the time it takes to get there that makes the difference. a buddy was telling me you can get a tuned gas engine for about 1000 bucks that will push 9hp. about the price of the electronics but without the awe factor. in all honesty, 10s would probably be more driveable and slow it down a little.

yes, the eagletree chart is 2 of the runs we made with the b5, the higher watt chart is with the dually kit, clearly getting more traction.

bl-is-future 06.05.2008 02:46 PM

yeah just wondering cause i am debating on a 5b convert or a st-rr or a revo all will eventually get done but one at a time

zeropointbug 06.05.2008 04:23 PM

WOW... that's all I can say. :oh:

MetalMan 06.05.2008 04:44 PM

Quote:

Originally Posted by zeropointbug (Post 179712)
WOW... that's all I can say. :oh:

I agree!

That is one hungry beast... 9+HP in only 24lbs is just incredible. Compared to a performance car like a Mustang GT with decent mods (~3000lbs, 400HP) the weight/power ratio can't be touched... ~2lbs/HP with your E-Baja and only 7.5lbs/HP with the Mustang GT!

TexasSP 06.05.2008 04:50 PM

That is fantastic. Glad to see these results. What kind of temps do you have right now in Iraq?

DRIFT_BUGGY 06.05.2008 07:52 PM

Quote:

Originally Posted by zeropointbug (Post 179712)
WOW... that's all I can say. :oh:

Dont need to say much more

fearandloathing 06.06.2008 08:09 AM

texassp, its about 110 in the day right now, it will cool down to the 80s or 90s at night. in another month or two it will be 120 or more and regardless of how you have your stuff setup it will run hot. you being from texas, im sure you understand.

JERRY2KONE 06.06.2008 08:20 AM

Cool Stuff.
 
WOW that is one nice Rig. That battery pack looks like a cinder block sitting in that thing. That is hilarious. Nice work guys. It is good to know that you guys can have a little bit of creative fun in between duties.

Retired Navy here. Between the press and our own goverment they cannot seem to make up their collective minds as to which way to go with things over there. Trust me there are a lot of American people who stand by and support everything that you guys have to do. Your sacrifices are noticed and appreciated. Stand tall and come home safe fellas. Gald to see that you are making good time of what little free time you get. God bless.

Jerry at US-NATO.

KaztheMinotaur 06.06.2008 10:24 AM

Very nice. Are you worried about getting debris in the motor with the open end?

Arct1k 06.06.2008 11:09 AM

Any chance of someone attaching the photo's to the site as can't see anything...

TexasSP 06.06.2008 11:16 AM

Quote:

Originally Posted by fearandloathing (Post 179857)
texassp, its about 110 in the day right now, it will cool down to the 80s or 90s at night. in another month or two it will be 120 or more and regardless of how you have your stuff setup it will run hot. you being from texas, im sure you understand.

Yeah it gets hot and humid and Houston, but you guys have it tough. Anytime I get to moaning about the weather I think of all of the men and women like you in Iraq in the hotter weather in full battle gear and not having the amenities we take for granted. My prayers go out to all soldiers and my thanks as well.

I think your system is holding pretty well considering the heat though and I am glad to hear that.

bl-is-future 06.06.2008 11:17 AM

Just Click to make bigger!

http://i135.photobucket.com/albums/q...ja/th_baja.jpg
http://i135.photobucket.com/albums/q...a/th_baja2.jpg
http://i135.photobucket.com/albums/q...h_DSC00213.jpg
http://i135.photobucket.com/albums/q...h_DSC00232.jpg
http://i135.photobucket.com/albums/q...h_DSC00233.jpg
http://i135.photobucket.com/albums/q...h_DSC00234.jpg
http://i135.photobucket.com/albums/q...h_DSC00235.jpg

jhautz 06.06.2008 11:26 AM

Amazing job guys. Absolutly love it. That thing is pushing over 6700Watts at the peaks. Thats insane power. I say mount some weapons to the thing and go to war with it. Very, very cool.

Does the stock pinion gear just mount to the shaft on the 2215?

suicideneil 06.06.2008 02:17 PM

There is a special mounting adaptor for the pinion apparently.

Mike would sell loads of kits if he offered the required parts- I'd buy one myself even, and sell my beloved Gmaxx.

Motor mount
Pinion adaptor
Chassis brace thingy

Not much too it really...

bl-is-future 06.06.2008 02:22 PM

id buy one too. Just need a baja to go along with it.:lol::lol:

JERRY2KONE 06.06.2008 03:36 PM

you bet ya.
 
Yea those Baja 5B buggies do look like fun, and pretty impressive as well. The up front pricing is a littl bit steep, but I am sure that I will have one at some point in the next year. I am liking the 1/5 scale stuff a lot. After owning a few MT's I am sure that I will be moving up there sooner than later.

aqwut 06.07.2008 01:19 AM

Nice Conversion... that's awesome.. Love the power of that thing...

jhautz 06.07.2008 01:28 AM

Anyone have a picture of what the pinion adapter looks like. Is it the gear itself, or an adapter the stock gear fits on. Is there gearing options available for these or is the stock pinion the only option. Is it Mod1 or something bigger?

fearandloathing 06.07.2008 02:28 AM

yes, we have a cap for the motor to keep debris out of it. just trying to find a screen to put over the cooling holes so the internal fan can do its job. the 2215 is supposed to run about 97% effeciency so it runs cool naturally.

the adaptor to connect the motor to the pinion gear is machined. the stock clutch bell on a baja rides in a bearing carrier and has a dovetail grove on the end of it that the pinion gear locks onto. there is a screw that screws into the adaptor and holds the pinion in place. the adaptor is basically a replica of the clutch bell, minus the bell. where the bell used to to be, machine it down to about 1 in. and put a set screw in place. at first we were concerned that the motor shaft was not notched and doubted that the setscrew would hold. so far not problems yet. the 2215 comes with an optional 10mm or 5 mm shaft, ours has the 5mm but i think the 10mm would be better since there is plenty of room to make the adaptor bigger.


the motor plate could be shortened significantly. we actually made the motor mount before the motor came in, just going on the size listed on the neu page. the original plan was to have a rear support for the motor, four 5mm bolts hold the motor to the plate, a rear support is not needed.

the pinion and spur are in fixed locations, to change the gearing you would have to buy them as a set. i havnt even looked into optional gearing.

KaztheMinotaur 06.07.2008 07:23 AM

I never thought of using screen. I might try that.

lutach 06.07.2008 10:08 AM

Quote:

Originally Posted by fearandloathing (Post 180055)

yes, we have a cap for the motor to keep debris out of it. just trying to find a screen to put over the cooling holes so the internal fan can do its job. the 2215 is supposed to run about 97% effeciency so it runs cool naturally.

the adaptor to connect the motor to the pinion gear is machined. the stock clutch bell on a baja rides in a bearing carrier and has a dovetail grove on the end of it that the pinion gear locks onto. there is a screw that screws into the adaptor and holds the pinion in place. the adaptor is basically a replica of the clutch bell, minus the bell. where the bell used to to be, machine it down to about 1 in. and put a set screw in place. at first we were concerned that the motor shaft was not notched and doubted that the setscrew would hold. so far not problems yet. the 2215 comes with an optional 10mm or 5 mm shaft, ours has the 5mm but i think the 10mm would be better since there is plenty of room to make the adaptor bigger.


the motor plate could be shortened significantly. we actually made the motor mount before the motor came in, just going on the size listed on the neu page. the original plan was to have a rear support for the motor, four 5mm bolts hold the motor to the plate, a rear support is not needed.

the pinion and spur are in fixed locations, to change the gearing you would have to buy them as a set. i havnt even looked into optional gearing.

Nice conversion. You can use a flat foam or flat out a piece of an old K&N filter and it should allow plenty of air to flow into the motor. Another option is one of those fine screen mesh either made out of fiber glass or some kind of metal.

azjc 06.07.2008 11:45 AM

Quote:

Originally Posted by fearandloathing (Post 179857)
texassp, its about 110 in the day right now, it will cool down to the 80s or 90s at night. in another month or two it will be 120 or more and regardless of how you have your stuff setup it will run hot. you being from texas, im sure you understand.

sounds like Phoenix in the summer, averages 110-115 during the day85-95 at night the coolest time is @ 7am for some strange reason

TexasSP 06.07.2008 12:50 PM

Quote:

Originally Posted by zeropointbug (Post 180063)
Why do you have the Bob Marley pic then? He STOOD for exactly what I am talking about. lol

Please have respect for fearandloathing and others and take the political crap elsewhere. There is no reason to act like an @$$ because you have an opinion.

Robert 06.07.2008 06:29 PM

Sweet ride for sure. I like it. :yipi:

123revo 06.08.2008 04:19 AM

dear dear...what will become of the internal combustion engine with these electric conversions about. when i had my rustler 2.5 i was bashing round with a guy that had a 1/5 Baja. you heard the thing before you saw it. that thing hauled. doesnt suprise me that you converted to electric. i too am looking into a 1/5 MT after my revo is 100% converted. if the torque is more than the IC motor then i am not at all suprised it sqeals the tyres and gets to terminal speed quicker. electric is the future. nice work.

123:smile:

Serum 06.08.2008 08:10 AM

Removed the political parts. Every opinion matters, but i don't think this is the place to vent your opinions in this matter. This will be a discussion that will never end and will result in enemies instead of friends. It's so much easier to offend a person than the please one. You are not exactly a saint either.

I would appreciate it if you guys have used PM to get into discussion, but a discussion seems to be less interesting if there is no audience involved.

Sorry for bringing it this way, but this thread is about the baja conversion. you personal opinion regarding the war, whether it's true or false, doesn't have to be in this thread.

andy85 06.09.2008 12:38 AM

WOAH!!!! please post videos!!! =]

BL_maxx 06.09.2008 01:24 AM

wow that is awesome!!! now i know where im getting my lipos!!1


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