1/5th scale speed project???
 

Has anyone done a brushless speed car that is a true 1/5th scale. I haven't seen or heard of any records of a 1/5th scale car. I don't even really know what car would be good to use for something like this. I would imagine you would need a BIG single motor setup to reach 100 or if not a twin big motor setup. The 1/5th scale cars I have seen are usually 25-30lbs or more.

Been looking around and MCD and FG make some touring cars I believe. Does anyone know what they weigh?? I looked on several sites and haven't seen the specs of the cars. I am wondering what motor I need to be looking at.

I know modelsport.co.uk sell a few of the FG Marder 1/5th scale stuff- might have some specs and links on their site. As for which motor... Im thinking Plettenberg Bolido....

I'm trying to give this guy some advice: http://www.rcgroups.com/forums/showthread.php?t=854389

I will contact the company that makes a 4WD 1/5 scale and ask them if they'll be able to send the car or not. suicideneil already seen pictures of my 1/8 scale chassis and I'll be doing the same for the 5th scale.

I was looking at a 4wd touring car. I want something low to the ground and low drag. 100mph with a 1/5th scale is going to take some SERIOUS power. How does the Bolido stack up against a Neu 22XX series. I haven't talked to Steve in depth about the 22XX series yet, but I think they are rated 10K watts or more.

I havent read anything about battery powered speed records in the 1/5 you should be him, but a few months ago cruising the net I saw the HARM electric LINK and although its slow and has a small engine I was thinking about that Pletty Bolido and one of my 1/5 bergonzoni gas cars I smashed up pretty nicely. With the engine off it weighed 12lbs and had a some more to shed. Only issue looks like getting the motor close enough to the spur bigger pinion I dunno,never got around to it, almost all of them that ive seen have the rear end set up the same. Those FG competition cars on that site look light, more carbon less aluminum Some pics
[IMG]<a href="http://s274.photobucket.com/albums/jj264/jayjay283/?action=view&current=bergonzoniproject007.jpg" target="_blank"><img src="http://i274.photobucket.com/albums/jj264/jayjay283/bergonzoniproject007.jpg" border="0" alt="Photobucket"></a>[/IMG]
http://i274.photobucket.com/albums/j...project016.jpg
http://i274.photobucket.com/albums/j...project006.jpg
http://i274.photobucket.com/albums/j...yndiffs012.jpg

Bolido specs: http://www.plettenberg-motoren.com/U...lido/motor.htm

Its rated at 5kw, and 820kv, for 6-8s lipo. Not quite as impressive as I had always thought, and for the price I think the Neus would be a better choice- more kv ratings etc to play with.

On the car front, there are several companies in the UK actually that sell 1/5th or 1/7th TCs- i have some old magazines with pictures and infos- i'll see if i can dig out any useful info for you tomorrow- need to go bed now :sleep:

as for the motor weight

http://i274.photobucket.com/albums/j...project014.jpg

Is that your car?? Are you going brushless on it?

I thought the Bolido was suppose to be a monster. The 2215's from Neu are rated 10Kw....so twice the power I guess. I will do that or go twin 1521's or 27's. I have extra motors so that is possible, but I get back into the issue of weight then. 2 of everything....

those are 2 different ones in the pics both bergonzoni .. i was thinking about a bolido but got playing with my emaxx too much and dont really have anywhere to run a 1/5 it if i did, not that I ever ran them much.

I never found the bolido specs and didnt know if it was fast or a torque machine cuz I cant speak german lol

A german guy went 95mph with a Lehner 2240. He was using a Schulze 40.160 and seems to be 8S4P Kokam 3200. The Bolido is good, but Plettenberg only recommends up to 10S lipos. When I do build my electric I'll be using a Ney 2215/2Y for 12S and a 2215/3Y for 20S. I will use one of my Spin 200 for 12S and the SHV for 20S. I think 100mph should be very easy to do with a 5th scale.

I was looking at this car....


http://image2-1.rcuniverse.com/e1/fo...61/Fa86291.jpg

http://image2-1.rcuniverse.com/e1/fo...61/Zx70351.jpg

Looks like a ton of room for batteries and ESC/Motor....

that looks perfect for tons of lipos and easy motor mounting, you will have alot better luck with 1/5 tires as they go about 80mph out of the box

Here are some of the 1/5th scale cars that I have seen go really fast:

http://fastestrc.blogspot.com/search.../1%2F5%20scale

Here are some pics and video of that car. I think this is the one you're talking about...

http://fastestrc.blogspot.com/2008/0...e-901-mph.html

sweet vids, that rc10l sounds like a jet

Guess 90.1 is the record for a 1/5th scale.......that gives me something to shoot for...hehe.

Yeah I printed out the picture already and am scribbling where I can put everything. The posts on the sides will be battery trays. Like the one this guy did.......PERFECT for 12S :party:


http://i43.photobucket.com/albums/e3...1/000_1014.jpg


http://i43.photobucket.com/albums/e3...1/000_1010.jpg

Man look at that car, so much you can do with it, thats going to be 1 sick ride. Ive been wanting to see something like that bad. I was just hoping to get mine moving without gasoline lol, but a 4wd 1/5 car 100+ man im envious !

I talked to a company today that sells them. They apparently are interested in selling me a roller.....so that is all I need. I'm going big on the motor though. I think just a single 1527 or 2215 minimum and then a SHV controller.

Yep, that's the one I'm talking about. I'm in contact with the factory that makes it. Hopefully they should send me one so I can convert for them.

Edit: I asked them to take out the engine, gas tank and those side gears.

Let me know if they work with you. This car looks like the PERFECT canidate for very high speed passes and the stock body looks to be perfect for 100+ mph passes. The car in general looks great for racing.....looks solid.

Do you have he ones that shows inside it? If not here it is: http://www.onefive.de/e-power/.

I gave the guy from http://www.largescalerc.com/ some advice and I wanted to help more, but I needed the vehicle here to make all the necessary changes. I gues he didn't trust me on this one. Here is the thread: http://www.therczone.com/forums/showthread.php?t=15651.

What voltage is he running that Bolido on???

Looking at that video of the 1/5th scale doing 90mph he must be running around 4000 watts or so. That car is pretty big, and impressive.

1 thing about the car maybe to check on (it hit me which one it was), i saw it a few months ago on an australian site and read about a couple who wanted to import them and they got 5 monster trucks of these its pretty much the same chassis aarms etc i think, and the aarms kept popping off, this was probobly because it was made into a monster truck but i think the lower aarms are attached to the chassis not held to the front bulk thing with hinge pin style. Probably not a problem with onroad 1/5 as you dont hardly have any travel or they fixed it, this was a few months ago. Just thought id mention it.
http://i274.photobucket.com/albums/j...y283/aarms.jpg

The max voltage stated by Plettenberg is 10S lipos. The Bolido is a very special motor from what Plettenberg told me. They are 10 pole and produce just a ton of torque. That's why they only rate the motor for around 5kW. Electric motors also make power from torque and the Bolido has plenty of it.

Yes, 4884 watts to be exact. Man I had my 1521/1Y doing 4760 watts on 10S. After I have some fun with my truck on 6S, I'll start getting it ready for 10S speed runs with the 1521/1Y and 12S with the 1521/1.5Y.

I'm wondering how that Bolido stacks up against the Neu 2215 then. I would rather stick to Neu since its in the US and makes it easy for service.

That's what I tell everyone now, to stick with Neu because of their location and great record on repair time. If Lehner and Plettenberg can come up with a solution to open an office in the US, make the prices more attractive, then we can add more option for 5th scale. I would go with a Neu.

I figured the Neu being rated 10Kw's is more then enough to get that car moving some pretty serious speeds. I don't see why that car wouldn't be able to get 100mph with a 2215 and 12S at least.

Lutach the only that has me concerned is the gearing. Are those mod 1 gears??? Also it looks like it uses several gears for torque multiplication. I don't think its necessary though and probably just go direct to spur.

http://i43.photobucket.com/albums/e3...1/000_1011.jpg

It should go much faster. Let me get the car here and do some changes and we will see.

Maybe that's for the gas engine. The Neu 2215 will be able to provide plenty of torque to ditch all those gears. I have designed a mounting system for motors, that is very unique and I will utilize it on the 5th scale as well. The only thing that might give up will be the drive line. Just remember that the gas engine will have a peak RPM of around 12-13000rpm and the Neu will go to 30000rpm. The gas only puts out around 4hp and the Neu will be able to put out over 5000 watts or 6.7hp and torque that the 23cc gas engine will never produce. I can see a 5th scale geared properly go around 120-150mph.

Well I'm shooting to turn the 2215 around 55-60K rpms. So I will go SHV if needed. Just have to figure where to put all the batteries.

The Neu 22s are only rated for 30K. I haven't spoken with Steve yet about it, but I don't think 55-60K will be possible with it. The Bolido with 10S will spin at 30340 unloaded and I think that's where the big 4+ pole motors should stay. It might have something to do with the large magnets and the G forces it will make at those high RPM levels. Man, if the 2215 can go to 55-60K safely, you can shoot for 200mph :lol:.

Hmm on the Neu site its says 60K is max......wonder which it is.


http://www.neumotors.com/20061222/2200_series__.html


Look at the top of the page in the link......it says 60K

It's a Typo. http://www.flydma.com/catalog/index.php?cPath=1_7_8 also here http://www.fastelectrics.com/neuspecs.htm bottem of the page.