R/C Tech Forums - Speed Passion Thread

Does anyone here have any experience in 2wd sc mod racing?
looking to put together a TLR22 SCT and wondering if a Reventon R with an 8.5 would be a competitive combo. It is med to large indoor clay off road with traction being medium to high. I will ask around at the track as well to see what turn motors are used in mod. Are the 4wd sc mods the type of vehicle which would use a Blaze style motor? thanks.

The Blaze motors are for 4WD SC or 1/8 EBuggies depending on which one you are talking about.

An 8.5 generally a good motor to run in Mod 2WD SC. Some run lower winds, but can't always handle the power.

RedDevil13

02-18-2014 10:37 AM

Quote:

Originally Posted by RedDevil13 (Post 13009546)

I am using a reventon pro and a reventon pro 1.1 on dirt oval cars. I have used the 1.1 with a 5.5 motor with some heavy boost settings on Stock1 V20.

Now I am looking at possibly using one of these ESC's with either a 17.5 boosted pretty high or a 13.5 in either blinky or low boost. Im looking for some tips on settings to run on the esc. My run line is small, around 105-110' banked oval. traction is pretty high, shouldn't have trouble laying down the power. I have run the 5.5 on this track already and it gripped, its just way more than anyone needs on such a small track.

Anyone have ideas? or a different firmware I should try?

Oh the motors will most likely be Novak Ballistic or Vulcan

Anyone run a 17.5 with a reventon? Just want some safe ESC settings to try.

Cain	02-18-2014 11:25 AM

for ROAR stock class racing, is this rotor legal:

http://www.speedpassion.net/us/produ...S13803NA&c=MTR

http://www.speedpassion.net/uploadfi...3803NA-r01.jpg

mjk1210

02-18-2014 12:56 PM

ROAR rules indicate that rotor diameter must be between 12.29 and 12.51 mm. This one is 12.5 so should be good.
You always want to look at the latest rules and you can find them on the ROAR website. www.roarracing.com. I think it's a pdf file you can download. There's a lot in there, but if you race ROAR events you should read it anyway.

Cain	02-18-2014 01:07 PM

reason I ask is that it was mentioned ot me there is something specific about the rotor that the one in question is lacking:

http://www.fantomracing.com/images/mod_spec_rotor_3.JPG

I noticed this in the ROAR approval under tuning rotors:

Quote:

RS13803N 12.5MM Red Ring/Silver Rotor

which makes me think it is as far as roar is concerned.

However, here is the section from the rule book applicable to that picture:

Quote:

8.5.4.4.2 ROAR Spec Motors: External shaft diameter must be 0.125 inches (3.175mm). Only one piece, two pole Neodymium sintered, or Ferrite (Ceramic) magnetic rotors are permitted. The magnet length shall be 25.0 +/- 1.00mm not including any non-magnetic balancing material. The magnet outside diameter shall be a maximum of 12.51 mm, no tolerance, for the entire length of the magnet. The shaft outside diameter, where the magnet is mounted, shall be 7.25 +/- 0.150mm for the entire length of the magnet. This dimension must be measurable without destroying the rotor.

Does the speed passion 12.5mm rotor fit the bill?

kevmtnbiker

02-18-2014 06:13 PM

Quote:

Originally Posted by kevmtnbiker (Post 13000306)

I ordered the Speed Passion Competition MMM 10.5 motor today, and can't wait to try it out! I will be using it to race in 2wd Short Course in a Kyosho Ultima SC, and most likely a Hobbywing ESC. Just wondering if anyone had suggestions for a starting point on gearing and timing? Thanks for the help for a newbie!

Any help would be appreciated, I am a newbie and don't want to burn up my new motor. There is nothing in the manual at all about gearing, and couldn't find anything on their website either. Need to get gears ordered pretty soon...

kwiksi

02-18-2014 06:47 PM

Quote:

Originally Posted by heinen81 (Post 13016307)

I've run SP Reventon Pro w/7.5 SP 3.0 motor with good success. You should be fine with the R and 8.5.

heinen81

02-19-2014 05:44 AM

Quote:

Originally Posted by kevmtnbiker (Post 13021579)

there are a few things people will need to know... such as spur gear size, are you running boosted, track size, racing, bashing, ect. There are alot of factors that go into gearing and everyone's circumstances are different. If you are around a 75 spur gear, i would suggest getting a pinion set of 18 and up. Keep checking motor temps until you see a 160ish temp in either a full batteries life if you're bashing, or 7-10 min if you are a racer. Its a process and everyone's situation is different, takes some experimenting. Also make sure your driveline is free of any bind, and your front wheels spin freely at full turn. Any binding or push in handling will work the motor temps up as well.

lovethebuggy

02-21-2014 01:44 AM

Hi all I have some questions...

First, is there any table to program the reventon R with mod 0?? Using the led card I mean.

Second, how can I solder the 12awg cables I got to make the car wiring in the reventon r? It does not come whit those gold pins that you can see in the pics of it, instead It has a hole... And can't find a way to fit them... Can those pins be added to the ESC?
I can't even solder the 14awg included properly... They come off alone...
Please any help would be really appreciated...

lovethebuggy

02-21-2014 01:44 AM

the incubus

02-21-2014 07:23 AM

I soldered 12AWG to my R just fine, but you have to know how to solder and how to manipulate tined ends. I tined the ends properly and then used my crimpers to squeeze to make them narrower. As well, you have to remove ALL the solder front he points on the ESC so they are fully open. Then you slide the crimped ends through and place a touch of flux on them and touch with the iron while adding an additional TOUCH of solder.

Should look just like factory solder points if you do it right.

Nexus

02-21-2014 07:47 AM

Quote:

Originally Posted by lovethebuggy (Post 13028969)

Quote:

Originally Posted by the incubus (Post 13029456)

Exactly as incubus described. You should be able to solder just about any gauge needed to any ESC. It does take a bit of practice to get solid solder joints. Most likely what is happening is that you are getting cold solder joints.

This is a great reference.

http://www.aaroncake.net/electronics/solder.htm

TJ Hart

02-21-2014 08:49 AM

Today I was going over my truck to prepare for racing tonight, and I noticed the positive wire came clean out of the glitch buster on my Reventon Pro. Has anyone tried going without the glitch buster? Is it necessary? And if it is necessary and I replace it tonight, can I use any glitch buster?

Nexus

02-21-2014 09:16 AM

Quote:

Originally Posted by TJ Hart (Post 13029752)

Do you mean capacitor?

You can use another brand if they have it at the track. Most are sold by RC companies are rated the same.

TJ Hart

02-21-2014 09:35 AM

Quote:

Originally Posted by Nexus (Post 13029834)

Do you mean capacitor?

You can use another brand if they have it at the track. Most are sold by RC companies are rated the same.

Yes I do, I guess I didn't know the actual name. What does it do? Is it necessary?

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