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-   -   Bl Mt-2 Ss (https://www.rc-monster.com/forum/showthread.php?t=995)

Dafni 08.28.2005 04:10 AM

Okay Camel, this is easy. Do you know the Final Gear Ratio of your driveline? If no, just count the teeth. Don't forget the diff.
When you have the FGR, measure the circumfence of the tires.
Then calculate the rpms of your motor at full throttle. That's the KV rating (rpm per volt) times the voltage of your batts.
And then do the calculation. Aim for 30 to 35 mph with the teeth number on the pinion as X in the equation.
Sounds complicated, but it isn't. I guess you already did this anyway.

Check the temps. Don't let them exceed 180 degrees Farenheit. If your motor is under 180 after a full run, you are fine.

Also, make sure the MGM is properly set up. I heard the MGM's have alot of parameters.

If you have a bit of experience with a certain combo, you kinda feel and hear if it's properly geared. It's not good if the motor revs up to easy. And you also feel it if it has to push too hard.

Good Luck, and let us know how you like it.

(don't forget, I'm also rather a BL newbie, but that's how I do it. Mike is the guy with the most experience here, and I think he has this motor in his Pede)

DAF

RC-Monster Mike 08.28.2005 10:04 AM

HAD the motor in my pede. Lehner basic 4200 in the pede now. Not as powerful, but plenty for me! Of course I can help if needed.

Dafni 08.28.2005 02:42 PM

Camel, have you heard this? If it's more powerfull than what Mike says is plenty, you wil have a really fast RC.

A pede should be comparable to your HPI, right? Concerning weight.

Let us know if you have any doubts with your gearing. I assume this motor should be able to push your ride to 35mph on six cells without much of a problem.

camel_rc 08.28.2005 04:04 PM

I'm really not sure if it's geared right or not. The controller is in some anti-wheely mode or something like that, but it's goes fast and gets to that speed fast. I think I'll have to do some GPS running to see if it's doing the 35 MPH it should.

coolhandcountry 08.28.2005 04:18 PM

The no wheelie thing is not all bad. Can't drive if tires not on ground. If it acelerates good. That is more important. Imo

MetalMan 08.28.2005 04:31 PM

One of the MGM controller's parameters is the acceleration. You set it for how fast you want it to accelerate to full speed. The slower you set it, the slower it will accelerate, and the fewer amps it will pull, and the less likely it will wheelie. The faster it is set, the more amps it will pull, but it would more likely flip the truck onto its top.

camel_rc 08.28.2005 04:57 PM

I actually kind of like the way it is witht the "traction control" :lol:. Less wear on the tires.

I really want to take it off roading, maybe tomorrow I'll take a trip to the bmx jumps up my street.

camel_rc 08.29.2005 09:06 PM

After a little more running, I think I've decided that it's undergeared, so I think I will get some Proline M2K's to make it a little more MT like and then it should be properly geared.

Dafni 08.30.2005 03:20 AM

Yep, undergeared is no good either. This 35mph was just a carefull guesstimation. Might as well be a good deal more. I have no experience with this kind of cars.

Just watch the temps.

RC-Monster Mike 08.30.2005 09:28 AM

As Metalman mentioned, the MGM controllers have a soft acceleration parameter as a default. This makes for a smoooooth takeoff and minimizes wheelies. If you want more punch, adjust this parameter first. The 8s motor has plenty of power to turn the larger tires, but you will find the truck doesn't handle nearly as well(flips etc.). Depending on where you run and the type of running you do, this may affect you "fun". I didn't like the bigger tires on my mt racer.

camel_rc 08.30.2005 01:38 PM

I used to run M2K's on one of my T3's. They were great because they soaked up bumps and gave it great ground clearance, but the motor didn't have the torque to turn them, so I sold them.

Dafni 08.31.2005 02:37 AM

A lower ride can make up for the bigger tires (at least a bit)

Or, if you're not content with the gearing on smaller tires, you can also get another pinion :D

camel_rc 08.31.2005 06:59 PM

I guess, but if you've ever seen one of these things with M2K's, you would want to put some on it too!

crazyjr 09.02.2005 09:22 PM

Sorry about that Dafni. I was just tring to make a joke.

crazyjr 09.03.2005 12:35 AM

sorry wrong thread

coolhandcountry 09.03.2005 09:33 AM

I was looking for the joke. I Thought I was going crazy. :)

crazyjr 09.04.2005 12:55 AM

Sorry coolhand, the joke was in another thread

camel_rc 09.05.2005 02:38 AM

Yeah, stop clogging up my thread!

camel_rc 09.25.2005 12:25 AM

Dang it! You wouldn't think 9 cells would be all that hard to fit under a body...

camel_rc 10.01.2005 03:12 AM

Alright, made a new battery setup and it's up and running.
http://i17.photobucket.com/albums/b5...S/DSC02613.jpg

http://i17.photobucket.com/albums/b5...S/DSC02614.jpg

I took it for a little test run on a almost dead battery and this thing scares me! I rolled the throttle and the thing takes off with a wheelie and then goes onto the back right wheel and then flips across the street! I can't wait to take it to some dirt and see how it flies.

Serum 10.01.2005 07:37 AM

Cool!!

How is the ballance of the car? (left/right?)

is your motor slightly off-line?

I'll bet it's light weight ride! it's a clean setup you made!

camel_rc 10.01.2005 12:22 PM

Quote:

Originally posted by Serum
Cool!!

How is the ballance of the car? (left/right?)

is your motor slightly off-line?

I'll bet it's light weight ride! it's a clean setup you made!

The balance of the car isn't that bad.

The motor is a little off-line, but that isn't causing any trouble so far.

For a nitro vehicle, yes it's a light ride, but when I pick up my FT B4 after I put down the MT2, it's seems like a feather compared to the BL beast.

Nick 10.02.2005 05:33 PM

Hey there,

I have a normal MT2 and thinking of making it electric. It isn't the SS so is the drivetrain weaker?

I also thought of making it rear wheel drive (or front wheel drive? Servo/Motor takes up alot of room), removing the front driveshaft allowing battery space, good/bad idea?

Thanks.

camel_rc 10.02.2005 05:51 PM

The drivetrain is a little weaker, but it should stand up to the force of the BL.

I think it is best to leave it in 4wd mode. When I was testing mine, the front drive shaft fell out and it sucked with only the rear wheels being powered.

The ideal setup would be to have the weight of the batteries evenly distributed, but having 9 on one side doesn't seem to be causing any trouble. If you are running lipo, this woudn't be much trouble because the battery would be so light it wouldn't matter too much.

dabid 10.03.2005 02:23 AM

You gotta run that thing during the day, everytime I've seen it, the dim light of a streetlight just isn't enough!

camel_rc 10.06.2005 10:39 PM

Here's a preview for a full length movie:
http://i17.photobucket.com/albums/b5...20001_0001.jpg

camel_rc 10.06.2005 10:40 PM

It's pretty crazy on 9 cells...

geoff 03.07.2006 03:13 PM

Quote:

Originally Posted by camel_rc
It's pretty crazy on 9 cells...

has it broken any driveline parts?

Gustav 03.07.2006 04:54 PM

The SS has a stronger drivetrain than the std MT2.

There's the Hotbodies lightning 1/10 to consider now too.

virusss 03.07.2006 05:39 PM

camel i don't see the vid...
:(

geoff 03.07.2006 05:54 PM

Quote:

Originally Posted by Gustav
The SS has a stronger drivetrain than the std MT2.

i upgraded to all SS driveline, but i still broke the inner female dog bone cup (diff outputs) at least 6 times they broke...


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