Monster GT Conversion With A Center Diff - Page 4 - RC-Monster Forums

Krawlin · 02.07.2010, 08:42 PM

New video! Speed runs!

I stuck my 13tooth pinion on the motor and did a few passes and ended up breaking the truck.... So watch the video to see! I'd say it's hitting mid to high 50's, the video doesn't really do it justice though. I'll calculate theoretical speed on the speed calculator for that gearing. Anyway, here it is!

lincpimp · 02.07.2010, 09:36 PM

Tires must be taped. I would say it is doing mind 40s... Looking good though, enjoyed the vid!

Krawlin · 09:49 PM

Quote:

Originally Posted by lincpimp

Tires must be taped. I would say it is doing mind 40s... Looking good though, enjoyed the vid!

No actually they aren't taped. Or did you mean they need to be? The video honestly doesn't do it justice because its pretty damn fast with a 9 tooth, I wanna say high 30's to maybe 40 or 41 with the 9 tooth. I really need a radar gun or a local cop to radar this thing for me.

lincpimp · 02.07.2010, 09:51 PM

If the tires are not taped, you are not getting much ballooning, and I have run those tires un taped and under about 40 they do not balloon much. So I just do not think you are doing more than 40 cause of the lack of ballooning. Just my experience though. Get a radar gun. I have the bushness one and it is great. We used it to get accurate reading on all of my rcs. I compared it with my cop buddy's mounted radar and it was only a few % off.

Krawlin · 10:52 PM

They were ballooning alot actually, I'll have to get another video sometime, maybe with my Badlands when I get them. I dont think you can see it in the video that well but you can hear it. At 25 seconds to 29 seconds and at 36 seconds to 39 seconds and at 47 seconds to 50 seconds, that sound that is like a helicopters blades is the tires vibrating when they balloon, they only make that sound and that extreme when they start ballooning. And it's not just the fronts... I'd say at full speed all 4's have about 1 inch of ballooning. I know that it has to be going faster than mid 40's.
(See the attachment pictures)

But I do need a radar gun, I'd like to know just how fast it's really going.

EDIT: Also, screenshots of the video and speedcalc results, you can see the tires ballooning, fronts and rears, and here are the speed calc results with 1 inch of tire ballooning and nominal voltage (which is probably less than it actually is since I doubt those Turnigy 40C/50C batts have that much voltage drop (from 4.2 volts to 3.7 volts) on a full charge).

EDIT EDIT: Probably shouldn't bother with the speed crap anymore, I dont want to start anything with anyone about it, but I'd like to believe its going faster than low to mid 40's.

suicideneil · 02.08.2010, 11:37 AM

On a high traction surface with plenty of room to build up speed, I see no reason why that setup could be doing atleast mid to high 40s. A Bushnell radar gun is only $70-80 new, less used on ebay...

Krawlin · 02.11.2010, 01:55 AM

So I got my Badlands glued to some half offset wheels, and put an extra body I had for my truggy on it, and it looks awesome! Pictures tomorrow if the weather isn't crappy. Will finally get to test it out with the badlands tomorrow also (if it's not raining that is). Other than that, I don't really have any updates for this truck.

Krawlin · 02.18.2010, 09:35 PM

I have some new updates planned for this truck, not letting the cat out of the bag just yet though. Possibly some teaser pictures next week some time.

Krawlin · 01:19 AM

I guess I am a bit late with a teaser shot, but here ya go.... a very pixelated screen shot of my CAD drawing, and the drawing isn't quite done yet.

A couple hints, it isn't what you probably think it is, and it will be cut out with a PlasmaCam CNC plasma cutter.

And I am not saying what material it will be made of.

rawfuls · 02.24.2010, 01:17 AM

Ooh i know what it is

Krawlin · 02.24.2010, 01:25 AM

Quote:

Originally Posted by rawfuls

Ooh i know what it is

Well don't say! I want to hear some wild guesses and see if anyone gets it right.

Urgeoner · 02.24.2010, 02:59 PM

CF? Looks nice btw (truck does)

Kcaz25 · 02.24.2010, 09:12 PM

Is it the motor side of a CD mount? Is it a chassis?

Big fan of this project BTW. Although I won't go along with it being better than a Maxx. Maybe tougher and bigger than a stock Maxx, yeah I might go along with that.

_paralyzed_ · 02.25.2010, 12:53 AM

peanut butter in the chocolate? No no, chocolate in the peanut butter. I don't know. It's not better than my maxx

Show us please!!!

Krawlin · 02.25.2010, 02:30 AM

Quote:

Originally Posted by Urgeoner

CF? Looks nice btw (truck does)

Nope.... and thanks.

Quote:

Originally Posted by Kcaz25

Is it the motor side of a CD mount? Is it a chassis?

Big fan of this project BTW. Although I won't go along with it being better than a Maxx. Maybe tougher and bigger than a stock Maxx, yeah I might go along with that.

The first one.

Thanks. So far, this truck has been alot better stock vs. stock than my E-Maxx, even better stock vs. upgraded E-Maxx IMO. I was snapping RPM arms at the hinge pin hole with smaller hits that this thing is just driving away from perfectly fine.

Quote:

Originally Posted by _paralyzed_

peanut butter in the chocolate? No no, chocolate in the peanut butter. I don't know. It's not better than my maxx

Show us please!!!

Where the hell did peanut butter and chocolate come from?

I guess I will show you guys though......

A screen shot of the completed center diff top plate and center diff motor mount, brace not shown.

I am still not going to say the material or what the final product will look like, you'll just have to wait and see.