New Brushless GST..
 

I'm gonna re-do my GST...
I'm planning on using 2 Neu 1527 or should I do 1 big *ss 3080... I'm probably going to make it belt driven... and run it off 14S... Unless Castle sends me the SHV :)...

I have 2 extra 24.160 hanging around, that's why I have the option of dual brushless... I'd have to buy a new ESC if I run the 3080.. Decisions, decisions...

Some input would be great.. Thanks guys!!!!:na:

The 3080 is just a monster of a motor and it will be enough. If you don't get the SHV, just go with a Jeti Spin 200/300 or a 40.160.

I'm really hoping for the 40.300 to be out soon... I'd like to have that ESC just because it has brakes, and would be perfect...

either way would be insane. i think the dual bl would be awesome, especially since you already have the controllers.

Yeah, I was thinking of this also... but the 3080 looks so beautiful..... the 3080 is capable of more power though...

wow! check out the motor i just found. i think it would be more powerful than twin 3080's.
http://www.hobbycity.com/hobbycity/s...idProduct=3872
:whistle: kidding.

:surprised:











:lol:

:lol:

25 lb. MT anyone?

Aqwut, how about some BIG outrunner motor and bolt it direct to diffs? I have consider it myself, but dunno how to make the brakes.. I think it would lighten the truck a bit too, without the gear box.. Just my thoughts..

Problem is the Outrunner is only capable of 7000 Watts and is 1.6 KG (not much lighter than the 3080) ... I would like atleast 10KW of power... so I could have crazy weigh to power ratio... Also I don't think the outrunner would be able to move it too well.. it has a KV of 180... it would only move it about 54 MPH Maximum...


BL_RVO... that motor is AWESOME DUDE>.. :rofl:

You guys think that the KB45 is up to this challenge or would you want more power? I mean it puts out 3500w. But ya if you want more power I say go "outrunner direct drive".
It will have the most torque and probably the same speed as using the tranny with a powerful inrunner.

Only 54 mph, hehe. Dude that car is impossible to drive with those speeds, imo :mdr:

For 80mph passes, what tires are you planning on using is what I want to know. Definitely the 3080 will get you there.

I'm gonna be using the stock tires.... love the sounds of big treads at high speeds.. :)
I'm not too fond of street tires... I might take the GST to speed challenge, if the 1/5th scale doesn't get me pass 80.. that's why I'm thinking of modifying it to something bigger...

Do the stock GST tires balloon bad at high speeds? I just bought an XTM MMT and am doing the same thing you are with it and the MMT is even bigger then the GST. I know feeling the stock tires that they are going to balloon bad. Let me know what you find out, cause other then myself and you I haven't found anyone that has these big trucks running brushless.

I'm going with a 1521 1.5D and HV110. I'm looking for 70mph on 10S.

They're pretty low profile tires, they do balloon... but I haven't noticed really bad ballooning...

think that motor is going to push the GST to 70MPH... Conversion will be about 17-18Lbs...

Mine weighs 18.5 lbs and talking to Steve at Neu he says with 37V's their should be no problems reaching 70+mph. He said aerodynamics is going to be the main problem with a truck this large. Getting it low and stable is the key. I bought the Trinity heavy springs to tighten the suspension up and it will also lower the truck about 1 inch or so.

Also I went with the Neu cause of the 4 pole motor which has more torque.

A guy from germany has done a belt driven nemesis, it was pretty cool. Cant find the pictures anymore. But heres the video http://www.myvideo.de/watch/940850

The pics of his built are gone. But this is what he wrote about his truck.

Motor: lehner 2230/16 with a Reisenauer Gear reduction 6:1
Controller: Schulze 40/160
Batts: 24 x GP 3700 Nimhs

Geared for 34 mph. 24 minutes driving per charge. very low temps of every component.

He made a custom mount for it to be belt driven. That's all i remember.

But i guess a belt would't hold up the power aqwut is lookin for. :lol:

I hope he doesn't get angry at me :lol:.

Seems as if your hard disk is well organized when it comes to rc. :lol: Those were exactly the pics i was looking for.

I liked the way he set everything up and I was going to make something similar with the belt drive system.

Wow that belt drive setup looks factory! Now the only issues is he needs to go lipo.

Yeah, I think he built that truck before lipo was invented/mainstream & easilt available.

Seems like it would work in a Savage too, or any TVP type truck (I need to buy another TXT-1, oh how I miss the old girl....).

If i remember it correctly he comes from hi speed boating (Saw events) and at this time Nimhs were prefered for hi Amp draws (lipos weren't allowed i think). Wheight isn't always a bad thing especially when it comes to handling on a rough surface.

yeah, that GST build was nice.. I saved the pictures too.... I like the belt system, I thought of doing the same thing, but I'd have to use double kevlar belts..

JzeMaxx.. what's that 1521 motor capable of ?.. 2500 Watts?..
I still don't thing that will bring you to 70MPH...

JohnnyMax.. had 2700 Watts on a maxx truck and just made it over 70MPH.... now, mayb that 1527 might be able to do the job...

My 1521/1Y on 10S gave me a little taste of 4670 Watts and a blown rear diff.

Hey Aqwut, why not go with the dual 1527's and a dual-belt system? If I refer to the gear on the center differential or whatever it drives as the spur gear, and the gear on the motor shaft as the pinion gear, then why not have a very similar layout, except with places to mount two motors, instead of one, like the E-maxx motorplate, and have one "pinion" be farther out than the other by mounting the second motor farther forward by the width of one belt to avoid the belts hitting. Then have dual "spurs" (one right in front of the other,) hook up some belts, and you're ready to go. I hope this will give you an idea or two. :smile:

The 1521 will give you around 4000-4500 watts....and can run continous hovering around 3000 or so. Underrated for sure....

I have a 1527 1D, awesome motor as well, but they draw insane amount of amps....I don't like that with a light vehicle, and much less with a close to 20lbs vehicle.

If he's looking for 10000 watts then twin 1527's will do the job.

Yeah, hopefully he'll understand what I was trying to say in that post. :sleep:

Awesome.. I didn't think the 1521's could put out that kind of power... it's good to know... Lutach..

I may just go with twin 1527s then... thanks guys... I appreciate all the input...

2x MGM 24160, 2x 8S 30C 5000mAh, 2x 1521-1Y (1250Kv), all 10AWG wires.. and 6mm Bullet connectors for batteries & motors..

should give me... 8800+ Watts of continuous power on demand... guess that's good.... should make my truck about 20-21Lbs...

Did you decide on a motor yet and controller for sure?? I am going to get my 1521 hooked up tomm hopefully and see how it does on the MMT if I get my motor clamps. I hope its got enough juice to push my truck to 70mph or so. Right now the biggest problem is finding tires to do big mph runs on.

HPI Phatlines.

I'm using them now.....had two blow outs so far....always split on the edge of the tire close to the rim

Did you buy the premounted ones? That's the same problem I had with mine. My next set will be done with some tape on the tires and that should help them a little.

Yes pre-mounted ones......

They have been good till right under a shade under 70mph. Running around 65-67mph which is what the truck runs consistently. Let me know how the taping works out....

Aqwut have you gotten your 1527's?? Are you still doing the twin setup on motors?

Aqwut, I had an idea. Instead of dual 1527's, why not something like dual 1915's or something?