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Thread: Chopped and Dropped Class 2 D90

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Old 09-12-2019, 06:42 PM   #21
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Default Re: Chopped and Dropped Class 2 D90

So here's my cut lines for the body.

And I need to decide if I want to build for 4.19 or 4.75 tires. Thoughts?

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Old 09-12-2019, 06:45 PM   #22
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Default Re: Chopped and Dropped Class 2 D90

The bigger tire seems more appropriate, but the smaller one seems more likely to be the size someone building a 1:1 version would use.

Hope that helps.
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Old 09-12-2019, 06:46 PM   #23
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Default Re: Chopped and Dropped Class 2 D90

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Originally Posted by klampykixx View Post
The bigger tire seems more appropriate, but the smaller one seems more likely to be the size someone building a 1:1 version would use.

Hope that helps.
Hahaha you just basically verbalised my internal monalogue!

I think, to be competitive in C2 4.75 is a no brainer.

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Old 09-12-2019, 06:48 PM   #24
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Default Re: Chopped and Dropped Class 2 D90

4.19 looks much better IMO.

Did you ever consider using four Traxxas drag slicks? Or the eBay slicks for the Tamiya wheelie machines?
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Old 09-12-2019, 07:04 PM   #25
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Originally Posted by JatoTheRipper View Post
4.19 looks much better IMO.

Did you ever consider using four Traxxas drag slicks? Or the eBay slicks for the Tamiya wheelie machines?

I am still building a crawler. But I think I am going to print a second set of wheels to have street tyre setup. Im thinking if I do go 4.75, it will be something with a smaller lug than the Krawler, like the Proline KM3 4.75" Predators. Another option is 4.45 tires like the Boom Racing Hustler MT/x, But i dont like how zagressive it looks.

The next thing I am yet to decide is power. I am usually 110% brushless, but I am tempted to try a brushed setup. This is mainly a price based decision, but also I want to see what keeps pro level rigs on brushed power.

I started looking at Holmes brushed offering and got very lost very quickly. Turns, magnets, hand wound machine wound.

I want something that can still get up and boogie speed wise, but has excellent startup torque and hold.
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Old 09-12-2019, 07:26 PM   #26
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Default Re: Chopped and Dropped Class 2 D90

I find with motors, low turn geared down works well for good low speed resolution and bulk torque.
Ie, my last scx was heavy. I had a 12turn motor with a 12/86 gear and UD axle gears.

On 2s it had good wheel speed but gobs of torque.

Anything higher turn just didn't have speed or the torque in fact.

As for brushless, I found myself liking 1/8 buggy motors, 4 pole and also geared down with reasonable success. Under 3000kv and four pole for smoothness and still has enough wheel speed for a bit of fun. Tiny bit of cogging coz not sensored but nothing to complain about really as long as ur esc has good low speed resolution.
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Old 09-12-2019, 08:32 PM   #27
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Default Re: Chopped and Dropped Class 2 D90

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Originally Posted by klampykixx View Post
I find with motors, low turn geared down works well for good low speed resolution and bulk torque.
Ie, my last scx was heavy. I had a 12turn motor with a 12/86 gear and UD axle gears.

On 2s it had good wheel speed but gobs of torque.

Anything higher turn just didn't have speed or the torque in fact.

As for brushless, I found myself liking 1/8 buggy motors, 4 pole and also geared down with reasonable success. Under 3000kv and four pole for smoothness and still has enough wheel speed for a bit of fun. Tiny bit of cogging coz not sensored but nothing to complain about really as long as ur esc has good low speed resolution.
Yeah ok. Im thinking of going with a trailmaster 12t 550 and running it on 3s with 1080 hobbywing.

My other rig has a Mamba X and a HH 2700kv puller pro and its a weapon.
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Old 09-12-2019, 08:35 PM   #28
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Default Re: Chopped and Dropped Class 2 D90

Nice, the Holmes motors are a good bit of kit. The 550 spins a little slower than an equivalent turn 540 but make up for it with more torque.

On 3s u could afford to gear it even further down if u wanted because of the rpm gain from 3s
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Old 09-12-2019, 09:31 PM   #29
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Default Re: Chopped and Dropped Class 2 D90

I know these aren't the cheapest but If you want to see what HH does thats special I'd go for a Crawlmaster (5 slot), the 550 version is one of my favorites. the 10-13 turns can get up and boogie depending the on gearing.

I think the 4.19" looks best but an in between size would be good too, the (the no XL) Proline TSL's are 4.5" I believe also pretty aggressive tread though.

This spreadsheet is pretty useful in finding tires in the size you want
RCC Tire Spreadsheet

Last edited by HumboldtEF; 09-12-2019 at 09:37 PM.
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Old 09-12-2019, 09:53 PM   #30
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Default Re: Chopped and Dropped Class 2 D90

I just check out the Pitbull range of tires. Im thinking the Braven Berserker 4.35" might be perfect!

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Old 09-12-2019, 11:09 PM   #31
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Default Re: Chopped and Dropped Class 2 D90

Good looking combo
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Old 09-13-2019, 09:10 AM   #32
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Default Re: Chopped and Dropped Class 2 D90

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Originally Posted by nedmo View Post
Yeah ok. Im thinking of going with a trailmaster 12t 550 and running it on 3s with 1080 hobbywing.

My other rig has a Mamba X and a HH 2700kv puller pro and its a weapon.
12t 550?

I'd run the 21t 550, my Trailmaster Sport in that configuration works great in my Ascender - also paired with the HobbyWing 1080ESC.

Oh yeah, that's with 3S...

12t would likely run too hot, IMHO.



(BTW, can't wait to see the rest of this build!)
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Old 09-13-2019, 11:42 AM   #33
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Default Re: Chopped and Dropped Class 2 D90

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I just check out the Pitbull range of tires. Im thinking the Braven Berserker 4.35" might be perfect!

Kinda funny I was thinking reading through your build that a 4.3-4.5 tire would be the best in between for size and the berserker would look nice. Kinda a purpose built look to it.
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Old 09-13-2019, 12:20 PM   #34
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Default Re: Chopped and Dropped Class 2 D90

Yeah the Berserkers look like a perfect fit, I forget about the 1.9's. I really like my 1.5 Berserkers they hook up nicely.
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Old 09-22-2019, 08:07 PM   #35
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Default Re: Chopped and Dropped Class 2 D90

Bit of an update. Got the front offset axle designed.

The centre will actually be a SSD Pro44 centre. I just mocked up a Pro centre for measurement.

The way I build these SSD centred axles is a 9.52mm OD brass tube is the spine of the axles and slide into the axle centre. The axle tubes I print and slide over the outside of the brass tube.

For the first time I have used the scx10ii bolt on link mounts. For my comp axles, I usually print link/shock mounts onto the outer tube.



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Old 09-22-2019, 08:41 PM   #36
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Default Re: Chopped and Dropped Class 2 D90

I also need to make a decision if I should run CMS or SOA. I was just going to do CMS, cause scale...but this is going to be a high performance C2 build, and SOA is the best COG and suspension setup.

Can a well setup CMS be just as competetive as SOA?
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Old 09-23-2019, 04:34 AM   #37
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Default Re: Chopped and Dropped Class 2 D90

Short side is printed. Only took two revisions to nail the spline!



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Old 09-23-2019, 03:17 PM   #38
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Default Re: Chopped and Dropped Class 2 D90

And full axle!

Beauty of this design is it can be flipped and run left or right offset. So as I have a land rover, gonna keep it scale and run it left drop!

Need to mirror my transfer case but thats ok.

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Old 09-23-2019, 05:56 PM   #39
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Default Re: Chopped and Dropped Class 2 D90

Some very cool stuff going on in this thread...keep up the good work sir!
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Old 09-23-2019, 09:02 PM   #40
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Some very cool stuff going on in this thread...keep up the good work sir!
Thanks very much!

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