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Kamis, 04 Agustus 2016

DRB-REW Typhoon Version 1.2


RE-Xtreme .RSG. DRB-REW Typhoon Silver Version 1.2



It's been a long journey for the REW, my original prototype chassis still works great. but I wanted to include the small changes I have made along the way. So I'm moving the #000 chassis to another DRB currently in mid battery config.


 This chassis is the last of the Version 1.2 production run which now numbers #039.


small changes to front extensions.


Thicker shock towers.


and .... oooh that twill is always an option. But this post is really about the SSG.


A small change to battery tray allows adjustment forward position by 6mm.


Version 1.1 upper deck includes changes to the steering mounts for strength.This chassis uses original DRB Tower supports so the type C front brace is required.


A slot has been placed in the lower main deck for easy servo horn access when using the front servo location.


I've changed the cutout on the left side for more mounting options. Design remains through the rebate.


all original options remain. For those using normal length shocks a lower mounting position certainly is an advantage.


Rigidity braces are included as options, lower diffuser mount suits Yokomo drift package.


So with the transformation complete and the typhoon spec almost ready to run and the Prototype chassis swap underway.


It's now time to complete packing the #028~#038 for shipping by next week.


Box sets ready for delivery.


Join the Rear Evolution Weightshift 

FR-D Vs MR-DRB-REW Scale Projects


When you are chasing scale, I guess at some point you have to try Front Motor / Rear Drive.



When I was living in Japan, I saw and drove over 50 different conversions in the development of CS 4WD Chassis.

But Why so many?

Front, Mid, left, right, central and Rear Motor;
Centre and rear Battery ;
inline, lateral , split pack Battery ;
Rigid, Flexible and Weighted Alloy Chassis ;

But Why?

Well, individuality is something that the Japanese do very very well.You could say the manufacturers were chasing performance, but ultimately they were chasing the niche market.

With so many different products on sale in a flooded market, How do you make yourself stand out?
 
In 2013 RWD really kicked off with the Wrap Up Next FR-D developed to take the 4WD Drift Package and turn it into something completely new. It came from a very solid perspective.

Realism. Not performance, Not Competition, but Realism.

In a way it was nice to see the likes of D-Like build their RE-R Hybrid because those guys embraced the weight shift mantra of making the chassis visually as dynamic as real cars as well.

The FR-D V3 incorporates a focus on weight shift so it's a natural for a scale looking machine.
My .RSG. DRB-REW performs very well and strikes that balance like the D-like RER.

So I'm in the process of preparing both. FR-D and another DRB-REW.


Big lock these days is easy to achieve. Wrap Up Next really have simple and flexible components.

Mimicking the real car look of D1 and even grass roots machines at big angle is awesome. 


High Battery or High Mount Engines are also common place conversions. The DRB-Layout is low enough for belt drive lovers to get the weight shift look.


This DRB is getting the Full Ninja Black on Black treatment, so parts were sent off to the anodisers today.


Should return like this... waiting makes time for more de-construction


Now is 2016 Mid Year...

It was really great to see the latest RWD competition at Pro Shop Shift based on Drift Trains and community rather than one out single winners.

It's something that we tried to build at GCRC and continue at GCRCD with Twin and Triple comps, Battle Train comps and other stuff.  The D1 Style Comp doesn't promote the same effect.

It takes away the need for outright speed and builds in the KDF Keep Drifting Fun mentality. Not everyone needs a million dollar chassis even if it's cool. You can still take the prize.  



Now that RWD Competitions are in place. We respect the people out there who only want one thing, and that is going flat out on huge open asphalt surfaces like Yokomo's Yatabe Arena. This is where YD-2 was developed. Have RWD cars become faster... Yes. Can they exceed the 4WD in many situations YES.

We know this because 2WD PAN car and 2WD Buggy are premier competition classes.

I haven't seen too many YD-4 sold so we can take it as progression that CS is definitely evolving into the RWD competition machine. And this is where Yokomo YD-2 has forgotten about scale and gone chasing speed and "RC" trophies.

That's not really my style.

I am more the scale modeller so I don't want to chose a single body shell only because it handles well.

THE Yokomo GP Sports S15 is THE one for that, but I will choose a Drift Body because it resembles a real car that I have owned or want to own.


So I am putting an FR-D into the RE-Xtreme stable with this V3 Weight Shift design and I'll be putting that front motor on show. 

FR-D = Front Motor, Rear Drive - Drift.




The FR-D is however a maintenance nightmare. Superfluous gears, hard to mount components.

Motor goes here,  first take everything apart!!!

   
Want to change ratio?  First take even more than everything apart!!!

A bit like working on a real car for an engine swap ... devote a day to any major change. 

But it all starts with a motor...


Should it behave like a Torquey V8 21.5T or Revving Torque-less Rotary 8.5T, I usually tend towards the free revving option.

So a nice lightweight Active Hobby shaft installed also.


Wrap Up Next steering already showing capable ackerman action.


The rear end will get some more upgrades or side-grades for looks rather than performance.


New rear end is good for maintenance.


It will take more than a few weeks for both these projects to be tuned for action.

Target body is PAB-120 Trueno

Rabu, 13 Juli 2016

RE-Xtreme DRB-REW Settings - Angles


What angles do we need? Everyone has their own preference. Even me, three DRB-REW chassis and they are all similarly different.


FLAT at Desired Angle. That's what I like.



TYPHOON Spec.

The silver chassis uses modified lower Y-Arm and Wrap Up next VX Knuckles.  NO KPI on this one.


When my chassis is at drift angle, I like the ZERO degree front wheel for lots of control.


Camber 11.


Castor 11.



TSUNAMI Spec. 

Lots of Yokomo here. Drift Package 7 degree knuckles with Yokomo DRB Y arm. Front Shock is Drift Package Short Shock.


Target angle on this chassis is a little higher that the others. I like that this one can get way out there. 


So this is where the Zero is set. 


But is doesn't start there. 10 degrees Camber. I like to angle the tyres under my RC bodies in this way.
Definitely a style choice.


9 degrees Castor is fairly realistic with 7 degrees KPI helps the wheel lay over for less chassis lift.




SAMURAI SPEC

This chassis is set for a little less raw angle


Wrap Up next style. This time with some KPI. No Trail. (yet)


When angle cranks up on this chassis, I've built in some serious "posi-can"  


Many real cars with basic modified drift geometry get this look. They end up hammering the edge of the tyre as the sidewall gets mashed. In RC we can use an angled tyre to overcome this.

Looking at the wear on the trye, you can see the entire curved face is used.


12 Degrees Castor is a good starting point.


Camber is only 7 degrees on this machine.

One of the main things regarding my setups is that they still use a large scrub radius. I rarely run rims under 9 Offset. I just like the deep dish. Sure I could run less offset and push the knuckle wider 5mm.


So whether you like the style, looks or ultimate speed and performance. Whether you like bigger angles or shallower higher speed you'll need to learn to fine tune.

I am still coming to grips with the million combinations in a RC chassis. Finding the right combo (that you like) is ultimately test, trial and error. Having 2 chassis that are similar can reduce your development time, but once you know where you are heading, the settings are ultimately similar.

Enjoy your RC

Minggu, 26 Juni 2016

DRB-R Setups


Swapping a DRB format to rear motor moves more weight to the rear. For more rear hang time.




While this one will soon be converted to DRB-REW, the basic steps are already undertaken. It also frees space in the front for more steering options and is perhaps the first steps towards such a RWD conversion.


Unfortunately this donor's centre support has been trimmed for mid mount battery placement. But it's something I need to consider for a potential DRB-REMid Mounted battery


Type V2 front set and MST knuckles already are RWD compatible components. Add some wiper extensions and gyro, remove one-way and CVDs for RWD action. 

This format can allow you to try RWD and expand the CS options before you commit.