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Eagle Racing R31-RWD GRT

 
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flypilot


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Joined: 09 Jan 2014
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Localisation: Norway
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PostPosted: Sun 9 Feb - 19:43 (2014)    Post subject: Eagle Racing R31-RWD GRT Reply with quote

Why have you moved tha battery forward on this car? I also have the R31 rwd and battery in the stock position and are thinking of moving all the way back to the rear diffuser....I am thinking it is easier t hold the lock that way to get more pendulum effect going maybe?

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Publicité






PostPosted: Sun 9 Feb - 19:43 (2014)    Post subject: Publicité

PublicitéSupprimer les publicités ?
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RCJohan


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Joined: 24 May 2013
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PostPosted: Mon 10 Feb - 10:51 (2014)    Post subject: Eagle Racing R31-RWD GRT Reply with quote

That is so good looking!! 


Flypilot: I have the battery over the rear diffuser on my R31, works great for me but it's just a matter of testing  Okay


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Braaaapp


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Joined: 08 Jun 2013
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Localisation: Ontario, Canada

PostPosted: Mon 10 Feb - 23:14 (2014)    Post subject: Eagle Racing R31-RWD GRT Reply with quote

From all my testing I have done, I prefer my weight further forward. I found that it greatly decreases understeer. It feels like the front wheels are on rails going exactly where they are pointing. Also, less weight in the rear makes the rear end of the chassis swing around faster/easier. It also allows you to be more aggressive with your entries since the chassis doesnt have the weight of a battery swinging around on the rear of the chassis which would carry its momentum much longer then having a light rear end (this is exactly the reason why 1:1 porsch, ferrari, NSX are not very good at drifting).

The benefits of running most weight in the rear;

1) Its easier for RWD beginners to drift smooth since the chassis has more understeer meaning the driver doesnt need to be perfectly smooth on the steering

2) The steering geometry doent need to be setup perfectly since the understeer makes it less noticable

I think its just personal preference. 95% of the RWD drifters in japan drift with batteries in the rear. It might just be because thats where the battery is located stock or it might be what they prefer.


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Automatix


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PostPosted: Tue 11 Feb - 11:24 (2014)    Post subject: Eagle Racing R31-RWD GRT Reply with quote

Weight in the rear means traction and speed. This might be the reason that most Japanese chassis run like this. If I compare my Imadoki with 65% of weight in the rear, compared with my FR-D with 50% weight at rear I see that the Imadoki gives me much more possibilities to adjust my speed to the other drivers - the usable range is wider.

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Braaaapp


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Localisation: Ontario, Canada

PostPosted: Tue 11 Feb - 22:35 (2014)    Post subject: Eagle Racing R31-RWD GRT Reply with quote

Yeah the extra weight i the rear will increase the grip. To run with the AWDs at my cub, I run hard rubber in the rear and plastic up front and it works great. 

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leozhanght


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PostPosted: Thu 20 Mar - 21:51 (2014)    Post subject: Eagle Racing R31-RWD GRT Reply with quote

Cool Cool Cool

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Mandy


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PostPosted: Sun 23 Mar - 18:17 (2014)    Post subject: Eagle Racing R31-RWD GRT Reply with quote

Just curious what you did in order to get that extra bit of angle.

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Braaaapp


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Joined: 08 Jun 2013
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Localisation: Ontario, Canada

PostPosted: Sat 19 Apr - 16:00 (2014)    Post subject: Eagle Racing R31-RWD GRT Reply with quote

Sorry about the extra large pics guys Embarassed . I just resized them all..

To get the extra steering angle, I spent a good amount of time testing different ackerman link lengths and knuckle holes.

To get the wheel clearance for the trailing wheel, I hadto move the shock further inward. To do this i hadto move the whole motor plate inward using much smaller spacers. I then flipped the spur gear hub around and drilled a new hole for the cross pin. Next thing I did was install the long gold spacers to the shock tower which were originally used to space the motor plate. This pushed the tower further away from the  gear for clearance of the upper arm screw head. Next was to drill and tap a new hole on the lower arm for mounting the shock inward. Then I mounted the shock as far inward as I could on the tower before it hits the gear. I hope that made sense Very Happy


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