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XRAY T4'20 SPEC

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Old 07-25-2019, 10:58 AM
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Originally Posted by dlruk View Post
Why have they got spacers under the hinge pin areas and bushes all the way up? To get really high roll centre? Is that to stop roll in high grip/speed?
Maybe they have some arms that mount further inward and need to raise to compensate? Not sure. But do see mid motor
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Old 07-25-2019, 11:30 AM
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That's the RX8 support, super tiny :-)
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Old 07-25-2019, 02:18 PM
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So they have actually molded new longer arms according to that last pic!
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Old 07-25-2019, 06:38 PM
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Indeed they have! Funny how everything goes full circle. check out the pic of an Xray T1.


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Old 07-26-2019, 05:20 AM
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Originally Posted by dlruk View Post
Why have they got spacers under the hinge pin areas and bushes all the way up? To get really high roll centre? Is that to stop roll in high grip/speed?
Theory is if you raise the roll centre, instead of the car leaning into the corner it stays flatter and pushes down harder on the outside wheel.
Think it might help sometimes in lower/mid grip tracks.

But they are developing and testing all the time so don't expect everything you see to definitely make any production kit.
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Old 07-26-2019, 07:44 AM
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Think this is in response to AMX. They've been running arms shimmed as high as 3.5mm since the beginning of the asphalt season with great success.
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Old 07-26-2019, 10:44 AM
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Originally Posted by malkiy View Post
Think this is in response to AMX. They've been running arms shimmed as high as 3.5mm since the beginning of the asphalt season with great success.
The only issue with this is that an Awesomatix Arm raised 3.5mm is that it is about equivalent to raising the RC on an xray only about 1-1.5mm from when using the center pills.

The Awesomatix car has a super low RC because the pivot balls mount about 1mm lower than the lowest pills on an xray and the outer pivot mounts over the arm about 0.5mm-0.75mm from center vs the outer hing pin on a conventional tc, creating a downward angle of the arm towards the center deeper than on other kits. Awesomatix going to “high roll center” is really just sort of correcting the Geometry so it is closer to being around above the ground slightly vs where it used to be really far under.
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Old 07-28-2019, 08:23 AM
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So the T4'20 might be both mid and long arm... Bruno says new platform so it has at least one of the above.
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Old 07-28-2019, 09:02 AM
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Now if the plastic parts are changing... Maybe we will go for a T5 ;-)
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Old 07-29-2019, 01:48 AM
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Originally Posted by DavidNERODease View Post
So they have actually molded new longer arms according to that last pic!
At AOC Melbourne they had longer arms
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Old 07-29-2019, 04:17 AM
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Long arms
new suspension blocks
mid mount / new motor mount
optimised bulkheads
revised sway bars

at least 70% new. Good chance to not be called T4!

drivetrain (apart from belts), shocks and steering all the same though.
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Old 07-30-2019, 01:36 AM
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Originally Posted by cplus View Post
Long arms
new suspension blocks
mid mount / new motor mount
optimised bulkheads
revised sway bars

at least 70% new. Good chance to not be called T4!

drivetrain (apart from belts), shocks and steering all the same though.
No guarantee that all the parts being tested will end up on the car though.
Probably still called T4 though
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Old 07-30-2019, 05:24 AM
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Originally Posted by Skiddins View Post
No guarantee that all the parts being tested will end up on the car though.
Probably still called T4 though
very true on both counts!

what I’ve seen looked very close to production ready.

As for the name, I’m going to the factory in 4weeks. Might see if I can find a pallet of cardboard.
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Old 08-06-2019, 12:34 AM
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Another mid conversion RC COX https://ppm-rcracing.com/products/CO...JvLmEfINLE5_Ys
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Old 08-06-2019, 07:56 AM
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Originally Posted by Barry_Hughes View Post

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