XRAY - Model racing cars

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PostPosted: Wed Jan 13, 2010 15:25:47 
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Joined: Fri Dec 05, 2008 17:23:43
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Location: TURKEY
Wide bumper improves airflow under the body.


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PostPosted: Wed Jan 13, 2010 19:55:34 
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Joined: Sat Oct 23, 2004 08:22:54
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Location: Holland
Yes, a bigger front bumper should give more downforce on the front.

When there is an airflow between 2 flat surfaces (track and chassis/bumper) they will be sucket to each other called ground effect. Once under my 1/8 car I mounted a large epoxy plate with only an hole for the starting wheel and cut-outs for the 4 wheels, amazing what it does! With just at 50km/h the car acted as a slotcar, it was almost possible to take a 180 degrees turn at the end of the straight without lifting the throttle.


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PostPosted: Wed Jan 13, 2010 22:22:10 
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Joined: Wed Dec 23, 2009 20:14:42
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Location: Greece
The designer of the racing car (real car or rc ...) must create an area of low pressure underneath, so that the higher pressure above the car will apply a downward force.
In order to achieve low pressure we must design the underside of the car,so that incoming air is accelerated through a narrow slot between the car and the ground.
I think that a small part of the chassis (the front bumper…) can not change the air flow dramatically…(It is not like the front wing of an open-wheeled car...)

Anyway I have ordered a narrow bumper,so with the same setup I will see if there is difference :D


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 Post subject: Re: XRAY NT1 - 2009 Specs --- General Forum
PostPosted: Thu May 20, 2010 22:01:34 
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team driver
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Joined: Wed Mar 07, 2007 23:00:22
Posts: 91
Location: Spain
Hi all,

I´ve been testing various belts along the past months and have found that using just the optional kevlar mid belt improves both the transmission and the durability of the pulleys affected by this belt.

The car feels very loose and due to the kevlar material the pulleys don´t accumulate rubber or dust, while while with the estandar belt I usually have to clean the pulleys frequently. Additionally with this you don´t need to drill the pulleys covers (something many do in order to avoid dust in the pulleys).

Hope it helps someone


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 Post subject: Re: XRAY NT1 - 2009 Specs --- General Forum
PostPosted: Fri May 21, 2010 10:41:00 
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Location: Holland
I always spray a teflon or silicone spray on the belts (and pulleys). It keeps dust away from sticking on these parts and make the belts run smoother.


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 Post subject: Re: XRAY NT1 - 2009 Specs --- General Forum
PostPosted: Tue Jun 08, 2010 05:03:39 
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Joined: Fri Oct 03, 2008 14:50:30
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Location: Singapore
I'm just wondering if anyone suggest on how the Orion Alpha Engine sit perfect into the NT1-2010 spec engine Mount.

I have problem with it as it dun seem to sit well ... could anyone please help :cry:


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 Post subject: Re: XRAY NT1 ---- General Forum
PostPosted: Wed Jul 14, 2010 09:31:55 
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team driver
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Joined: Tue Sep 07, 2004 08:36:22
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Location: Slovakia
Hi,

Teemu is using this engine and his fits into the engine mount. Does your engine fit there hardly or not at all? It does not fit where the pins are?


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 Post subject: Re: XRAY NT1 ---- General Forum
PostPosted: Sun Sep 05, 2010 16:32:16 
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Location: Greece
...On this picture i noticed the ruler for measuring the quantity of fuel...
Is this an optional part,or is it custom made ?...And how it works ?

The picture is from 2010 Sedan Worlds,by redrc.net.


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 Post subject: Re: XRAY NT1 ---- General Forum
PostPosted: Sun Sep 05, 2010 16:46:37 
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Joined: Thu Mar 01, 2007 16:41:28
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Location: Trinidad
I believe it is an option as Orcan has the same and Dirk has been using it for some time


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 Post subject: Re: XRAY NT1 ---- General Forum
PostPosted: Mon Sep 06, 2010 07:16:50 
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Joined: Fri Sep 10, 2004 05:52:13
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Location: Trencin, Slovakia
This is XRAY sticker - #338690 Fuel Tank Capacity Sticker (4).


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 Post subject: Re: XRAY NT1 ---- General Forum
PostPosted: Sun Oct 17, 2010 13:20:30 
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Joined: Wed Dec 23, 2009 20:14:42
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Location: Greece
The difference in weight is obvious....

i.e:The diff is filled with silicone.


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 Post subject: Re: XRAY NT1 ---- General Forum
PostPosted: Thu Nov 04, 2010 18:43:34 
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Joined: Fri Oct 08, 2010 16:46:24
Posts: 39
Location: Dublin, Ireland
hi, what size of battery pack i can use for receiver in nt1? wanted to buy some lipo or better life 6.6v to do not use lipo regulator... i have found battery pack life that size: 85x30x17.5mm. Does it fit or not really?

And one more, do I need to change battery tray from composite to more heavy? That life is 83g about...


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 Post subject: Re: XRAY NT1 ---- General Forum
PostPosted: Sat Feb 05, 2011 17:22:30 
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Joined: Sat Oct 23, 2010 18:12:07
Posts: 4
:D Hello from France,

@Roger999: I've got the NT1 Limited Edition and i 've LIFE 1100 VTEC 6.6v; this is the best solution because:

-Lipo have 7v and need adaptator
_Lipo must be recharged when arrive to 5.5v, if not the lipo is definitely dead
-So you use 7-5.5=1.5v only (20/30 mn run) after you have to change it ( and stop the car...

-life 1000 vtec is easy, you can use it until the end of power without problem (10/15h run) and cost 45€


Hope it help you ! :)

[sorry for bad English :mrgreen: :mrgreen:


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 Post subject: Re: XRAY NT1 ---- General Forum
PostPosted: Sat Feb 05, 2011 17:27:05 
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Joined: Sat Oct 23, 2010 18:12:07
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:mrgreen: Hello from France!

Is the "composite belt pulley" saw on Ralph Burch' car [ 8) :roll: ] can be buy somewhere?

Thank you for answering,

:D best regards


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 Post subject: Re: XRAY NT1 ---- General Forum
PostPosted: Mon Feb 07, 2011 19:10:42 
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Joined: Fri Oct 08, 2010 16:46:24
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Location: Dublin, Ireland
thanks a million Alex38 but where i can buy it?
for now i got ORION MARATHON nimh but 1900 mAh so is not too bad.


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 Post subject: Re: XRAY NT1 ---- General Forum
PostPosted: Thu Feb 10, 2011 00:58:41 
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team driver
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Location: Sweden
Alex38 wrote:
:mrgreen: Hello from France!

Is the "composite belt pulley" saw on Ralph Burch' car [ 8) :roll: ] can be buy somewhere?

Thank you for answering,

:D best regards


I believe that you are referring to the optional aluminum pulleys:

335910
335928
335959
335985


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 Post subject: Re: XRAY NT1 ---- General Forum
PostPosted: Sun Feb 20, 2011 12:39:48 
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Joined: Fri Nov 05, 2004 09:12:16
Posts: 78
Location: Maribor, Slovenia
Alex38 wrote:
Lipo have 7v and need adaptator


This is not problem.

I have LiPo 7,4V 1800mAh and LRP LiPo RX Regulator 6V/5A
Image


So here is my work:


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 Post subject: Re: XRAY NT1 ---- General Forum
PostPosted: Thu Mar 03, 2011 17:22:52 
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Joined: Fri Oct 08, 2010 16:46:24
Posts: 39
Location: Dublin, Ireland
JC Borcy wrote:
Alex38 wrote:
Lipo have 7v and need adaptator


This is not problem.

I have LiPo 7,4V 1800mAh and LRP LiPo RX Regulator 6V/5A


So here is my work:


Great job man! But i will stay with nimh or life ;)


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 Post subject: Re: XRAY NT1 ---- General Forum
PostPosted: Sat Apr 07, 2012 17:18:24 
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Joined: Mon Feb 23, 2009 19:06:22
Posts: 26
Location: Italy
Hello to all!

I write here because of a problem that I and many racers in Italy are having. I race with the NT1 since it has been launched on the market in the end 2008. I have the right feeling with the car and I think the product is still the best. Materials are ever at the top and I'm happy to pay a little more than other brands because I know I'm sure to have the right car.
The problem is that times to have the spare parts and optional parts aswell are getting longer and longer (if not impossible). I hate to buy things out of Italy because I prefer to have contact with people I can see and talk directly.
But many drivers are thinking to buy something else stressed by this situation.

I already have a NT1 2012 so I will keep racing with XRAY despite all but I hope this situation will better soon.

example: I'm waiting for a lightweight 2speed shaft for 3 weeks up to now... and a friend is also in the same condition. He also waits a 2011 chassis since october...and yesterday he gave up :(

Hope my voice will be heard
Thank you Xray! ;)


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 Post subject: Re: XRAY NT1 ---- General Forum
PostPosted: Tue Jun 05, 2012 14:05:17 
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Joined: Fri Sep 10, 2004 05:52:13
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Location: Trencin, Slovakia
The 335511 2-Speed Shaft - Lightweight was in production so therefore the delivery time was so long, however now it is back in stock.

The 331102 chassis 2011 is not available anymore and you can get only the new one 331103.

I suggest you will contact directly your distributor in Italy at info@sprintrc.it who will be happy to answer all your questions.

P.S: sorry for late response


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