XRAY - Model racing cars

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 Post subject: Re: the pinion doesnt reach the gears on gearbox RX8 2014
PostPosted: Wed Sep 24, 2014 14:43:40 
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Joined: Sat Oct 23, 2004 08:22:54
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Location: Holland
It seems to be related to the brands of engines. A friend recently did make new enginemounts for some Shepherd drivers using XRD engines. The mounting holes are on a different distance from the front bearing compared with Picco/Novarossi.

Brands related to XRD are TeamOrion, Sirio and some othe local Italian brands.


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 Post subject: Re: the pinion doesnt reach the gears on gearbox RX8 2014
PostPosted: Thu Sep 25, 2014 22:42:29 
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Joined: Sun Sep 20, 2009 15:17:09
Posts: 310
Location: Frankfurt, Germany
Roelof wrote:
It seems to be related to the brands of engines. A friend recently did make new enginemounts for some Shepherd drivers using XRD engines. The mounting holes are on a different distance from the front bearing compared with Picco/Novarossi.

Brands related to XRD are TeamOrion, Sirio and some othe local Italian brands.

Ok. But the problem here is not the distance between the frontbearing and the mounting holes. What occurs on the RX8'14 just doesn't seem to be ok! Also O.S. is Sirio-based on the holes' side-to-side distance which is the problem with the engine mounts in generell. And Picco is not the same as Novarossi. Picco is like O.S., Sirio and so on.

O.S. engines does fit the V8 without problems. I know this because O.S. is the one who produces the Maxima engines.

Xray just seem to ignore any gear different from what they are using (Novarossi-based engines and KO Propo servos) and leave their customers with all these troubles. Has Xray ever tried to mount servos from Savöx, Hitec or Orion in an 808 (incl. '10)? On the '11 you needed to modify the right sideguard! Also has Xray ever tried to mount a Savöx, Hitec or Orion servo in a RX8 (incl. '13) with the supplied steering servo horn? The front middle shaft mount from the '14 model doesn't fit the previous models. But as for me, I don't care about that any more as I'll run something really fast next year. For sure Mugen, Serpent, Shepherd or the 'all new' HB.


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 Post subject: Re: the pinion doesnt reach the gears on gearbox RX8 2014
PostPosted: Fri Sep 26, 2014 20:06:50 
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Joined: Mon Mar 24, 2014 22:56:34
Posts: 29
Location: Milan (Italy)
I guess Xray will be doing something to fix this out, hope for their name.

I want to race with my new rx8 2014, I keep this car for all next year and probably the next one. Be sure I will be there and judge only at the end and decide what's the
next steps.


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 Post subject: Re: the pinion doesnt reach the gears on gearbox RX8 2014
PostPosted: Sun Sep 28, 2014 10:58:31 
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Joined: Mon Mar 24, 2014 22:56:34
Posts: 29
Location: Milan (Italy)
I had a test day yesterday with my rx8. The clutch and speed gears are now well placed and no had any problems. I milled a bit the four chassis holes and even the engine is slightly angled all works so well.

I would like to say the rx8 its a high quality product, a well engineered car and nice to see compared to all other cars. Its a robust car, fast and solid.

My next post will be about setups

Thanks XRay for another great product, you have one in your stable and a truly happy customer.


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 Post subject: Re: the pinion doesnt reach the gears on gearbox RX8 2014
PostPosted: Mon Sep 29, 2014 15:07:50 
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Posts: 310
Location: Frankfurt, Germany
lynx75 wrote:
... I milled a bit the four chassis holes and even the engine is slightly angled all works so well. I would like to say the rx8 its a high quality product, a well engineered car ... Thanks XRay for another great product ...
?
I hardly can combine the first two facts with the last two facts ... but ok. If you are happy then it paid off for you. I wish you lots of fun with your RX8.


Last edited by Green Wing on Mon Sep 29, 2014 15:13:01, edited 2 times in total.

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 Post subject: Re: the pinion doesnt reach the gears on gearbox RX8 2014
PostPosted: Mon Sep 29, 2014 15:11:54 
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Joined: Mon Mar 24, 2014 22:56:34
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Location: Milan (Italy)
Green Wing wrote:
lynx75 wrote:
... I milled a bit the four chassis holes and even the engine is slightly angled all works so well. I would like to say the rx8 its a high quality product, a well engineered car ... Thanks XRay for another great product ...
?
Hard to understand but ok. If you are happy then it paid off for you. I wish you lots of fun with your RX8.


I am not sarcastic, apart of the angled engine the car is so robust and solid. It's an amazing car, it so smooth and fast to drive.


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 Post subject: Re: the pinion doesnt reach the gears on gearbox RX8 2014
PostPosted: Mon Sep 29, 2014 15:14:51 
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Joined: Sun Sep 20, 2009 15:17:09
Posts: 310
Location: Frankfurt, Germany
I know that you weren't sarcastic. For club racers it's a fine car as those don't give a lot on extensive play (i.e. in the axles' bearing seats and bearings). Compared to cars with tiny alu-bulkheads it's very solid and unbreakable, indeed. Since I'm running the 2012 car, I remember of three very bad crashes which for sure would had been extremely expensive repairs on a Velox and co. but I never ever broke a part on my RX8 so far. So it may sound as if I would be some kind of hater or fanboy but I'm just calling things by their name. What engine are you running?


Last edited by Green Wing on Mon Sep 29, 2014 15:32:46, edited 4 times in total.

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 Post subject: Re: the pinion doesnt reach the gears on gearbox RX8 2014
PostPosted: Mon Sep 29, 2014 15:18:11 
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Joined: Mon Mar 24, 2014 22:56:34
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Location: Milan (Italy)
Green Wing wrote:
I know that you weren't sarcastic. What engine are you running?


Picco engine.


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 Post subject: Re: the pinion doesnt reach the gears on gearbox RX8 2014
PostPosted: Mon Sep 29, 2014 15:22:35 
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Joined: Sun Sep 20, 2009 15:17:09
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Location: Frankfurt, Germany
Great. Do you think you should had have to mill the chassis when using a Nova-based engine? The difference between the two main measures of engines is just as low as .5 to .6mm in width of the mounting holes. It seems that you have had to mill out the chassis more than this, right?


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 Post subject: Re: the pinion doesnt reach the gears on gearbox RX8 2014
PostPosted: Mon Sep 29, 2014 15:27:43 
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Joined: Mon Mar 24, 2014 22:56:34
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Location: Milan (Italy)
Green Wing wrote:
Great. Do you think you should had have to mill the chassis when using a Nova-based engine? The difference between the two main measures of engines is just as low as .5 to .6mm in width of the mounting holes. It seems that you have had to mill out the chassis more than this, right?


My suggestion is to leave the chassis has it is with nova engine. Please have a try first and you can judge if the clutch and gears are well align even if the engine is slightly angled. If you mill too much then your engine may touch the rear bulkhead which is not good.

Did you have try the car already?


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 Post subject: Re: the pinion doesnt reach the gears on gearbox RX8 2014
PostPosted: Mon Sep 29, 2014 15:42:24 
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Joined: Sun Sep 20, 2009 15:17:09
Posts: 310
Location: Frankfurt, Germany
lynx75 wrote:
Did you have try the car already?

The 2012 car yes, as well as the 2009 808, the 2011 808 and the XB9, the T3R, the T4 and the TIX XT9 conversion.
For sure I'll not try a 2014 RX8. It was fun for quite a time to hunt down 977s, MRX5s and V8s due to driving but now it's just annoying to me. I just can tell what I see and the three cars named above are just better performers. We got one who tried the 2014 RX8 with the old gearing (16/50 instead of 17/49 on first gear to match the taller tyres). After weeks with that car he was running the 977.


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 Post subject: Re: the pinion doesnt reach the gears on gearbox RX8 2014
PostPosted: Fri Oct 03, 2014 22:28:44 
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Posts: 310
Location: Frankfurt, Germany
turbonitro wrote:
This happened also in rx8 2011 and 2012. Engine doesnt reach the gears. I changed all my clutches with the mugen one and a lot much better. Also clutch shoe yellow costs 20 € and mugen is 7 €

No, I run the 2012 with an O.S. XZ-R Speed. No problems. But the clutch shoe incl. with the kit is not the best indeed.


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 Post subject: Re: the pinion doesnt reach the gears on gearbox RX8 2014
PostPosted: Thu Apr 09, 2015 19:07:15 
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Joined: Sun Jan 25, 2015 01:01:15
Posts: 3
Ok first I want to say have only been into rc for about 10 years not long. And i just like many other people search for info on issues like this. This is what I found on this problem.fact#1 its not the chassis its the engine, the chassis are cut the same probably but the same cnc machine not sure but all cut the same. I put a reds m7 in my rx8 and had the same thing happend gear mesh not right. I was told never mill the chassis cost to much to replace. So I had to figure out what to do a buddy of mine told me to mill the crankcase holes so I can oush the engine over and guess what? Easy as bakeing a cake. Now my rx8 has a gear mesh to die for and I didnt have to compromise the chassis. Just so you know


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