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-   -   Rallycross RX at Mendip (http://www.oople.com/forums/showthread.php?t=178638)

mrspeedy 04-04-2016 06:54 PM

Rallycross RX at Mendip
 
Time for a bit of a edit on my original post now that we actually have peeps with cars that want to race .... and still growing interest in the class !!!

So, some general guidelines for the class to get us up and running ... and this is only guidelines mind !!

We want to follow full sized Rallycross RX as close as much as possible as it really is a great class .. ie. big power, low grip, short multi surface tracks and lots of proper racing !!!

So the race format will be four qualifying rounds of 6 lap races, using the round by round system, with 3 rounds to count and 1 drop score. This will give points in each round that count towards the main finals.

All starts, will be mass starts, (yay old school !!) comprising 2 rows of 3 cars, and these will be switched each qualifier ...

Finals ... not worked that out yet but most likely a slightly longer race than qualifying, so maybe 8 laps .. and depends on the track ..


.. and we'll also have the "joker" lap ...


Car specs -

Shaft drive rallycross style buggies converted to run on mostly tarmac tracks .. no belt drives .. 4wd recommended !!

Cars must run rally or rallycross style bodies .. or generic types like the Hyper GT rally or Protoform rally bodies ..

Max 3 cell lipos ... there was some questions about whether we have to run hardcase lipos but the word from the BRCA is that soft case lipos are OK, we would recommend some extra layers of heatshrink on these for some extra protection ..

Motors - sensored or sensorless , max 2400kv .. these are bonkers fast so not sure why anyone would want anything faster !


Tyres - after some research, our ideal spec tyre, is the GRP Revo cut slick rally tyre in S4 compound. These look realistic and give good grip when they get up to temperature but are still slideable ... and are said to last a whole season !!!!!

If you only have kit tyres .. its not a problem .. run what you have for the time being ..
Hopefully our local model shop RC Octane will be able to stock tyres for us in the near future ..

Think that's it ... please post or message me if you need any info or have ideas ..


Below are the club race dates that we'll be running Rallycross on during the summer -

15th May

19th June

3rd July

17th July

21st August

4th September















Some of you might have seen me playing around with this on the onroad track over the last couple of months ...

and at the weekend of the 4wd regionals there was a LOT of interest in the car.... and several guys talking of buying cars and running some Rallycross RX style meetings using a shortened version of the the onroad track.

So I thought I'd share some links for cars, tyres motors etc .. and see if we can get this off the ground !!

http://i.imgur.com/XWbdN96.jpg?2

mrspeedy 04-04-2016 07:31 PM

Mine was a 1/8 buggy that was converted to run onroad, but there are a few rally style cars that come ready to run ..

Cars like this -

http://www.rccaraction.com/wp-conten.../basher_cc.jpg

http://www.hobbyking.co.uk/hobbyking...arehouse_.html


or this DS3 style ..

http://1.bp.blogspot.com/-p-qtjWxV4o...RallyCar-1.jpg


http://www.the-border.com/HobbyTech-...ce-Roller.html



Hyper GT rolling chassis ..

http://www.wheelspinmodels.co.uk/i/229370/

http://www.ofna.com/images/hyper-gt-...t-side-750.jpg

mrspeedy 05-04-2016 07:10 PM

Here's a video of some 1/8 rallycross from France ??

Gives some idea of how they handle and how fast they are !!!

https://www.youtube.com/watch?v=4fORydB-GcU

mrspeedy 05-04-2016 07:30 PM

... and a few links to the gear that I've used .. you'll see how cheap it all is ...

and speed wise .. running at the weekend my car was only a little slower down the straight than a local National TC a finalist running a 4.5 motor on boost !!! and probably quicker out of the corners !!


This my motor - http://www.hobbyking.com/hobbyking/s...or_2400KV.html


and fully programmable 150 amp speedo -

http://www.hobbyking.com/hobbyking/s...arehouse_.html


Lipo -

http://www.hobbyking.com/hobbyking/s...Search=Z58003s


Tyres area nice realistic GRP cut slick, I use the S4 compound, they grip pretty good but still allow a degree of drifting :)

They work out around 33 a set posted, and are said to last a whole season !!!

http://www.grpgandini.it/index.php?p...emid=6&lang=en

swords 10-04-2016 07:26 PM

This looks great, have raced 1/10th off road and 1?8th nitro off road in the past but havent raced for a couple of years since I retrained as a train driver and moved house, but this would definitely convince me to start again.

mrspeedy 11-04-2016 08:02 PM

There's a few of us have these now, so hopefully we'll soon have some organized racing with them !! :woot:

I really enjoy running my car around, only been on my own so far, well I've practiced with a few TC's but the 8th tends to scare them off the track !!!

Keep an eye on here or Mendip RC Raceway FB page for more updates ..

carrot 12-04-2016 07:40 AM

Is there anyone who brings the tyres into the uk?

mrspeedy 12-04-2016 02:16 PM

Not that I know of, there's some on ebay but its cheaper to buy direct from GRP in Italy !!

mrspeedy 15-04-2016 04:56 PM

A short vid of Dan Hardings first run with his shiney new Hyper GTe - https://www.youtube.com/watch?v=aPAh-kSigqk

jonathan may 16-04-2016 04:27 AM

http://www.rccarshop.co.uk/wheels-ty...1-8-buggy-pr-p


Schumacher venom will propaly be quite good

wezzer 18-04-2016 12:20 PM

what are the Kit tyres like on the Hyper Gt si? just for our info ;-)

RobPaynter 18-04-2016 01:33 PM

Would this be eligible ???
http://shop.absima.com/RC-Cars/TEAM-...&t=3&c=44&p=44

mrspeedy 18-04-2016 06:46 PM

Quote:

Originally Posted by wezzer (Post 946586)
what are the Kit tyres like on the Hyper Gt si? just for our info ;-)

They're seem to grip pretty good .. but I reckon you'd kill a set in a meeting !!

mrspeedy 18-04-2016 06:51 PM

Quote:

Originally Posted by RobPaynter (Post 946596)

These are about 30mm longer than the chassis we run atm .. but yeah I don't see why not !!

mrspeedy 18-04-2016 06:57 PM

Quote:

Originally Posted by jonathan may (Post 946391)
http://www.rccarshop.co.uk/wheels-ty...1-8-buggy-pr-p


Schumacher venom will propaly be quite good

Maybe, would be great to run Schumacher tyres but It doesn't say if they're belted so I'm guessing NOT !! and considering the pretty high speeds I think a belted tyre is a must .. but try a set Jonathan let me know how they go ..

mrspeedy 19-04-2016 03:20 PM

link to some pics from our first test run on sunday - https://www.facebook.com/media/set/?...9926303&type=3


The Hyper GT seems to handle really well out of the box with a few setup tweeks to diff oils ...

Danosborne6661 26-04-2016 08:23 AM

Excited for mine to arrive now! Full heat of 10 of us soon?! :thumbsup:

Would it be worth us getting a list of names together with people who now have a car? Just so others can see the number of people that will look to be racing them?

mrspeedy 27-04-2016 03:22 PM

Please check out the start of my first post for details ..

mrspeedy 27-04-2016 03:57 PM

John at RC Octane will have 6 of the Hyper Gt's coming in very soon if anyone is interested .. these seem to be very good straight out of the box and great value too .. :thumbsup:

mrspeedy 28-04-2016 05:54 PM

A little update to show you the runners and riders in our rallycross class ..

Si - Ofna GTP
Dan O - BSR Rally (basically Team C buggy with a different name !!)
Andy G- BSR Rally
Ben G - BSR Rally
Dan H - Hyper GT
Steve H - Hyper GT
Brian B - Hyper GT
John H - Hyper GT
Joe W - Hobbytech STR8 .. or maybe a Hyper Gt .. or ...
Jay - Associated Pro Rally
Rick - BSR Rally

roderzz 28-04-2016 07:03 PM

The more I look at these the more I want one....

mrspeedy 28-04-2016 09:59 PM

:thumbsup:

They're a lot of fun to drive ... racing them will be amazing !!

If you're local to Mendip come along for a look ... dates we're running are in the first post ..

mrspeedy 02-05-2016 08:01 PM

Rallycross on board footage - https://www.youtube.com/watch?v=l6YMiaoDtdg

tonydevon 02-05-2016 08:12 PM

Will do my best to get al9ng and try this. Looks great fun and lot less serious than buggies :)

Danosborne6661 03-05-2016 08:02 AM

For people looking for bodyshell options, I quite like the look of this one from Protoform named the PFRX :thumbsup:

http://www.ebay.co.uk/itm/2721130600...%3AMEBIDX%3AIT

http://i.imgur.com/hDGWEAa.png

Just out of interest. Is anyone considering using a short course truck for the rally cross class? Being the same dimensions, you can add a body shell and some 8th adapters for tyres!

Danosborne6661 03-05-2016 10:30 PM

11 of us with rally cross cars now :thumbsup:

mrspeedy 10-05-2016 01:37 PM

1st round of Rallycross RX at Mendip THIS weekend !!!!!!!!


.... can't wait :woot:

Danosborne6661 11-05-2016 01:02 PM

Best finish building my car! Rallycross is on!

mrspeedy 18-05-2016 04:39 PM

Here's a link to a "speed calculator"

I've used this to work out overall top speed, and initial gearing for my cars setup, I aimed for around 45mph and this seems to be about right for rallycross on Mendip short track ..

http://www.scriptasylum.com/rc_speed/top_speed.html

mrspeedy 22-05-2016 04:11 PM

Our first round of Rallycross RX proved to be pretty popular straight off with 8 drivers turning out to run the 8th scale beasties !!!

The Hyper GT's looked good straight out of the box with most using the standard electrics listed above ...

The BSR's looked to run quite well and should go even better with a few tweeks .. some softer Hyper GT springs should work well as the std car is quite hard ...

Nearly everyone was running on the amazing GRP S4 compound cut slicks ... grip was great after a couple of laps on the tarmac .... but not quite so good on the grass :lol:

.. and here's a short vid of the days fun and frolics ... apologies for the dodgy editing !!!

https://www.youtube.com/watch?v=Ia9r...ature=youtu.be

mrspeedy 26-05-2016 05:34 PM

Nearly 1000 views :woot:

Someone's interested !!!:thumbsup:

mrspeedy 31-05-2016 08:11 PM

We need to talk bodies seeing as there really seems to be a growing interest in this class.

Choice isn't great really, stock Hyper GT actually looks better painted up in some decent colours in the flesh ..

https://scontent-lhr3-1.xx.fbcdn.net...60541750_o.jpg

mrspeedy 31-05-2016 08:13 PM

Associated Pro Rally body .. although a little pricey does a very good job of looking like the VW Polo rally car ..

https://scontent-lhr3-1.xx.fbcdn.net...25673310_o.jpg

mrspeedy 31-05-2016 08:23 PM

Hobbytech DS3 would look amazing painted up in Solberg colours .. need to save up a bit first !!!

http://img.xooimage.com/files90/5/d/...3--3d1c54c.jpg

terry.sc 31-05-2016 11:28 PM

There are plenty of body options available from Delta Plastik
http://www.deltaplastik.it/?p=prodot...at2=11&cat3=15

mrspeedy 01-06-2016 10:24 AM

:thumbsup: and not a bad price either, even shipped from Italy !!


The italians seems to have the majority of good body options ..

BYSM make some tidy bodyshells ..

Scooby -

http://www.bysm.it/immagini/7gt/100D0432.JPG

mrspeedy 01-06-2016 10:27 AM

Audi would paint up nice in Mattias Ekstrom Red Bull colours

http://www.bysm.it/immagini/9gt/100D0439.JPG

mrspeedy 01-06-2016 10:28 AM

Shop link - http://www.rcmodelstore.com/body-dec...y-c-32_34.html

VanRoy 03-06-2016 07:16 AM

Looks Good, will have to save some pennies and get one in the near future .... will stick to our 1/10th Rallying at the Mo ...

mrspeedy 03-06-2016 05:02 PM

Good to hear that :thumbsup:

They're not expensive to get up and running, plenty of 2nd hand stuff on ebay as usual, thats where mine came from !!


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