Kyosho/Rudebits DB2

[Chris-S]

http://imageshack.com/a/img32/3246/wbv2.jpg


This thread is for build and setup discussion of the Kyosho/Rudebits DB2

Build Information



Setups

Blank Setup Sheet (Thanks Arn0@Petit) (http://www.petitrc.com/setup/kyosho/setupdb2/DB2_EditableSetupSheet.pdf)
Chris Slevin - West Bridgeford (Indoor - Medium Grip Carpet) (http://www.petitrc.com/setup/kyosho/setupdb2/DB2_ChrisSlevin_WestBridgeford20131207/setup.pdf)

[Chris-S]

Electronics Setups

http://imageshack.com/a/img826/6188/i0xa.jpg

[hazeandfizz]

Some images attached of my DB2.

I will add my setup sheet later this week.

Regards,
James.

[JustARcFan]

Finally ready for SS14 :D

[Fozzy1989]

Finally got my DB2 built ready for the new outdoor season, will post pics when my shell is painted.

Im just after some starter setups for astro & multi surface mainly grass, any help appreciated.

Cheers
Chris

[RogerM]

Chris-S and I are working really hard on this (Chris more than me in truth). We are currently debating shock pistons and how much extra weight is needed.

We'll both be running them at Kidderminster this weekend so will be able to feedback more after that.

[Chris-S]

Here is a link to what I am starting with on Sunday, medium grip astro and very bumpy track.
https://drive.google.com/file/d/0B1qmmkypuRNeM1piODktd0Jvbms/edit?usp=sharing


As Roger says, we have been playing with additional weight. The DB2 is a light car, which means you can easily add extra where you want it.
I have fitted a 45g zx5 spine weight underneath the prop and added 10g either side of the slipper. Not a fan of having additional weight at the ends of the car as you end up with a pendulum effect and snappy handling.
The additional weight improved the stability on the rough track.

[Fozzy1989]

Cheers Chris, will look at setting up similar to yours as my club track is extremely bumpy and rutted. With regards to adding weight I'll look at putting something down the spine and taking it from there. Are you running weight in the lipo tray too?

Thanks

[JustARcFan]

With the weight under the lipo the car is out of balance.

Did some testing with Orion gear and it's perfect without the weight.

[Fozzy1989]

With the weight under the lipo the car is out of balance.

Did some testing with Orion gear and it's perfect without the weight.
My thoughts initially were that it should be well balanced without, but Chris' photo looked as though it had some weight in the cradle where the lipo goes. Good to know about the Orion gear as that is what is going in mine too.

Thanks

[JustARcFan]

I also have a ZX5 40gr weight under the prop.

[tomtom]

I found on my DB2 for my low level driving skills than with its light weight the car is very very lively, could easily be overpowered (6.5 was powerful but combine with low weight it was hard for my brain to follow).
But where I found smallbores were ace on the DB1 and RB6 I found a soft Bigbores setup on the DB2 worked wonder to smooth it out, reduce tire wear and give the chassis an easy driving.

[RudeTony]

With the weight under the lipo the car is out of balance.

Did some testing with Orion gear and it's perfect without the weight.

How are you doing - May I suggest you weight your equipment again - the very reason the weight is there is to balance ORION electrics out - some electrics like Tekin are actually a fraction lighter but others are slightly heavier hence we also do a 46g.

Adding weight in the spine for sure makes the car drive easier but its slower on lap times. The balance of weight v speed has to be found for the individuals.

I will also add that we are now testing the weighted prop shaft like we run in the DB1. David Burton, Steve Brown are finding it really good - I am still stubborn though :)
This is available on special order

[RogerM]

Interesting what you say about the balance with Orion kit.

When I measured the Orion equipment it was about 240g for the motor/ESC/cap/switch/wiring and about 215g for the shortie lipo. As the motor / ESC etc. is further from the centreline than the Lipo it will generate more moment so the Lipo side would have to be havier to compensate for that moment so adding 34g under the LiPo just about does that ... I've actually got a 7g weight on my front Lipo strap post to balance my car out

[JustARcFan]

Hi Tony,

I'm good thanks., hope you are doing fine also.

Going to weigh everything again this weekend and do some testing.
The strage thing is that I checked the weight on 4 small balances and without the lipo weight it's perfect?
Anyway, going to check it out and let you know. :thumbsup:

CHeers


How are you doing - May I suggest you weight your equipment again - the very reason the weight is there is to balance ORION electrics out - some electrics like Tekin are actually a fraction lighter but others are slightly heavier hence we also do a 46g.

Adding weight in the spine for sure makes the car drive easier but its slower on lap times. The balance of weight v speed has to be found for the individuals.

I will also add that we are now testing the weighted prop shaft like we run in the DB1. David Burton, Steve Brown are finding it really good - I am still stubborn though :)
This is available on special order

[Chris-S]

Hi Tony,

I'm good thanks., hope you are doing fine also.

Going to weigh everything again this weekend and do some testing.
The strage thing is that I checked the weight on 4 small balances and without the lipo weight it's perfect?
Anyway, going to check it out and let you know. :thumbsup:
CHeers

Corner weighting needs to be done without the springs and all the shocks set at the same length, otherwise spring preload and spring weight will effect the readings.

[RudeTony]

Just on another note for everyones info.

We are currently testing a weighted prop shaft like the DB1 had.
We are also testing with a motor spacer to push the motor back in wet conditions. Although the car is good in wet conditions we want it even better. You will all also see the chassis (all of them) have been designed with the cut out going further back beyond where the motor normally sits.
We will report once back to back testing is finished as we don't want to put on the market something that has no advantage

Catch up soon

[JustARcFan]

Hi Tony,

you are 100% correct about the weight of the Orion electrics and the 34gr brass.
the car sits perfectly with this combo :thumbsup:

P.s When you find some time could you update the setup page on petit rc or post some set ups on your site?

Cheers!

[bomber]

Should I have had the lipo weight in the kit?

[bigt]

Yep 34g in the kit

[Fozzy1989]

Hmmm the guy I bought my chassis off didn't include the weight, that's why I was confused when I mentioned it a couple of days back. I'm taking it, it's just the 34g RB6 under weight shorty on the Rudebits website?

Cheers

[tomtom]

Yes it is

[bomber]

Yep 34g in the kit

Strange as I didn't I'll call Tony I'm sure he'll sort it out

[RudeTony]

Strange as I didn't I'll call Tony I'm sure he'll sort it out

Sorry Lee - can't get the staff these days - shouldn't say that as its my son - LOL - one on its way :)

[Fozzy1989]

Does anyone produce a undertray for the DB2. If not is this something your maybe looking at making Tony?

Cheers

[hazeandfizz]

I ran my DB2 at Torch yesterday and did a back to back on small/big bores.
Car felt so good I didn't want to remove the big bores but as they say the clock doesn't lie and the small bores were quicker.
In the final as it started to rain I was amazed at how well the car drove in the slippery conditions, it developed so much more traction than the DB1.

So glad to finally get this fantastic machine outside.

James.

[RudeTony]

Does anyone produce a undertray for the DB2. If not is this something your maybe looking at making Tony?

Cheers

Many are purchasing the DB1 tray - cutting 10mm round the outside and putting on top pf the chassis like we did with the DB1.
From a racing point of view this is the best way as it has no baring on ground clearance.
The direct answer to whether we are making an undertray is unfortunately not at the moment with no immediate plans for one either

Plenty of DB1 trays in stock though and we are calculating a discount for everyone this week :)