Ultima RB5 setup discussion
 

Sticky thread for RB5 setup discussion - please try to keep the Setup thread for posting setups only :)

SET UPS
 

Hi Jimmy&Woodsy,Thanks for you great reveiw as always,could you please post a set up for racing on grass with one or two jumps plus a very small bit of tarmac.I am just building theRB5 at presant I intend fitting carbon diff &thrust balls any other mods as I build, will have JR8235 servo MRT speedo checkpoint 12\2 or moneypoint depending on track etc, advice needed urgent, keep up the good work,TEAM OOPLEyou are super stars to the likes of me.
:o MARTIN:mad:

For the guys that ran at Bury today please let me know how your cars where? I would love to know and may be we all might be able to get nearer to that goal we all want. Thanks.

I stood the front shocks up (because I couldn't be arsed to change the oil) and shortened the front arms like you said, and it was much more responsive, yet more forgiving on the faster stuff (like the hill in the middle of the track).:)

I'm surprised that there hasn't been much activity on this thread :o

I finally got to race mine on the weekend at my local track and unfortunately the performance of the car wasn't as great as I'd hoped.

It seemed to handle well and had plenty of on-power grip but the car really had a lot of off-power oversteer - basically as soon as you back off the throttle it just pivoted on the front end.

I'm hoping that it was due to having too soft tyres on the front because anything I adjusted only made a minor difference.

I only have 1 set of front rims, hence I couldn't try any other tyres.

This was on a mildly bumpy, low grip loose dirt track.

Hopefully i can get some more rims in time for the next raceday.

well, iv ran mine for 2 race meetings now, and to be honest i dont know how to set a car up or indeed what i need to do to make a car behave how i want...

However i have experimented with the shocks, heres what i found....

I originally didnt have any spare springs, so i decided to use 50wt oil and std springs, the car was very safe and jumped ok, however it had no low speed steering and really pushed wide on the slightest hint of power.

I then acquired some genuine Kyosho lime green springs that were 1 grade higher than the stocks, i dropped the weight of oil all around to 35, and the car was immediately better but oversteered on grass and on tarmac, the back end would just snap back off throttle. To reduce the steering i tried losi black springs at the front. These ideally needed cuting down as they were too long, but i thought id give it a go. The car was indeed better, it understeered on power but could quite easily be driven around Southport. The car also jumped really well and went over the rear bumpy part with ease.

I will in future cut the springs down and also try Losi blues.

Hope this helps anyone.

Col.

Just to update, for those that dont know ....Southport is an astro track with grass and tarmac, it is also quite bumpy in places :cool: and has a range of small jumps just to catch you out lol.

I also ran full 2wd yellow minispikes all around ( uncut ) , I will also try the Kyosho yellow limey green springs with the outside row of spikes cut off too see if that helps with the cars snap back off power attitude.

Col.

I've been running 35wt front and 30wt rear oil.
first with the kit springs and the car felt planted on grass, tarmac, astro etc.
a slight hint of understeer on tarmac/concrete with the back end kicking out only on dusty sections, but that is mainly down to car control (and a 8x2 motor) more than set up.

Changing to associated blue fronts and silver rear helped get more ride height as the kit springs limit the ride height due to the fact that the threads on the bodies only go half way down the shock. other wise I would've stuck with the kit springs.

I'm still experimenting with the diff and the slipper, so any help from more experienced drivers would be helpful. I cant tel (on track) if its the diff slipping or the slipper. I think at the moment, I may have too much slip on the diff.

other than that i'm finding it a nice car to race with (what i think) a more comfortable feel than the B4.

Guys, I have been testing today and i think i have found it? my RB5 felt like a B4. WOW. I have been playing with pistons and oils. I am SOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO excited. I still have an issue with the wheel base but WOW. Guys please come over next weekend and have a chat. If anyone is coming. :D :D :D

Please tell....

ditto!!

spill the beans!

Just wait till this weekend so I can proove it. The all will come clear.;)

He's put a kyosho shell on a B4 :p :D

It was very close to that, but after a few changes it did feel like a B4.

shell AND wing then? :confused: :D

well? any news on what it was?


......ahh, I think I know.

Hmmm, well iv stuck with losi balck springs (front) and now that the rear tyres have worn (quite a lot lol) the car is getting there, considering that the rear tyres have worn out , it still generates quite a lot of grip.

I also experimented and used an old zx5 wing that i have which has had the back flap cut right out ( less downforce ) i was surprised by how much this imprroved things.

Col.

Aww do tell Stu.

:D

Where did you go Stu - we were expecting you at Southport for the GP - you missed a good day.

I have a track in the back garden. I didnt come to Southport due to I have one week left for the Nat and I need to get it perfect so spent the day down there painting.

Painting the red?

Or un-painting the amusing graffiti?

WOW Woody, a track in your back garden :o :o I would love that. I don't even have a track within a sensible distance of me that I can practise on. I'd only be able to make a very little one in our garden, and I don't think Marshal (my rabbit) would really like to share the grass with my Pred! :D :D :D

Got any pics? :confused: :confused:

Haha, thats ironic, a rabbit called MARSHAL! :D

You wouldn't be out of place then if you crashed. just call its name and it'll come hopping along and turn your car back over.:D

Naaaa, he'd be too busy giving Julie's slippers a right good seeing-to, again.

Motor setup
 

Hi all,

not sure if this si the right forum for this but it is kind of set up related!?

I was wondering what are suitbale motors to run in the car. I have been using a revolution jansen edition 9x1, and although its a rocket I am killing the motor through overheating. Do any of you know any tricks for trying to keep the temp down a bit (maybe some suggested gearing? I am using 22 pinion with kit spur), or whether there are any heatsinks that will fit (I have not found any)??

Loving the car though, finished 12th at Southport GP I think, and thanks to some broken shocks that was with traxxas trx3 front dampers on the car!

Cheers,

Dave

Dood! you are well over geared. you should be running about an 17/18 pinion for that motor.

out of curiosity, what gearing would you reccomend for a 8x2?

you know I'm crazy.:wtf: its what I'v been running, but I'd just like some idea of gearing. just make sure I'm getting it right.:rolleyes:

8 turn! you nutter!:D

STU SET UP FOR GRASS
 

Hi STU, YOU are doing wonders with your RB5, could you please give a ball park set up for my car to run on grass. the problem is I race in ABERDEEN and work in LONDON and only have race day to set up car. So your advice is urgently required. Will put ATOMIC CARBON towers on when available thanks MARTIN.

P/S have got a 501X also.

Good luck on beeing a farther.

SPRINGS
 

Sorry STU, Could you please tell me what springs to get so I can order them for next sunday. MARTIN

yep, thats me!!

It's not to bad actually, got things turn down on the tranny though to smooth it out.;)

Hi Martin.just a quick one as there is a full set up coming. Losi pink springs on the rear and Losi blue on the front. If it is flat gras maybe go to red Losi springs on the rear. This is a must but a lot of weight in the front, I have a brass bulk head which is about 75g. You do have to cut the front springs to fit. Please be patient as there is going to be a full report adn set up coming very soon. Keep going dood and hope you enjoy it. Good luck.

Got my RB5 working well today using Kyosho springs and kit only parts. Sadly i am not the best of drivers, but the car was tried by a better driver than myself and the feedback from those watching was positive, was actually 13th in round after round 1 and finished 10 places above my last regional 2wd finish and got my best 2wd finish of the year so far. If interested i wil do a proper set up sheet, Jim76 on the forum also ran his car to a 10th in the A finish which was his best result this year in 2wd first time out with the car, with a very similar set up to mine.

Well done guys. Keep up the hard work and I hope to have a set up for mine very soon. Trust me it is coming.:D

yeah, had a good day today. First time out with the car. Put 30g lead in the nose, atomic shock towers and ceramic balls. Started on kit springs on the grass track. Had awesome amounts of front end, the car was really quick through the chicane section. Was a bit of a handful to get the power down so went to a softer rear spring which helped a bit but was still a bit power slidey. Wasn't helped by the fact i forgot my rear rims so ran all day on one set of already worn yellows!
Managed to stick it A10 in the last round beating the likes of Nigel Buck and Paul Timberlake so was delighted.

Well done Jim. What do u think of it REALLY?

I didn't get the chance to run the A.C. shock towers this weekend as looked out of the window, saw the rain and fog (and not much else!) I decided to stay warm in bed on sat morning instead of going to race. Wish I hadn't though as they had a pretty good day for weather.:rolleyes:

I'll give 'em a good thrashing at york though.;)

cheers Woody. What do you mean what i think of it REALLY?! compared to my old B4 i couldn't complain at all. Don't think i would have been quicker with the B4, in fact the front end of the RB5 felt much sharper.

In fairness Waynes (pro4nut) car handled better than mine when we swapped in practice. His rear end was very stable but still responsive up front. I think ultimately mine was quicker round the track as i could get the back end round easier, it was just much harder to keep in line for 5 minutes compared to his.

i did have a front wing on mine that i knocked up quickly because everyone was saying the car has a tendancy to understeer. i didn't actually run with out this for a comparison of it's affect.

Any news about the Atmic Carbon Shock Mounts?
 

Hello everyone,

I was just wondering if there are any news about the Atomic Carbon shock mounts?
Are they available yet?

Best regards,
Chris

You can just email atomic and they can make a set for you.

Also im not sure how many know but the Roar Electric Offroad Nationals were over the weekend. Team Kyosho had a very strong showing. In 2wd stock i think it was 4 cars in the a-main. Joe Pillars took the 2wd 19turn title with his new RB5. There were 5 Kyosho cars in that a-main. And finally Ryan Lutz placed 6th in 2wd Mod with his RB5.