B-MAX4 III Setup Thread
As requested here is your setup thread
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My first Seeting Sheet used at the Champions Cup (France)
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And here is my setup http://teamyokomo.nl/setups/BMAX4III...enburg_MIO.pdf
Used in a tight indoor, medium traction track with some jumps. |
Being new to Yoko, and new to 10th 4WD I thought I'd ask for thoughts and advice here on shock set up. It seems from what I can gather everyone tends to run with AE flat pistons, in 1.6/1.7mm x 2 hole variant.
It would be good to hear what people favour in piston and oil specification and where. I am currently building my kit and looking to run at on an outside Astro track. I am going to start with (as I have them) taper down AE 1.6mm x 2 in the front and 1.7mm x 2 for the rear and see how it goes. Thanks Sylvain for posting your set up, I think I'll base oil weights around yours and tweak to suit the outside temp, once I've converted the weights for Losi that is.. |
My current/latest setup for RHR astro:
http://courgette.jml.net/~neal/RC/Yo...2014-06-08.pdf |
Latest RHR Astro Setup
Here is my latest BMAX4III Robin Hood Raceway Astro setup
http://courgette.jml.net/~neal/RC/Yo...2014-08-21.pdf |
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only stagger ribs or cut staggers need the rim cutting, but i didn't like those on the car. |
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just having a look over your setup. You have put on the sheet that on the front you used BM-S1270 Yok orange And on the rear you have used YAS-700 Yatabe orange looking at the spring chart on petit rc the YAS-700 is a front spring. Did you use a front spring on the rear? :eh?: |
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Should be the YAS-1025 orange rear. http://www.rccarshop.co.uk/index.php...t-surface.html Kit Orange front spring BM-S1270 http://www.rccarshop.co.uk/index.php...ange-soft.html I kept coming back to this after testing. The Orange rear BM-S12100 is also good. http://www.rccarshop.co.uk/index.php...ange-soft.html I'll amend my sheet, cheers. Edit. Done: http://courgette.jml.net/~neal/RC/Yo...2014-06-08.pdf |
Bmax4 set up advice
Hi guys, picked up a Bmax4 ||| with L/W shortie chassis, I'm looking for a good base set up to use on med/high grip carpet. I've ordered the YAS front & rear springs & hard roll bar kits, it's the rest I'm after. Do you all run kit roll centres & toe in etc?
Any advice would be great Cheers Here's the car so far. Really like it so far! 👍 http://i467.photobucket.com/albums/r...psuwuzl60k.jpg |
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Yatabe Purple front, Yatabe orange rear. 550cst (roughly 45WT) front, 400cst (roughly 30WT) rear. 1.8 roll bar front and rear. 10k front and rear oil, however you could go 30k front and 20k rear as this is something the Yok drivers, mainly Lee, have been experimenting with lately and they like it. Just PM if you want more info. :thumbsup: Edit. I meant to add, we are using the 15 degree front caster blocks and the alloy rear. |
Thanks for that buddy, much appreciated! I'll get the spanners out & it done! :thumbsup: can't wait to run it!
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Does anyone have a setup for grass for the BMax 4?
I'm close to building my shorty version BMax and have built it as per the instructions with 35 front, 30 rear and Yoke orange all round, 10K front and rear diff. |
hi
Just bought a used BMax 4 III what a totally awsum car. Neale |
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What benefits are there of running the YZ2 rear arms? |
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Has anybody tried the YZ2 rear end on this car as yet? Raced mine Friday again and bagged a second overall, but found it over rotating a tad, and early on in the heat the rear was very loose.
Was running 650cst/Yatabe Purple front, 4mm droop limiters, 450cst Yatabe Orange rear on the shocks, but we run on Venoms, with 4WD cut stagger front tyres, so just wondered if the YZ rear arms and shafts i have lying about would bring up that rear bite somewhat? On the whole though, what fantastic car, my first two meetings with this car, and in 4WD have gone down very well. Lee |
What roll bars are you on?
YZ2 arms and shafts made it worse for me, but i'm not running on super high grip carpet or astro. if your track is med-loew traction, stick with kit or B4-008R1 arms. |
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Got a lot of front grip, just over rotates a fair bit on cold tyres! Carpet is medium in grip if say, overall though love the car, 4WD seems to suit my driving way more TBH! Lee |
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Try 20k front diff oil. |
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You could also run -2 camber the front. Your fronts are gonna make the car over rotate in comparison to the rear tyres you are using. Try dropping your rear roll bar to 1.5 also. |
Thanks Allan, and Neal, ill try those options first, i can drop a 1.8 rear bar in first off. Front hanger inserts are as per kit too.
lee |
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Ahh so both front inserts bottom and arrow out? Allan thanks a lot for all the tips, really appreciate the help, ill try all this this coming Friday!
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Yz rear for low grip ?? Just checkin as see lee ran yz rear end at rhr thats all |
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Lee |
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On the bmax, we have run the yz2 arms everywhere, low and high grip. On the yz2, we have been running the bmax arms on high grip. I think I'm the only one to have raced low grip, but I have been switching back to kit arms for low grip. |
With the +1 arms do you need to make any changes?
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On my bmax4iii, i found the narrower yz2 rear arms to be worse on sandy medium traction astro, and Yorcc gym floor low traction, so i went back to B4-008R1 arms. I've not run yz2 rear arms at RHR though. Allan, what's the technical reasoning behind the arm width for high or low traction? |
Allan, Neil, car was way way better last night. Changed the front hangers to arrows out, and i did leave the 2mm rear roll bar in, but swapped to Yatabe rear Purple springs, way better balance, managed to put it 2nd on the grid and came third due to driving like a right numpty, Finals arent my strong point lol, but for sure, car was great.
I will say on these 4wd staggers, the amount of front grip is bonkers, im running 4mm limiters in the front, may step that up to 5mm next week! lee |
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Cut the outer row off the staggers, that will help a lot. |
I am finding the same. Just bought a 4 III and first run on the weekend and it had a tone of steering and was also very loose and sliding in the rear. Kit setup basically with 2wd stagger ribs front and mini pins rear in yellow compound. Med/High grip indoor Carpet.
When you guys talk about 5mm of limiters in the front shocks are you saying 5 of the little Yokomo shock limiters ? Or an actual measured 5mm worth of shims ? As 5 of the Yokomo limiters would only be 4mm measured as they are only 0.8mm thick each. Kit has 2 in the front. I just put 5mm worth in and now I pretty much have no droop at all. Is that right ? Seems like a very extreme droop reduction. Excessively so.:confused: |
Didn't want to start a new thread but I think I read that some people were reverting back to plastic shock caps, if so apart from weight what's the reason?
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