YZ-2 with Bmax4 III rear wishbones.

[dpackster1980]

Anyone thinking about trying the above don't, just get it done.

I ran mine for the first time with them on tonight and what a difference. It's a completely different car, yes the steering is still aggressive (this will be resolved with gull wing wishbones) but if the back end brakes away it's recoverable and no where near as servere as before. It seems to ride the bumps better too and easier to jump if you balls up lining it up. I was coming out of corners and able to get on the power earlier. The grip and side bite generated is emense. It's what the car should have been from the start IMO.

I was on the verge of giving up on the car thinking it wasn't for mere mortals but not now I'm loving it. :thumbsup:

[neallewis]

I've just done mine, but not run it yet. Looking forward to that.

Still think you had something wrong with your build Dave. You are the only person I've spoken to to who's had an issue with the car. Mortals, myself included have all improved with the car, out the box, but you struggled?

Glad to hear you sorted it now.

[PaulRotheram]

Does anyone know the exact figure of how much the car is made wider by? and where it is done?

I'm looking to upgrade to this, however im wondering why cant the car be made wider by spacing out the wheel on the adapter like how durango did?

[neallewis]

it's about 2-3mm/side at a guess comparing wishbones.

Widening at the hex/axel alters geometry and roll centre. it is better to move the outer wishbone pin out and keep it close to the wheel.
Durango did it the cheap way.

[steveproracing]

Moving out at the wheel helps with grip and to a minor extent stability, but moving at the inner pin gives extra roll stiffness as its altering the leverage of the wishbone.

[dpackster1980]

Does anyone know the exact figure of how much the car is made wider by? and where it is done?

I'm looking to upgrade to this, however im wondering why cant the car be made wider by spacing out the wheel on the adapter like how durango did?

You're looking at approximately 7-8mm.

[ralphee]

Been running this set up for weeks now, wouldnt go back. I tried it to help with high grip roll, and it worked like a charm, made the car way more stable too.
Have to say though, Neal seems spot on, all ive done is improve with this car, it can bite you, but rarely does and its even better with the wider rear stance.

Lee

[RDG 40]

Driveshafts sold out currently though 😞

[ralphee]

Yeah you need Bmax shafts too sadly.

lee

[shaun m]

You're looking at approximately 7-8mm.

Thought the bmax4 arms were only 1mm wider ? Soo 2mm total ?

[dpackster1980]

Thought the bmax4 arms were only 1mm wider ? Soo 2mm total ?

Compared mine and a fellow racers and its at least 3mm wider per side. Obviously cambers were different. I also compared the length when they were off the car prior to fitting. Did you? No.

I suspect that you're thinking of the Bmax4 + 1mm wishbones which would make the 4wd 2mm wider but would be daft on the YZ2.

[shaun m]

Compared mine and a fellow racers and its at least 3mm wider per side. Obviously cambers were different. I also compared the length when they were off the car prior to fitting. Did you? No.

I suspect that you're thinking of the Bmax4 + 1mm wishbones which would make the 4wd 2mm wider but would be daft on the YZ2.

Funnily enough i did measure them prior to fitting them , soo there was no need for the sarcastic comment was there?! , and no i wasn't thinking of the +1 arms , soo again before you try and belittle someone get your facts right ..

For anyone that may apreciate it , just measured both arms again
From hinge pin to outer pin , the bmax4 arms are a little over 1-1/4mm longer over the kit yz2 arms

[ralphee]

Thats what i kinda got Shaun, just a tad over 1mm, may want to try the YZ shafts? Cant see a problem as long as you dont have a lot of droop? Could work till some guys can get the Bmax arms?

Bests.....lee

[shaun m]

Thats what i kinda got Shaun, just a tad over 1mm, may want to try the YZ shafts? Cant see a problem as long as you dont have a lot of droop? Could work till some guys can get the Bmax arms?

Bests.....lee

:thumbsup: exactly that's what i thought :)

[ralphee]

Report back my good man haha! Ive just bought a Bmax4 factory, so, i need to try the rear bits i took off my YZ on that, love a bit of tinkering lol!

Lee

[sime46]

Handy if you run both cars. Yz2 arms and shafts onto bmax and vice versa onto YZ2. No worries. :thumbsup:

[Callum]

Ran the YZ2 at Tiverton yesterday, and finished 2nd in the A final. This car is awesome I was right behind first place just behind his bumper across the line!!
I did have one minor issue and that was a drive shaft popping out only did it twice then had no more issues. I was thinking possibly too much droop it did it after landing a jump I took the limiters out the shocks to see how it went but may have to put them back in.

All in all in very happy with it I could never get my KF as quick as the Yoke:thumbsup::thumbsup::thumbsup:
Callum

[washy13]

I've put the +1 arms on but not tryed it , is that wrong ?

[dpackster1980]

That'll be interesting to see how that goes. Would it be legal if you go wider again?

[rshaw1815]

I'm running wider wishbones with the longer rear dog bones. There is a still room in the box to go even wider if wished

[discostu]

The arm length is added between the most outer shock location and the hub which is good as the suspension shock geometry will stay the same as you change arms

[danDanEFC]

When fitting these rear arms, did people need to use some spacers in front of the arm.

[Danny Harrison]

I run +1 bmax4 arms on mine. Shimmed drive shaft in toward the outdrive as much as possible (bmax2 shafts)

Cars fantastic like this for me. Its actually the same width as a kf at the rear in this config.

[andys]

I'm confused!

What do i need to do this? I have both a standard YZ2 and a BMaxIII

[Fozzy1989]

BMAX4 arms and BMAX2 axles .

Cheers
Chris

[Allan1875]

BMAX4 arms and BMAX2 axles .

Cheers
Chris

Not axles, just the dog bone.

[KSN34]

can anybody tell me articlenumber at bmax4 wishbones used at YZ-2, and axles? and gullwing arms front and tower...thanx

regards
Kenneth from Norway

[Adam F]

So I can't just use the wishbones and dogbones from my BMaxiii on my YZ2 and vice versa?

[neallewis]

So I can't just use the wishbones and dogbones from my BMaxiii on my YZ2 and vice versa?

Yes you can.

I tried my bmax4-3 with the YZ2 rear bits, and put it back to the B4-008R1's.
Felt too loose at rear on the new sandy Batley astro.

[discothesnake]

Just run the bloody things the way they were meant to be! They'll be fine....

[Ashlandchris]

Brilliant :lol:

But we all like to tinker

That said, my yz2 has been superb, everywhere I've run it. Straight from box (with a little expert adjustment from Neil Lewis)

[skyaflake]

Out of the box the car runs brilliant. With a bit of adjustments you can drive it very fast around the track.:D

[Adam F]

Seeing as pretty much the whole team have swapped wishbones now, there must be something in it... so if you have the parts already I don't see the harm in trying it..

[RDG 40]

Shame the parts are not available though which is shame currently ive tried for weeks to get rear shafts and bones

[Adam F]

MB have the complete Bmax2 rear shafts if any good...?

[RDG 40]

Finally got some shafts B2-010RB

So i need to fit these with B4-008R yea?

I gather from comments this stabilises rear end etc and also would be better in low grip, aswell as helping drive in high grip.

So

If i run yz2 rear arms and shafts on the bmax-4iii does this reduce rear grip? Just have not run car and want to know best setups for best conditions. I noticed neil said if its sandy and loose its better stock arms and bones.

Thanks