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R/C Tech Forums Thread Wiki: Yokomo YZ-2
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Old 02-11-2015, 09:20 PM   #496
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Originally Posted by Racing4Evo View Post
I have a comparison here. The top arm is from the YZ-2 and it is definitely shorter.
Shorter arms, bigger hex... I know some team guys have tried that on the 4wd but not sure what difference it makes to move the width outboard?

Which de setup set works on the yok's by the way, see in your pic you are using one?
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Old 02-11-2015, 09:23 PM   #497
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I'm back to my bmax 2 MR V3 factory lol mouth full
It's just to me it has way better traction for low-medium bite
My Yz was great but side bite just wasn't there ...if you are on higher grip it's great but for me I couldn't drive it hard at all I just had to cruise.
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Old 02-11-2015, 10:36 PM   #498
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Originally Posted by DaveG28 View Post
Shorter arms, bigger hex... I know some team guys have tried that on the 4wd but not sure what difference it makes to move the width outboard?

Which de setup set works on the yok's by the way, see in your pic you are using one?
You can use the set configured for the B5M. I just have two of them with deep hex inserts that I use for the front and rear.
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Old 02-12-2015, 04:37 AM   #499
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I'm back to my bmax 2 MR V3 factory lol mouth full
It's just to me it has way better traction for low-medium bite
My Yz was great but side bite just wasn't there ...if you are on higher grip it's great but for me I couldn't drive it hard at all I just had to cruise.
I run on that exact type of surface and have no problem with side bite. What setup were you running?
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Old 02-12-2015, 07:14 AM   #500
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Originally Posted by Racing4Evo View Post
I have a comparison here. The top arm is from the YZ-2 and it is definitely shorter.
When you put hinge pins in and measure (the proper way), they measure the same length.
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Old 02-12-2015, 03:54 PM   #501
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Ti screw kits are in stock now for the YZ!!!!

http://www.amain.com/protek-rc-yokom...kit-88/p424168
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Old 02-12-2015, 04:31 PM   #502
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so foound one these at Baniza place in Japan. 374 shipped. be here next week.

Excited to try it out. I see the b5 fronts and rears work fine correct?

Anyone working on maybe a carbon chassis?

Avid clutchs fit or got to use the RB6 topshaft still?
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Old 02-12-2015, 06:43 PM   #503
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Anyone working on maybe a carbon chassis?

Avid clutchs fit or got to use the RB6 topshaft still?
Car is already underweight in some configurations.

Topshaft is a different tooth count. Heard there is a company already in works for a topshaft to fit Triad/Nova spurs.
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Old 02-12-2015, 08:03 PM   #504
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Originally Posted by WillS View Post
When you put hinge pins in and measure (the proper way), they measure the same length.
Sorry to call it out, but on Jan 26th when I mentioned in this thread that the YZ will pop driveshafts if one runs it at full droop, and to correct it one can run BMax driveshafts, you had commented that you had measured the distance over the pins and the YZ arm was 2mm shorter and that the configuration wouldn't work. So which is it?

Upon measuring myself, the YZ arm has a center to center distance that is 1.42mm shorter than a BMax-2 Arm. That's comparing a brand new out of the package YZ arm to a new B-Max2 arm.

FYI - I ran the YZ with full droop (plus a little more), with the 62MM driveshafts with no issues using the YZ arms, by the way, and just about TQ'd the first night out with the car.
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Old 02-12-2015, 08:26 PM   #505
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Sorry to call it out, but on Jan 26th when I mentioned in this thread that the YZ will pop driveshafts if one runs it at full droop, and to correct it one can run BMax driveshafts, you had commented that you had measured the distance over the pins and the YZ arm was 2mm shorter and that the configuration wouldn't work. So which is it?

Upon measuring myself, the YZ arm has a center to center distance that is 1.42mm shorter than a BMax-2 Arm. That's comparing a brand new out of the package YZ arm to a new B-Max2 arm.

.
It is very possible that I grabbed the bmax4-iii arm and measured it by mistake.
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Old 02-12-2015, 08:34 PM   #506
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The two rear arms are definitively different lengths. The older arm from the BMax2 is longer. I'm not sure what you mean by proper measuring method. I can only think of one way to measure length from the inside pin to the outside pin.
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Old 02-12-2015, 08:37 PM   #507
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Ok Rear arms as measured hinge pin to hinge pin with the calipers I own:

YZ-2: 75.53mm
BMax2: 76.86mm
Bmax4-iii: 76.86mm

These will be the measurements I use for my notes.

EFFECTS OF TRACK-WIDTH ADJUSTMENT

FRONT TRACK-WIDTH
Wider
• Decreases front grip
• Increases understeer
• Slower steering response
• Use to avoid traction rolling
Narrower
• Increases front grip
• Decreases understeer
• Faster steering response

REAR TRACK-WIDTH
Wider
• Increases rear grip at corner entry
• Increases high-speed on-throttle steering
• Use to avoid traction rolling
Narrower
• Increases grip at corner exit
• Increases high-speed understeer
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Old 02-12-2015, 08:55 PM   #508
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For future reference. This could be a good tuning option. YZ-2 owners can try the old arms so long as they are mounting the shocks on the rear of the tower.
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Old 02-13-2015, 04:52 AM   #509
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Your tuning will also have to change by the look of it. The older arms are off set half a hole to the outside compared to the yz-2 arm. So that will have to be taking into account
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Old 02-13-2015, 07:09 AM   #510
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Quote:
Originally Posted by WillS View Post
There is a full write up of parts in the BMax2 thread. Check the first page out, we locate all the information on there so it can be found easily. As of right now the gullwings are only possible until an option for the shock tower allows for the flat arms to be used.

If you notice on Yokomo Europe they now claim the bmax4-iii stock rear arms to be 1mm longer option. They are also optioning the YZ shocks on the bmax4-iii. When the parts get here for the shocks I will be getting them to build up a set for my bmax4 and testing out the improvement that is said to come from them. I really would like to see an option for brass toe blocks. I will just have to wait until Yokomo Europe comes out with them or get a set machined.
Might be some coming out soon. I made sure Rocket RC got a few items that he can work on. I will find out time frame after parts get there.

What would you like to see made?

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Outdrives have been sent out to get machined. Lets hope they are reduced to 10-12g a set.
I just hit mip on there facebook page and ask about the 17.5 puck systems. We do not stop email them and ask on facebook. It will take a bit but there get the hint.
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