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Yokomo YZ-2

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Old 11-11-2021, 01:35 AM   -   Wikipost
R/C Tech ForumsThread Wiki: Yokomo YZ-2
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Welcome to the YZ2 Wiki!


Features for the lastest specification YZ-2DTM3.1
  • Long specification for dirt Main chassis Inheriting the chassis cut of dirt specification, it is longer with the same wheelbase as CAL3.
  • Aluminum front suspension mount.
  • Z2-DTM2B F2 body.
  • JConcepts ASTRO High Clearance 7inch Wing.
Features for the lastest specification YZ-2CAL3.1
  • Long specification main chassis for carpets. Long wheelbase that enables even higher speeds.
  • Steel front suspension mount.
  • Z2-DTMBL S2 Lightweight body.
  • Z2-CAL2W LMR Wing.
Common features for the lastest specification YZ-2DTM3.1 / YZ-2CAL3.1
  • The conventional position and the position of the suspension arm pin 1 mm higher can be selected on the front and back of the front suspension mount.
  • Bulkhead integrated side plate with increased rigidity.
  • The kingpin position has been changed with the new steering hub carrier, the axle position has been lengthened by 1 mm, and a steering stopper has also been added.
  • Battery holder that is easy to adjust according to the height of the battery.
  • Separate the rear mount base and upper arm holder to increase the flex around the rear and improve traction.
  • Z2-018-5 5-hole shock mounting specification Rear shock tower.
  • S4-S1S 3.0mm shaft specification front shock.
  • S4-S1M 3.0mm shaft specification rear short shock.
  • S4-008R5B L5 / LD Rear suspension arm (Φ3.5 pin).
  • Z2-01069 Rear universal shaft (69mm bone).

Setup Sheets can be found here

DT CA DTM parts comparison

YZ2T Tranny Conversion List

YOKZ2-300RFT
YOKZ2-302CT
YOKZ2-302T
YOKZ2-304T
YOKZ2-503I
YOKZ2-0023

CAL3 manual
DTM3 manual



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Old 01-31-2015, 10:21 AM
  #406  
mes
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Lee won 2WD at EOS Rd 2 in Berlin with his YZ-2, well done!
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Old 01-31-2015, 11:37 AM
  #407  
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Originally Posted by pumpkinfish
I thought the AE Reds were a carpet spring. What surface are you running on?
low/med bite indoor clay, ae reds are only a 3.9, next time out i'll play around with going back to a kyosho white or gold. the car responded well to the camber link change i made and gave me just what i had been looking for.
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Old 01-31-2015, 01:42 PM
  #408  
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Originally Posted by STLNLST
I changed my spur in 20sec. Went from 69 to 72 no problem.
Shakes head, 17.5 guys

I'll be dremelling that whole thing off next time I have the side pods off.


Here is my current setup. Set a new track record fast lap in the main. Just had a couple more mistakes than our local AE driver, but now have the speed to hang with him. Havent got the car as good in the 5 pack as my RB6, need to try a few more piston and oil combos and maybe have to add weight to the car.
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Old 01-31-2015, 08:07 PM
  #409  
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Had my first race with the YZ-2 today. Crazy amount of turn in compared to my B5m. I made a few changes, but still need to get the rear locked in more. What do you guys suggest to start changing to get more lateral traction so I can punch it out of the turns? I had to tip toe from the apex out or the car would loop on me. I attached my setup from today.

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Old 01-31-2015, 08:18 PM
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I was having same problem spinning out. I tried less Ackerman by adding another 1mm shim in the inside steering link. I may try the offset ball cup. Also raised the rear roll center. The car was easier to drive.
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Old 01-31-2015, 08:40 PM
  #411  
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Lightweight body came today it's a 16g difference then stock.
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Old 01-31-2015, 08:53 PM
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Originally Posted by pumpkinfish
Had my first race with the YZ-2 today. Crazy amount of turn in compared to my B5m. I made a few changes, but still need to get the rear locked in more. What do you guys suggest to start changing to get more lateral traction so I can punch it out of the turns? I had to tip toe from the apex out or the car would loop on me. I attached my setup from today.

I run 17.5 and I too feel the car could use more forward bite. I'm not spinning out however.
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Old 01-31-2015, 09:18 PM
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Originally Posted by pumpkinfish
Had my first race with the YZ-2 today. Crazy amount of turn in compared to my B5m. I made a few changes, but still need to get the rear locked in more. What do you guys suggest to start changing to get more lateral traction so I can punch it out of the turns? I had to tip toe from the apex out or the car would loop on me
You could move your rear arms and hubs forward, that could gain some forward bite.
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Old 01-31-2015, 09:19 PM
  #414  
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Try some pro squat! RF ^ Also try 2.5 or 0 degree front kick up insert. I had plenty of forward bite it was the side bite had problems.

Last edited by jake alton; 01-31-2015 at 10:08 PM.
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Old 01-31-2015, 11:01 PM
  #415  
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Add some weight behind the motor or below the battery. You are not running stock so weight should not be an issue.
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Old 02-01-2015, 07:17 AM
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If adding weight to the rear or front of the car, would it change the way the car jumps? Below the battery centered on the car or equal amounts front and back?
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Old 02-01-2015, 09:16 AM
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Originally Posted by jake alton
Try some pro squat! RF ^ Also try 2.5 or 0 degree front kick up insert. I had plenty of forward bite it was the side bite had problems.
Jake, I too felt it was the side grip I needed most. I had plenty of rip. I also noticed my slipper felt like it was fading towards the end of a run. I don't know if the Schelle is that much better or I had it too tight. I ran it to feel like my B5m's. I tried cutting the body holes out and it helped slightly.
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Old 02-01-2015, 10:32 AM
  #418  
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Originally Posted by pumpkinfish
Jake, I too felt it was the side grip I needed most. I had plenty of rip. I also noticed my slipper felt like it was fading towards the end of a run. I don't know if the Schelle is that much better or I had it too tight. I ran it to feel like my B5m's. I tried cutting the body holes out and it helped slightly.
I am firm believer in tires being a big part of the issue. It was suggested to try pro squat by raising the front of the rear inside hinge pin to gain more traction.
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Old 02-01-2015, 11:01 AM
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Jake, I agree tires are 90% of these clay setups. At my track we usually run slicks until the track drys out around mains time. I have been going between the Proline Electrons and AKA Typos. The buggy felt best on slicks to be honest but in the final qual, it was getting sketchy and guys were switching over to treads. I'll try your suggestions.
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Old 02-01-2015, 10:05 PM
  #420  
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My car was little loose but I just put 2mm washer on rear camera link on tower side, then I moved shock all way in on rear arm, short wheel base, and 0 spacers on front tower.
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