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Schumacher's new K2 4wd buggy ..!

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Schumacher's new K2 4wd buggy ..!

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Old 08-11-2016, 07:12 AM   -   Wikipost
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Welcome to the Schumacher K2 Wiki!

Please feel free to add tips and tricks as well as any information that you would feel is beneficial for everyone to know.

Introduction and Pictures Introduction and Pictures

ElectronicsSetupElectronicsSetups

Setup SheetsSetup Sheets

EmulsionShocksEmulsion Shocks

Tony Newland Gear Diff BuildTony Newland Gear Diff Build

Help I Keep Breaking Front Arms

With the K2 Schumacher sarted using an adjustable hub design that required
a relief cut in the arms for the steering knuckle to clear. The easiest solution
until a revised arm is to run the old style arms without the relief cut. Run the
hubs in the High position and set your steering end points down so the steering knuckles don't hit.

SCHU3597
SCHU3407 MED Flex

There is a newer batch of the SCHU3407 wishbones which correct the weakness in the previous front arms.

Suggested upgrades/spares
Strongly suggest to buy 10 alloy front alloy pivot blocks-U3556 the A & B front plastic pivot blocks-U4798 will break soon.

Have some shock seats spares, alloy v1-U3611, plastic-U3937, alloy v2 (off-road)-U4890

Have some spare shock shafts available U3668 & U3669
MIP pucks an Excellent option!

Misc

Other wheels that fit apart from the Schumacher wheels
Losi 22-4 wheels will fit on the front the rears will work as well!
AE b4, b5 & b6 will fit on the rear
Be sure to lock tight the track screws and rear strap this is a must!!!

AE (12mm) and KYO fronts will work with .5mm spacer - available through AVID


Don't buy the purple titanium turnbuckles as an upgrade there thread is too small and they wander too much. Lunsford Super-duty titanium turnbuckles fit very well they are 3.5mm threads. Get the 1 3/4", 2 1/8" & 57mm lengths. I did not replace the Centre Track Rod.

** When running the Super Duty turnbuckles with the stock captured ball ends, be sure to check for binding in the front steering and camber links after each run - tumbles and glances off the pipes cause them to flex and slightly twist and can bind up the front suspension ... The fix? - simply take a turnbuckle wrench and twist the link back and then forward to it's original positon .. consider doing this as a maintenance step after each run ..

Suggested Gearing

5.5 - indoor high bite clay 83/20 (+/- 1 tooth for layout and conditions etc)
6.5
7.5
8.5
9.5
10.5
13.5 At SRS Arizona I ran 75/28 buggy was quick! RCM lockout worked great!
17.5 - FDR between 5-6 depending on track. E.g. 35/66 down to 30/69 slipper eliminator in use. Different options within the thread. I use B5M exotek eliminator and file it to fit.

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Old 06-15-2016, 10:14 AM
  #586  
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Originally Posted by Cmgreen
Still stick with my first quote, Don't crash and you will be fine :-)
I only get to practice on Sundays with the Shortbus trucks and 1/8 scale cars on the same track. Instead of don't crash, how about actually improving a fragile part instead of re using the same one in every kit for four generations? And what's up with the front inner hangers being made of plastic? That's a shameless way of getting people to spend money on upgrades. I love my Shueys, but some things about them really bother me.
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Old 06-15-2016, 12:35 PM
  #587  
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Default FAB assembly

Anyone got the assembly sheet for the FAB? K2. Had to piece one together from parts. Thanks!
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Old 06-16-2016, 09:12 AM
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The FAB ruined my car. I took it off after trying to get it to do anything but make my car swap ends under braking. I even had it fully tight and still, nothing good came of it. I can post up the instructions later though.
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Old 06-16-2016, 03:21 PM
  #589  
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Originally Posted by Mopar
Anyone got the assembly sheet for the FAB? K2. Had to piece one together from parts. Thanks!

scanner took a dump so we did a couple of pix quick ..


..p
Attached Thumbnails Schumacher's new K2 4wd buggy ..!-20160616_181657.jpg   Schumacher's new K2 4wd buggy ..!-20160616_181651.jpg  
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Old 06-16-2016, 06:05 PM
  #590  
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When will the new spring retainers and rear 2.5 upper decks be in stock?
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Old 06-16-2016, 08:44 PM
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Originally Posted by DiscountRCStore
scanner took a dump so we did a couple of pix quick ..


..p
Thanks! That helps a lot.
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Old 06-17-2016, 04:47 AM
  #592  
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Originally Posted by LT
When will the new spring retainers and rear 2.5 upper decks be in stock?
We have a couple sets of each left from our last shipment

U4890 - Spring retainers
U4947 - Rear Decks

..p
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Old 06-18-2016, 09:58 AM
  #593  
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Need suggested gearing setups for the wiki, if you have any please add it.
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Old 06-20-2016, 06:39 PM
  #594  
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Guys I need help.with the suggested gearing, if you have run a ratio and you know within reason that it works please list it so I can get it in the wiki, surface and motor fan y/n would also be helpful.

Thanks
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Old 06-26-2016, 09:59 AM
  #595  
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I have a nice k2 for sale, tons of new in package parts, wheels, tires. PM for more info

I've been racing for 28 years and am retiring, would really like to help someone who needs it.
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Old 07-12-2016, 08:38 AM
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Has anyone tried the alloy spring seats and find that they could not fit?
If forced in, it is extremely difficult to get them out.
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Old 07-15-2016, 02:42 PM
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Originally Posted by leongkc
Has anyone tried the alloy spring seats and find that they could not fit?
If forced in, it is extremely difficult to get them out.
? I had troubles keeping the front's in! You may have received bent, damaged parts! The new high springs cups work great.
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Old 07-15-2016, 09:25 PM
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Originally Posted by MelKF2
? I had troubles keeping the front's in! You may have received bent, damaged parts! The new high springs cups work great.
Actually, I'm in a very long conversation with Schumacher now.
It is a tolerances problem.... The ball cups when mounted on the shock rods expand to 1.61mm from 1.58mm. The spring cups are measured on mine to 1.64mm. I can force them in with some might, but is impossible to get them out without pliers.

They are certainly not bent. I'm still waiting for a reply from them. All else fails, I'm going to mail all of them back including one of my spare shocks and let them figure it out.
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Old 07-15-2016, 09:28 PM
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Default New Chassis

I see a new chassis released...

So now we have 3 to choose from:

1. Std Alloy
2. Alloy 2mm
3. CF

If I'm looking for traction and running on dirt, CF is still the best bet?
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Old 07-17-2016, 05:30 PM
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I smoked my slipper pads today and now I see Amain is out of them. Does anyone know if any of the other brand pads fit?
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