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R/C Tech Forums Thread Wiki: New Schumacher KF2
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Welcome to the KF2 Wiki!

Please feel free to add any Tips, Tricks, or anything that would be beneficial to the KF2 Family

Introduction and Pictures Introduction and Pictures

ElectronicsSetupElectronicsSetups

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EmulsionShocksEmulsion Shocks

Tony Newland Gear Diff BuildTony Newland Gear Diff Build

Suggested Gearing

6.5
7.5
8.5
9.5
10.5
13.5
17.5 I ran 69/31 at SRS Scottsdale Arizona and 72/30 at MHOR Aurora Co and Full Throttle ALB, NM RCM lockout worked excellent!


MIP pucks excellent upgrade! The new RCM lockout is an excellent piece as well! These options will greatly reduce weight throughout the drive line!

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Old 06-02-2015, 06:07 AM   #316
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Interesting. This is why I was very curious to see an actual measurement of this layout as eyeballing it does not always end up agreeing with the measured results, which in this case were counterintuitive (at least to me). But based on what Maizer is saying I do not think it was his intent for this design/experiment to be made public let alone scrutinized so I digress.

With regards to the comments about the method of measuring used my question to anyone is: What are you trying to measure? If you want to determine where the center of mass is on the car then the best way to do that is how Tony has been suggesting. Remove and/or account for all the unsprung mass and take the spring pre-load out of the equation by using struts to set the suspension level at ride height. Once you can see where the center of mass moves as you make changes then you can start answering questions about dynamic weight transfer and handling.

This is not to say that scaling a car on tires has no value. It is just not as accurate in determining the car's center of mass, which is the key element affecting the car's handling.
I made the changes to the car to make it more 17.5 friendly, and after testing feel it is. The car has more rear grip regardless of the scales. The true test is coming as i have put my mod motor back in.
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Old 06-14-2015, 05:28 PM   #317
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does the chassis U4613 fit the kf 2 with low grip kit?
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Old 06-14-2015, 09:30 PM   #318
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No... rear arm mounts are different between KF/KF2
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Old 06-15-2015, 07:15 AM   #319
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[QUOTE=Tony Newland;14053815]No... rear arm mounts are different between KF/KF2

Is there a cf chassis for the kf2 with low grip kit?
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Old 06-15-2015, 02:34 PM   #320
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Not that im aware of
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Old 06-15-2015, 03:52 PM   #321
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U4687
Just installed it last night. 86g vs 150g
Stock buggy dropped from 1565 to 1499
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Old 06-15-2015, 03:57 PM   #322
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Aha there ya go... no pic on Schu site so I didnt see it
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Old 06-15-2015, 05:25 PM   #323
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the boys at discountrc know all about it--
http://www.discountrcstore.com/Schum...mm_p/u4687.htm
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Old 06-16-2015, 11:29 PM   #324
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Saw a big price drop on the SV2. A new mid-motor release soon?
KM.....
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Old 06-17-2015, 09:29 AM   #325
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Quote:
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Saw a big price drop on the SV2. A new mid-motor release soon?
KM.....
I've heard a rumor of a new Cougar SV. SV3 maybe?
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Old 06-17-2015, 10:49 AM   #326
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I wish belt drive..!
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Old 06-17-2015, 08:39 PM   #327
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After graphite chassis swap I lost some roll. Gotta adjust shims next time out.
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Old 06-28-2015, 10:36 PM   #328
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One question, if I remove the 2 side braces, is it going to be a durability issue?
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Old 07-12-2015, 10:41 AM   #329
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Quote:
Originally Posted by leongkc View Post
One question, if I remove the 2 side braces, is it going to be a durability issue?
I know this is a late reply, but I run without the side braces/plastic and no battery hold down braces either (tape battery in place) and I've seen no change in durability. I also noticed little change in the flex of the chassis too. The aluminum chassis by itself is pretty rigid. I race on hard pack clay.
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Old 07-12-2015, 10:52 AM   #330
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I run cf chassis in shorty batt/rear motor config without any plastic sides or top deck
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