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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

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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 08-25-2015, 05:27 AM   #541
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I went to the track today to test the car out in stock trim. In the past, before the MM conversion, the car was not very competitive because it just could not generate the traction (mostly forward bite) on the surface I'm running it on. It felt sluggish and had difficulty clearing jumps that my B5M had no issues with at all.

That has now changed entirely. The car was fantastic today. The track was quite down on traction and rather dry so out came the Electrons. I did not feel like I was lacking for traction anywhere on the track and in fact I ended up moving the front shocks back in one hole on the tower from the one furthest out because the car was pushing on corner entry. I got some steering back and didn't have any off-power loose problems. I will probably go to the center hole and see if I can get even more steering without being loose.

After that adjustment and playing with gearing I ended up running some very consistent laps that were within 1-1.5s of the fastest guys at our track from the previous night's club race. The traction is a lot better on race nights as the track is consistently watered so I felt pretty good about the results relatively speaking.

So between the forward bite gained from the MM conversion and the extra zip I am seeing with the MIP puck drive / slipper weight loss program I feel like I have a car that is going to be very competitive in stock. It was really cool to see this car do what I always knew it was capable of today.

I am confident enough now with the car on lower grip that I am going to give it the ultimate test next weekend at a race in Michigan sponsored by our own DiscountRC. The track for the West Side Nationals is an outdoor hard-packed dirt track. I actually haven't run there but I know it is going to be much lower grip than anything I have run the KF2 on before. I am not really sure what to expect or if the car is even going to do well but based on what I have seen so far I am feeling pretty good about it.

At this point I am pretty much all-in on the KF2 with the MM conversion. How are those of you who have installed it doing with it?


So how was your race and your car?
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Old 08-25-2015, 05:46 AM   #542
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The outdoor race is this coming Saturday.

I just saw some news out of PNW from a race that was this past weekend called the North-West Invitational.

http://www.redrc.net/2015/08/cavalie...-invitational/

Looks like Mikey Brown, a Schumacher driver, did pretty well in 2wd mod against a competitive field. Did anyone in here attend or compete in that race? I'm just curious to know if Mikey was running the KF2 with MM conversion out there or an SV2. The track looks similar to what I may encounter this weekend in Michigan.

https://www.facebook.com/davesrctracks
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Old 08-25-2015, 05:49 AM   #543
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I havent talked to Mikey but I would guess he ran his KR....

Pretty much everyone ran rear motor at Daves
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Old 08-25-2015, 08:39 AM   #544
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Brown ran his Kr.
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Old 08-25-2015, 08:57 AM   #545
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OK. Well, I am told that most people run mid-motor at this track so we'll see......
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Old 08-25-2015, 07:05 PM   #546
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Daves is pretty loose/loamy.....

I would reach for the rm myself
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Old 08-25-2015, 08:24 PM   #547
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I've noticed more with my KF2 than my others vehicles, but the rear ride height drops over the course of the day. For example today, after four packs my rear ride height decreased by as much as 3mm. Is this common?
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Old 08-25-2015, 08:33 PM   #548
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That means your suspension is binding throughout the day....

check hinge pins for binding/bent... clean pin bores with pipe cleaners... use dry teflon wd40 on all pivots to ensure free movement.

It could also indicate bent shocks, shafts, swollen orings, blown bladders, rebound decreasing....

so many possibilities, those are all reasons why the top shelf racers maintain their rigs meticulously... almost medically clean all time. Consistency
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Old 08-25-2015, 08:56 PM   #549
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Quote:
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That means your suspension is binding throughout the day....

check hinge pins for binding/bent... clean pin bores with pipe cleaners... use dry teflon wd40 on all pivots to ensure free movement.

It could also indicate bent shocks, shafts, swollen orings, blown bladders, rebound decreasing....

so many possibilities, those are all reasons why the top shelf racers maintain their rigs meticulously... almost medically clean all time. Consistency
Are Schumacher's orings specific to their shocks or can I use another brands?
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Old 08-25-2015, 09:03 PM   #550
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Im not sure... Ive always used the red Schumachers... theyre good and cheap

they swell in about 3-4 weeks... I change mine at least that often....

And before you think omg I have to change them every month!.... all orings swell when exposed to silicone oil as much as rc shocks... most people just dont pay attention. All brands are the same... noone is exempt
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Old 08-26-2015, 03:05 PM   #551
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OK. Well, I am told that most people run mid-motor at this track so we'll see......
Rear motor a plenty.....

http://2wdmod.com/2015/08/26/2015-6t...ves-rc-tracks/
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Old 08-27-2015, 06:14 AM   #552
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I've found some price drop here in Europe, a mm kf2 in the horizon..?
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Old 08-27-2015, 06:58 AM   #553
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I've found some price drop here in Europe, a mm kf2 in the horizon..?
That's good news! However, I was just informed by Phil (DRC) that the MM kits are at least 3 weeks out which really looks bad for Schumacher's customers and Schumacher in general!
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Old 08-27-2015, 07:27 AM   #554
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Rear motor a plenty.....
Oh, I was actually referring to the track that I am headed to this weekend when I said "this track", not Dave's.

That being said I have gone back and forth between whether or not to start with the KF2 or give my B5 a whirl. If I had a KR I would probably have that as a backup.
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Old 08-27-2015, 07:33 AM   #555
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I've found some price drop here in Europe, a mm kf2 in the horizon..?
It's only a matter of time before they start selling more "focused" versions of the KF2, especially since the SV2 is no longer being developed.

As I've said before, if they can get a "Yankee" edition in the mid to low $300s I think that would at least make them a viable option for racers here in the States financially. If they could pull it off under three hundred with a milled aluminum chassis that would be light enough to appeal to stock racers I think they would really have something.
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