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Schumacher Cougar KF!!!

Schumacher Cougar KF!!!

Old 02-02-2015, 02:49 PM
  #1276  
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Originally Posted by J.Pietsch View Post
Can you post your complete setup?
for the most part his is it.

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Old 02-02-2015, 03:58 PM
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According to the manual, moving the rear inner hinge pin mounts to the high position helps add grip.
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Old 02-02-2015, 04:28 PM
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Originally Posted by scoobyrs25 View Post
According to the manual, moving the rear inner hinge pin mounts to the high position helps add grip.

Tony told me that raising the rear link will help give more traction so i would assume lowering the arm would do the same?
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Old 02-02-2015, 05:12 PM
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raising the arm mounts will add grip

also go lighter on the rear spring... white = 2.0 thats what I run most of the time

you could also go all the way long on the rear hub

ball diff would add alot of rear grip on power

2mm front and 1mm rear anti squat washers would be very cose to zero anti squat that will transfer more weight to the rear tires on power
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Old 02-02-2015, 05:14 PM
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Raising the inside arm lowers the mass of the car. The link changes roll center only. I just started my car built with the arms high and it seems well planted, even compared to my RB6.

Last edited by scoobyrs25; 02-02-2015 at 05:15 PM. Reason: Tony snuck in before I finished
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Old 02-02-2015, 05:32 PM
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Im currently running the ball diff but I would like to try out my gear diff. What would be a good starting weight oil for a medium grip clay track?
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Old 02-02-2015, 05:34 PM
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Default kf2

Hi people, are we using this thread for the KF2?
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Old 02-02-2015, 05:41 PM
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Originally Posted by maizer View Post
Hi people, are we using this thread for the KF2?
http://www.rctech.net/forum/electric...acher-kf2.html
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Old 02-02-2015, 06:53 PM
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Originally Posted by Tony Newland View Post
raising the arm mounts will add grip

also go lighter on the rear spring... white = 2.0 thats what I run most of the time

you could also go all the way long on the rear hub

ball diff would add alot of rear grip on power

2mm front and 1mm rear anti squat washers would be very cose to zero anti squat that will transfer more weight to the rear tires on power
Ok, I'am a little bit confused. All the setups sheets for low grip uses the lower pin holes not the upper. So according to the statement above we should use the upper pin holes? Also if you wanted to raise your rear arms, you want to use less washers = raising the arms. So for anti-squat you could use no washer rear and 1mm front?
PS. according to the setup sheet for the KF, no difference in anti-squat washers = 0 degrees. So by using more in front you will go negative?
Finally, by raising your rear arms you would affect your droop. I am currently running limiters in the rear, so if I raised the arms I should use less limiters?
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Old 02-03-2015, 01:28 AM
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I find the upper holes do add grip but they cause the arms to be at a higher angle at full drop than the lower holes, this most likely is the reason for the added grip but it tends to make the car less stable. That's what I've found so far. I'm running the lower holes but with my shocks on the most outer upper hole on the tower and the inner on the arm with a 1.6 spring and 22wt oil.











Here's my dirt KF so far, I had my first club meet the other day and ended up 5th over-all out of a pack mostly made up of B4s.

-Jeremy
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Old 02-03-2015, 03:28 PM
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sorry Tony, i read it some where that lowering the rear pin height will increase grip. i thought it was you that told me but i just went back and read over post. i will try to find the source of that info i got.

i however think i found part of my problem. i have a bent rear shock shaft. its not bent to bad but enough. im going to have to straighten it out as best i can as there are none in stock at the local hs.
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Old 02-03-2015, 04:02 PM
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Originally Posted by Tony Newland View Post
raising the arm mounts will add grip

also go lighter on the rear spring... white = 2.0 thats what I run most of the time

you could also go all the way long on the rear hub

ball diff would add alot of rear grip on power

2mm front and 1mm rear anti squat washers would be very cose to zero anti squat that will transfer more weight to the rear tires on power
Also adding to the list:

going down on wt in the diff
using the inside holes on the rear arms (but you will lose rotation)
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Old 02-03-2015, 05:38 PM
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Originally Posted by Tony Newland View Post
Ways Ive found more grip on my KF:

First and foremost the biggest difference is the low grip conversion

drill pistons to 1.6 holes
reduce ant squat
add rear toe in
lay rear shocks down
lay front shocks down
lower front steering knuckle
raise ride height
lengthen and raise inner link on rear
move shocks to rear of arms

There's quite a bit of things to experiment with to add grip
Originally Posted by joeymdz View Post
Also adding to the list:

going down on wt in the diff
using the inside holes on the rear arms (but you will lose rotation)
ok, tony says to lay them down you say to go inner hole on bottom. lol
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Old 02-03-2015, 05:58 PM
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Originally Posted by Tony Newland View Post

2mm front and 1mm rear anti squat washers would be very cose to zero anti squat that will transfer more weight to the rear tires on power
is that cause of the .50 difference in the larger 4mm screw?
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Old 02-03-2015, 06:01 PM
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Originally Posted by twisted View Post
sorry Tony, i read it some where that lowering the rear pin height will increase grip. i thought it was you that told me but i just went back and read over post. i will try to find the source of that info i got.

i however think i found part of my problem. i have a bent rear shock shaft. its not bent to bad but enough. im going to have to straighten it out as best i can as there are none in stock at the local hs.
Higher holes add grip.... its so easy to type the wrong thing, I probably did at some point, wont be the first time or the last lol

Originally Posted by twisted View Post
is that cause of the .50 difference in the larger 4mm screw?
Yes

Originally Posted by twisted View Post
ok, tony says to lay them down you say to go inner hole on bottom. lol
laying the shocks down will add lateral grip (side grip) using the inside hole on the arms adds forward grip.... Either could fix your problem since neither of us can actually watch your car. Give both a shot and see what work in the area you need
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