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Old 06-14-2008, 05:21 AM   #1
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i race a g4 team kit on an asphalt parking lot track and i am having trouble keeping the rear end from sliding out when i exit a corner on power. I have tried numerous set-ups, different shore rated tyres, springs etc and nothing has fixed my problem. Can any body help me with my problem with set ups for the g4 please.
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Old 06-14-2008, 05:49 AM   #2
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i race a g4 team kit on an asphalt parking lot track and i am having trouble keeping the rear end from sliding out when i exit a corner on power. I have tried numerous set-ups, different shore rated tyres, springs etc and nothing has fixed my problem. Can any body help me with my problem with set ups for the g4 please.
firstly what model of G4 do you have ? G4 mongoose ? G4S etc...
and can you post the setup you are using now ,thanks.
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Old 06-14-2008, 06:38 AM   #3
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im running a black magic with the following setting on rubber tires
up front
2.5 neg camber
blade sway bars at 45 deg
shock oil 45 wt assoc with 2 hole piston
shocks mounted outer hole on arms and inner hole on mounts with medium hard springs
down rear3deg negative camber
shocks outer ho;e on arms and inner hole on shock tower
dlade type sway bar at 45 deg
45 wt assoc iol with two hole piston
the threaded nut on the shock is all the way up the top
my car changes gears at one third throttle to second gear
tyres are take off 27 with grey inserts gleud to speed mind rims.the insert is not glued to the tire
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Old 06-14-2008, 07:17 AM   #4
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I know this sounds silly,......make sure your wheels on right! On touring cars the front and rear wheels are made of different compounds of rubber. So if you have rear front wheels on the rear you'll be sliding all over the track!
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Old 06-14-2008, 08:38 AM   #5
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I am no expert with G4's or rubber tires but flatten that rear sway bar or even remove it all together. More rear toe-in, softer rear springs, lighter rear diff fluid are all things that could help.
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Old 06-14-2008, 04:07 PM   #6
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Would you try foam tires ? Are you okay ( legal ) to use it ?
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Old 06-14-2008, 04:23 PM   #7
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BTW, also use paragon tire liquids, soak it 5 minutes, and wipe it.


Optional :

In my electric cars, I use 24mm Sorex 40 with tamiya 26mm light blue inserts ( medium hardness ). The tires become nicely full and I really feel the difference : the tires last longer, and always maximum grip.

With rubber tires, don't use too much camber. Try 0 degree on front and rear ( aim for maximum rubber contact on flat glass table. You can see the tire contact as you lean the chassis left and right AS IF the car is turning left or right ).
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Old 06-14-2008, 05:21 PM   #8
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I am no expert with G4's or rubber tires but flatten that rear sway bar or even remove it all together. More rear toe-in, softer rear springs, lighter rear diff fluid are all things that could help.
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Old 06-14-2008, 06:33 PM   #9
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Quote:
Originally Posted by freestyles View Post
i race a g4 team kit on an asphalt parking lot track and i am having trouble keeping the rear end from sliding out when i exit a corner on power. I have tried numerous set-ups, different shore rated tyres, springs etc and nothing has fixed my problem. Can any body help me with my problem with set ups for the g4 please.
I don't know the car, but it sounds like to me 3 things that could help you.

Narrow the track width, start by 1mm on each side. this should make the car more stable on throttle coming out of the corner.

Second, is lighten the rear diff. Again, I don't know the car but use a lighter diff fluid or if it is a ball diff, loosen it up. this will allow the rear tire with the least amount of load to spin...the down side to this is that it will creat a little more tire wear, but if you are running rubber, it won't be that much

Third is change the Roll center. You would want to lower the rear roll center.. this would give you more overall grip to the rear of the car.

A few other things to check.....make sure that the droop is set equal in the front. make sure the shocks are equal and the car is not tweaked(bent)....

Hope some of this helps
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Old 06-15-2008, 02:46 AM   #10
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also forgot to mention i use a diff up the front with four gears and 3k oil from a kyosho v1s series one and that changed the handeling drastically
the teething is the same as the team magic locked diff both number and pitch
3mm droop at front and 2mm droop at rear
check the tension on the side belt
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