We are doing a batch of these front control arm / tie rod assemblies. Custom solutions for various struts possible. All joints with rod-ends or spherical bearings. This setup is mainly intended for track/race cars although can also be used for weekend "fast road" cars as well. If there is interest please send email or PM to info@s14power.com or sales@maxx-automotive.com
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This is late DTM92 style. It is the ultimate in light weight suspension, full geometry adjustability, steering precision and stiffness. This suspension will work on e30 and e36 chassis race cars and even some E46 cars have used DTM struts and suspension.
version with raised inner control arm pickup point (modified subframe for the optimal control arm geometry for lowered cars. you dont have to run such large spacers at the outer control arm pickup and it will fit your rims easier):
spare parts:
control arm parts:
Please note that the control arms are SIDE specific -- in contrast to some earlier setups which try to be universal.
Assembly of Group A/DTM Front Axle E30/36
The control arm must be attached to the clevis on the front subframe using spacers as shown in the picture above. The spacers ensure that the control arm's inner rod-end is correctly centered in the clevis.
Torque: 100 Nm
The control arm's outer joint is mounted using conus bearing as shown above. The mounting position can be adjusted using the supplied spacer. Installation of the spacer is not absolutely required.
Torque on bottom nut: 90 Nm
Installation of the fork on the radius arm and attachment to the control arm is shown in the above.
Torque: 100 Nm
Installation of the radius arm rod-end in the chassis mount is shown above. The supplied spacers must be used both above and below the rod-end to ensure proper clearance under all conditions.
Torque: 100 Nm
With the large spacers it is possible to adust the height of the radius arm and thus change the vehicles anti-dive characteristic. Moving the arm up results in less dive and moving the arm down in more dive when the car is braking.
In order to secure the chassis mount which accepts the radius arm a hole must be drilled and the supplied threaded nut welded into the chassis rail.
Diameter: 12.5 mm.Torque 42 Nm
Use the supplied screws M12x1.5 to attach the other points of the radius arm mount to the chassis.
Torque M12 screws: 105 Nm
In order to achieve the stock wheel position, the control arm is adjusted to a length of 340 mm measured center to center between the bearing ends.
Zoomed picture from above showing the control arm measurement.
In order to achieve the stock wheel position, the radius arm is adjusted to a length of 435 mm measured between the center of the fork bolt hole and the rod-end center.
Zoomed picture from above showing the radius arm measurement.
Note that this is just a basic setting to give you a start. From here, you may want to increase the trackwidth and camber by adjusting the control arm outward. The camber change is in addition to whatever change your adjustable camber plates will allow. This change in trackwidth will not change your scrub radius (distance between the projection of your strut and wheel center). If you added a thicker wheel spacer e.g., you would increase your scrub radius.
-------------------------------------
This is late DTM92 style. It is the ultimate in light weight suspension, full geometry adjustability, steering precision and stiffness. This suspension will work on e30 and e36 chassis race cars and even some E46 cars have used DTM struts and suspension.
version with raised inner control arm pickup point (modified subframe for the optimal control arm geometry for lowered cars. you dont have to run such large spacers at the outer control arm pickup and it will fit your rims easier):
spare parts:
control arm parts:
Please note that the control arms are SIDE specific -- in contrast to some earlier setups which try to be universal.
Assembly of Group A/DTM Front Axle E30/36
The control arm must be attached to the clevis on the front subframe using spacers as shown in the picture above. The spacers ensure that the control arm's inner rod-end is correctly centered in the clevis.
Torque: 100 Nm
The control arm's outer joint is mounted using conus bearing as shown above. The mounting position can be adjusted using the supplied spacer. Installation of the spacer is not absolutely required.
Torque on bottom nut: 90 Nm
Installation of the fork on the radius arm and attachment to the control arm is shown in the above.
Torque: 100 Nm
Installation of the radius arm rod-end in the chassis mount is shown above. The supplied spacers must be used both above and below the rod-end to ensure proper clearance under all conditions.
Torque: 100 Nm
With the large spacers it is possible to adust the height of the radius arm and thus change the vehicles anti-dive characteristic. Moving the arm up results in less dive and moving the arm down in more dive when the car is braking.
In order to secure the chassis mount which accepts the radius arm a hole must be drilled and the supplied threaded nut welded into the chassis rail.
Diameter: 12.5 mm.Torque 42 Nm
Use the supplied screws M12x1.5 to attach the other points of the radius arm mount to the chassis.
Torque M12 screws: 105 Nm
In order to achieve the stock wheel position, the control arm is adjusted to a length of 340 mm measured center to center between the bearing ends.
Zoomed picture from above showing the control arm measurement.
In order to achieve the stock wheel position, the radius arm is adjusted to a length of 435 mm measured between the center of the fork bolt hole and the rod-end center.
Zoomed picture from above showing the radius arm measurement.
Note that this is just a basic setting to give you a start. From here, you may want to increase the trackwidth and camber by adjusting the control arm outward. The camber change is in addition to whatever change your adjustable camber plates will allow. This change in trackwidth will not change your scrub radius (distance between the projection of your strut and wheel center). If you added a thicker wheel spacer e.g., you would increase your scrub radius.
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