Reply To: Discussion NSR Rally: Renault Clio R3 vs Abarth S2000

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Avatar photoBarkingSpyder
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    RALLY DROP ARMS
    If you are using the OEM CLIO-R small-can chassis, with a rectangular pod, obviously you dont have a triangular pod or drop arm. Use any NSR ‘regular’ short-shaft guide (pop-in or screw-on) and up to a 1mm spacer to take out the rocking/slop. Good luck on adjusting axle height : (

    Below are the major options for setup of the NSR drop arms.
    1. FIXED
    If you have an OEM or ugrade chassis with triangular pod and drop-arm, again use a short-shaft guide. Use an NSR small machine screw (the body and pod screws are too short) without the spring, to keep the drop-arm firm. Be careful to Not over-tighten and hence warp the the arm’s nose.

    2. SPRUNG
    The drop-arm machine screw binds on the on bridge over the guide. To reduce this friction, in the bridge very carefully widen the oblong hole where the arm fixing screw goes through. Widen at the back (towards the motor) of the hole with an Exacto or a small bit in a pin vise. Be slow and careful, there is not much meat in that area.
    Using the long machine screw from the front axle adjusting “kit” that Randy has identified; place a spring over the screw and set the spring in the arms cup around the nut area for the screw. Do not glue the spring in – you can accidently glue the arm screw or bind the spring.
    You can use the long-shaft rally guide, which will give you more spring from the motor wires. If the slop of the long shaft causes you handling problems, you can use the short-shafts

    3. FLOP
    As illustrated in the NSR catalog, the drop arm can be free and un-sprung, using the motor wires as a spring. This requires slightly longer than normal amount of motor wire past the front axle. Generally this configuration is shown with the long-shaft rally guide, letting it float in the guide-boss/tongue, without a spring on either the drop-arm or the shaft (dont put a spring on the shaft). There is nothing prohibiting you from using any of the short-shaft guides.

    ** I personally do not have any testing results on how any of the above configurations perform relative to the others. Any comments from testing are welcome!

    "... get on your bad motor scooter and ride!"
    Sammy with Montrose

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    BarkingSpyder

    At 4-years old in Pensacola I repaired my steering linkage on my Ford Pedal-car. Dad later converted this car to a Blue Angel with ailerons and elevators with a working "stick/yoke"; the rudder was controlled by the steering wheel. I like all motorsports - I grew up going to a NASCAR Feeder track with Sportsman and Modified classes, and was lucky to attend drag races in 1970 at Orange County Raceway. My first solder-iron was a Christmas gift at 9yo; I modified T-Jets to be AFX spec before AFX Cars were in local stores. I rebuilt a few tractor & car (SIMCA) engines plus transmissions by 15yo (I still have my ring-compressor and valve spring tool) I am a former mountain and road bike geek & perennial sound engineer. Struggling guitar hobbyist and Amp "tweeker"