Tag: suspension

Some more fiddling with the suspension

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There is still a little bit to do with the Tein. For the rear, I dont have any kind of camber adjustment, but that can be fixed with SW20 camber adjusting bolts. For the front, I’ve been thinking something similar.

Ive got the measures for the front camber adjustment cam somewhere and based on those, it is possible to use SW20 camber adjustment bolts in front hubs too, but only in the upper bolt hole. Some of the parts need to be done in lathe, but that shouldnt be a problem.

Also, that 2mm shim plate is not as elegant as it could be. I might revisit it later.

Differences between AW11 and SW20 suspensions

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Front endAW11 (mk1b)SW20 (early)notes
Top mount nuts4x 14mm, 8mm thread (90179-08097)4x 14mm, 8mm thread (90179-08097)same, bolt pattern different
Top nut21mm, 14mm thread (94182-11400)21mm, 14mm thread (94182-11400)same
Bottom bolts 2x 17mm, 12mm thread (90105-12042)2x 19mm, 15mm thread (90105-15001)**) late models have 90105-15005
Bottom nuts2x 17mm (90179-12025)2x 19mm (90179-15001)**) late models have different nuts
Bottom bracket width26mm??mmdifferent between AW11 and SW20. A stack of shims is needed
Upper bolt hole12mm x 14,5mm15mmDiameter difference
Lower bolt hole12mm15mmDiameter difference
Bolt hole c-to-c59mm59mm
Trailing arms48660-1701048660-17030difference? thread and thickness is same.
Tie rod end45046-2913545047-19075length, shape. sw20 points upwards
Rear endAW11 (mk1b)SW20notes
Top mount nuts3x 12mm, 8mm thread (90179-08122)3x 14mm, 10mm thread (90179-10103)bolt pattern same thread is bigger
Top nut21mm, 14mm thread (90179-14015)21mm, 14mm thread (90179-14015)same
Bottom bolts2x 19mm, 15mm thread (90105-15001)2x 19mm, 15mm thread (90105-15001)*same *) late models have 90105-15005
Bottom nuts2x 19mm (90179-15001)2x 19mm (90179-15001)same *) late models have different nuts
Bottom bracket width28mm??almost same
Upper bolt hole15mm x 17mm15mmThe camber adjustment method is different
Lower bolt hole15mm15mmshould be same
Bolt hole c-to-c59mm59mmshould be same
Trailing arms48780-1702048780-17030 difference?
Tie rodvery different

Other stuff:

  • Tie rod ends share the same castle nut. Most likely the tie rod ends are nearly identical and SW20 ones should fit AW11. Length might be an issue and the thread to the tie rod as well
  • Aftermarket SW20 rear trailing arms should fit into AW11
  • Aftermarket SW20 front trailing arms up to -91 should fit to AW11, after that I’m not sure. At least the front bracket where the far end of the trailing arm attaches should be swapped.

 

  • 90105-15001 (aw11 rear) bolt measures:
    • total length 67mm
    • without head length 55mm
    • head height 12mm
    • threaded part 29mm
    • M15(?) thread
    • 19mm tool needed
    • flange diameter ??mm
    • nut height ??mm
  • 90105-12042 (aw11 front) bolt measures
    • total length 64mm
    • without head length 53mm
    • threaded part 33mm
    • M12(?) thread
    • 17mm tool needed
    • flange diamter ??mm
    • nut height ??mm