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Hey everyone

I am researching using a miata/mx5 rear end on my honda S600 build.I intend to use a F20c or similar motor.
This is to replace the existing chain drive or live axle option. I am basing this rear end off similar builds in RWD minis , other small convertibles etc.
The front end is acceptable but I am open to suggestions ! HERE is an image of the design (sitting upside down)

So , school me abit about using another cars subframe + IRS setup....

1.Using an entire MX5 rear end - If the suspension is kept as is and the carrier area of the subframe is simply cut and narrowed to suit , will this keep the geometry ?

2.The honda S600 rear tracking is 1128mm and the mx5 (1st gen ) is 1430mm. This means , pending wheel offsets - I can narrow the subframe 151mm either side of center and shorten the driveshafts to suit and it should be a good start right ?

Ill shoot some more questions about this soon

thanks for any input ! Ben