hi, excellent work there. Blacktop asked what i also wanted to know and that was, is the mx5 rear track any narrower than the sierra one? I am considering converting my live axle Stylus to IRS and i am looking for a suitable donor. If the MX5 is slightly narrower than the sierra meaning i dont have to use shortened shafts, it would be very handy, especially if the mx5 uprights can be used as you say.
Its a shame you are not going down the rotary engine route yet. I have built an RX7 powered stylus and my cousin and i built an RX8 powered tiger avon. The rotary engine is perfect for lightweight kit cars, especially the rx8, on a stock 2nd hand engine, we made 251 bhp at the fly with nothing but a decent exhaust and airfilter. The 6 speed box is great and you have a very linear power band and 9500 rpm to play with, so all in all a great combination.
good luck with the project, anything that keeps the kit car industry going has got to be good.
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