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Old 21st April 2018, 08:22 AM
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voucht voucht is offline
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Join Date: Jun 2011
Location: Lautrec, Tarn (81), Occitanie, France
Posts: 878
Default MX5 NB and Sigma

Hi,

Does anyone know if the MX5 NB 1800 engine has a "Sigma" gear box fitting bolt pattern (same as Duratec and Ecoboost)

There is an MX5 NB gear box from 2000 for sale not too far from where I live.
https://www.leboncoin.fr/voitures/14...4.htm/?ca=12_s

As I plan to upgrade my Roadster with an 1.6L 4 cylinder Ecoboost engine, if the gearbox is a direct fit, it might make things easier.

Also, how many HP can this gearbox take? According to the version, 1.6L Ecoboost can go up to 180HP.

Thanks.
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