Banga Posted January 6, 2022 Share Posted January 6, 2022 Hoping someone one might be able to help or point me in the right direction. I’m hoping I can add a Vehicle speed sensor to my box so that I can sort out the speedo on my cortina. I bought a Speedhut speed box which will take out from a VSS and turn it into a mechanical output which will mate up to the standard Cortina speedo. I assumed the NC MX5 5 speed box would have a VSS… but assumption is the mother of all fuck ups it seems! It looks like the tail shaft housing has the casting marks/pattern for a VSS so I’m wondering if I can just modify my housing using those marks and add a VSS? https://www.rockauto.com/en/catalog/mazda,2007,mx-5+miata,2.0l+l4,2002662,electrical,speed+sensor,10634 Any thoughts out there? Quote Link to comment Share on other sites More sharing options...
Transom Posted January 6, 2022 Share Posted January 6, 2022 Hmmm does it have the drive gear on the tailshaft to run the vss? Looks easy enough to get drilled/ tapped once you have the housing off the tailshaft NC info is scarce prob the least modified model-Aisin 6 speed ? Shares some bits with the Rx8 ? Look at flying miata see how they work around it on their engine conversion ? Quote Link to comment Share on other sites More sharing options...
Banga Posted January 6, 2022 Author Share Posted January 6, 2022 19 minutes ago, Transom said: Hmmm does it have the drive gear on the tailshaft to run the vss? Looks easy enough to get drilled/ tapped once you have the housing off the tailshaft NC info is scarce prob the least modified model-Aisin 6 speed ? Shares some bits with the Rx8 ? Look at flying miata see how they work around it on their engine conversion ? Not sure about a drive gear, will need to pull the tail shaft housing off to take a look I guess! This is a 5 speed box, so pretty rare outside of Europe it seems. Will have a look at lying miata! Quote Link to comment Share on other sites More sharing options...
siren676 Posted January 6, 2022 Share Posted January 6, 2022 The NC 5 speed box doesn't have an internal drive gear. NChttps://partsouq.com/en/catalog/genuine/unit?c=Mazda&ssd=%24*KwEIPC09VGJUYlsWc3MLBlBEZGN9DAMODx0OHl5efH4LRVpMIxkPU1daUXoKcgtWWUcLRVVQVntPWxATBlMJfAoLDQwAAAAAJvVUlQ%24&vid=1412980545&cid=&uid=146501&q= NAhttps://partsouq.com/en/catalog/genuine/unit?c=Mazda&ssd=%24*KwHe6vvOqamhv6ii34D92IaSsrWr2tXY2cvYyIiIqqjdk4ya9c_ZhYGMh6yopNiEiZ_dk4OGgK2ZjcbF0IXfqtzd2NsAAAAAF_3U_g%24&vid=1412980575&cid=&uid=203543&q= 2 Quote Link to comment Share on other sites More sharing options...
Banga Posted January 6, 2022 Author Share Posted January 6, 2022 Thanks - that saves me pulling the rear housing off! looks like I can go with one of these as plan B so no big drama after all https://www.summitracing.com/parts/dak-sen4165 1 Quote Link to comment Share on other sites More sharing options...
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