1991 Mazda Eunos Roadster Turbo Build
#1
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Hi All, I'm Ben a 24 Year old Compressor Engineer From Auckland, New Zealand. I purchased a 1991 Mazda Roadster almost three years ago now with the intent on making it a 10 second quarter mile street legal roadster. I had taken my NA6 to the quarter mile before making any modifications so I could get an Idea of a before and after time (Basically the same as the Dieting photos Fat vs Skinny). In Stock form I managed a respectable 17.2. Since then I have been rather busy endeavoring to improve my roadster in all elements. Here are a couple of photo's of what I have done so far. I am aiming for 320Kw at the rear wheels, I have a lot questions and I'm open to constructive criticism.
![](https://www.miataturbo.net/attachments/meet-greet-40/117833-1991-mazda-eunos-roadster-turbo-build-rohe1rdl.jpg?dateline=1405335051)
The Day I purchased my roadster
![](https://www.miataturbo.net/attachments/meet-greet-40/117834-1991-mazda-eunos-roadster-turbo-build-wo8ftqgl.jpg?dateline=1405335051)
First Drag racing outing
![](https://www.miataturbo.net/attachments/meet-greet-40/117835-1991-mazda-eunos-roadster-turbo-build-8bnhgh7l.jpg?dateline=1405335051)
Replaced the NA6 Diff with a NA8 Cusco Two-way LSD
![](https://www.miataturbo.net/attachments/meet-greet-40/117836-1991-mazda-eunos-roadster-turbo-build-f8gz2p9l.jpg?dateline=1405335051)
Stripped out the NA6 running gear
![](https://www.miataturbo.net/attachments/meet-greet-40/117837-1991-mazda-eunos-roadster-turbo-build-pil3ggil.jpg?dateline=1405335051)
Dropped in my BP Dummy Block for Fabrication purposes
![](https://www.miataturbo.net/attachments/meet-greet-40/117838-1991-mazda-eunos-roadster-turbo-build-ai3gokel.jpg?dateline=1405335051)
Stripped the Interior and Built a 6 point Rollcage for protection.
![](https://www.miataturbo.net/attachments/meet-greet-40/117839-1991-mazda-eunos-roadster-turbo-build-aigkvzql.jpg?dateline=1405335051)
Turbo and Exhaust Manifold I fabricated
![](https://www.miataturbo.net/attachments/meet-greet-40/117840-1991-mazda-eunos-roadster-turbo-build-nezvkzyl.jpg?dateline=1405335051)
Along with the down pipe and full exhaust
![](https://www.miataturbo.net/attachments/meet-greet-40/117841-1991-mazda-eunos-roadster-turbo-build-enmla5al.jpg?dateline=1405335051)
![](https://www.miataturbo.net/attachments/meet-greet-40/117842-1991-mazda-eunos-roadster-turbo-build-hvseda5l.jpg?dateline=1405335051)
Fully Built Cylinder Head 272 Kelford Cams, K20A COP's, Corksport cam gears
![](https://www.miataturbo.net/attachments/meet-greet-40/117843-1991-mazda-eunos-roadster-turbo-build-hjbjud3l.jpg?dateline=1405335051)
Custom designed Brake kit Machined by myself
![](https://www.miataturbo.net/attachments/meet-greet-40/117844-1991-mazda-eunos-roadster-turbo-build-0tjzesql.jpg?dateline=1405335051)
Fitted and Tested to my friends Turbo NA6
![](https://www.miataturbo.net/attachments/meet-greet-40/117845-1991-mazda-eunos-roadster-turbo-build-v6jvi1xl.jpg?dateline=1405335051)
And this is where I am currently up to on my build, Finishing the ITB plenum, intercooler pipping and prepping the frame for a total respray as after 23 years the paint isn't too shabby.
![](https://www.miataturbo.net/attachments/meet-greet-40/117833-1991-mazda-eunos-roadster-turbo-build-rohe1rdl.jpg?dateline=1405335051)
The Day I purchased my roadster
![](https://www.miataturbo.net/attachments/meet-greet-40/117834-1991-mazda-eunos-roadster-turbo-build-wo8ftqgl.jpg?dateline=1405335051)
First Drag racing outing
![](https://www.miataturbo.net/attachments/meet-greet-40/117835-1991-mazda-eunos-roadster-turbo-build-8bnhgh7l.jpg?dateline=1405335051)
Replaced the NA6 Diff with a NA8 Cusco Two-way LSD
![](https://www.miataturbo.net/attachments/meet-greet-40/117836-1991-mazda-eunos-roadster-turbo-build-f8gz2p9l.jpg?dateline=1405335051)
Stripped out the NA6 running gear
![](https://www.miataturbo.net/attachments/meet-greet-40/117837-1991-mazda-eunos-roadster-turbo-build-pil3ggil.jpg?dateline=1405335051)
Dropped in my BP Dummy Block for Fabrication purposes
![](https://www.miataturbo.net/attachments/meet-greet-40/117838-1991-mazda-eunos-roadster-turbo-build-ai3gokel.jpg?dateline=1405335051)
Stripped the Interior and Built a 6 point Rollcage for protection.
![](https://www.miataturbo.net/attachments/meet-greet-40/117839-1991-mazda-eunos-roadster-turbo-build-aigkvzql.jpg?dateline=1405335051)
Turbo and Exhaust Manifold I fabricated
![](https://www.miataturbo.net/attachments/meet-greet-40/117840-1991-mazda-eunos-roadster-turbo-build-nezvkzyl.jpg?dateline=1405335051)
Along with the down pipe and full exhaust
![](https://www.miataturbo.net/attachments/meet-greet-40/117841-1991-mazda-eunos-roadster-turbo-build-enmla5al.jpg?dateline=1405335051)
![](https://www.miataturbo.net/attachments/meet-greet-40/117842-1991-mazda-eunos-roadster-turbo-build-hvseda5l.jpg?dateline=1405335051)
Fully Built Cylinder Head 272 Kelford Cams, K20A COP's, Corksport cam gears
![](https://www.miataturbo.net/attachments/meet-greet-40/117843-1991-mazda-eunos-roadster-turbo-build-hjbjud3l.jpg?dateline=1405335051)
Custom designed Brake kit Machined by myself
![](https://www.miataturbo.net/attachments/meet-greet-40/117844-1991-mazda-eunos-roadster-turbo-build-0tjzesql.jpg?dateline=1405335051)
Fitted and Tested to my friends Turbo NA6
![](https://www.miataturbo.net/attachments/meet-greet-40/117845-1991-mazda-eunos-roadster-turbo-build-v6jvi1xl.jpg?dateline=1405335051)
And this is where I am currently up to on my build, Finishing the ITB plenum, intercooler pipping and prepping the frame for a total respray as after 23 years the paint isn't too shabby.
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