Currently we are jigged up for the 89-93 1600 MX5 using the venerable
SC14 Supercharger
For a DIY kit which includes:
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Plug and Play Megasquirt ECU
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264cc injectors
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SC14 Supercharger (used but checked)
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Tensioners
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Manifolds
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Throttle relocation
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Throttle cable
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Cross over pipe
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and a basetune to suit
This gives on average 155-160hp at the wheels and excellent low to midrange torque and is very suited to a street driven MX5.
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Complete bolt on kit for $3600
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Or installed and fully Dynotuned for $4500
However if you plan on using your MX5 for motorsport events such as Hillclimbs, Motorkhana, Trackdays, Racing or just extended full throttle on the street - then we highly recommend upgrading to the Water/Methanol Injection setup.
The excellent AEM Water/Methanol Injection kit reduces massively the intake charge and protects the motor under extended full throttle applications. As a bonus due to the cooler charge and higher octane input - if tuned correctly gives an additional 25-30hp.
These are available for an additional $750 supplied, or $1100 supplied and installed.
*Note pic shows custom Gilmore drive not included in this package.