Inspection parts package MX-5 NA 1.8 street use

Inspection parts package put together by SPS Motorsport to fit 1.8 liter MX-5 NA with more than 80% street use and less than 20% track use. The packages are designed in such a way that they not only cover the OEM configuration of the vehicle, but also most of the conversions that we sell ourselves and install in our workshop. Thanks to the many possible combinations, there is the right package for pretty much every conversion.

Here is a brief explanation of the options that can be selected:

Transmission:

Here you can select the 5 speed gearbox (OEM for MX-5 NA). If you have converted your vehicle to a 6-speed gearbox, you will find the right packages under "6 speed gearbox".

Differential:

Here you have the choice between different differentials, which can be used in the MX-5 NA. lamella lock, torsen lock and open differential were standard in some MX-5 NA/NB/NBFL models. In addition, you can purchase the right inspection parts package if you have installed a KAAZ differential lock. Here a list of the OEM differentials:

• EU model, open diff
• Canada import, Torsen diff

Aspiration:

Here the "natural aspirated" option represents the absolute OEM condition of the engine. If you have installed a ITB system, you can use the "turbocharger" option, the required components are identical to those of the turbo engines. Rotrex drivers can also use the "Supercharger" option.

Year since Modification:

As with series manufacturers, we have also given some thought to the number of years after which components on the vehicle should be replaced in order to be able to guarantee perfect functioning. The respective years contain the following components:

Year 1:

• Engine oil including filter and sealing ring for the oil drain plug

Year 2:

• Engine oil including filter and sealing ring for the oil drain plug
• Spark plugs (BKR7EIX)
• 1 liter of brake fluid
• Air filter (only for natural aspirated)
• Transmission oil including sealing rings
• Differential oil including sealing rings
• Rotrex oil filter and oil (only for Supercharger)

Year 3:

• Engine oil including filter and sealing ring for the drain plug

Year 4:

• Engine oil including filter and sealing ring for the oil drain plug
• Spark plugs (BKR7EIX)
• 1 liter of brake fluid
• Air filter (only for natural aspirated)
• 3 liter engine coolant
• Transmission oil including sealing rings
• Differential oil including sealing rings
• Rotrex oil filter and oil (only for Supercharger)
• Continental timing belt set
• Water pump including seals
• Sealings of the camshafts and crankshaft
• Valve cover gasket

For filters (except Rotrex filters), Sealing rings and seals, we always work with Mazda original parts. When it comes to oils (unless another brand is included), we work with Motalin, who put together exactly the oils that we need for the vehicles.

In addition, the oils in the engine, transmission and differential change depending on how the vehicle is used, the type of aspiration and the installed differential. Here we have broken down as follows:

Engine:

• Natural aspirated: street use 5W-50, track use 10W-60
• Turbo: street use 10W-60, track use 10W-60
• Supercharger: street use: 10W-60, track use 10W-60

Transmission:

• Street use 5/6 speed: 75W-90
• Track use 5/6 speed: 85W-140

Differential Street use:

• KAAZ differential: KAAZ LSD oil
• Lamella lock: 80W-90 LS
• Open differential: 75W-90
• Torsen lock: 75W-90

Differential track use:

• KAAZ differential: KAAZ LSD oil
• Lamella lock: 85W-140 LS
• Open differential: 85W-140
• Torsen lock: 85W140