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NA Miata 1.6 Idle Speed Control Valve Delete (ISCV)

I have been building and racing racecars for a long time, and one of my favorite things is removing unnecessary crap. In a 1.6l equipped Miata that spends its life at wide open throttle, the ISC or Idle Speed Control System just so happens to fall into that category. In this guide, I am going to...

Does Removing the Miata Hardtop Glass Improve Performance?

The dataset for window removal analysis in the miata with the outlier laps removed.

The hardtop on the Miata is one of my targets for weight reduction on the Super Touring 6 Miata. During the last round of extreme weight reduction on the racecar, I did some testing to try and determine what effect, aside from an 11-lb weight reduction, running without the rear glass would have...

Super Touring 6 Miata Extreme Weight Reduction Part 2

Suited up with safety gear cutting metal off the NA Miata Super Touring 6 Racecar.

Getting the Super Touring 6 Miata down another 130 pounds is no simple task. In part 1, I laid out a plan of attack that I started at the most recent Nashville Superspeedway event. I brought my scales to document the weights, and although I may have looked like a maniac with a Sawzall in the...

Extreme Weight Reduction Plan for the Super Touring 6 Miata

The minimalist interior that contributes to the NA Miata weight reduction.

Last year, I converted the 1.6-liter NA Spec Miata to run in the Super Touring 6 class with NASA. This power-to-weight ratio class allowed me to shed the weight of the underpowered racecar aggressively. The result was a 2230-lb racecar with the driver, a reduction of 45 lbs. from the Spec Miata...

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