Life after Nitrous Oxide

Fast forward to 2003, I had been enjoying the nitrous for awhile, but like any drug other drug, after you've been using it for awhile you feel like you need it all the time. I saved my money and decided to buy a Jackson Racing SuperSharger (JRSC), which is an Eaton M45 blower, which comes set up to make about 5 pounds of boost for a modest power increase.

I found a used JRSC on miata.net classifieds for $1200, which was a good price at that time when this was pretty much the only SC kit on the market for my car. I installed it in a weekend with the 5psi pulley, JR Fuel System, and a MSD timing control unit, and was extremely dissapointed with the power output. Sure it was more power, but it felt about like that 35 shot of nitrous, just availale all the time. I immediately looked for a way to get more out of this little supercharger, so I picked up a 60mm supercharger pulley (stock was 67mm). This made a DRAMATIC difference in power! Boost pressure went from 5psi to 11psi, and hit very hard at much lower RPMS. I now had the power I wanted. The only problem was, I had to severly retard timing to prevent detonation, and this limited power in the upper rev range. Later on, I added an Air to Air intercooler to combat that problem.

JRSC at 11psi. Also notice the nitrous solenoids

It had also gotten to the point that I decided to buy a new daily driver, know as OTM, or "Other than Miata" in the community. Because the Miata was now modified to the point that I did not want to drive it every day, so I picked up a new 2003 Ranger Edge. I loved this truck, may it R.I.P. - but thats another post