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When I drove to the dyno I completely destroyed my diff, I drove on the higway for two hours with no fluid in the rear. It sounded like death. So when I finally got on the dyno my turbo spooled weird and I could tell something was wrong, the results were still promising.

here's the before and after:
http://boostedmiata.com/dynos/intake...are_boost1.jpg

No other changes to the setup, but the IM, were made. You can see I only hit 10psi then it slowly hit 13 at redline, but I made the same power up top with less boost. No signs of torque drop.

Since I fitted a new differential it felt awesome. My problem being, it slowed the spool-up about 300rpm from before. Coupled with my heavy use of the a/c, it was enough that I wasn't happy with the compromise and I have since decided to downgrade my system further and making the setup more street friendly.

Like my thread states, the stock FPR cannot be used, it just wont fit, and a throttle bracket needs to be fabbed. My solution was I bent an L out of aluminum and bolted the stock bracket further back. I wasn't willing to cut the cable and shorten it.

If i had a built motor I'd keep it, but I've always been happy how the setup was prior, and decided to go back and be more competitive racing mopeds on the street.

most of the build progress can be seen here, including my throttle bracket:
http://s46.photobucket.com/albums/f1...fold%20Design/

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