2560 is a good turbo too, but won't spool as fast and not necessary for autocross. It's better suited to long pulls. The little 2554R will spool faster than the vj14, and offer more top end than the VJ turbos. The secret to getting this to work is best will be your intake and exhaust manifolds and cam profiles. The B6t has a really crappy intake manifold, and very conservative cam profiles. The miata manifold is much better, but the miata cams are nearly identical to the b6t cams.
In order to really build a properly tuned b6t for a festiva look at some of the things that Hot_wheels has done with his. His turbo is a bit too big for autocross though, so stick with the 2554 for parking lot racing.
In order to really build a properly tuned b6t for a festiva look at some of the things that Hot_wheels has done with his. His turbo is a bit too big for autocross though, so stick with the 2554 for parking lot racing.
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