Contour Enthusiasts Group Archives Forums General Dyno and Drag EH'd UIM dynoed with confusing results.

Originally posted by zm830101:

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I've dyno'd my car with and without an SVT uppper intake, and in both cases I got power plummeting after 6000 rpms.

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I was referring specifically to this post. my fault. he mentions exhaust & mystery mod but if he is still using an unmodded y it would more than likely be the source of restriction and cause the choking of power from 6000 up

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I missed that too, but I still think it's not likely the Y-Pipe. I don't know that it's not, just think it's not.

I know that when I dyno'd my Mystique (KKM, SVT TB) it ran strong right to the rev limiter (I'll try to find the time to pull the graph).

The exhaust Ronan has should help not hinder and there is plenty of reason to believe the "mystery mod" blocking the EGR would cause the problem as it likely is not allowing the timing to advance.

The stock Y-pipe is definitely a restriction, but the cars still run strong right to the limit just not as strong as they could.

Regards, Alan