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911st 911st is offline
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Join Date: Jan 2004
Location: Sacramento
Posts: 7,269
Originally Posted by 89930cab View Post
...I was wondering what the maximum HP potential is for a stock turbo...along with all the supporting mods. Thanks!

Brian, Have you seen this combo and have any data?

It is only a guess but starting at stock with about 280hp I would think about 5-15hp for a sport muffler, 10-15 hp for .9 bar boost. Maybe another 10-20hp for a better intercooler. If SC cams another 10hp maybe. Headers, 10hp or a bit more on an 89. Again, only a guess.

After changing out the muffler changing out the turbo would probably be the next best candidate to be changed if looking for less lag and more HP. I suspect the stock turbo is not very efficient much past 300chp.
Old 08-21-2010, 10:12 AM
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