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Discussion Starter #1
can anyone please post a graph of a sp74's and 76's

thank you.
 

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Check this: http://www.moreboost.org/turbo_detail.htm#SP74

Note that most of the above were not on AEM, but factory ECU with piggy backs, and these were mostly from a few years ago and signifantly more power has been made on 74s since (other than the one 900 hp SP car at the link)

Edit: The "Q Trim" referenced at the link is the old-school Q-trim, not the new GT series wheels. I think the Ryan W. 905 whp dyno at the bottom of the page was claimed at the time to be a 74-mm compressor on a GT series exhaust wheel.
 

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Boost Junkie
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Nice. I wish someone would maintain this with newer dyno graphs.

Steve
 
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