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<p>[QUOTE=&quot;turbobandit, post: 11309642, member: 210353&quot;]The D12 if I recall has a variable geometry turbo, meaning it spools great at low rpms while breathing well at higher rpms. Those are great turbo’s, and why it pulls down to that rpm without complaint. Also the D12 rolls back fuel past 1500 so drivers learn it is useless to try to turn it at high rpms. </p><p>Which brings me to my point I’ve been trying to make about what happens when a too large turbo is used. If you have the fuel to spool it, the 171702 is fine. If not, there are better turbos to match engine size and fuel rates.[/QUOTE]</p><p><br /></p>

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