Turbos have inherent lag due to their weight and exhaust flow. You can reduce the weight by making them smaller but then they run out of output at high rpms. You can also reduce the weight by making the impeller lighter but that's rather expensive. You can use two turbos as some cars do. A small one that spools up fast for low rpms and a larger one with higher output and longer delay for high rpms. Obviously this is expensive also. There are also variable ventury turbos that try to overcome lag that way. Right. Expensive too. Your Porsche is alot better because you can buy two or three Volvos for the price of one Porsche. But obviously you do get more than just a better turbo. The TurboBricks web site has alot of good info.

Perhaps this is what you are looking for:

http://au.geocities.com/ozbrick850/engine-turbo-keithspage.html#wastgatadj
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Dave in Virginia; 1998 V70 T5(M): IPD MOTRONIC+ ECU Upgrade, Sport Muffler, IPD Strut Tower Brace; VDO Boost Gauge, IPD Anti-Sway Bars, Rocha ABS Control Unit, Koni FDS Struts and Shocks/// 1988 245 DL Wagon// 1967 MGB Roadster

Add an antilag system like rallycars use. They sound AMAZING--they totally mess up valve timing in order to push unburnt fuel into the exhaust which explodes there and keeps the turbo spooled! A royal hoot indeed. But your turbo/engine will only be good for a few thousand miles....

Other than that, a different turbo would work.

Good luck.

Nate
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1997 850, 1979 242GT, 1990 740GL

Just down shift and play! No, the lag is inherrant to the design of the turbo.

Klaus
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The 164 has a new home, all I am left with are a 95 854T and a 98 V70R :)