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Interesting. Thanks for the document.
I know Mahle now makes Nickasil cylinders smaller than 90mm. I thought that when Porsche used Nickasil on the 917 with great performance, they decided to solve the 911ST problem at the same time. I would think they would not bother with the smaller bores and would go straight for the 89mm 2500cc short stroke which they knew offered the best performance.
Do you have a time period for the smaller Nickasils or was this something done after the 911ST had been developed and replaced by 911 Carrera RS/RSR?
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1971 911S, 2.7RS spec MFI engine, suspension mods, lightened
Suspension by Rebel Racing, Serviced by TLG Auto, Brakes by PMB Performance
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