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Registered
Join Date: Dec 2005
Location: Rancho Cucamonga Ca
Posts: 361
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I am not a turbo guy so I hope I don't get blasted for posting on this forum 
The fan switch is set to come on at 240. Way too high in my opinion. I wired a manual switch so I can control the fan myself. You can find the instructions on the DIY section on this site. There is also a BMW thermo switch upgrade that turns on the fan at around 210. I also blocked off the bottom of my cooler to trap the air from escaping. That and the fan helped lower the temps about 15-20 degrees.
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'75 911S Silver Anniversary #164(Formerly JTO's)
Rebuilt 2.7 with full ARP, 9:1 CR.
SSI, GHL, ER polybronze bushings, finned oil lines.
Lowered and corner balanced. CIS retired, now PMOs!
'65 912 slate gray sunroof (driving project)
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