993 Faq Frequently Asked Questions about the Porsche 1994-1997 993


Motorsound airbox mod

Filed under: Modifications — admin @ 6:08 pm

You can quickly and easily modify your airbox cover to increase induction noise.

See this DIY: http://www.pcarracing.homestead.com/airbox.html


Oil cooler fan switch

Filed under: Do It Yourself (DIY),Engine,Modifications — Jeff 993TT @ 6:09 pm

You can override the thermostat which controls the high speed oil cooler fan. The fan operates in two modes, low speed and high speed. By shorting a wire on the climate control unit ( CCU ), you can force the high speed operation.

This has been especially useful when you are stuck in a long line of traffic or when you are coming off the track into the paddock area. It’s really amazing how fast it brings the temps back down. More information about installing an oil cooler fan switch can be found here: Installation of a manual oil cooler fan switch

Before you install the switch, you will want to verify that your oil cooler thermostat is working correctly. You can find directions here: 964/993 Oil Cooler Fan Operation & Troubleshooting

If you are concerned about premature fan failure, the fan costs about $100 to replace. I would not recommend that you run all the time in the high speed mode, but, as mentioned above, during traffic and during cool down periods in the paddock, it is invaluable. Oil is the lifeblood of your engine, be sure to keep it cool!


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