Since removing the belt fan and shroud I've noticed the car runs cooler on the highway. I connected the dual pusher fans (standard on the 91) to a thermostat, the slow speed keeps up with city driving fine.

I think airflow with the stock belt fan is not as good as it could be. There is so little room between the fan and engine the air has no place to go. With the fan gone air can flow past the engine and out the bottom of the car easier.

-J


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1991 350SDL. 230,000 miles (new motor @ 150,000). Blown head gasket

Tesla Model 3. 205,000 miles. Been to 48 states!
Past: A fleet of VW TDIs.... including a V10,a Dieselgate Passat, and 2 ECOdiesels.
2014 Cadillac ELR
2013 Fiat 500E.