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Hello Everyone. I am looking forward to taking on my upcoming DeWitt Radiator upgrade. I will also be replacing both the expansion tank and all of the hoses for both the radiator and the expansion tank.
While I have all that work ongoing, I am considering the inclusion of the DeWitt fan upgrade. The vendor claims both a 100% increase in the cfm capacity and a "plug and play" feature.
My ask, please, is this: has anyone installed these DeWitt fans? May I ask for your feedback?
My research on the site here ends around 2007/2009.
I am driving a 2004 coupe.
I did a similar upgrade last year where I replaced my hoses, water pump/stat, coolant overflow tank, plugs/wires, and installed the DeWitts aluminum radiator and fan kit. Everything works great but I did notice the new fans are louder than the OEM fans. Also, you will need to zip tie the electrical harness as the new fan kit does not have the plastic lock rings attached to connect the harness.
When an engine builder asked me what fans I ran on my C5s DeWitts radiator, I told him I still had the OEM fans, and no issues. His response was "Good, they're as good as most anything else available, and better than some. I have a built LS7 in my C5, with the DeWitts. It has never overheated. Runs 180°-185° on the freeway, 195° around town. This is from October to May, give or take a month, in Florida. I'm also running a 25% UD ASP balancer. Stock works fine for me. My .02, YMMV......
Unnecessary in my opinion. I had the Dewitts radiator with the EOC and OEM cooling fans on an 01 Z06 that was auto crossed and HPDE driven regularly in both southern CA and FL. The car never ran hot no matter what the ambient temperature was.
Thank you for your feedback, I thought the real difference was related to the radiator upgrade. When I had my 95 I did the upgrade and was very happy with it.