![]() ![]() ![]() granted you guys might not be experiencing the same ambient temps but thought this might help. I almost got t-boned once making a left turn because the fan was so much of a drag with the clutch. With the flex fan, it is like it is not even there and the truck flat ass goes. As far as a loss of power, try driving with the fan clutch locked up all day in 105 degree heat and see what happens when you stomp on the gas.Nothing. It also only weighs 3.5 pounds with adapter. Only gripe about the is loud and wines at highway speed. I think this was putting too much strain on the bushing in the front of the pump and caused them to leak. ![]() Here in Texas, the fan clutch is locked up almost all the time in the heat and if you weigh the stock assembly, it weighs almost 20lbs, or atleast alot. I don't know if it is a common problem, but I have owned 4 dakotas now all v8's and I have yet to have a water pump last more than 40k miles. ![]() The aftermarket flex fans will not fit the stock clutch, you need to buy and adapter from flex a lite from pepboys. I installed a flex fan on my dad's 94 5.2 and have had no problems no for almost 60k miles. Electrics just cannot pull enough air through the radiators on our daks. Lived in Phoenix at the time and the summer almost killed my Dak. 99 R/T and flex-a-lite's largest electric that would fit.a twin fan setup for upto 270hp? Truck overheated in 80 degree weather. Granted they were on two different vehicles but here's the info. Well all, I have been both routes, electric and flex. I called Perma cool and the guy that answered the phone told me he has a Ram and none of his fans would cool his truck either. I tried two different fans and put a shroud on the largest one. I had it set up with a relay to come on with the A/C and with a temp control. Even with 180 t'stat and Redline water wetter in the radiator, I could not get it to cool enough. My question is has anyone put a flexible fan on a stock clutch? '01 4.7 CC, 2wd, 5 speed, Sport plus, 3.92 limited slip, IntenseĬyber -you are right about the fan and clatch being the better set up. There are also other ways of reducing under hood temperature like different coolant and thermostats. Also, you can get electric fans that push more cfm than your stock one. If you don't already have an electric fan then you could install one on the inside and use it as a "puller". If you already have an electric fan you could put another one on the front and use it as a "pusher". I have also had people tell me that they actually had overheating problems due to a flex fan but I have never seen this for myself. I don't recommend this because it hurts and believe me, I didn't do it on purpose. Yes, I have done it with my hands several times. The fan may look like it is always spinning but in truth you can stop the fan when the engine is cool. Yes, there is more rotating mass with a stock fan and clutch but that is nothing compared to pushing that fan. The fan clutch keeps the fan from being locked in and driven when it is not needed, which is quite often (like highway speeds). Flex fans usually lose power, not add it. Okay, I'm probably gonna have people argue with me on this one. I drive my truck daily and don't want any overheating problems at idle, but am in need of more power and economy.Ģ001, 3.9, 2WD Auto, Loaded SLT Club Cab, Sport Suspension If an electric fan kit is available and better than a flex fan, the make & part numbers would be appreciated. I was thinking of a Flexalite 18" flex fan because of the existing electric a/c fan within my shroud. I need an opinion on what cooling fans are best for my truck. ![]()
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