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Something I don't think was mentioned, for the supercharger guys like me, is you can manually turn the fans on to get intercooler temps down. It can make a huge different in boosted power.
1, The fan in an F150 is much larger and heavier than in an RX7. You can't use their numbers.
2. Dual fans means you're not using full power to cool except when you need it.
What qualifies his opinion?
Agreed that we can't compare an RX7 with our trucks. However, all the evidence based on simple laws of thermodynamics point to small incremental gains, not anything close to marketing claims as mrpositraction points out.
I'd think the folks at Ford would have designed-in efans if the benefits gained significant CAFE brownie points. I guess the same argument could be used to replace our 800lb frames with a far lighter aluminum alloy unit that's equally strong, but I'm sure it's cost/profit margin prohibitive in both cases.
I just bumped into a performance fanatic friend of mine who's put efans in 2 of his cars (not truck, so it's hard to say if it applies to us). When I asked him if he'd do it again, he hesitated for the longest time.. He immediately suggested there's bigger performance bang for the buck if one invested the same $$ on a tuner instead of a fan.
I'll just have to live with crappy A/C performance during the summer if I don't put in an efan :-(
I know this is 2004 and up but I have to know if the 2002 radiator area is the same? I really want to put a dual fan setup on my truck. The bumper to bumper traffic here is brutal.