Anyone guess how much HP at the tire you can gain from upgrading to an electric fan? I already have a 200amp alternator... just wondering b/c I am going to buy one...
Almost no hp gain. One guy from another forum actually reported a torque loss.
Read through the last 2 months of posts here and see how many E fan problems people have, it's alot. Works better on newer cars because the computer controls the fan, not an aftermarket fan controllers.
Spend the money elsewhere.
Only time i think it helps is to get the a/c to work better at idle.
For a hp gain estimate, consider it this way, removing the entire belt gains somewhere in the vicinity of 25rwhp, that's no PS, no water pump, no alternator, and no fan.
You'll just be removing the fan, you still have to turn the water pump.
I had underdrive pulleys on my 92. I installed an e-fan and on the advise of the fan manufacturer, went back to stock pulleys and a 140 amp alternator. I haven't had the car dyno'd but I noticed performance was a little better with the e-fan than with the underdrives. As far as torque loss, I can't tell...... To me, there is a noticeable difference in the performance and that makes it worth it to me.
Oops! I meant to say, ELECTRIC fan. Whats the best fan controller? I dont want to have all the same issues that everyone seems to be having with their efans...