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#1
04-29-2019, 09:27 AM
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Electric fan buzz?
Curious if anyone has run into the buzz problem with their electric fan setup? Just got my engine running yesterday , and while the fan and controller worked perfectly, there is a loud electrical buzz when I turn the variable speed fan to high, and a moderate buzz when fan is running at lower speed.
From my research, the buzz can be common with some fans, but not typical with the Mark 8 fan. Auto Cool Guy website sells a "buzz box" for $65 that sits between the controller and fan. I understand the box emits short signals to fan when it is off, which supposedly addresses the electrical buzz. Any experience out there with this problem? Sent from my SM-G965U using Tapatalk
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68 Firebird-- Street/Strip - 400/461 Eagle Forged Bottom End & Ross Flat top pistons. KRE 325 CFM D port, Ultradyne 263/271 @.050, .4267 lift. Crower Solid roller lifters and 1.65 stainless rockers. Quickfuel 1000 on Torker2 intake and 2" open spacer. Hedman 1.75" headers. TH400 w/brake. Ford 9" w/3.80 gears & 28x9 Hoosier pro bracket drag radial. Best ET: 1.35 60ft, 6.29 @ 107.20 mph, 9.99 @132.33 mph. 3,300 race weight |
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#2
06-06-2019, 04:52 PM
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Update... I installed a couple of large capacitors between power and ground to the fan, and to the control box. 80% of the buzz is gone!
Sent from my SM-G965U using Tapatalk
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68 Firebird-- Street/Strip - 400/461 Eagle Forged Bottom End & Ross Flat top pistons. KRE 325 CFM D port, Ultradyne 263/271 @.050, .4267 lift. Crower Solid roller lifters and 1.65 stainless rockers. Quickfuel 1000 on Torker2 intake and 2" open spacer. Hedman 1.75" headers. TH400 w/brake. Ford 9" w/3.80 gears & 28x9 Hoosier pro bracket drag radial. Best ET: 1.35 60ft, 6.29 @ 107.20 mph, 9.99 @132.33 mph. 3,300 race weight |
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