ohanacreek
My EcoBoost has I4WD
Moderator
Lifetime Member
@joeymt33 and I did a test with a temp gun. He has one 4" and I have two 3" blowers. Covering exact same ground, his seat measured lower temps than mine. So I'm saying a 4" would be more efficient.
Also want to look at CFM, some of the 3" are only 120CFM and some of the 4" are 150CFM or so. Not sure what 4" @joeymt33 has but I searched to find a 230CFM 4" blower.
Amazon.com : Attwood Quiet Blower (White, 4-Inch) : Boat Blowers : Sports & Outdoors
I am sure @CumminsPusher 8" fans are much higher CFM