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Evan Smith · 11-18-2009, 03:18 PM

Most factory supercharged engines are designed with low compression and very mild cams, so it is not really a good comparison to say the blower adds "X' amount of hp. The blower is used in lieu of displacement to make mid-range torque for good throttle response and overall power and economy. Blowers and the output they provide are also greatly affected by boost level and engine tune. Going from 8.5 to 10.5 compression can be worth a ton of power, which is usually the range of blown and unblown OE engines these days. Going from 7 psi to 15 psi can add power, timing advance can also add power, it's not just a matter of adding or subtracting a blower.

Putting an aftermarket blower on most of today's V8 engines can yield anywhere from 125-175 horsepower depending on boost level.

Evan

11-18-2009, 03:18 PM	#7
Evan Smith Member Join Date: Nov 2001 Location: Tampa Posts: 400 Likes: 7 Liked 115 Times in 5 Posts	Re: Ford cj hp question Most factory supercharged engines are designed with low compression and very mild cams, so it is not really a good comparison to say the blower adds "X' amount of hp. The blower is used in lieu of displacement to make mid-range torque for good throttle response and overall power and economy. Blowers and the output they provide are also greatly affected by boost level and engine tune. Going from 8.5 to 10.5 compression can be worth a ton of power, which is usually the range of blown and unblown OE engines these days. Going from 7 psi to 15 psi can add power, timing advance can also add power, it's not just a matter of adding or subtracting a blower. Putting an aftermarket blower on most of today's V8 engines can yield anywhere from 125-175 horsepower depending on boost level. Evan __________________ Evan Smith 1798 STK Last edited by Evan Smith; 11-18-2009 at 03:22 PM.