The reason I did it...
The reason I wanted to measure the back pressure in the first place, is because I noticed that the resonator exhaust tips that I'm using (Pace Setter Monza) actually restrict my 2.5" tailpipes down to 1.75" to allow room for the glass pack material. I figured that must hurt power by increasing back pressure. I have new Hooker non resonator unrestricted tips ordered fron Jeg's that should be here Friday.
First thing I'll do is retest the back pressure. Second thing I'll do is do a G-Tech run to see if there's any difference. Eventually, I'll get back to the track for definitive tests when the weather is cold and dry. I'm hoping for a few more ponies at the wheels. Might dyno it again if it looks like there are any gains.
Rev
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'66 Coupe, 306, 350-375 HP, C-4, 13.07 e.t., 104.8 mph, 1/4 mi.
O.B.C. #2
'66 coupe
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