Dyno run, Dodge 230 flat head- After, 60.41 hp

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Posted by chris case [75.36.32.237] on Wednesday, June 20, 2012 at 15:54:15 :

Woohoo! Broke the 60 hp barrier! 60.41 at about 3000 rpm, 124 ft lbs @ 2050.

My 'before' reading was in 2008, 55 hp @ 2700, 127 ft/lbs at 2050.

I have to scan in the graphs, but the mandrel bend tube headers, mandrel bend equal length intake, and Carter BBD 2bbl leveled the torque curve a bit and improved the horsepower in the 2200 to 3500 range.

Any further improvement would probably need a camshaft. I had been thinking valve springs, but wouldn't valve float cause a faster drop at a given rpm? The graphs show a smooth curve.


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