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Discussion in 'Motorized Rat Rods' started by snorks, Apr 13, 2020.
Now that it's ripe I think I will restart this dirty rat. DT 50 pipe.
I realised i had a nice 18mm Delorto from an old 1950s Garelli. Turned up an inlet manifold ...wow...the power difference from the old stock unit is crazy. Beautifully made carb. Jetting seems perfect. Wish I had faced off another 6mm to give me more space to fabricate an air filter. Needs some brakes also.
That exhaust looks so classic - like the days of Roger Decoster.
Thanks. The front of the pipe was rotten when I got it so I cut it back to where the steel was solid, fabricated a new extension of the diffuser. The original pipe was a larger diameter at the cylinder though. Long story short I think I need to add about 2 inches to the header. This motor is about 12 years old. But fairly low total hours. Inlet port is actually quite big. Its a pity the stud spacing is so close together on both manifolds.
So next steps Air filter, brakes, lengthen header.