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JPM

Johannes Persson Motorsport, or short JPM, has been founded in 1995 by Johannes Persson in the Swedish town of Helsingborg. Persson is an engineer with heart and soul, worked on combustion engines already as a kid and started his four year-long professional education as a mechanical engineer right after school. One of his intellectual mentors is professor Gordon P. Blair, a leading scientist on the subject of high-performance engines. Johannes Persson, member of the Society of Automotive Engineers, is mathematically and systematically approaching the task of engine building, which leads to some outstanding products, all marketed under the JPM label.

JPM MS230 Cylinder Heads JPM MS230 Cylinder Heads

Top-of-the-tange Type-1 cylinder heads
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JPM Rocker Arm Assemblies JPM Rocker Arm Assemblies

The especially for JPM manufactured ratio rockers are made out of forged Orvar Supreme, a premium Chromoly-V-alloyed hot work die steel and are available with ratios between 1:1.
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Push Rods Push Rods

JPM Aluminium
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JPM Push Rod Tubes Type-1 JPM Push Rod Tubes Type-1

These CSP push rod tubes are especially designed for JPM push rods with there maximum outer diameter of 12 mm.
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Valve Springs Valve Springs

JPM Single Heavy Duty
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Valve Springs Valve Springs

JPM dual Heavy Duty
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Venturi JPM Raptor for Weber IDA Carburator Venturi JPM Raptor for Weber IDA Carburator

You can't compare JPM Raptor venturis with conventional venturis because they follow a revolutionary and patented design.
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JPM Raptor Stacks JPM Raptor Stacks

JPM Raptor stacks for IDA carbs are optimized on a flow bench, are made out of high quality aluminum and black anodized.
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Camshafts JPM Camshafts JPM

Most cam shaft profiles for aircooled Volkswagen were developed in the 1970s and haven't changed or just slightly since then.
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