UK Based Performance VW Engine Specialist (est 1983)

john maher racing

Project 2110 – Part 4: Dynamic Balancing

Dynamically balancing the crankshaft assembly is an important part of any engine build. This article attempts to explain why. I’ll kick off with a little theory and then demonstrate by example, showing each step of the balancing process as applied to the crankshaft,
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The importance of the 3 angle valve job

Tech Talk #9 explains what a multi-angle valve job consists of and why it’s one of the most cost effective methods of improving your engine’s performance. Graphs of before and after flow tests illustrate the gains, plus a brief explanation of why there’s also an
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John Maher TV interview, 1999

In January 1999 a TV crew spent the day filming at the JMR workshop. The 6 minute segment was shown in the second programme of a six part series, ‘Stars & Cars’. Originally broadcast on May 6th 1999, it includes archive footage of my previous incarnation as
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First batch of ‘Tech Talks’ added

I’ve added the first five posts to the Tech Talk section of the site. This area features discussions on various topics related to the building of performance VW engines. This first set of five are from a selection of posts I’ve contributed to the Cal-Look Lounge
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Performance Art

‘Performance Art’ – VW style! An Lanntair is the largest art gallery in the Outer Hebrides.  In April 2010 they asked if I’d be interested in creating an exhibition centred around my work with Volkswagen engines. Never having thought about presenting a
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JMR 1954 race car

From the archives

The first in a series of photos and stories from my 30 plus year involvement with Volkswagens. Avon Park, 1993. That’s me behind the wheel of my self-built tube chassis 1954 oval race car. Engine was a normally aspirated 2165cc, fitted with a pair of 48IDAs which I’d
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Purejuice

Photos and info being added daily

Latest additions to the new website are a selection of calculators. The Gear Ratio Calculator is a brand new programme I’ve put together that calculates exact mph in each gear in 100rpm increments, all the way up to 8000rpm. It includes an automatic tyre diameter calculator
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