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Supercharging

This is a new section that will cover when we fitted a Shorrock Supercharger to our Anglia Van

Background

After reading period tuning books like Tuning Anglias & Cortinas and Tuning Four Cylinder Fords we were keen to find out what forced induction 60's style like

The problem was finding a kit, although the small C75b blowers themselves come up quite regularly it was all the brackets and inlet manifolds that proved to be an issue, then a chance contact through the auction site e-bay led to a meeting with a chap who had a full kit for a Pre-Crossflow engine.

Fitting

To get the kit up and running we enlisted the help of Northampton Motorsport. It was a journey into the unknown for all concerned so with a photocopy of the original installation instructions and a box of bits we set about the install.

Performance

After a couple of attempts, the chaps at Northampton Motorsport were able to get the Blower set correctly and after a couple of power runs the set up made exactly what the original Allard brochures said, 63bhp at 7psi of boost which was over a 50% power increase over the standard 39bhp, not bad for bolt on modification.

Then.......

After running the van around for a while it all ended in tears one very cold night at the side of the M25. What we hadnt considered was the diff ratio of the van, 4.4:1, this meant that engine revs were high at motorway cruising speed, around 4800rpm at 70mph. 

The high engine revs meant the already over sped blower was running at around 6000rpm for a long period of time, as a result a bearing seized and it was Game Over Player 1.

We spoke to Derek Chinn Engineering in Bedfordshire who could rebuild the blower but the cost was high, approximately 900 so the project has been shelved... for now.

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