Here's a decent link for all you Vauxhall owners:

http://www.v6calibra.com/

Applies to the red top and some of the smaller engines and the V6.

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JohnA's extremely detailed and technical site, Calibra Turbo/Supra TT/etc :

http://www.max-boost.co.uk/

99% you need to know about turbocharging and more, corrected 50% of the things I know about cars.

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Tom Stickland's Astra GTE page, which covers totally stripping his car, so it weighs less than a Nova!

http://www.tomstickland.co.uk/astra/mk2astra.htm

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MarkT's Vauxhall modifications, covering hub conversions and odd things like that:

http://82.34.50.33/sytemsandsoftwaredevelopment/systems.htm

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More technical details:

http://www.icathome.plus.com/abs-zero/

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Nova/Corsa red top transplant, digidash conversion, etc., loads here:

http://www.topbuzz.co.uk/

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Extreme 16 valve engine technical stuff:

http://www.valvers.com/

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Hope some are of interest!

Some interesting stuff there, reminds me of moons ago when i was at college

cheers for that matey, may come in useful.