|Well… a bit of a change of plan here. Completely by accident I got my hands on a 3.0L V6 Peugeot/Renault lump, and wow, it’s so much better than the Vauxhall lump! Ports are bigger, valves are bigger, valve guides look like they’re bronze, it had verniers as std, bore is slightly bigger (87mm) and stroke is shorter (82.7mm). all in all, that lot sounds good, but the killer blow is that it’s all aluminium, and weighs much less than the GM lump. It makes similar power as standard to the GM lump, but with some TB’s it’ll scale nicely, especially with a shorter stroke. It’ll be much cheaper to get to 300bhp+ levels with standard internals. Apparantly some of the Peugeot 406 lot have had the engine supercharged and hit 500bhp! The conversion costs 7k though, but that’s a lot cheaper than frank denker paid for his supercharged v6.
Changing tack does introduce some annoyancies… firstly, the flywheel weighs a ton! Secondly, the flywheel has the bosch 60-2 crank timing disk built onto it, so I’ll need to move that somewhere else. Thirdly, I’ve just bought a bellhousing to fit the gm v6 to the T5, which I’ll have to sell on, and lastly, there are less tuning parts for this engine available. All these will be a pain but there are no show stoppers in there.
Goodbye Vauxhall V6!