The old 1.5 8v engine was quite sick after our sprint day in March, so we decided it was time to build the 16v engine. We’d been collecting parts for the engine for years, but just needed a hurry up!
- 1.7 block with a 1.5 cranks (makes 1.6, to keep me in class)
- Cat cams 288deg/12.1mm lift + valve springs, retainers, buckets
- Everything lightened and balanced.
- 10.2:1 compression
- Standard valve sizes etc.
- Dellorto 45 carbs.
Definitely no rocket-ship, but no ‘hand grenade’ either hopefully. A good solid power upgrade, with a surprisingly wide flat torque curve. Not angry and peaky at all, with a nice idle and everything. This is definitely the start of development though – need to improve the exhaust, and cold air intake, and more revs…
Here’s my first test day at Winton raceway – still running in only using 6500rpm and with no brakes or tyres but still matched my personal best with the old engine.
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- An empty void…
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- 1.7 block.
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- A 1.5 crank.
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- Checking deck height for machining.
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- Crank test fitted before being machined.
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- Standard rods and pistons, lightened and balanced
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- Standard valves
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- Cat cams medium race cams
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- Checking clearances
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- Custom carburettor adapters
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- Double-row bearing tensioners
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- Shiny
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- Cam wheels fitted
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- 33 P4 exhaust adapted to fit
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- In the car!
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- First start up
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- Dyno tuned.
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- Winton test day.
January 5, 2016
Hi , good to see Alfasud racing. Build one myself here in Malaysia for classic race.