Australian-made Drysdale 1000 V8 –  With Phil Aynsley

Drysdale V8 1000
Ian Drysdale’s Australian made 1000 V8 – With an approximate cost of $100,000 USD these are a seriously exotic piece of machinery
Drysdale V8 1000
Drysdale 1000 V8 – Power output is 154hp with a top speed of 270km/h
Drysdale V8 1000
Drysdale 1000 V8 – Weight is 210kg without fuel but with oil
Drysdale V8 1000
Drysdale 1000 V8

Ian Drysdale has a history of designing intriguing motorcycles (and other engineering intensive machinery), most notably the 1990 Dryvtek 2x2x2 – a two wheel drive, two wheel steered off-road bike.

Drysdale V8 1000
Drysdale 750 V8 with the 1000 V8 in the background
Drysdale V8 1000
Drysdale 1000 V8

In 1995 he built his first V8, a 750cc design, then followed that up four years later with the 1000cc version seen here.

Drysdale V8 1000
Drysdale 1000 V8
Drysdale V8 1000
Drysdale 1000 V8
Drysdale V8 1000
Drysdale 1000 V8
Drysdale V8 1000
Drysdale 1000 V8 – Crankcases are custom-built for the project

The main design concept was to provide a practical exotic that could be easily maintained – hence the use of many parts from existing production models. The crankcases and 180º flat-plane crankshaft are the main custom-built engine components.

Drysdale V8 1000
Drysdale 1000 V8 – Designed to offer easy maintenance through the use of mainstream motorcycle parts
Drysdale V8 1000
Drysdale 1000 V8 – Clutch and gearbox are modified Yamaha YZF1000 items
Drysdale V8 1000
Drysdale 1000 V8 – barrels and heads based on the Yamaha YZF600 rather than the YZF400 as with the 750 V8 and eight 39mm Keihen throttle bodies are used
Drysdale V8 1000
Drysdale 1000 V8 
Drysdale V8 1000
Drysdale 1000 V8
Drysdale V8 1000
Drysdale 1000 V8

While outwardly similar to the 750, the 1000 has many changes compared to the earlier bike. Larger bore and stroke (with barrels and heads based on the Yamaha YZF600 rather than the YZF400), eight 39mm Keihen throttle bodies (rather than modified Bings), upgraded MoTeC electronics, revised rear suspension (custom Ohlins shock with cross-frame bellcrank), single radiator and a new exhaust system being among them.

Drysdale V8 1000
Drysdale 1000 V8 – custom Ohlins shock setup with cross-frame bellcrank
Drysdale V8 1000
Drysdale 1000 V8
Drysdale V8 1000
Drysdale 1000 V8
Drysdale V8 1000
Drysdale 1000 V8
Drysdale V8 1000
Drysdale 1000 – MoTeC dash
Drysdale V8 1000
Drysdale V8 1000 – Inscribed on header plates
Drysdale V8 1000
Drysdale 1000 V8
Drysdale V8 1000
Drysdale V8 1000 – The front end is from a Yamaha R1, including the brakes

The clutch and gearbox are modified Yamaha YZF1000 items, while the front suspension is from a Yamaha R1. Wheelbase is 1415mm. To date four 1000cc bikes have been built (one in naked bike form) with the price being approximately US$100,000 depending on customer requirements. Power is 154hp at 12,200rpm. Weight (oil, no fuel) is 210kg, with a top speed of 270km/h.