Irving Vincent P5 two-valve 1300 cc racer

Irving Vincent 1300 Two-Valve Racer

Here’s a bike well-known to Aussie race-goers, though probably not as effectively recognised elsewhere – the Irving Vincent.

Seen right here in 1300 cc type on the 2016 Phillip Island Basic. The Horner brothers have constructed a minimum of 18 of their machines (together with sidecars) over time to compete in numerous classes of traditional racing.

Since 2003, Ken and Barry Horner have been establishing their Irving Vincents fully in-house at their firm KH Gear in Melbourne.

The corporate manufactures starters for the mining business (primarily) so entry to all the perfect casting, milling and CNC tools was not an issue!

Design planning started in 1999. Ken and Phil Irving had many conversions relationship again to the ‘70s on the “modernisation” of the Vincent and permission to make use of the ‘Irving’ identify was obtained from Phil’s widow after his demise in 1992.

Since that 2003 debut on the Geelong Pace Trials, Irving Vincents have competed around the globe with victories at Daytona (Battle of the Twins) in 2008 and the Goodwood Pageant of Pace in 2014. To not point out many, many wins on residence soil.

Maybe essentially the most shocking factor in regards to the bikes is that the Horners have managed to boost the unique Vincent ’s 55 hp to 186 hp (in 1600 cc 4-valve type) whereas nonetheless maintaining the looks of that well-known motor mainly intact. The internals are one other matter fully!

Loads of know-how and design expertise from NASCAR and V8 Supercar engines has made its method into the motor, significantly within the areas of cam profiles and combustion chamber form.

A 3-gear major drive, way more environment friendly lubrication system, five-speed drum-selected gearbox, new cylinder heads and MoTeC digital ignition system are just a few of the a whole bunch of modifications made to the essential 50º V-twin’s design.

The 1300 cc two-valve Interval 5 bike I photographed has a 13:1 compression ratio, 100 x 82.55 mm bore x stroke and makes 160 hp at 7000 rpm. Torque is 125 ft-lb at 6000 rpm.

A contemporary chrome-moly metal model of the Vincent’s backbone body holds 3 L of oil and is used along with a cantilever rear shock. Once more as per the unique the engine is a careworn member.

Other than the bike’s outcomes most likely the largest affect it has on those that have been fortunate sufficient to observe it race is the completely wonderful noise it makes!

Irving Vincent 1300 Two-Valve P5 Racer Specs

Irving Vincent P5 Racer Gallery