"This is the diff MS3928 that is on my 3-4½ Litre 1222"

1931 Bentley 4½-Litre "Blower"
Coachwork In The Style Of A Birkin Team Blower
CHASSIS NO. MS 3928
ENGINE NO. SM 3921

- One Of The Original 50 Factory-Produced Blower Bentleys
- Rebuilt To Le Mans Racing Specifications
- Robust Tour Car With Proven Performance
- Built Just After The Change To The Desirable Ribbed Blower Casing
- Eligible For Vintage Racing And Rallies Worldwide

- Inline Four-Cylinder Single OVerhead Camshaft 4 1/2-Litre Enginge With Four Valves Per Cylinder And Forced Induction By Roots-Type Supercharger
- 182 BHP At 3,900 RPM
- D-Type 4-Speed Close-Ratio Gearbox
- 400 mm 4-Wheel Drum Brakes Semi-Elliptic Leaf-Spring Suspension With B&D Friction Shock Absorbers

These photographs were taken by Edward LaBounty during the 2008 NAVBM.

This car is owned by Noble from CT.

During the North American Vintage Bentley Meet 2008 in Stowe, Vermont.

Photographs were taken during 2003 race at New Hampshire International Speedway.

"These photos taken was when we brought two of our Blowers to the New Hampshire Concours. Notice the second in the background of the middle photo."

Photographs were taken during 2003 Vintage Sports Car Club of America /Jaguar meet at Lime Rock Park.

The first 25 production Supercharged 4½ Litre cars where Chassis Nos. SM3901-SM3925, all with "smooth-case" blowers. The next 25 were Chassis Nos. MS3926-MS3950 and had "rib-case" blowers.

Production Blower Bentleys had handbrake handles made from rectangular stainless steel, whereas the five 4½ litre race cars for Tim Birkin had the "H" section handle, but were drilled for lightness.