Weekly Motor Fix: 1931 Bentley 4.5L

25 February, 2015

 

Despite my knowledge being a bit rusty when it comes to cars that are nearly 100 years old, I’ve always been a fan of old race cars. Previously I’d been scared to the point of tears at the thought of being inside one of the modern-day race cars, which was an oddity considering I was always surrounded by them and adored them, yet the thought of being inside one seemed like imminent death. With safety regulations and changes over the years, I really didn’t have a lot to worry about. Roll cages are now standard practice and the quality of safety never ceases to grow and expand.

However the race cars that I wasn’t scared of were the classics. They reminded me of Chitty Chitty Bang Bang and the thought of flying around the world. When I popped down to Caffeine and Classics on the weekend, I expected a quiet Sunday morning wander before lunch, but what I ended up seeing was quite beyond that. Seeing many Mustangs and little Minis, I had a good idea of what the majority of cars in attendance would be. I met up with a few friends and had a wander around the show, spotting a few oddities, and spotting a big green thing at the back by itself. Getting closer, a friend of mine said, “Check out the Bugatti over there!” The closer we got, the closer we realized the ‘B’ was for Bentley, not for Bugatti.

The front-mounted supercharger stood out like a sore thumb behind the headlights and horns. Working our way back through the engine, the bonnet strops, and into the cabin, it’s a remarkable sight, and a piece of engineering carefully restored and maintained to ensure it’s keep at such a high standard. It had grabbed my attention so strongly that I had to have a quick Google, which allowed me to figure out what I was looking at — a Bentley 4.5L Blower. Having once raced at Le Mans on an unsuccessful journey, the Bentley 4.5L Blower was renowned as being one of the first race cars to ever install a supercharger and, although not successful, it managed to create a stir in the circuit.

Driving one of these pre-World War II cars comes with a little more footwork than a modern car. With the accelerator situated in the middle of the floor and the brake off to the right, you’ve got to think a little harder than usual to ensure you’re not speeding up instead of slowing down. Then there’s the engine. What came as a surprise to me is that the 4.5(4)L engine is a single overhead cam straight-four, much like that of say a Honda D13B. Unlike a Honda however, there’s said to be around 40 Blowers left in original condition around the world with the market changing and the cars ageing. The owner was leaving as I was arriving however; strapping on his helmet and goggles, the man was all prepared for the journey ahead. It’s definitely not as easy as being in a modern-day car, but pedalling the Bentley beast around would certainly be an amazing piece of work to be associated with.

 

A diamond in the rough

Two years ago, Lew finished a thorough restoration and the impressive ute has taken on a new life and colour. Lew plays down the amount of effort required but, despite his protestations, I suspect he put a lot of time into the project. A few unwanted tenants were evicted along the way.
“It didn’t take me long. There had been mice living in the firewall, which had caused a bit of damage. It apparently broke down and was pushed into a shed. It was 20 years to the day when I pulled it out and it sat in my other shed for 3 years before I started on it. That’s why it’s in such good order — it’s been kept in a shed for so long and still is.”

NZ Classic Car magazine, July August 2025 issue 400, on sale now

Good for the soul, a dose of Hemi Orange – Chrysler’s champion Charger
The Australian-developed Chrysler Charger was a game changer for the company in 1971, as it faced a faltering start introducing its new VH range. The stylish big coupe signalled a massive change of direction and emphasis for Chrysler.
Auckland racing driver Rod Coppins raced successfully in Australia and New Zealand. Rod found success behind the wheel of a couple of Chargers, and it is a special E49 R/T in the custody of Mike Todd for some years, that is our feature car.
A full restoration of this car has been completed at Auto Restorations (AR) in Christchurch. We recently sampled the car, ready to be shipped back to Mike and spoke to AR’s Harry Dawber, leading the team who completed the superb restoration of this rare piece of NZ motor racing history.
I mentioned that Chrysler Chargers were never built to this standard as we walked around the gleaming Charger in its Hemi Orange colour scheme.
“We took a lot of time getting those shut lines exactly right. It’s been a great car to work on, and the paint and trim have been very well done by the team here.”