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Kristof Mombaerts' 1991 Porsche 911 Carrera 4

Does this timeless classic require a function-over-form approach?

David Putty
Aug 30, 2012
Eurp 1208 04+1991 porsche 911 carrera 4+side view Photo 1/11   |   Kristof Mombaerts' 1991 Porsche 911 Carrera 4

We don’t like to use labels when defining what people do with their cars. After all, the only real definition is the most general one that describes us all: car enthusiast.

Admittedly, that’s a general term but it addresses anybody with even a mild passion for automobiles, and has served us all well for decades. And any terminology intended to pare down the expression into something less inclusive can be a negative process.

For example, look at recently defined stance scene. Since the early days of hot-rodding, enthusiasts have paid close attention to how the cars sits, with the Euro scene being renowned for its perfect stance and infinite variations.

We won’t get into the politics on whether you should focus overwhelmingly on a vehicle’s stance, but considering the subject of this article, we can’t help but raise the question: When a car’s ride height and wheel/tire selection is governed on stance over anything else, should some cars be off-limits? Obviously, it’s a rhetorical question but one we’re happy to explore.

It can be argued that the Porsche 911 sits alone atop the attainable dream car heap as the icon among icons. It’s revered by enthusiasts and pseudo-enthusiasts alike, making its something most of us aspire to own one day. So does this timeless classic require a function-over-form approach?

Eurp 1208 08+1991 porsche 911 carrera 4+front wheel Photo 5/11   |   Kristof Mombaerts' 1991 Porsche 911 Carrera 4

Belgian owner Kristof Mombaerts knows the answer to the question but considers it unimportant. “When I was ten years old I had bed sheets with pictures of a blue 964 on them – how could my dream car not have been a 964?” As is typical, Kristof spent years saving enough money, getting his wife’s approval and searching for the perfect 911. But why a 964? “The 964 was a real Porsche,” he answered quickly. “It was air-cooled, looked great and is fairly affordable compared to the 993. It’s also comfortably and has up-to-date options that make it perfect for daily driving.” Sensible stuff, we agree.

Did his quest include purple? “It’s actually called Amethyst,” Kristof clarified, “and it’s not a color you see every day, even though it’s still a current offering on the newest 911. When I saw it for sale it had all the options I wanted and was in the right condition. But the truth is, I thought the color was fugly. Yet when I saw it in person, I was sold. And so was the car!”

This 964 isn’t swimming in a sea of mods, but since it’s a purple 911 it didn’t need to be. Kristof put his modding efforts into the suspension and wheel departments. “I run a business here in Belgium called Black Sheep Wheels. We cater to a contemporary clientele that’s focused on the best and latest wheel styles. To best show off the wheels we sell, my car simply had to fit in.

“Yes, it’s low, but it got that way with a set of KW V3 adjustable coilovers, and even at this ride height my 964 remains the sports car it was meant to be.”

For the choice of wheels, it was simply a matter of deciding which style of Rotiform he would use. “BS Wheels was one of the first companies to partner with Rotiform in Europe,” Kristof explained, “so we’d obvious use the brand I sell the most. They’re a quality product built to my spec.”

Eurp 1208 11+1991 porsche 911 carrera 4+seats Photo 9/11   |   Kristof Mombaerts' 1991 Porsche 911 Carrera 4

Those specs included directional TMB Forged Race wheels, 18x8.5 and 18x10.5” front to rear. The tires are 215/35 and 245/30 Yokohama, respectively.

Of course the Amethyst 964 is sporting more than suspension and wheel mods, but like the car itself (color notwithstanding) they’re subtle and purposeful in nature.

The 3.6-liter flat-six doesn’t need much help from the aftermarket, but Kristof figured an RS ECU, clutch and flywheel upgrade wouldn’t hurt, and some exhaust work added a glorious air-cooled howl.

On the exterior you’ll notice RS front ducts and rear bumper mid-section, as well as US-spec rear lights, Cup mirrors and 105mm exhaust tip.

While on the inside, complementing the OE Magenta leather interior, is a black powdercoated Wiechers half cage.

So should the Porsche 911 be hands-off to the stance crowd? The purists would certainly have you believe that, but the upsurge in older 911s has opened them up to a new band of adventurous owners prepared to have fun with these rear-engined icons. And Kristof will confirm the fun he’s having and attention his business is getting means he couldn’t care less what the anti-stance purists think.

Eurp 1208 10+1991 porsche 911 carrera 4+interior Photo 10/11   |   Kristof Mombaerts' 1991 Porsche 911 Carrera 4
Eurp 1208 09+1991 porsche 911 carrera 4+engine Photo 11/11   |   Kristof Mombaerts' 1991 Porsche 911 Carrera 4

1991 Porsche 911 Carrera 4

Owner: Kristof Mombaerts
Location: Lummen, Belgium
Occupation: Owner
3.6L “flat-six” with RS ECU chip, Cup pipe, G pipe exhaust, K&N filter
Stock five-speed manual, RS flywheel and clutch
KW Variant 3 coilovers
Wheels & Tires:
18x8.5” front, 18x10.5” rear Rotiform TMB Forged Race three-piece with 215/35 R18 front, 245/30 R18 rear Yokohama
RS front ducts and rear bumper mid-section, US-spec tail lights, Cup mirrors
OEM Magenta leather seats and door cards, Wiechers half-cage
Pioneer radio/CD/MP3/USB with stock speakers
My wife, Jason and Brian at Rotiform, Darren Bennet

By David Putty
12 Articles



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