Deboss Garage’s “Debocho” Audi V8 Quattro is an awesome LS-powered Frankenstein

Deboss Garage, Quattro, ice racing on frozen lake in Gracenhurst, ON, Feb 2018

The Chevy LS V8 motor is probably the most common for engine swaps. I’ve seen LS swaps in everything. I’ve seen LS V8s in BMW M3s, Nissan GT-Rs and even Honda Civics. However, I’ve never seen one in a 1990 Audi V8 Quattro. To be honest, I didn’t even know it was possible to stuff a massive LS V8 engine in an Audi V8 Quattro while still keeping its all-wheel drive system, as the V8 it already has sticks out too far as it is, and the LS is a lot bigger. So shoehorning a massive LS under its hood seems like madness. Except that’s exactly what Deboss Garage recently did, creating the “Debocho” Audi Quattro.

This is one of the craziest builds of any kind I’ve ever seen. And I mean that as a compliment. Deboss founder Rich Bosch built this car almost entirely by himself and it seems as if he said “I’m gonna make the Audi V8 Quattro work with an LS no matter what”. And he did.

Deboss Garage, Quattro, ice racing on frozen lake in Gracenhurst, ON, Feb 2018

The massive LS V8 looks so big under the hood that it seems as if the rest of the front end won’t fit over it. But, alas, it does fit, somehow. But “Filthy” Rich Bosch didn’t stop there, he fit four huge Borg Warner turbos from a Cummins diesel engine. And they’re in the back seat. The plumbing from them runs from the back seat to the engine up front and it looks absurd, hilarious, fantastic, incredible and the list of superlatives is too long for me to type.

Even crazier is the enormous intercooler that sits in the rear window, which is so big it sticks up over the roof of the car just to fit everything. Then, there are three electric fans mounted in the trunk. It seems like it could never actually work, that it would just end up in a fireball. Except it doesn’t, it runs and runs well. And with all of its V8 might and quad-turbo boost, it makes 694 hp and 550 lb-ft of torque. So it’s more powerful than an Audi R8 V10 Plus but weighs a lot less.

From the outside, it looks like a junkyard build that has no chance of working or being any good even if it does. However, the amount of really impressive work and the ingenuity that went into it is unquestionably intriguing. So much so that former Le Mans winning racing driver Justin Bell took it for a drive. Admittedly, its frost plug broke when Bell was driving it, scaring him a bit as huge amounts of heat rushed toward him as the car overheated. Still, he said it handled really well and he seemed to enjoy its wonderful absurdity.

The Deboss “Debocho” Audi V8 Quattro is one of the most fascinating car builds we’ve ever seen. We love that it still looks like an Audi V8 Quattro, we love that it still has Quattro all-wheel drive despite the difficulty and we love that it exists. It’s the sort of insane, hilarious thing that makes being a car enthusiast fun. Check it out.