FASTEST Cadillac CTSV in the World – 106mm TURBO!

A Cadillac CTS-V owner ripped out the factory supercharger and replaced it with a 106 millimeter turbo, roughly tripling the car’s horsepower and putting it into low 7-second quarter mile territory. This run was the setup’s maiden voyage, bugs and all, and the video does not hide that. Comments have zeroed in on the turbo’s jet-engine presence and the fact that the interior is still mostly intact despite the radical power increase. Watch the run and see what 1,600-plus horsepower looks like in a car that still has a back seat.

A car this powerful is not supposed to look this ordinary. From the outside it is still a Cadillac CTS-V, badges intact, seats in place, a back seat someone could theoretically sit in. Pop the hood, though, and a turbo the size of a dinner plate sits where a factory supercharger used to live, and the number attached to that swap is not a modest bump, it is a full tripling of the car’s original output. On its first real outing, that much power was never going to be simple. What actually happened is exactly the kind of chaotic, half-finished glory that makes this kind of video worth watching in the first place.

A Factory Supercharger Was Never Going to Be Enough

The car at the center of this video is a Cadillac CTS-V that its owner decided was not fast enough running its factory supercharger, a bold starting position given that the factory LSA V8 in these cars already made a genuinely serious 556 horsepower from the showroom floor. Rather than stick with forced induction from GM’s own parts bin, the owner tore out the blower entirely and replaced it with the largest single turbocharger he could source and fit, a setup the video’s own description puts at a 106 millimeter compressor wheel. Full driveline builds capable of surviving this kind of power increase typically require an upgraded transmission, a stronger rear end, and reinforced axles, all of which have to be sourced and installed well before the turbo itself ever sees full boost.

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What a 106 Millimeter Turbo Actually Does

That single change is described as tripling the car’s horsepower output, a claim that lines up with what a turbo of that size is genuinely capable of supporting on a built LSA short block with the right supporting fuel system and management. Triple the factory 556 horsepower puts this Cadillac somewhere in the neighborhood of 1,600 to 1,700 horsepower at the crank, a figure that belongs in the same conversation as dedicated drag-only builds, not a car that still, on paper, seats five.

Honest About Being a Work in Progress

The video’s own description sets expectations honestly: this was the car’s maiden voyage on the new turbo setup, and it needed bugs worked out before the team expected to see it run consistent numbers. That kind of transparency is refreshing in a genre of content that often edits around failures entirely. Here, the imperfect first pass is the point, not something to be hidden, because a 106 millimeter single turbo making this much power almost never behaves perfectly the first time it sees full boost.

Low Sevens, With the Bugs Still In

Even in an admittedly unfinished state, the car is already described as capable of low 7-second passes in the quarter mile, a genuinely absurd number for anything wearing a Cadillac badge and full street-legal bodywork. For context, a low 7-second quarter mile time places this CTS-V in performance territory usually reserved for purpose-built Pro Mod cars, not a sedan that started life as a factory-built luxury performance car sold through Cadillac dealerships. Passes in that range typically require a parachute or a serious brake package just to bring the car back down safely from well over 190 miles per hour by the far end of the track, another layer of engineering most viewers never think about when they see a headline number like low sevens.

Where This Build Fits Into 1320Video’s World

This particular build fits squarely into 1320Video’s larger catalog, a channel built entirely around exactly this kind of extreme street car culture, covering events like Drag Week, Street Outlaws-adjacent grudge racing, and no-prep events where builds like this turbocharged Cadillac are treated as completely normal rather than exceptional. The channel’s description promises everything from twin-turbo Lamborghinis making over 2,000 horsepower to 800-plus horsepower four-cylinder Toyota MR2s, and this CTS-V slots right into that same anything-goes philosophy.

Why Viewers Kept Rewinding the Spool-Up

Viewers in the comments picked up on the turbo’s sheer physical presence immediately, with several noting how the setup looks almost like a jet engine bolted where the Cadillac badge and factory intake used to sit, and more than one commenter admitted they simply added a timestamp to the video specifically so they could rewatch the turbo’s distinctive spool-up sound on repeat. That reaction, focusing on the sound and visual spectacle of the turbo itself rather than the elapsed time, says something about what this particular audience actually values in a build like this.

Still a Street Car, Somehow

Several commenters also zeroed in on just how street-driveable the car still appears despite the extreme power increase, with one specifically noting that it is still a street car with almost a full interior intact, a detail that stands in contrast to the gutted, roll-caged shells that a lot of comparably powerful drag builds become. Keeping a car this radically modified genuinely streetable is its own significant engineering challenge, one that goes well beyond simply bolting on a bigger turbo and hoping for the best.

The Appeal of Watching It Unfinished

What ties the whole video together is the sense of a build genuinely still in progress, captured honestly rather than presented as a finished product. The team behind the car openly says they cannot wait to see it fully dialed in, and that anticipation, watching real engineering problems get worked out in real time rather than after the fact, is exactly the appeal that separates 1320Video’s content from more polished, heavily edited car channels.

What Comes Next for This Build

Watch the full run to see the 106 millimeter turbo do its work for the first time, bugs and all, and keep an eye on 1320Video’s channel for the inevitable follow-up once this Cadillac actually gets its promised sixes. Builds like this rarely stay static for long, and 1320Video has a track record of returning to cars exactly like this one for a follow-up once the bugs get sorted and the sixes finally show up on the scoreboard.

Check out the full video above and let us know what you think in the comments.

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