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1988 Porsche
Carrera Backdate M471

1988 Porsche
Carrera Backdate M471

A very personal build for the shop: a 1988 Carrera backdated in the spirit of the lightweight Carrera RS, named after its M471 option code. The goals were simple to write and hard to hit: street use, 100 hp per litre, and under 2,400 lb.

The donor engine was worn out, so it came out and was torn down straight away. The new 3.5 litre high-compression engine has twin-plug heads reworked by Blackbird Technical Service, bespoke valves and retainers made in the UK for the project, a heavily revised oiling system and 964 cylinder air guides. Individual throttle bodies under a GT3-style plenum, a Motec M130 with active knock control and a TTE exhaust tuned to the intake complete the package, while round one of weight reduction removed about 200 lb.

See more customer builds on our projects page, read about our Porsche service and repair, or book your car in.

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What our customers say

Google reviews from Porsche and European car owners across Calgary. See all reviews.

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Josiah Lau
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Highly recommended. Prices are much better than at the dealership or other specialized Porsche shops. I really appreciate the work Mike and his team did for me. I trust him with my car!
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Elaine Macpherson
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I love, love, love this place!! Avoid the ridiculous 'high priced spread' for your exotic, these guys rock it every time. Many thanks Alpine. Honest, reliable and competent.🥰
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wahsaihin
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I’ll always trust Mike to work on my Porsches, especially when it comes to track-related stuff. Not only is he a pro with the mechanical work, but he also has an intricate understanding of what it takes to fine-tune a car to perform better at the track based on the customer (driver) and their specific platform.
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simon lacey
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Sickest place ever
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yash singh profile picture
yash singh
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I recently had an oil change done at Alpine Auto Werks, and honestly, the experience was fantastic. At first, they missed the exact oil amount, so the level was a bit low. But when I returned the next day with a flat tire, they not only patched it for free, they also topped up the oil on the spot. They really went above and beyond. Plus, if you’ve got a European car, this is hands down the best place to get it serviced. These guys are amazing!
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Marco Fontes
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Big thank you to Alpine auto for doing some work on my 997, Great service, reliable work and respectable prices. Big shout out to Porsche tech Guguano Holladay who dealt with my concerns, explaining the process and then executing the task. Spent valuable time with me on future concerns I had and recommendations to explore. He’s very knowledgable on the 911’s. Alpine will definitely be my go to Porsche Indy and highly recommend for others. Thank you Barb…
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Robert L profile picture
Robert L
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Big thank you to Mike and the staff at Alpine. This is hands down the best shop to service your Porsche at. My entire experience was stellar and their knowledge and diagnosis is top notch!
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