This is a slideshow summary with a few video shorts.
My main goal was a mk1 Scirocco with enough traction to seamlessly deliver a lot of power. I also wanted the car to look normal inside and out, be easily maintained with standard VAG parts, and be bulletproof reliable.
For whatever reason(s), a lot of these AWD VW conversions are either never completed, or they stay in a rough state. In order to avoid those types of outcomes, I carefully considered what approaches would yield a fully completed car in a reasonable timeframe and within an acceptable budget. It was still a huge undertaking: I spent most of 2 years in my garage and the project cost $13000 including both donors, specialized tools, supplies, along with tons of help from friends.
I grafted into the Scirocco's shell an entire AWD Audi TT floor-pan along with the firewall and front frame rails. The front end is a removable "veneer" and it discreetly leaves full airflow to the radiator and intercoolers. I installed the 225 1.8t, AWD running gear, ABS and ESP hardware, pared-down TT electrical system, with carpet and seats also from the Audi. I scratch-built the dash and center console around the TT's instrument cluster and the center tunnel.
The car has a Forge 008 diverter valve and an APR stage 1 tune on 100 Octane, supposedly good for 277hp. Initial weight was 2623 lbs and I've since whittled that down to 2568. I wish it were another 300 pounds lighter, and the rocker panels are bulkier than I'd like.
At 11:10 is about one second of full boost in 5th at 60mph.
I posted a driving video with a "spirited" bit here: • AWD mk1 Scirocco #32
0:00 Introduction
0:33 Preparing the Donors
0:58 Metal Work
3:06 Body and Finish Work
5:03 Building the Dash and Center Console
5:31 Building the Interior
5:50 Installing the Glass
6:03 Installing the Interior
6:31 Electrical System
6:45 Preparing the Running Gear
7:50 Final Assembly
8:58 Exhaust
9:08 Initial Testing
11:21 Conclusion