Yahoo Autos Maturo Stradale another sweet Lancia Delta restomod
On the one hand, what we have here is (yet) another vintage World Rally Championship Lancia restomod. On the other hand, we just haven't (yet) got tired of vintage WRC Lancia restomods. This one hails from The Netherlands, quite a bit further north than the Swiss and Italian takes we've seen so far. A company called Maturo Competition Cars in Veghel, which specializes in prepping old Delta Integrales for rallying, decided to work up a Delta HF Integrale 16v in the manner of the Group A cars that won WRC Manufacturer's Championships in 1990 and 1991. The trio of men behind it decided they wanted to stay close to the feel of the original in order to provide a similar driving experience — with more horsepower, naturally — built with far more reliable and luxurious components.
The hatchback now known as the Maturo Stradale starts with a Delta HF Integrale in serviceable condition. The chassis is stripped, then sandblasted. Welders install a full custom roll cage and add spot welds in 250 places, increasing rigidity. These much stronger bones are then primered and repainted for corrosion resistance.
While all that's being done, the 2.0-liter four-cylinder goes in for an even greater overhaul. The Group A Lancias made about 200 horsepower. Upgrades bolt on a larger carbon airbox, rebuilt Garrett turbo, larger intercooler, upgraded injectors and fuel system, new wiring harness and reprogrammed motorsports ECU. New internals include forged rods and pistons, and lighter valves. There's a thicker timing belt, and the balance shafts are gone. Peak boost climbs from 1.2 bar to 1.8 bar, upping peak power to about 355 hp. The company says the engine "Will deliver a completely reliable 380 hp or more and more than 550 Nm [405 lb-ft] of torque.”
The original five-speed gearbox is rebuilt with stronger gears, and can be further revised with straight-cut gears in a dogleg pattern for power shifting. The original Deltas went without a locking front diff, making do with a Ferguson viscous center diff and a Torsen rear differential. Maturo puts in a new viscous center differential and mechanical locking diffs on both axles, meshed with driveshafts formed from an alloy created for Formula 1 cars that can endure angles of up to 40 degrees without deformation.
