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Will Roegge makes 4K art of Jeff Zwart's 911 build and run up Pikes Peak

Will Roegge has turned his camera on Jeff Zwart and provided another gem, this time documenting Zwart's run up Pikes Peak and BBI Autosport. Bertim Besha dropped out of high school, then worked his way up to founding his own shop, BBI, that gathers a crew of tuners who are just as fastidious about their work as the customers are about their cars.
They prepped the 991-series Porsche 911 GT3 Cup Turbo, the product of combining a 911 GT2 that was the most powerful car Zwart drove up the mountain with a GT3 Cup that Zwart thought had the best handling. Two TiAL turbos and a lot of fettling make for a 3.8-liter flat-six with 700 horsepower, 700 pound-feet of torque and a 7,800-rpm redline. Zwart drove it to a heartbreaking second place this year, finishing less than 1.2 seconds behind the Time Attack 1 class winner when his car suffered its first mechanical issue of the week.
The first video below covers Besha, BBI and the build, the second is Zwart's run. As if the visuals weren't enough, sit back and enjoy the shrieking of the "Hill Climb Special," which is what the constellation Sirius would sound like if it could bark.

Porsche testing four-cylinder Boxster at the N?rburgring

Porsche recently introduced a four-cylinder version of the new Macan for markets outside of North America, carrying Zuffenhausen's first four-pot since the 968 ended its production run the better part of two decades ago. But you can bet the compact crossover won't be the only Porsche to get the four banger before all's said and done. These spy shots, we're told, are evidence of just that.
Spotted undergoing testing at the Nürburgring (where else), this modified Boxster, our spy photographers tell us, sounds more like a four-cylinder engine than the flat six that's powered (in displacements ranging from 2.5 liters to 3.4) every version of the little roadster since its introduction in 1996, the year after the last four-cylinder Porsche ended production.
The test mule is also wearing modified wheel arches and aerodynamic aids under the bumpers, front and rear. Just what they're doing there we're not sure, but we'll probably find out sooner or later.

Porsche announces plan to replace 911 GT3 engines

About a month back, we reported that Porsche was suspending delivery of its 911 GT3 due to reported incidents of the engine bursting into flames. A few days later, Porsche told owners of the new track-ready models not to drive their cars and had their local dealers pick up the cars in question. Just a couple of days ago, we reported that Porsche was working on a fix, and now we have the official details.
Following an internal investigation prompted by two such incidents, Porsche has confirmed that is has identified the problem as resulting "from a loosened screw joint on the connecting rod." The loose connecting rod, Porsche found, damaged the crankcase, which in turn resulted in oil leaking and then - in at least two cases - igniting.
Our source is unaware of Porsche being contacted by GT3 owners concerned about the impact of a replacement engine on their car's collectibility or resale value.