The “slantnose” 911, modeled after the iconic 935 race cars of the 1970’s and 80’s, are one of the more controversial models to come out of Stuttgart. Available through Porsche’s Special Order Program or through a number of aftermarket shops and dealerships, slantnose conversions received unique front and modified rear fenders along with a few other bits and pieces to distinguish themselves from the standard 930. Although they commanded premium prices when new, today they have carved out a niche fan club, with many 911s being converted back to the standard body style as the market continues to favor originality and classic 911 body lines.
But this article isn’t about the history of the slantnose, or how it is doing in today’s market. This is about one particularly bad slantnose. One that just so happens to make 450whp on 93oct pump gas. One that just so happens to be daily driven. It also happens to be able to run down a chipped 991 911 Turbo. Do we have your attention now?
Vision Motorsports located in sunny Laguna Hills, California gets credit for the heart of this monster. 12k miles ago the entire motor was yanked and stripped down in preparation of making the staggering numbers we already mentioned. Wanting nothing but the best, Mahle 3.4l pistons and jugs were spec’d and sourced, yielding final compression numbers of 7.5:1 which is low by today’s standards but with dated cylinder head designs it provides a large safety margin in terms of detonation resistance. ARP main and head studs keep these fancy parts from ripping themselves apart under sustained high cylinder pressures.
To make the most of the new power band and allow the heads to flow at higher RPM 964 race cams punch open the valves. The head received a refresh just 3k miles ago while the bottom end was deemed perfectly stout at that time. To orchestrate all this power, Electromotive was tapped for their TECgt ECU which allows fully sequential ignition and fuel injection. Of course it also features a laundry list of additional features, like electronic boost control, launch control, CAN outputs to dataloggers and the like. It also supports multiple fuels meaning if you are lucky to live in an E85 supplied area more power is just a bit of corn juice and a retune away.
Of course, you can’t make enough power to run down Porsche’s brand new supercar without having a way to control it. To that end 3pc Kinesis wheels were rebuilt and painted bronze, as the current owner puts it “to go for the old 935 Johnny player special look.” They are shod in Toyo R888 225’s in front and 335’s rear. Yes, 335s. In other words, if you were to line up the wheels from this car you would be looking at almost 4 FEET of R compound rubber. 4 feet! That certainly has something to do with that 991-decimating speed this 930 is capable of. The owner does state that one wheel, despite a relatively recent rebuild, will need attention as it does slowly leak down.
The current owner opens the for sale ad by stating this Turbo is “Not for the weak hearted,” and though we would tend to agree, the interior has received a bit of treatment to update the original look and feel, if not make it entirely civil. A set of our own Rennline aluminum pedals and floorboards replace the factory parts, further cutting curb weight and bringing some style to the footwell. A 4pt. cage and Recaro Pole Positions seats make the interior feel as fast as it is while giving the driver and any other occupants an added degree of safety. Besides those and the addition of some gauges to keep tabs on the powerplant, the interior remains mostly stock ensuring the car retains some level of street demeanor.
So this just might be the ultimate slantnose. The car is currently daily-driven, and thanks to the meticulous build quality of the engine, drivetrain and body, we can’t think of anything we would rather do with it. Well, besides driving it to the track and back! Incredibly, despite the day-to-day grind and the car being built on a 1986 930 chassis, it retains a clean Carfax bill of health with a zero record of accidents. So is “ultimate” too strong a term for this car? It may lack the creature comforts of today’s Turbo, but being able to destroy just about anything on the highway, during your morning commute, in quintessential 80’s style, with modern reliability, justifies this title in our eyes.