Motorsports Monday: 1986 Porsche 930

It’s hard to fathom any Porsche 930 as “reasonably priced” these days, but after the $500,000 SLS AMG GT3 from earlier this 1986 Porsche 930 seems positively a cheap way to consider track time. What interests me about this car is something the seller mentions in the listing; this is an original Turbo, and still retains the original motor casing and transmission to prove it. Rob’s recent modified 1984 911 “Turbo” model and Nate’s odd M30 turbo M5 from yesterday prove that turbocharged motors popping up in unexpected packages isn’t particularly uncommon, but original 930s rarely turn up in race car form:

CLICK FOR DETAILS: 1986 Porsche 930 on eBay

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Tuner Tuesday: 2002 Porsche 911 Turbo

If yesterday’s Koni Challenge 997 was a little too extreme for your Porsche dreams, you don’t need to look far for another stunning deal. We’ve talked a lot about what an incredible performance package the 996 twin turbo still is; over a decade on, even box stock these are still cars that perform at near exotic levels. Despite that massive performance, they’re available for a relative song – we’ve even seem some higher mileage examples dipping into the $30,000 range. Today’s example has been turned up as many have, now capable of 600 horsepower ripping pavement through all four wheels. That means your trumped-up Beetle can embarrass most Ferraris, Lamborghinis and some small airplanes for only $50,000. It’s so fast, not only the pictures but even the dyno readout is blurry from speed:

CLICK FOR DETAILS: 2002 Porsche 911 Turbo on eBay

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Motorsports Monday: 1993 BMW 318i Dinan-Built Racecar – REVISIT

After failing to sell back in June when I originally wrote it up, the semi-mystery “Dinan-built” 318i racer is back up for sale. There is no more information offered this time around and the car is once again a reserve auction; I’d guess that the seller hasn’t changed their $28,000 expectation and this car will continue to be a hard sell – but it’s pretty cool to check out! What would you pay?

CLICK FOR DETAILS: 1993 BMW 318i Dinan Race Car on eBay

The below post originally appeared on our site June 30, 2014:

Obviously we write up a lot of cars at this site, and we see our fair share of cars from dealers with a real gap in information provided that we’d like to see. Often times, there seems to be no rhyme or reason to which cars get no description or why; they can be a 300SL Gullwing for multiple millions of dollars right to a first generation GTi. Despite the range of value, one thing unites these cars; there are enthusiasts who love to see them, and buyers who would really like to know more about the car. Today’s car is no exception; a 1993 BMW 318i, this would generally be a forgotten charm right now. The E36, while a great car in its own right, isn’t in favor the way the E30 is and consequently larger engined variants are plentiful, and more importantly cheap. So what is interesting about this economy car turned racer? Well, it’s a claimed Dinan built car, and for a time in the 1990s BMW handed Dinan the keys to build some pretty wild semi-factory backed racers – so they’re well versed. But the mystery isn’t solved there:

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2001 BMW M Coupe

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S54 M Coupes are quickly appreciating, as the top-performing clownshoe’s rarity and ability are realized. I’m certainly not immune to their unique draw, and an example like this is right up there with the E39 M5 as the first car built in the last 20 years that I would actually consider putting in my garage. Today’s is a beautiful example, looking positively sinister in black on black lightweight Fikses. It has a litany of effective and attractive (and reversible) modifications. The S52s may be a better value proposition, but one quick daydream about raging the redwoods in this 315hp shooting brake and the price starts seeming more reasonable.

Click for details: 2001 BMW M Coupe on eBay

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Motorsport Mondays: 1993 BMW 318i Dinan-built Racecar

Obviously we write up a lot of cars at this site, and we see our fair share of cars from dealers with a real gap in information provided that we’d like to see. Often times, there seems to be no rhyme or reason to which cars get no description or why; they can be a 300SL Gullwing for multiple millions of dollars right to a first generation GTi. Despite the range of value, one thing unites these cars; there are enthusiasts who love to see them, and buyers who would really like to know more about the car. Today’s car is no exception; a 1993 BMW 318i, this would generally be a forgotten charm right now. The E36, while a great car in its own right, isn’t in favor the way the E30 is and consequently larger engined variants are plentiful, and more importantly cheap. So what is interesting about this economy car turned racer? Well, it’s a claimed Dinan built car, and for a time in the 1990s BMW handed Dinan the keys to build some pretty wild semi-factory backed racers – so they’re well versed. But the mystery isn’t solved there:

CLICK FOR DETAILS: 1993 BMW 318i Dinan Race Car on eBay

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Motorsport Monday: 1986 Porsche 911 Carrera

Buying a used race car is always a bit of a mixed bag; if you build it yourself, you know what you’ve got and what you’ve done but it’s more expensive. Buy someone else’s project, though, and you can spend years trying to undo what they’ve “done”. But if you find just the right car to buy, you can get a serious performance bargain – top shelf quality at a house-brand price. Today’s 911 may just be this exact case; a staple of the racing community, long before “Miata” was the answer to every question automotive, if you wanted to go racing you bought a 911, such as this 1986 Carrera:

CLICK FOR DETAILS: 1986 Porsche 911 Carrera on eBay

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Tuner Tuesday: BMW Dinan ISR3

Steve Dinan is a wizard at building monster BMWs, and as such managed to make it into the inner-circle as a dealer-approved modifier of BMWs. This extends not only to the base models but also to the already specialized and quick M models. No one who has driven a M Roadster will accuse it of being a slow car, but Dinan took the S52 motor to another level by adding a supercharger and a host of engine and exhaust upgrades to match. But it didn’t just end there; Dinan revised the suspension as well to better suit the increased power and offer more adjustability to the owners of these specialized cars. One aspect that I think is particularly nice about Dinan’s creations is that they often retain the mostly-stock look that makes sleeper performance cars so special. Plop that performance into a M Roadster and you have a ton of top-down fun:

Year: 2000
Model: Dinan ISR3
Engine: 3.2 liter supercharged inline-6
Transmission: 5-speed manual
Mileage: 27,179 mi
Price: $50,000 Buy It Now

CLICK FOR DETAILS: 2000 BMW Dinan ISR3 on eBay

2000 BMW Z3 M Roadster. 3.2L I6 EFI Gasoline Engine.
Extremely Rare Stealth “SuperCar” – Dinan ISR3

400 Horsepower BMW M Roadster

Only 27,179 miles – Looks and drives like new! Washington State Emissions Test passed 11-13

One Owner – Great Condition – Supercharged – Intercooled – Enhanced Low Back pressure Exhaust – Enhanced Suspension & Much More… This is Monster Road Machine in an M Roadster body! Check out the Road & Track and Roundel articles on this car – Internet links below.

Only 6 of these Supercars were made and even fewer are still in existence. This Dinan ISR3 was the 4th BMW M Roadster converted (out of a total of only 6 ISR3 cars created by Dinan Engineering).

Extra Options Added beyond ISR3 Conversion:

Removable BMW Hard Top with rear glass window w/electric defroster/ rolling hard top storage stand

BMW Two-Tone Electric Leather Seats
Dinan Carpeted Mats

Dinan Boost Gauge: Shows Supercharger Overpressure

Escort 9500 Stealth Built-In Front/Rear Radar/Laser Detectors With Laser Jamming

BMW M Roadster standard features:

In-Line 3.2 Liter Six Cylinder Engine
5-Speed Manual Transmission
Blue Soft-Top Excellent Condition
AM/FM Stereo/CD Player
Air-Conditioned
Heated Blue Leather Two-Tone Seats
Cruise Control
Tonneo cover
Wind Screen

Each Dinan ISR3 conversion began with a new 2000 BMW M Roadster, which was in-turn superbly modified by Dinan in the following ways:

Engine: intercooled supercharged DOHC 24-valve 6-in-line straight six; aluminum block and head, Dinan/Siemens engine-control system with port fuel injection; Vortech helical-cut-gear-driven supercharger for quiet reliability; 10 pounds boost into 10.5:1 compression; 50-state emissions legal. Two different sized compressor bypass valves, one before and one after the intercooler to eliminate low-speed stumble and surging typical
with “high boost” aftermarket supercharger systems. Thermostatically controlled engine oil cooler, enhanced fuel delivery system with larger high-flow fuel injectors. Air filter located outside engine compartment to insure exposure to cool, dense air. Integrated bumper ducting provides ram air effect as road speed increases.

Displacement: 192 cu in, 3152cc
Power (SAE net): 396 bhp @ 6500 rpm
Torque (SAE net): 326 lb-ft @ 5500 rpm

High Flow Throttle Body: Internal diameter of throttle body has been increased for improved airflow. Throttle response is also faster as a result of the modified shape.

High-Flow Air Flow Meter: A larger-diameter air-flow meter is included in order to improve Intake airflow efficiency. The design incorporates a unique “labyrinth” for improved air-flow-meter-voltage stability as well as shielding it from cylinder pulses for a smooth idle and improved peak horsepower.

High Flow Intake Manifold: Polished and ported with larger-diameter intake runners for maximum intake efficiency and resulting power gains.

Engine Management System: The Siemens engine-management system has been programmed for maximum power gains, drive ability, and emissions compliance. System maintains all “On Board Diagnostic”

(OBD II) functions and ignition timing and air/fuel mixtures are optimal throughout the engine’s operating range. VANOS (variable cam timing system) has been reprogrammed for maximum power gains throughout the engine’s operating range.

Free Flow Exhaust: Stainless steel, free-flow mufflers insure that backpressure is kept to a minimum, without creating an unacceptable exhaust note.

Clutch: Stock “dual mass” flywheel and clutch assembly replaced with Dinan Stage 2 Clutch Assembly. Lightweight aluminum flywheel reduces clutch weight by nearly 15 Ibs. or 39%. Clutch clamp pressure increased by 20%.

Transmission: 5-speed manual

3.38:1 Limited-Slip Differential: Final-drive gearing has been lowered from the stock 3.23:1 ratio to compensate for the increased outer diameter of 285/40-17 tires in the rear.

Performance Springs: Increased spring rates and a modestly lower ride height provide greater control and traction in turns.

Moni/Dinan Externally Adjustable Struts and Shocks: Matched with Dinan springs for maximum control. Features custom digressive compression valving for more low-speed shock shaft velocity control, providing greater restriction of camber and toe-angle changes. Front struts are externally adjustable for personalized control of ride quality and handling characteristics

Anti-roll Bars: 22mm front and rear adjustable anti roll bars.

Front Camber Plates: Relocate strut pick-up points for two degrees negative camber in the front, greatly improving turn-in.

Camber Adjustable Rear Subframe: Provides adjustment of camber angles at the rear of the car.

Front Strut Tower Brace: Reduces flex at the shock towers for sharper handling.

Wheels and Tires:

Front: 1 7×8.5″ Dinan Three-piece modular wheels, 255/40-17 Michelin ZR Pilot Sport tires.

Rear: 1 7×9.5″ Dinan Three-piece modular wheels, 285/40-17 Michelin ZR Pilot Sport tires.

Brakes: Brake pads replaced with carbon/metallic pads.
Wheelbase: 96.8 in Length: 158.5 in Curb weight: 3103 lbs.

C/D TEST RESULTS (From Car & Driver article – link below):

Zero to 60 mph: 4.7 sec
Zero to 100 mph: 12.0 sec
Street start, 5-60 mph: 4.9 sec
Standing 1/4-mile: 13.4 sec @ 106 mph
Top speed (redline limited): 159 mph
Braking, 70-0 mph: 176 ft.
Roadholding: 300-ft-dia skidpad: 0.91 g
C/D-observed fuel economy: 10 mpg

CLICK HERE to See Barry Winfield’s Road & Track’s April 2001 article on the ISR3

CLICK HERE to See Roundel’s article on the ISR3

There aren’t many of these little rockets floating around – the original article from 2001 claims that only 50 would be built. With 400 hp on tap, they’re a potent package, too. Of course, that potency cost, and cost dearly; new out the door, these Z M Roadsters boasted price tags in excess of $80,000 if you ticked all the right boxes. Sound like a lot? It was, because shortly after the launch you could get into a 315 hp S54-motored Z M for around $45,000. The question then becomes one of exclusivity; do you want what no one else has? Perhaps, and if that’s the case then this car is a good candidate for you.

Of course, it sure would be nice if the seller provided better pictures and some more information, specifically on the claim that the car is only one of 6 (though, I’m guessing perhaps in that color?). Though it has low miles, no mechanical history is provided of the car. Then there’s the asking price – $50,000, which by my maths will buy you no less than three normal M Roadsters with change left over to spare. Much like last week’s Ruf 3400 I think the asking price is far too high even considering the increase in performance. While I have no doubt the car is quick and rare, I just could never justify that sort of premium for this particular car.

-Carter

Tuner Tuesday: 2007 Porsche Boxster S Ruf 3400

Without a doubt, Ruf is one of the most popular tuners in the world, but enthusiasts draw a strong line in the sand over what can and should be considered a Ruf automobile. For the most part, their enthusiasm generally falls off once the car in question does not carry an official Ruf vin plate. But are there extenuating circumstances that allow some cars to still be considered from the maker? Maybe you can help decide on today’s 2007 Boxster S, a car sporting $43,000 worth of Ruf modifications and available for sale on Ebay:

Year: 2007
Model: Boxster S
Engine: 3.4 liter supercharged flat-6
Transmission: 6-speed manual
Mileage: 24,859 mi
Price: Reserve Auction

CLICK FOR DETAILS: 2007 Porsche Boxster S Ruf 3400 on eBay

Ten years after the Boxster roadster debuted, it continues on as Porsche’s least expensive model, and remains one of the most thrilling cars on the road for the dollar.Two engines are offered, with a horizontally opposed six-cylinder 2.7L engine appearing on the base Boxster and a 3.4L version of the same engine found in the Boxster S. The smaller engine produces 245 horsepower, while the S has 295 horsepower on hand. Both powerplants use VarioCam technology for 2007 to vary both the valve timing and the valve lift on the intake camshaft. The result is increased power and improved fuel efficiency.The base Boxster has a five-speed manual transmission with a manual six-speed optional. The S gets the six-speed standard, and both models can opt for a five-speed Tiptronic transmission with gear selectors mounted behind the steering wheel.A mid-engined design gives the car a low polar moment of inertia, which enables the Boxster to navigate turns with a nimbleness that has to be experienced to be believed. The extra oomph of the S is helpful when putting the power down coming out of the corner, but the basic Boxster is also a highly entertaining and exceptionally capable vehicle.The Boxster is very well equipped, with heated power mirrors, power leather seats, power windows and locks, an alarm system, and automatic climate control. The Boxster S adds heated windshield wiper fluid, aluminum interior trim, and an anti-theft system. Mote importantly, the S has bigger brakes (the same as are found on the 911), dual exhaust, larger wheels, a tuned suspension, and performance tires to help maximize the 3.4L’s ample power.The power cloth top stows quickly, and can be lowered while driving up to 30 mph. Unusual options on the Boxster include adaptive sport seats that adjust the amount of bolster support, an automatic rear spoiler, ceramic brakes, and a fire extinguisher. A host of wheels and color schemes are available, as are more typical luxury items, such as heated seats, enhanced audio systems, xenon headlights, and a navigation system.

2007 Boxster S/Ruf 3400K Ruf Automobile GmbH, located in Pfaffenhausen Germany, is the largest and most respected manufacturer of enhancements for Porsche cars and is recognized as an automobile manufacturer by the German government. Ruf cars are noted for their performance coupled with Porsche factory levels of refinement and reliability. Ruf cars can be purchased as either a Ruf built car, and carry a Ruf VIN or a Porsche can be modified by Ruf in which case it would carry a Porsche VIN. Due to California smog and licensing issues, this 2007 Boxster S/Ruf carries a Porsche VIN. The car was purchased new in August 2007 and shipped to Ruf USA (then in Dallas, Texas) for installation of the Ruf 3400K drivetrain, the Ruf package for the 987 Porsche Cayman/ Boxsters. The modifications include the addition of a supercharger, reduced compression ratio, larger oil cooler and larger coolant radiators. Ruf lists the ouput of the 3400K as 400HP however, a few Ruf employees have indicated that the real output is more like 440 HP. This car sure feels like it! This car has a limited slip differential, Ruf instrumentation, steering wheel, springs, short shifter and other details. The total cost of the Ruf enhancements was $43K. In Porsche’s product offering, the Turbos provide the best straight line performance and the mid engined Boxster/Cayman, the best handling. The Ruf modified Boxster combines the best of both, Turbo levels of straight line performance with Boxster/Cayman handling. Finished in silver with black leather sport seats, this very rare car is in mint condition and was owned from new by a 64 year old Porsche enthusiast. Complete service records are provided. Please send message through ebay for additional pictures and information. Non Smoker, Clean title, One Owner Clean Carfax, No Track Days, Two Keys, Car Cover, Owners Manual, Original Window Sticker, photos taken during upgrades and Ruf invoice provided.

With a healthy bump in power to near-Turbo levels, this supercharged convertible sure should have the go to match the name; but while the car sports a Ruf badge and some of the goodies, a few important details are missing. For example, the 3400K ran a unique and much more aggressive from bumper which mimics it’s bigger brother GT3’s nose. This carries to the back where the Ruf redesigned rear bumper cover is also missing. Critical for me, though, are those missing Ruf alloys, one of the best traits of the breed. They’ve been replaced by some high quality Fikses – which I’m okay with – that are painted black – which I’m not okay with. But, as I’m not likely to buy this car that’s perhaps a bit non-sequitur.

Despite these missing details, the condition of the cars and the lower miles are both as impressive as the performance of these cars. Pricing on a normal Boxster S of this vintage would generally be high 20s to low 30s, and the opening bid on this car is $45,000. Unsurprisingly it’s failed to get much attention at that price point though it’s likely a good deal when you consider the original pricing on the 3400K was north of $100,000. Still, without the Ruf vin and with some key Ruf details missing, it’s just a stealthy and expensive Boxster to me.

-Carter