15K-MIle 4.0L 2001 Porsche C4 Racecar

Up for auction is this well-built 2001 Porsche 911 C4 track car. The car was specifically built to highlight the engineering and fabrication capabilities of a respected Porsche race shop in Chicago. It was designed for and is capable of serious competition but has only been used for recreational track use.  The shop was trying to demonstrate the ease of converting an older water cooled streetcar to an exciting track car.  A crucial part of that goal was to maintain a reliable vehicle that was easy to service and simple to evaluate diagnostically.  All electronic and mechanical systems function as they do on a street car with the exception of the HVAC system, which is standard for a track vehicle.

The car features a hand built and heavily modified m96 2003 S 3.6l engine that was enlarged to 4.0 Liter.  The motor was dyno tuned to output approximately 425 hp and built to extremely precise tolerance levels.  From engine through brakes and suspension, every upgrade possible was addressed to produce a fast, fun, safe and reliable car.  Lots more detail below.



Below is an extensive list of work that was performed on this car:

  • Rebuilt m96 3.6l engine from a 2003 Porsche Carrera s enlarged with ln nickies to 4.0l
  • 6 speed manual trans hardened by gbox with second gear pop-out fixed. (trans is from the same 03 Carrera s as the engine)
  • Custom coated je pistons and rings
  • Cp rods with coated rod bearings
  • Coated main bearings
  • ARP head studs with crank holder and rod bolts
  • Lightened and balanced crankshaft with new thrust bearings
  • Matched lightweight flywheel and clutch master with a 6 puck clutch
  • Custom ln head-gasket set
  • Head polished and ported with new intake and exhaust valves, springs, stem seals, and valve followers
  • Schrick high-lift cams with new intake cam adjusters
  • All bolts, seals, chains, guides, water pump, alternator, starter are new
  • All electronic engine sensors have been replaced
  • Under-drive pulley
  • Power steering delete pully / ac delete pully
  • Heater core bypass
  • Ipd plenum
  • GT3 throttle body
  • Porsche ms aos
  • Custom headers and titanium exhaust tips with no mufflers
  • Third water radiator and enlarged capacity main radiators
  • Cupcar nose added to enclose additional radiators
  • Radiator fans retained with manual control inside the car
  • Trans cooler and pump added with front radiator with in
  • Internal on/off switch
  • Electric power steering pump from a GT3 cupcar
  • Adjustable camber plates
  • Bilstein coil-over suspension
  • H&R adjustable sway bars
  • Adjustable tow links
  • Sparco race seats and 5-point harnesses and half roll cage
  • Quick release Momo steering wheel
  • Cool suit system
  • Accusump manual control for startup on main internal switches
  • Short shifter with new upgraded cables
  • Track pedals
  • Lightweight red oz wheels
  • Brembo 6 piston calipers front and brembo 4 piston calipers rear with matching
  • Brembo rotors
  • Custom softtronic tune with cable
  • Carbon rear spoiler on fiber rear deck lid
  • K&N intake with carbon air shield


The car was originally built for, and by, the owner of Rennology motor sport inc. and his team.  He has since retired but is always willing and excited to talk about this amazing vehicle.  This was his personal car and has many painstaking hands-on hours of work on the car.

Auction Results

  • Winning Bid: $28,250
  • Auction End: April 19, 2019, 3:43 p.m.
  • Number of Bids: 6
viewed 1,385 times saved 16 times

Comments (13)

  • 22dawgs 6 days, 6 hoursago

    Bid in the amount of $28,250

  • RFK 6 days, 8 hoursago

    Bid in the amount of $28,000

  • Ambassador-Auto (seller) 6 days, 9 hoursago

    @GregGour I wish I could tell you, but we are not that far away.

  • GregGour 6 days, 10 hoursago

    There is no way $27,500 will take this car, I wonder what the magic number is.

  • vettenasty 1 weekago

    I remember getting blown away by this car at the autobahn CC a couple of summers ago! Super fast and makes an awesome noise - even through the helmet as it went by. You'd need a lot more money and a cupcar to catch it, looks like a bargain right now.

  • Aiello11 1 week, 1 dayago

    @burnrubr yea gt3 with a 4.0 on crack. It’s def an crazy expensive build

  • burnrubr 1 week, 1 dayago

    this is like home made GT3 bid on folks!

  • trackwheels 1 week, 3 daysago

    Bid in the amount of $27,500

  • Redline6789 1 week, 4 daysago

    Bid in the amount of $25,500

  • burnrubr 1 week, 4 daysago

    Bid in the amount of $25,000

  • burnrubr 1 week, 4 daysago

    this will give my Cup Car some rest

  • drapperjas 1 week, 4 daysago

    Bid in the amount of $10,000

  • PCARMARKET 1 week, 6 daysago

    Videos will be up shortly. Don’t miss this one!!

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15K-MIle 4.0L 2001 Porsche C4 Racecar
Final bid: $28,250 This auction has ended.