1975 Porsche 3.0 RSR Tribute
Ex-Jim Busby/Vasek Polak Racing
Over $200,000 Invested
VIN # WP0AB0915ES122102
ENG#3380118 (Aluminum Case)
Less than 10 hours on current engine
White with Beverly Porsche Audi Livery
Signed by Jim Busby
Custom 915 5-speed Manual Transmission Clean and Clear California title
No Accidents.
Offered at $59,990
In 1975, Jim Busby and Vasek Polak purchased a factory 3.0 RSR to compete in the 1975 IMSA season. It did reasonably well starting and finishing 8 races and finishing in the top 10 at all of them. The car continued to be raced both professionally and with SCCA through the 1981 season with a top ten finish (in class) at the 12-hours of Sebring in 1981. The owner of this tribute RSR was always a big fan of Jim Busby, Vasek Polak, and the 3.0 RSR. So, when the chance arrived to build a vintage racer, he couldn’t resist.
The current owner is a semi-professional racer who has competed heavily in not only POC (Porsche Owner’s Club), but also Grand Am. In 2003, a fellow P.O.C member had a 1984 Porsche that was made to look like 964 Turbo with a 3.6 engine installed. He primarily used it for time trials. The current owner purchased it and for the next two years did some club racing with it.
In 2005, he decided to start his goal of building a vintage RSR style racecar. So, he enlisted the help of Kevin Roush with GAS Motorsport in Upland, CA. Outside of the original purchase of the car, this owner invested another $137,000 into developing an amazing and quick vintage racecar.
Here are some highlights of the mechanical components:
Full RSR coil over suspension
Charley bars
Original real 2.0L aluminum
911 S MFI System
MFI Fuel pump
46mm magnesium stacks
Mahle 2.9L pistons and cylinders
Early 911 distributor
Ollies prepared case/bored for 90mm cylinders
Shuffle pinned
2.7 Crank machined and polished
2.7 Carrillo rods
2.7 heads ported/polished and flame ringed
Late cam towers/chain housings with Carrera tensioners
Titanium valves
Carrera oil cooler
Elgine Billet Cams
Squirters for pistons
GT3 R oil pump
7:31 Ring and Pinion
Race gears 1,2,3,5
LSD 80%
Wevo gateshift
Dogteeth race gears
$15k spent building gearbox alone
Tilton Twin Disc clutch package
Custom flywheel
Tall 1st gear for rolling starts
Porsche 917/930 big brake system
Car weighs 2,150 lbs
After tuning and development, he decided to enlist the help of Vision Motorsports (one of the top independent Porsche specialists in Orange County). The owner of Vision, Dwain Dement, was previously one of the managers of Andial. He wanted to give the car the look of a period-correct RSR to match the mechanicals. He had Dwain built a tribute to the Jim Busby/Vasek Polak 1975 RSR. The execution came out so well that Dwain even got Jim Busby to sign the dash. The cost for the conversion came out to another $31,000.
All in all, this owner has invested over $200,000 building, developing, and testing this RSR and he has less than 10 hours of track time on it.
The car has competed in a few HSR, VARA, and SCCA events. One of the first times out, it won GT3 class and set the track record at Phoenix with the SCCA!
This vehicle is has a Cool suit bracket and mount.
We have receipts of all the recent work performed and are included with the sale.
If you have any questions, please do not hesitate to contact Paul at 714-335-4911 or
paul@autokennel.com
For tons of photos, go to:
www.AutoKennel.com
