1975 Porsche 911S Coupe IROC Tribute 3.0L Twin-Plug
Vehicle Details
- Year: 1975
- Make: Porsche
- Model: 911S
- VIN: 9115201982
- Mileage Shown: 9,943mi (TMU)
- Transmission: Manual
- Title Status: Clean
- Color: Green
- Seller Type: Private Party
- Location: Cedar Rapids, IA 52411
- Lot #: V-0048977
This 1975 Porsche 911S Coupe has been reimagined as a tribute to the legendary 911 Carrera RSR race cars from the early International Race of Champions (IROC) series. Finished in green, it features IROC-style bodywork, flared fenders, a custom lightweight interior, 17” RSR-style wheels, and various race-focused upgrades. The flat-six engine has been enlarged to 3.0 liters, equipped with 46 PMO carburetors and twin-plug ignition, and mated to a 915 5-speed manual transmission, along with several additional mechanical enhancements. This street-legal homage is now available for auction by its seller out of Iowa.
The bodywork was modified between June 2009 and April 2010 with wide fenders, IROC-style bumpers, and an IROC-style rear wing. As part of the restoration, this Coupe was refinished in the current shade of green by Darrin Wood's Body Shop in Toney, Alabama, and preserved by full exterior paint protection film. It rides on 17” deep-dish Fuchs-style wheels with newer rear tires that have been driven for approximately 400 miles. Detailed images are provided in the gallery.
The black interior has been prepared for racing with a pair of leather-upholstered Recaro bucket seats, a MOMO Prototipo quick-release steering wheel, a roll cage, Rennline footrests, and a tilted tachometer gauge. Additionally, the headliner has been reupholstered, and Dynamat heat and sound insulation has been installed beneath the carpeting.
The flat-six engine has been enlarged to a 3.0-liter displacement and equipped with 46 PMO carburetors and twin-plug ignition. Power is delivered to the rear wheels through a 915 5-speed manual transmission. Additional enhancements include an RSR-spec oil cooling system, front and rear IROC race suspension, M&K 911R mufflers, new fuel lines, and a race-grade Fuel Safe fuel cell. The seller notes an oil change was completed in August 2023, and the car has been driven approximately 300 miles since.
This sale will include a clean title and some documentation.
The seller would like you to know: "I've driven the car approximately 500 miles during my ownership of just over a year. Joe's Garage in Milwaukee, Wisconsin, thoroughly inspected the vehicle and addressed everything that required attention. The car is in excellent condition and ready to drive, needing nothing."
Comments (14)
i'm with Helix10. need info on suspension, brakes trans. etc. dyno please
The rears are steel , front fiber glass
Lime green , same color as the Iroc car
So are the rear flairs steel or fiberglass ?
@ThePorscheDoc
The bringatrailer suction listing states fiberglass fenders and bumpers. Presuming fenders means the front fenders. Typical
for a track car.
The “race” seats were removed, these are
vintage repro seats .
Bid in the amount of $5,911
Lime Green was an original IROC color. So that's a cool characteristic of this tribute.
https://www.rennbow.org/articles/the-colors-of-iroc
Appears to be Lime Green
https://www.rennbow.org/porsche-colors/LimeGreen#photoGalleryStart
Steel or fiberglass, fender flares?
@Helix10 The fuel cell was purches new and put in new 8/15/23 , With a few other repairs / fixes / by joes Garage in Milwaukee. Ill see if i can get the other info for you
@SILOmike Not sure ill see if i can locate it
@Al_Cantara No i did not buy form the seller on Bat , my Broker found it for me. Selling due to 45 in my collection , i need to down size my fleet . I work a lot and don’t have time to drive my cars.
@ChadEggs
Why are you selling after so little time and mileage?
Did you buy from the previous seller?
https://bringatrailer.com/listing/1975-porsche-911-23/
Thanks. Looks nice at first glance.
Do you have undercarriage photos? Suspension details (t-bar size, monoballs, swaybar sizes etc)? Is the 915 an open diff or LSD (if LSD OEM or other). Age of fuel cell and bladder? Looks like Wilwood brakes up front how about the rear? Presents as a very nice build just missing details. Thank you.
What is that shade of green?