MarketPlace: Backdated 1975 Porsche 911S Coupe 3.5L Twin-Plug by Rasant
Vehicle Details
- Year: 1975
- Make: Porsche
- Model: 911S
- VIN: 9115200733
- Mileage Shown: 0mi (TMU)
- Transmission: Manual
- Title Status: Clean
- Color: Red
- Seller Type: Private Party
- Location: Tucson, AZ 85716
- Country: United States of America
- Lot #: V-0057691-MP
This 1975 Porsche 911S Coupe was built as a custom backdate by Rasant Products of Long Beach, California. It features a custom 3.5-liter flat-six engine with twin-plug heads, electronic fuel injection, a Rasant intake system, tubular headers, and a dual-exit M&K exhaust. Power is sent to the rear wheels through a rebuilt 5-speed Type 915 manual transaxle with a Wavetrac limited-slip differential. The car also features RS-style rear fender flares, fiberglass bumpers, 9Eleven headlights, custom Fuchs-style wheels, and a MoTeC digital dashboard, a StopTech front big brake kit, Bilstein shocks, Turbo tie rods, 22mm/29mm torsion bars, and a custom front strut brace. Sold on PCARMARKET in 2023, it was purchased by the seller the following year and refreshed with new Recaro-style bucket seats, houndstooth cloth upholstery, and custom 15” Fuchs-style wheels. This 3.5-powered 911S backdate is now being offered for auction out of Arizona.
The car was factory-finished in Light Yellow (117) and had been modified with steel RS-style rear fender flares before it was acquired by Rasant in 2014. It was subsequently fitted with Dansk steel front fender flares, Getty Design fiberglass bumpers, a sunroof delete, and a backdated hood from a 1970 Porsche 911 before being refinished in red. The exterior is decorated with white Porsche script side stripes, bright window trim and door handles, 9Eleven headlights, a driver’s side mirror, hood straps, billet-aluminum 911R-style decklid hinges, and amber rear corner lights. Custom-made 15” Fuchs wheels were installed under current ownership, measuring 8” wide in front and 9” wide at the rear. The Avon tires are dated from 2019 and have at least 3/4 tread depth per the seller. The car’s paint is said to be in very good overall condition, apart from some shade variations around the exterior. Detailed images are provided in the gallery.
The cabin was redone under current ownership with new door panels and Recaro-style bucket seats accented by houndstooth cloth upholstery. It was also refurbished with a new headliner, sun visors, and charcoal square weave carpeting. Accessories include a leather-wrapped four-spoke steering wheel, power windows, Rasant Products aluminum floorboards, a black anodized shift knob, aluminum dashboard trim, and a customizable MoTeC digital dashboard display. A bolt-in roll bar is included in the sale.
Power comes from a custom-built 3.5-liter flat-six based on an aluminum 3.0-liter case from a RoW-spec 1978 Porsche 911SC. It features twin coil-on-plug ignition, CP high-compression pistons, 100mm Mahle cylinders, Elgin high-lift cams, high-rate valve springs, and a Rasant Intake System with interchangeable trumpets and a GT3 plenum. The engine also includes a 964 oil pump, billet valve covers, MoTeC M130 engine management, electronic fuel injection, a front-mount oil cooler, European race headers, and a dual exit M&K muffler. A claimed output of over 300 HP is sent to the rear wheels through a magnesium-case Type 915 5-speed manual transaxle featuring a billet side plate, one-piece bearing retainer, a Wavetrac limited-slip differential, and a Sachs lightweight pressure plate and clutch assembly. A Stoptech big brake kit has been installed, the strut towers have been reinforced, and the suspension has been modified with Bilstein Sport dampers, 22mm/29mm torsion bars, and Turbo tie rods.
This sale will include a removable bolt-in roll bar and a clean title.
The seller would like you to know: “This car has been listed many times in the last three years, but never with the new Autobahn interior or the custom-built 8- and 9-inch Fuchs wheels. It received awards at the Petersen Museum and People’s Choice the last time it was shown was at a Porsche Club of America event. I have no books and records, only what we found over the past three years on the Internet.”
Comments (60)
So, did Johnbugg buy this car??
Help can not find fuses location , can not get headlights to work ? Thanks , John
Offer in the amount of $102,000
Offer in the amount of $100,000
@moezilla... if I knew the reserve was this high, I would not of wasted my time bidding...
@Dwjrfish I wish:) - although I would spend quite a bit in changes
Enjoy!
Bid in the amount of $93,000
Bid in the amount of $91,000
Bid in the amount of $90,000
Bid in the amount of $88,000
Bid in the amount of $87,000
Bid in the amount of $86,000
Bid in the amount of $85,000
Bid in the amount of $84,000
Bid in the amount of $83,000
Bid in the amount of $82,000
Bid in the amount of $81,000
Bid in the amount of $80,000
Bid in the amount of $78,000
Bid in the amount of $77,000
Bid in the amount of $76,000
Bid in the amount of $75,000
Bid in the amount of $70,000
Bid in the amount of $69,000
Bid in the amount of $68,000
Bid in the amount of $67,000
Bid in the amount of $66,000
Bid in the amount of $65,000
Bid in the amount of $64,000
Bid in the amount of $63,000
Bid in the amount of $62,000
Bid in the amount of $61,000
After driving this car this last Sunday around Scottsdale and the freeways in city roads in 93° temperature I can tell you if she is sorted out and ready to drive anywhere. When we got her home, she does not drip a single drop of oil underneath.
Bid in the amount of $60,500
Are the bucket seats and swiss cheese looking rear grill from the last time this was on PCM available?
Bid in the amount of $60,000
WReiter
Never received any form of message from you
@Chuckanatr hey I watched the video too.
Message sent.
With a moniker like "old school" please forgive me for thinking that those that love the analog experice of cars of this era - might prefer analog gages and dash - otherwise CLASS Build!!!
Additional content has been added to the gallery for this listing.
Johnbugg
I did not get any voice message that I’m aware of. Not always able to get information But I did post a tube of a paint gauge check and examination of paint. it is very hard to see the difference in this red but I believe hard to. So redoing the roof by my guys you would never know. But yes, you will know because red is red. But overall, the paint gauge shows it is very thin and it is ceramic coated so very shiny. As of this posting the video has two views.
https://youtu.be/cb7YLHl1FhE?si=zxll6QVzuy6aX1SP
Additional content has been added to the gallery for this listing.
I do not think pics or video would show your description of paint shade variations , have left you a voice mail , Thank you it is a cool car !
Paint Gauge test
https://youtu.be/cb7YLHl1FhE?si=xD7cln_9nRSnvCgK
Johnbugg
I do you have a paint gauge video and the paint is in very nice. No, I submitted it to P Car, but they have not posted. I will find out if I can do it.
funoldcars
I do have the bolt in roll bar but do not have the other wheels
Paint variations?does it need a respray also any chips or nicks ? Thanks
Do you still have the 1552 Wheels and the bolt in roll bar shown in previous auctions ?
If having the factory gauges is important to a prospective buyer, they should just factor that in to purchase price. 7-10k??
Bid in the amount of $52,000
Every time this car comes up on the market, they howl from the crowd regarding the digital dash is resounding. You would have thought that one of the owners woukd have bitten the bullet and swapped it back to traditional gauges (arguably no small feat) but needed for this one to bring the money IMHO...
I absolutley love the car. But what's up with the digital dash???
Bruce914
Owner owns four 911’s a 1974 RSR race car. 1974 Carrera Andial 3.7 L twin plug and this Rasant 1975 911 S that you see here for sale lastly a 2016 Carrera. And a wife who says one of the Porsche cars has to go.
Beautiful car - curious why it keeps coming up for sale?
TyStav
Video posted
Bid in the amount of $50,000
Driving video and start up video? Thx