1974 Porsche IROC Series, 3.0 Liter 911 RS Carrera... Photo Gallery by slidevalve911rsr at pbase.com

1974 Porsche IROC Series, 3.0 Liter 911 RS Carrera...

...These are some photos of the 1974 IROC Series (International Race of Champions). Fifteen 1974 Porsche 3.0 liter RS cars were built by the Porsche factory with identical set-ups. The power output of their engines was conservatively calculated at approximately 320 h.p. To keep all things equal, the only allowed modification by the respective drivers was their seat adjustment!

In the process of collecting photos of each of the IROC 911 RSR entries. If you or someone you know has any information, period or current photos of these historical significant cars, I will greatly appreciate it if you can email them to me at ajserrano@msn.com so they can be posted in their respective photo gallery.

Thank you in advance for your collective leads and contributions!

:: Brake Hat - IROC? ::	:: IROC Miscellaneous Photos ::	:: IROC / Bright Yellow - Chassis 911.460.0016 ::	:: IROC / Grand Prix White - Chassis 911.460.0025 ::	:: IROC / Gulf Blue - Chassis 911.460.0035 ::	:: IROC / Pistachio Green - Chassis 911.460.0037 ::
:: IROC / Light Green - Chassis 911.460.0040 ::	:: IROC / Bright Green - Chassis 911.460.0042 ::	:: IROC / Aubergine - Chassis 911.460.0050 ::	:: IROC / Acid Blue - Chassis 911.460.0059 ::	:: IROC / Mexican Blue - Chassis 911.460.0075 ::	:: IROC / Indian Red - Chassis 911.460.0085 ::
:: IROC / Orange - Chassis 911.460.0090 ::	:: IROC / Sahara Beige - Chassis 911.460.0100 ::	:: IROC / Strawberry Pink - Chassis 911.460.0111 ::	:: IROC / Carmen Red - Chassis 911.460.0116 ::	:: IROC / Black - Chassis 911.460.0124 ::	:: Porsche 911 RSR, Follmer (IROC Series) :: ::

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Nismodat Motorsport		07-May-2008 10:42
I now have the Donohue car details confirmed from Penske Restorations dept. Details are as follows: Race 1 / White #2 Race 2 / Green #1 Race 3 / Black #12 Race 4 / Orange #1 Cheers, Tony

Nismodat Motorsport		25-Apr-2008 03:02
Can anyone please confirm for me the 4 car colour & number combinations that Mark Donohue drove? So far, I've managed to work out the following: Race 1 - White #2 Race 2 - White #1 Race 3 - Red? Which red & what number? Race 4 - Orange #1 Any help will be greatly appreciated. Cheers, tony

Mick		22-Apr-2008 09:39
Tim MALTON PORSCHE IN THE UK HAS THE PISTACHIO (I think that is how you spell it??) GREEN CAR FOR SALE FULLY RESTORED. I dont know the price but it is also in this months 911&porsche

slidevalve911rsr		15-Feb-2008 05:35
Hi Steve and thank you very much for your post. Do you by chance have any period photos? Love to see those! Thanks again and please stay in touch.

Steve Rupert		14-Feb-2008 23:19
I was fortunate in working with the #2 light blue car of which the drivers were Denny Hulme, David Pearson and Richard Petty. Another first to this race was the use of Goodyear Radial Slicks. Sorry to see Riverside Raceway turn into a Mall. Each car had a Tech asighned to it and a saftey sheet to be gone through before a practice or a race. Good to see this web site ! it brings back many memories.

Guest		30-Jan-2008 19:08
Can anyone tell me the dates of all the races

Tim		27-Jan-2008 15:19
Hello, does anyone if any of the 911's from the 74 IROC are on the market? Thank you

slidevalve911rsr		15-Jan-2008 05:43
"Guest", I did NOT doctored up or removed any of the comments or posts from this gallery. I can assure you of that. If someone does get out of hand with profanity, etc., I will remove those posts, no room for that stuff here... I'm not going to get in the middle of this discussion but I'm sure Mr. Glenn Stazak will eventually read and reply. Keep in mind that our collective purpose and goal, is to simply maintain, update and improve the information provided for us all to reference and use for years to come. As I said before, unlike writing a book, the information, details and photos can be easily updated unlike publishing a book... Thank you for your post(s)... PS: I wouldn't worry about being 'wrong' with your information, nobody really knows who you are! ; )

Guest		14-Jan-2008 17:37
this part of my post should of had quotation marks around it (all cars have 9 as first digit of sequential part of vin - like ALL 1974 Carrera RS & RSR 3.0's. they are part of the 100 plus cars built to homologate. VIN'S are 911 460 9001 - 911 460-9015). i was quoting (someone - i could swear is was G . Stazak). now it (the original posting of this statement) is mysteriously gone! ( i ) NEVER said or stated this wrong info - i know better. if you look at the rest of my post - i had REPOSTED, the later added correct list - i said then "to come back eating crow" - and posted the LATER posted correct list. there was an earlier INCORRECT list on this thread (posted by stazak)- now it is gone . looks to me like this thread was doctored so that SOMEONE would not look wrong. i stand by my statement of "do your research" - or post a ? with it. i am far from knowing all the correct info. but i don't make finite statements unless i know they are accurate.

Bob Bergstrom #62 IMSA		19-Dec-2007 01:11
I stumbled on to this most interesting site. I had won the IMSA GTU championship in 1973 and wanted to go GT racing. I bought the Strawberry Pink Porsche from Roger Penske the last day of the IROC race at Riverside. The price was around $45,000 for the car and extra tranmission. I bought this car since it had the lowest race miles on it since David Pearson blew the transmission during practice. We painted some silver highlights along the side and raced the car at the IMSA finale in Daytona. Peter Gregg protested us since the car had a plastic rear window. Charlie Rainville allowed us to race by adding an extra 50 lbs to the car. For the 1994 season we got Head Sportswear sponsorship and painted the car white with the wording Head and colored bands running across the hood and down the car. We had quite a successful season (11 total races) considering we were on a very limited budget and could not get the latest intake manifold from Porsche without buying an entire motor. My mechanic was Dieter Inzenhofer who later co-founded Andial, one of the most highly regarded Porsche Performance companies in the world. He worked for me for a hundred dollars a day plus expenses, and some days were Very, Very long. - Those day are gone forever. I found out from Michael Keyser (#1 RSR, not an IROC model) that this car was recently purchased by an individual in the East. It is a rare IROC car in that it is one of the only ones that was never wrecked and was not cut up to turn the transmission over - - -I sold the car around November 1974 Isn't the internet wonderful - - -

Bob Bergstrom		19-Dec-2007 01:00
The wheels were not centerlock

Christian		31-Oct-2007 08:02
..in the new issue of the bristish magazine 911 and Porsche world there is a very interesing article about the IROC�s. There was a press-conference in oct 73 where the series and the cars were introduced. All IROC�s were delivered to Roger Penske with the 73 duck tail - some great pictures show that only three of them had the great 3.0 RSR tail at this moment. I didn�t know...

Mats Linden		24-Oct-2007 16:38
Hallo RSR friends! Have owned a few RSR and RSs over the years, any one that spent time checking IROC RSR history. I have a chance to get my hands on the # 100 Sahara beige car. Best regards! Mats linden

slidevalve911rsr		14-Sep-2007 00:39
"GUEST", FYI... Glenn Stazak did NOT enter the following post. "Your info. Is COMPLETELY wrong on IROC 1974 RS Vin #'s - all cars have 9 as first digit of sequential part of vin - like ALL 1974 Carrera RS & RSR 3.0's. they are part of the 100 plus cars built to homologate. VIN'S are 911 460 9001 - 911 460-9015. DO YOUR RESEARCH" -2005" You may want to re-read Glenn's post as he was quoting someone else... BTW, I do agree with you about "research and verify" and the reason I love posting and being able to quickly update "errors & ommissions" (unlike writing a book). ; )

Guest		13-Sep-2007 17:22
i like this glenn s. guy (not ) - emphatically making statements like "Your info. Is COMPLETELY wrong on IROC 1974 RS Vin #'s - all cars have 9 as first digit of sequential part of vin - like ALL 1974 Carrera RS & RSR 3.0's. they are part of the 100 plus cars built to homologate. VIN'S are 911 460 9001 - 911 460-9015. DO YOUR RESEARCH" -2005 then to come BACK 2005 - EATING CROW - "911.460.0016 IROC engine #684 0021, Bright Yellow 911.460.0025 IROC engine #684 0022, Grand Prix White 911.460.0035 IROC engine #684 0024, Gulf Blue 911.460.0037 IROC Applejack Racing #684 0027,Pistachio Green 911.460.0040 IROC engine #684 0023, Light Green 911.460.0042 IROC engine #684 0025, Bright Green 911.460.0050 IROC engine #684 0028, Aubergine 911.460.0059 IROC engine #684 0029, Acid Blue 911.460.0075 IROC engine #684 0033 ,Mexican Blue 911.460.0085 IROC engine #684 0035, Indian Red 911.460.0090 IROC engine #684 0031, Orange 911.460.0100 IROC engine #684 0024, Sahara Beige 911.460.0111 IROC engine #684 0033, Strawberry Pink 911.460.0116 IROC engine #684 0034, Carmen Red 911.460.0124 IROC engine #684 0026, Black I DON"T SEE ANY "9" in seven digit position. i don't see #'s built sequentially from 001-015 !!! people need to hold up and keep there mouths shut about finalized info. UNTIL it is researched /verified and proven!!!! then you won't need to be eating crow, and looking like an A___. and this was a PERFECT example of it.

slidevalve911rsr		07-Aug-2007 18:22
The IROC series 911s did NOT use center-locks, only Fuchs and one can clearly see this in the period photos http://www.pbase.com/slidevalve911rsr/image/54215032 and http://www.pbase.com/slidevalve911rsr/image/54215034

Guest		07-Aug-2007 18:19
Can anyone confirm wether or not the wheels were centerlock or 5 lug 9 & 11's? Thanks a lot,

porschelover		17-Jul-2007 15:47
I'm not gonna tell you you were wrong or anything, because this race was like before I was even born. But I love all the pics man. I'm totally into Porsche's....

originalkeyster		12-Jun-2007 22:24
Greetings! I have now seen Ken's article and pictures in excellence magazine and they are VERY cool! I have been looking for images of the IROC Porsches with their ducktails and had only found one of them at the factory and another of them on a transport (leaving the factory, I presume). Ken, are there more photos in your collection? I would love to see them all in their full glory! It is a dream of mine to someday have an IROC replica looking as they did from the factory.

slidevalve911rsr		05-Jun-2007 02:13
Can't wait to get my hands on it! Thanks again for the 'heads-up' Ken. Stay in touch. Armando

Ken Gronbach		05-Jun-2007 00:20
Armando, The story and photos will appear in the August issue of Excellence Magazine. It will be on the news stands shortly. The editors gave me five pages. The photos should cause a bit of a stir because they have never been published before. Ken Gronbach

slidevalve911rsr		12-Mar-2007 20:40
From: Armando [mailto:ajserrano@msn.com] Sent: Monday, March 12, 2007 1:33 PM To: 'Ken@kgcdirect.com' Subject: IROC... Hello Ken! Yes, please, that would be fantastic. One small request... Once your article is published, would it be possible for you to allow me to post those photos here as well? If so, you can email them to me at your convenience. This website continues to grow and grow with all the collective contributions from people like yourself and others around the world. How cool is that?!!!! ; ) Thanks again! Armando Serrano Ps: can't wait to see the article, please let me know once it hits the stands.

Ken Gronbach		11-Mar-2007 19:25
Greetings, I wrote earlier of the twenty unpublished photos I took of the fifteen IROC cars at a pre-race event at Riverside Raceway in October 1973. They will be published in an upcoming issue of Excellence. I am writing the story and will reference this site with your permission. Ken Gronbach

slidevalve911rsr		29-Jan-2007 16:39
Glenn, thank you for providing the supporting documentation showing how the 911 IROC series chassis numbers have been advertised and documented in the past. You also mentioned the very well researched book series, "Time and Two Seats" http://www.bentleypublishers.com/product.htm?code=h727 where it clearly shows one of the IROC chassis serial numbers as �0037� and not �9037� as our "Guest" emphatically states to be the correct chassis number sequence. �Guest�, please reference the following 2 links; http://www.pbase.com/slidevalve911rsr/image/73699972 http://www.pbase.com/slidevalve911rsr/image/73700098 ...and note how the IROC chassis numbers were listed. By the way, I did not just create the references to prove our point. �Guest�, if by chance you have any documentation to support your claim and to the contrary, I kindly encourage you to send it along for review. Thank your for the posts! ; )

Glenn Stazak		29-Jan-2007 16:23
On 1/11/2204 Guest wrote: "Your info. Is COMPLETELY wrong on IROC 1974 RS Vin #'s - all cars have 9 as first digit of sequential part of vin - like ALL 1974 Carrera RS & RSR 3.0's. they are part of the 100 plus cars built to homologate. VIN'S are 911 460 9001 - 911 460-9015. DO YOUR RESEARCH" You evidently did not do your research, the IROCs where neither 100% RSR nor RS, I stand behind the VIN #s I provided. I am providing Armando with additional information to post supporting my position, I encourage you to provide your. 911.460.9016 was sold to Sonauto, Paris, it was White while 911.460.0016 was the Bright Yellow IROC car. Aaron Hatz has 911.046.0035 listed as �1974 IROC RSR (0035)� on his website www.flat6.com/projects.shtml 911.460.9040 was sold to George Dyer while 911.460.0042 was the light green IROC car, I believe this was the 3rd IROC sold thru Stoddards in July of 1974 911.460.9050 was sold to Erlen Buchet thru Sonauto, France while 911.460.0050 was the Aubergine IROC sold thru Stoddards in July of 1974 911.460.9059 was sold to Reinhard Stenzel thru Max Moritz while 911.460.0059 was the blue IROC listed on Marcel Roks Consultants website as #0059 911.460.9075 was sold to Richard Reventlow-Hahn of Germany while 911.460.0075 was the Mexican Blue IROC car. 911.460.9090 was sold to Sepp Greger and raced in the European Hillclimb Championship while 911.460.0090 was the Orange IROC car. Look at the VIN# on the eBay auction 911.460.0111 www.pbase.com/slidevalve911rsr/911rsr_factory_cars_iroc_9114600111_st rawberry_pink This IROC was sold thru Stoddards in July of 1974

slidevalve911rsr		27-Jan-2007 17:03
Hi Glenn! Please feel free to jump in and verify the chassis numbers you provided me at the start of this thread. Is your information correct or is our "Guest" that's right? Please let me know so I can reflect the changes. Thanks! ; )

Guest		27-Jan-2007 10:45
Hello Ken, I would also be very, very interested in the pictures that you took at the Riverside press conference. If you are willing to sell copies please do inform. Many thanks, JD

Guest		11-Jan-2007 14:44
your info. is COMPLETELY wrong on IROC 1974 RS Vin #'s - all cars have 9 as first digit of sequential part of vin - like ALL 1974 Carrera RS & RSR 3.0's. they are part of the 100 plus cars built to homologate. VIN'S are 911 460 9001 - 911 460-9015. DO YOUR RESEARCH

Ken Gronbach		13-Dec-2006 19:25
Andy, Sorry,the photos are not digital. Working on it. Ken

Andy		11-Dec-2006 12:31
Hi Ken, I would be very interested in your fotos. Do you have them in an electronic format ? In case yes I would very much appreciate it you could mail them to me (andreasschwarz@go.com). Many thanks in advance. Andy

Ken Gronbach		07-Dec-2006 03:08
I was at the Porsche press conference at Riverside Raceway in October 1973. The press conference was not well attended. The Porsche rep from Stuttgart droned on and on until someone from the press finally cut him off. Unser was there and was already jokingly accusing everyone one else of running big motors. Ironically I appeared to be the only one present with a decent 35mm SLR and got twenty very good shots of the fifteen cars in front of the grand stand including some engine photos. There are no numbers on the cars and the headlights are clear. Some cars have the big whale tail and others have the abbreviated version. The first three cars lined up three abreast were red, black and pink all with big spoilers. I frankly have no appreciation for the significance of the photos or their value. Can someone help?

Andy		29-Nov-2006 18:28
slidevalve911rsr , I sent the pics to your email address. The quality is quite poor, but better than nothing. In the meantime I found the answer to my question: The cars have been unsed in the first IROC race with thesmall and classic 2,7 RS rear spoiler. Afterwards they have been sold (montly to the IROC racers) and then rebuilt with the standard 3,0 RS wing.

slidevalve911rsr		23-Nov-2006 18:59
Andy, can you email us the photos? Very interesting...

Andy		23-Nov-2006 14:41
In a Porsche book here in Germany I just found 2 pic's of the 15 Porsche IROC in the Weissach factory. The seem to have been delivered with the small and classic 2,7 RS rear spoiler. Does anybody have a clue when the spoiler has been replaced by the big wing we can see on the pics above? Thanks Andy

Patrick Kelley		29-Aug-2006 02:24
Does anybody know if the video footage from the Porsche IROC series is still around?? Seems like I remember it on Wide World of Sports? Help! Thanks! P.Kelley

Glenn Stazak		30-Dec-2005 05:19
-----Original Message----- From: Glenn Stazak [mailto:glenn@stazak.com] Sent: Thursday, December 29, 2005 5:05 PM To: Armando Subject: RE: 911 IROC Have a happy new year! we need to get going the oil cooler shroud The drivers switched cars from race to race so no one would have an advantage. A couple of these cars were raced after the IROC Races 911.460.0016 IROC engine #684 0021, Bright Yellow 911.460.0025 IROC engine #684 0022, Grand Prix White 911.460.0035 IROC engine #684 0024, Gulf Blue 911.460.0037 IROC Applejack Racing #684 0027,Pistachio Green 911.460.0040 IROC engine #684 0023, Light Green 911.460.0042 IROC engine #684 0025, Bright Green 911.460.0050 IROC engine #684 0028, Aubergine 911.460.0059 IROC engine #684 0029, Acid Blue 911.460.0075 IROC engine #684 0033 ,Mexican Blue 911.460.0085 IROC engine #684 0035, Indian Red 911.460.0090 IROC engine #684 0031, Orange 911.460.0100 IROC engine #684 0024, Sahara Beige 911.460.0111 IROC engine #684 0033, Strawberry Pink 911.460.0116 IROC engine #684 0034, Carmen Red 911.460.0124 IROC engine #684 0026, Black

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