Photos and Restorations

Porsche 924-005 Prototype Restoration

This page is dedicated to the Restoration of the Porsche works prototype VIN 924 005 as it pertains to it's time spent at TTRS from April to August of 1998. This car is one of only two Porsche works prototype 924 GTP/944 LM cars ever built. The sister car, VIN 924 006 raced at the 1981 24 Hours of Le Mans with Jurgen Barth and Walter Rohrl sharing the driving duties where they finished 7th over all as well as taking the award for the car that spent the least time in the pits...a mere 56 minutes!
924 005 was the mule or test bed car used for the development that led to the success enjoyed by Porsche with 924 006 at Le Mans.

I should note that for identification purposes that I am using both the 924 GTP and 944 LM designations as it was known as both although 944 LM is probably more correct as the car was the prototype for the production Porsche 944. The reasoning for the GTP designation is because the formal introduction for the 944 had not been held prior to Le Mans therefore the car was not yet homologated and therefore not eligible to run in Group 4.

This page will be an evolving one as I continue to collect photos and add commentary as well as answer some questions that I'm sure will be forthcoming. I urge you to return often to check for new content. I also welcome your questions and comments by email at ttrs1@citlink.com regarding this car.

 
 

I am currently in the process of scanning a number of photos of 924 005, 924 006 as well as the ex-Alan Hamilton 924 GTR that contained 005's original GTP parts which were given to Hamilton by Porsche to upgrade "016" when competing in Australia. At the time of 924 005's restoration both of those cars were at TTRS to expedite the process. As stated above the restoration was initiated in April of 1998 with the goal to be at the Monterey Historic Races in August of that year as Porsche was the Honored Marque in celebration of Porsche's Fiftieth Anniversary!
 

VIN 93BS720016 924 GTR as it arrived at TTRS in March, 1998


016 in the foreground being stripped and the tub of 005 as it arrived in April 1998


A nice shot of the fuel injection system prior to removal from 016


016's VIN stamped in engine compartment


Nice cam cover!


 Radiator, intercooler tube, radiator tube and dry sump oil lines routed through the frame in 016


LF corner assembly


Front hub


RR corner, carrier and rear springs


Brake caliper rebuild


Freshly rebuilt Bilstein shocks


Starting to put 005 back together, note cast brake master cylinders mount, steering rack, frame reinforcements, oval hole in left frame rail for dry sump oil lines...oil tank was in the rear of the car


More front frame detail


Back on the ground after I don't know how many years!


Roll cage detail showing harness mount and front mounting and gusseting at A pillar


Mounting of roll bar to floor, note welded in reinforcement plate



Rear hatch area, note the welds at the rear wheel wells showing how they were extended inward


One of my favorite views showing the big rear meats and how far they extend past the stock body!


A couple of things to note in this shot such as the two vertical holes for the dry sump oil lines that ran through the frame to the front of the car, the rear roll cage mounting and the original fiberglass fuel cell container that was shipped to Fuel Safe to have a new bladder designed and installed


I think this gives a good perspective of how just much wider the GTP bodywork is from stock and even over what the previous 1980 924 GTP cars had for bodywork


Here's a really cool shot that shows how the fuel cell was designed with clearance for the transaxle, the rear suspension and anti roll bar as well as the transaxle mount


Here you can see why Porsche utilized a bottom mount radiator as the "conventional" space was taken up by a massive oil cooler in the foreground and an equally impressive huge intercooler to the left of it!


Boy it feels good to be home, 2.5 litres and 410 horsepower in endurance trim...capable of more


Just a couple of belts and pulleys and other "stuff"


Back to the hatch area to show the fire bottles, newly fabricated dry sump oil tank, left side fuel cell transfer tube, right side fuel cell "dry break" and the air jack control valve...and there's a story behind that little red handle!


Shot of the dash showing the VIN plate on the right side


Another dash pic plus detail of electrics under right side of dash, shifter, boost control and roll cage structure on right side


Here's a good shot of the left front showing the wheel fan, air jack & lines, heat shield and exhaust outlet just below air jack lines which is different from the location on 006 which exits on the right side of the car


Getting closer...


Starting to look like a race car again


Ready to load up for the trip to Monterey after getting some finishing touches at Bevan Weston's Mid Valley Engineering in Phoenix, Arizona


005's owner at the time Jim Edwards and myself at Monterey...both sorely disappointed as the engine in 005 would not fire. The car was to be driven by non other than Jurgen Barth at this event. A good friend of mine and Porsche expert Bob West tried in vain to rectify the problem with me and we even enlisted the factory Porsche boys who were there to support the huge display of cars that Porsche shipped over for this event, but even they couldn't come up with a solution. The car had a very unique prototype crank fire ignition triggering system that was located at the flywheel and it may have been the cause.


Jim Edwards and Jurgen Barth


Another shot of Jim and Jurgen at Monterey

As I am putiing this together I"m already thinking of other photos and commentary that I want to add.

At this point I would like to say that 924 005 had changed hands and became part of the Matt Drendel Family Collection and upon Mr. Drendel's passing was auctioned by Gooding and Company at Amelia Island on March 9, 2012. The car is now back in Germany and available for purchase at Freisinger Motorsport, price on inquiry.

924 006 has been restored at the Porsche factory and is currently on display at the Porsche Factory Museum in Stuttgart-Zuffenausen, Germany.

I will be adding more photos of 016 as well as some photos of 924 006 that taken prior to it's restoration when it was in storage at the Porsche factory with many other Porsche race cars. These photos and some photo copies were given to me to aid in the resoration of 005.

924 006 Photos while in storage


Through the driver's door


From the right side window


Through the hatch


Clear shot of the gauges


Nice MOMO wheel and notice production pieces being utilized such as switches and vents


Ignition electrics under right side of dash


LR detail


Fire bottles and oil tank


RR detail


Frontal area


Good shot showing radiator, oil cooler and intercooler


Engine compartment detail and VIN


LF detail


Nice injection photo


Transaxle and fuel pumps

Update August 27, 2015:
While going through some paperwork I came across some photocopies of 924-006 that were sent from the factory when the restoration was taking place. As I did not take many photos of the undercarriage I thought I'd post a few from the photocopies!


These first few shots will detail the rear undercarriage and transaxle




Here's a nice shot showing the transaxle oil cooler tucked up in the torque tube tunnel




A really good view of the transaxle, oil cooler, rear suspension, fuel pumps and fuel cell


I know it's a bit blurry but these next two photos show a lot of detail of the front undercarriage such as brake ducting, headers, turbo, wastegate, intercooler and more!


Sharp eyes will notice things like the oil sump, dry sump lubrication, the turbo, radiator, etc.


006 and production 944 Turbo advertisement



It perhaps goes without saying that a project of this scope requires the effort of many to accomplish the task at hand and that is very true in this case. 

Jim Edwards is a Porsche fanatic and those who know him will certainly attest to that fact. He also is a very, very hands on Porsche owner and I mean that from a "get in and get your hands dirty" type because he KNOWS how to do it. His knowledge of Porsche cars is extensive to say the least and few can match his passion for the Marque. He would come to the shop and work on this car like crazy as well as managing so many things behind the scenes to make this restoration happen. I am honored that I was able to join him in this endeavor and see 005 be put back together again.

I had mentioned above that the car was completed at Bevan Weston's shop in Phoenix. He and his crew were able to complete the car in time for it to get to the Monterey Historics when it became obvious that Mr. Edwards and I were not going to be able to. At this point one must put priorities ahead of pride and I suggested that Mid Valley Engineering would be the appropriate place to tie up loose ends. I should also say that Bevan's shop was the facility that was chosen to rebuild the very unique GTP gearbox.

At the time I agreed to undertake this project I knew that the time constraint...basically 4 months...was going to be a tough nut to crack especially since I already had prior commitments to provide track service for various Vintage, Porsche and SCCA events and I was only a one man shop. However after putting a schedule together which had me working at no less than thirteen weekend events between March 7th and July 12th and discussing it with Jim we decided that even considering the forementioned late start date it was still worth a try to get this car completed before the Monterey date and so we began the task. As the saying goes "we gave it the old college try"!

Another person who was instrumental in the restoration of 005 was Kerry Morse who from my understanding brought 005, and Jim Edwards together. Kerry was also able to provide me with some valuable information and photos via his connections at the Porsche factory. In addition he suggested and expedited the rebuild of the engine by a former employee of Andial.  

And of course...


I had my Supervisors to make sure things were running smoothly!