333pg333

A 924 GTR which from what I've gathered has been resuscitated last year by either some privateers or a German tuning house. My German is pretty rusty so I can't find out the total spec on this build but I believe that they've had to make quite a few new parts for it. I believe that they run it to approx 440bhp. Sounds pretty rough and I thought it was 'missing' but have been told that this is just how it sounds so must be pretty lumpy cam. The videos aren't the greatest but what can you do...

http://telkamp.de/

333pg333

Some pics:

Paulyy

WHY did i open this. WHY.

i have a spare 924 shell sitting there.. and a motor.. and a lot of spare parts.. and the equipment to make anything i want.

Thom

The shell was modified into a tubular frame to run in the IMSA series in the US in the 80s.

Reiner had little to no documentation when he was delivered the car and spent much time analysing it all before he could even begin with the restoration.

He made several special tools to get there. Among other anecdotes he mentioned to me that after assembling the engine he had an electric motor onto the crank for several hours in order to completely flush the engine and the all new oil & coolant lines from any bit of debris that might have been left in there, in order to make sure that the whole assembly would be 100% clean upon the first start up.

He started the car when I was there and it sounded far less lumpy than it does on the Hockenheim video. Yes the camshaft may be a very aggressive profile, according to how he described power delivery - very binary, but making the car not any less of an exhilirating drive

333pg333

Ahh, Thom, it was you on that thread. I had hoped you might be able to shed a little more light on this build. So have they had to make some one of custom components for this car? Do you know if they've returned it to stock design or have they modified it? Didn't those cars used to run something like 7:1 c/ratio?

Thom

Sorry, I did not ask about such technicals details.

However my feeling is that the engine was rebuilt in the same spec as when it came in, only probably using modern consumables, obviously. These cars were already exceptionnally fast back in the days thanks to a full Uniball chassis and a very low weight, and pretending any kind of "engine upgrade" might have been out of propos on such a rare and original piece of Porsche racing history.

fred27

Thanks for the pics and background info.

333pg333

Yes, I'd imagine you're correct Thom...although I'd be thinking they were tempted to run higher c/r if the original one was under 8:1 iirc?

My pleasure Prof Fred.

Landjet

Body wraps have come a long way. Thanks for posting, and Patrick I was wondering what shock set up you are running on your car?

333pg333

Just Moton 2-ways Craig. Also with one of Bruce's / 95ONE's rear T-bar delete kits.

Some more pics of this 924 over the years.

TonyG

What's odd is the ride height of the cars. Look how high they ride.

TonyG

Rich Sandor

Probably groundclearnce regs in the class they raced in.

TonyG

Maybe. I wasn't there. But typically ground clearance issues are for cars that are very low to the ground and use the proximity to the ground to create down force.

These cars were never that.


TonyG

333pg333

No, this was in the infancy of aero and downforce. Have a look at a stock 930 back in the day. They look sooo high now to our eyes. I think the style of the wheel arches on these 924GTR cars also make them look like they have a slightly bigger gap than might actually be there.

Duke

Agreed, very odd that they run that super high. The 944 GTR was run much lower.