DDK - Die Deutschen Klassiker

Hi All I hope I don't sound to snooty but a reduced automatic "Speedy" really isn't a "Speedy" at all (to me anyway!), surly it has to be a manual. Sorry if anyone takes offence, hey its my opinion after all. All the best Ian F. Ian I agree needs to be a manual to have the orgin...

Ok so I have now read a few books (past the first page) and noted the errors of not correcting the CD for frontal area an also missing out the loss from rolling road power figure to real world power at the wheels. So the below I believe is correct: v max (kph) = 100 * 3√P/(k*CD*A) p = engine power a...

You have a PM

Thats very interesting to see your car in the wind tunnel. I’m no auto engineer but I don’t think its quite that simple to calc Vmax ! Vmax depends largely on Aero drag which is proportional to the drag coefficient, frontal area and the square of the vehicle speed. Also add in the rolling resistanc...

Interesting reading, and a CD of 0.32 not bad. I remember testing a 1970s Austin Princess once, that wasn't so good. :lol: No 0.320 is quite good, the latest turbo is only 0.295 (although the lift is much better). The main reason for being that low (in relative terms considering its age) is due to ...

Great information! The rear lift figure shows why 911s have gained larger and larger rear spoilers over the years! :) 80kg rear on a 1000kg car, with no front lift is pretty significant, no wonder the back of our cars start to wander about once at 'high' motorway speeds. The next questions on the e...

I've done what seems to be the standard route....uni (engineering degree) then into automotive development. I now lead a team of aeroacoustic engineers for Jaguar & Land Rover.

Really interesting and I get to play with some nice cars at work, including Porsches.

Jan I understand your a little dubious, I worked them out more than once to be sure, these are only high level formula so many things are assume to be constant or of no importance, so is indication only. I am also an engineer (did my degree about 10 years ago so forgot it all) and work in automotive...

My car on test in the MIRA wind tunnel, more info here if you are interested. http://www.ddk-online.com/phpBB2/viewtopic.php?t=26702

October is quite a windy month so how about one of the below? http://www.porscheclubgbforum.com/upfiles/775/A858CB24E11D441D944FD36EBDDD4BC8.jpg http://www.porscheclubgbforum.com/upfiles/775/328E1A3F18A945509D37C337EEB5F54D.jpg http://www.porscheclubgbforum.com/upfiles/775/B3BC58462A024B95A13A70ADEC...

I had a chance to take some high level wind tunnel data on my car (SWB 912) the other day. With the main aim to baseline the car for lift and drag and also to get some undertstanding of small things that could be changed which may effect both. In summary opening holes on the front of the car (fog la...

I think various people stock them, although Andy Prill is always a good bet. To be honnest most people seem to use Neutek now as the Norris is a re-grind cam. From his site: http://www.maxted-pageandprill.com/Products/cams.html Cam Shafts We can supply standard or performance cams from Norris and Ne...

From my knowledge they are exactly the same interior size for LWB and SWB, the move was in the wheel base and rear fender (I think). So if I am correct a carpet set will fit either. Although I think there maybe some differences in meterial type and shape around the front map pocket area.

Steve

Kit is yours, PM sent.

Hello all

This complete full flow oil system with exteranl rear wheel arch monted oil cooler is still for sale......£150 the lot.