Create successful ePaper yourself
Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.
at two weeks. The case was leak-free, so the decision<br />
was taken to leave it together, refurb the heads and<br />
assemble the new parts. Two weeks became six and, in<br />
hindsight, Shirish would rather have split the case and<br />
balanced the bottom end.<br />
Brand spanking new Mahle pistons and 98mm barrels<br />
were not the only bits little brother bought. A pair of<br />
Dougherty Racing DC20 cams were found, and a 3.2<br />
throttle body was bored out 3mm to increase the<br />
charge at wide-open throttle. A lightweight starter was<br />
added, as well as Club Sport mounts and an upgraded<br />
K3 alternator.<br />
The list goes on: Smart Racing valve springs, 993 head<br />
studs and rod bolts, refurbed injectors, new ICV and<br />
crank sensors, gearbox sensor, oil pressure switch and<br />
new seals everywhere. The transmission was given a lift<br />
with the G50 clutch fork mod, and new master and slave<br />
cylinders fitted. The clutch was replaced with a 930<br />
clutch disc, new release bearing and a Kennedy<br />
lightweight aluminium pressure plate.<br />
Mothy heat exchangers and cross-over pipe were<br />
replaced with standard Porsche items, flowing into a<br />
Scart pre-silencer and a DP Motorsport muffler. The<br />
engine fittings were replated, tinware was replaced and<br />
powder-coated, and new rear wheel bearings were the<br />
final ‘while-you’re-in-there’. Phew!<br />
As the car arrives at our meeting point, the sound is<br />
impressive; the engine exudes unadulterated authority<br />
through the chunky DP silencer. This muffler is heavy –<br />
Shirish reckons 12 kilos – but the noise is anthemic.<br />
So it should be: new ones cost circa €1200.<br />
The chorus of both cars on the move is intoxicating.<br />
The 3.2 has a lighter tone than its bigger brother; the<br />
sweet spot of that air-cooled thrum meets the ear drum<br />
lower down the rev range. The 3.4 is understandably<br />
louder through its bigger pipe, but volume is not the main<br />
ingredient. The DC20s lend a bass-heavy burble to the<br />
tune played at tick-over, which carries right through<br />
the revs: it’s race-car sound at sensible decibels. At<br />
wide-open throttle, it rocks the casbah.<br />
Shirish loves the noise it makes, but he has not really<br />
heard it yet. Just as an acoustic guitar is never properly<br />
heard by the guitarist (the sound exits away from your<br />
ears, set behind the sound hole), so the sound of a 911<br />
can only be appreciated when standing behind it. Now<br />
curious, he hands me the keys and I take off.<br />
Take off is the right expression; this is a rocket ship.<br />
I am expecting the bigger capacity to slow the revs<br />
down, but the reverse is true. Similar piston area with a<br />
slightly lighter rotating mass means the motor spins like<br />
78 911 & PORSCHE WORLD