v12man

Hi

Does anyone have the valve/cam timing specifications on a 2000 Mk1 GT3?

Any any suggestions on how to change it to improve it - assuming stock cams will be used.

Thanks

Guy

911SLOW

mk1 engine specs

Camshaft
From the crankshaft via a double chain to the intermediate shaft, and from there to the inlet and exhaust camshafts via one double chain each.



Camshaft adjustment
Axial adjustment with 25° adjustment

Valve clearance
Hydraulic valve clearance compensation

Valve timing with 1 mm valve travel and zero clearance
Inlet opens
1 degree before TDC


Inlet closes
119 degrees before TDC

Outlet opens
133 degrees after TDC

Outlet closes
7 degrees after TDC

Firing order 1 - 6 - 2 - 4 - 3 - 5

Some German tuners played with cams, but I don't have any numbers.
Just a friend's car that lost its engine..

v12man

Thanks - much appreciated - I will post the full saga when we have final clarity on the reason for asking the question.