Cylinder Heads 16V. £750 + VAT (Exchange)
As fitted to the MK 1 & 2 Golf, and popular amongst road car modifiers and trackday enthusiasts. If you want to realise the full potential of your VW 16V engine you must address the restrictions of the standard head. If standard head does not supply the flow, it will not make the power.... that's Physics !!
Our head shows a very healthy inlet increase of 21.5 % peak flow rate at max valve lift is seen here along with a substantially improved flow rate across the valve lift range. Exhaust improvement is slightly less dramatic but none the less a substantial 14.4% improvement at the max valve opening. This head has the potential to give an flow which will provide up to 252 BHP and 8500rpm or 219 BHP at 7000 rpm with fueling, exhaust and camshaft modifications.
Note : flow diagrams show flow against specific valve openings at 0.050 inch valve openings at 10" pressure. Therefore actual flow volume increase is measured as the area under the graph (indicated in yellow for inlet and blue for exhaust). Standard valve sizes are used on our heads unless specified as a big valve version. Tests shown here are carried out on a flow bench on a bare head without filters. Therefore the difference between a standard engine with standard inlet ducting and filters will be larger than shown here.