internal engine coatings
07-12-2011, 01:10 AM
#17
Three Wheelin'
Have you tought about using bigger intake valves? I think the 85-86 engines have smaller valves than the S4 motors, despite the fact that bore and stroke is the same.
07-12-2011, 01:21 AM
#18
Three Wheelin'
35 and 32 mm for intake exhaust on a 85-86 head compared to 37 and 33 for a S4 head. I could guess that this mode would make the engine perform better, since 85-86 engines have cam profiles similar to GT cams.
07-12-2011, 11:26 AM
#21
Thread Starter
not sure why you would do that. the reason most people do a hybrid (so i have been told) is to have a larger displacement, with much less complicated valve train.
