'79 RoW Questions
 

I've got a '79 Row car now. I'm wondering about differences. My last car was '83 USA.

I know that early USA SC's had 8.6:1 CR pistons and wider intake ports and runners. Later USA SC engines had narrower ports and runner, and 9.3:1 CR pistons. Later RoW SC engines had 9.8:1 CR pistons, but I do not know what CR pistons were used in earlier RoW SC engines. What kind of pistons do I have? What kind of intake ports and intake runners do I have (wider, I assume).

What kind of spark plugs are required in this engine?

Would a tachometer from an '83 USA car work in a '79 RoW? Are the speedometers interchangeable?

MY79 RoW
930/03
8.6 cr
180hp@5500
175ft-lbs@4200
ign cutoff 6800+/- 200
valves 49/41.5
ports 39/35
1.81 fan ratio, 126mm
same p/c as US

915/61 trans

I'm pleased you have a new car Super. Lets see some pics :)

Super, I've just looked at my '79 ROW manual and Das buch says sparkplugs are Bosch W225 T 30 (W 5 D) or Beru 225/14/3 A (14-5 D) and a gap 0f 0.031" or .8mm.

Thanks. I'll be taking some pics this weekend.