The preliminary results are in on the Moss Supercharger kit mounted on a 18GB engine.
1. Kent 270 cam
2. 9.0 to 1 compression ratio; using Wiseco forged pistons.
3. Pauter rods, but stoke was unchanged
4. Flowspeed supplied, ported and polished, aluminum alloy head
5. Mallory UNILITE 9000 distributor (Will probably go to MSD and use a vacumm assist on the advance in future)
6. MSD 6 series ignition
7. Ran Royal Purple braek-in oil (30 SAE). Oil pressure was high ranging 75.8 @ 3000 and going to 79.4 @5500. If I had it all to do over, I would not buy the uprated oil pump.
8. The stand suppied 2.3 psi fuel supply pressure dusring the test, well within the SU range as best I can tell.
9. Water temp 153 degrees @3000; 156 degrees @5500
RESULTS after 12 pulls on the dyno and some tweaking of the timing:
C_TQ: 143.4 lbft @3600 rpm
CPower: 137.3 C_HP @ 5900 rpm
Summary:
Horsepower peaked at 5800 RPM. The goal was to have a good solid DRIVEABLE car and it is all of that through 6000 rpm. Around 6000 we just rum out of cam. No valve crash or float eveidenced. Total advance gave best results at 32 degrees. Cruising range had really great specific fuel consumption; .515 at 3000 & .426 at 3600 rpm. The torque curve varied less than 8% between 3000 to 5500 rpm; peaking at 3600. (very impressive; no trouble in the freeway passing lane for this car). Exhaust gas tempran between 1275 & 1215 for ports 1&3 @ 3000 rpm; rising to 1314 & 1307 @ 6000 rpm. The siamese exhaust port was 1411 at 3000 rpm and went to 1464 at 6000 rpm.