Hi Comp issue
Posted: Fri Aug 04, 2023 4:44 pm
Finally installed and started up my 230 pinasco build on SS180 block. Runs really well..but..compression is so high it’s a nightmare to kick off and even bent my MHR stand plate trying! Squish is 1.8mm as recommended. 2 choices I see, either have the head reprofiled or drill a decomp hole above the exhaust port. Anybody done this? seen them done on Lammy kits. Or is there a 3rd option?
Engine is built for touring set up. SS180 gearbox with BGM 23T clutch. 28 mm SI carb, 2kg Atomic flywheel and Sip 3 box
Engine is built for touring set up. SS180 gearbox with BGM 23T clutch. 28 mm SI carb, 2kg Atomic flywheel and Sip 3 box