DA-170 85 measure from the face of

measure from the face of the of the exhaust port down to the center centerline of the inlet on your canister or tuned pipe

As other aspects are counted

Its two 50cc combustion events per revolution create a noticeably smoother-running engine than a conventional 100cc opposed twin

Shopping for someone else but not sure what to give them

Desert Aircraft

DA-170 85 measure from the face ofProven Reliability, Smooth Power The DA 170 is our proven two cylinder powerhouse for 40% aerobatic and scale aircraft. Renowned for its reliability, smooth power delivery, and crisp throttle response, the DA 170 delivers the performance required for everything from precision sport flying to Unlimited level aerobatic competition. ***Engines will no longer come with a paper manual, but instead a QR code linking you to the manual. This will allow you to