Re: Putting a turbo on the ol' 1915
Posted: Sat Feb 01, 2020 6:50 pm
Did some work today.
Scaled it using some wood blocks, an incline meter, and a hook scale. ended up with 35/65% weight distribution, and 1067 lbs (no fuel or driver). Verified method on known weight items, seems pretty close. Only did it for curiosity sake not because I particularly care.
Did some prep for first fire. Set initial spark with a trouble light, lashed valves, set plug gaps to .19 as suggested (ngk D8 range), installed a bluetooth wideband for tuning, and installed a boost gauge.
Did a compression test and was confused to find an even 90psi on all 4 cylinders (cold, closed throttle, dry). Wet test provided the same results. This engine has very few hours on it since it was built and I guess I expected higher, 100 hours would be a gross overestimation. This engine has noticeably higher exhaust pressure pulses when running, and no signature of blowby compared to my stock 1600 so it would appear to be healthy. Compression ratio is supposed to be 8.5:1 with a 110 cam. I wasn't really planning on learning how to swap jugs/cylinders this winter, so for now Im not going to sweat it too much and run it. I never did a compression test when I first got it, so im not sure if its even a concern.
Scaled it using some wood blocks, an incline meter, and a hook scale. ended up with 35/65% weight distribution, and 1067 lbs (no fuel or driver). Verified method on known weight items, seems pretty close. Only did it for curiosity sake not because I particularly care.
Did some prep for first fire. Set initial spark with a trouble light, lashed valves, set plug gaps to .19 as suggested (ngk D8 range), installed a bluetooth wideband for tuning, and installed a boost gauge.
Did a compression test and was confused to find an even 90psi on all 4 cylinders (cold, closed throttle, dry). Wet test provided the same results. This engine has very few hours on it since it was built and I guess I expected higher, 100 hours would be a gross overestimation. This engine has noticeably higher exhaust pressure pulses when running, and no signature of blowby compared to my stock 1600 so it would appear to be healthy. Compression ratio is supposed to be 8.5:1 with a 110 cam. I wasn't really planning on learning how to swap jugs/cylinders this winter, so for now Im not going to sweat it too much and run it. I never did a compression test when I first got it, so im not sure if its even a concern.