It's on the home page as a news item, but I figured I'd post the vid here for comments...
In a 3 day mad thrash Bill got his motor together and on the pump at The Carb Shop. Some unique things about this engine: first, it was very sensitive to timing and AFR. Once we found the right settings, it made huge power... and it had this crisp, unique sound to it that is very hard to describe. Everyone in the dyno room noticed how it sounded clean and strong once we figured out the AFRs and timing. From what I understand, engines with very good cylinder-to-cylinder consistency (airflow, etc.) display these characteristics.
Lem Evans knows what he's doing with those cylinder heads!
We monitored AFRs with 8 separate sensors. I know now, from more experience, that Bill's combo is just about the best balance you can achieve naturally, without adjusting per-cylinder fuel quantities.
The other impressive detail is that, while it makes well over 1000hp (on pump swill!), it *still* makes almost 600 ft-lbs of torque at 3500rpm!! check out the video where George starts loading the engine before the first pull, watch the torque meter zing up past 585 ft-lbs at 3000rpm... I've never seen it's equal.
I enjoyed the hell out of this trip, hanging out with Bill, Brian, Shaun, Chad, Cole, and the Vrbancic brothers is a guaranteed good time.
In a 3 day mad thrash Bill got his motor together and on the pump at The Carb Shop. Some unique things about this engine: first, it was very sensitive to timing and AFR. Once we found the right settings, it made huge power... and it had this crisp, unique sound to it that is very hard to describe. Everyone in the dyno room noticed how it sounded clean and strong once we figured out the AFRs and timing. From what I understand, engines with very good cylinder-to-cylinder consistency (airflow, etc.) display these characteristics.
Lem Evans knows what he's doing with those cylinder heads!
We monitored AFRs with 8 separate sensors. I know now, from more experience, that Bill's combo is just about the best balance you can achieve naturally, without adjusting per-cylinder fuel quantities.
The other impressive detail is that, while it makes well over 1000hp (on pump swill!), it *still* makes almost 600 ft-lbs of torque at 3500rpm!! check out the video where George starts loading the engine before the first pull, watch the torque meter zing up past 585 ft-lbs at 3000rpm... I've never seen it's equal.
I enjoyed the hell out of this trip, hanging out with Bill, Brian, Shaun, Chad, Cole, and the Vrbancic brothers is a guaranteed good time.
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