414 Dyno results: Missed combo?

RAMM said

You're absolutely inline with my thinking. Every time an engine becomes more efficient it gets quieter. In fact I think it was Bill Jenkins that said something like that. Actually looking at the BSFC's of this engine with one of the air filter combos it went as low as .387 which was lean but only hurt power by a couple of points. Can you say 20 MPG @ HWY cruise? J.Rob

Click to expand...

I agree. Ive a similar experience lately, just be lite on the pedal, primaries only and I'm really surprised, cranking dynamic like this motor of your, tight quench, solid roller though....it gets surprisingly good mpg and no cacking/pinging @28 when on it hard and when that Sunoco goes in....smooths it nicely just a hair...gets deeper sounding.
Its rag edge...but I like it, and we can tune in more power if we want. Great thread.