340 Static Compression Numbers and Test Procedure

Yes. If it can be done. I've had hopes on technolgy before - such as stratified injection - that didn't/couldn't be implemented widely. :(
My takeaway for our stuff is that we need to get sufficient heat in at idle - especially when we've mucked up the vacuum which normally aids in partial vaporization and distribution.

Shrinker wrote alot about fuel conditions and reactions. He was always investigating, asking and learning - and sharing. I understand enough of what he wrote most of the time to get the gist. Sometimes I get a little more when I go back and read again...

here commenting on dyno testing of a 440
Motorsports Village • View topic - Dyno time

I've posted this one before
Motorsports Village • View topic - How a Wideband gets tricked to read wrong AFR

and way deep relationships of fuel, heat, pressure, products of combustion...
Motorsports Village • View topic - Timing/jetting Shrinker

One thing that I really have come to appreciate is that he tried to get us to see things from the combustion perspective, and then work back to what needs to be done. It's the totally the opposite of the way most of us got into this. We were advised 'change jets' or 'change timing' or 'add squish' etc etc. and see what happens. Shrinker says - try to understand what is happening in the cylinders and then make the changes that ought to correct the situation. I think that's what some of you guys who have worked with engine tuning alot do. But those of us who did not have to make a concious effort to think that way.



Those are some cool links. It's amazing how some of this stuff comes about. I've known for a long time that low compression was mostly a bad thing. As Shrinker explains it, it makes more sense to me.

And as we both know, living a dying by an O2 sensor is a bad, bad way to tune. You can get lied to.

Pump gas is its own deal. Just like alcohol. Or race gas. I know pump gas is doable at 11:1 and I think I can do it at 12:1 (or I'm going to make a fool of myself).

To me, if you can get 92-93 octane pump gas, even with 10% ethanol, you should be able to do 10.5:1 even on a very mild build and be successful. And have a cleaner, more powerful engine that should be easier to tune.