Camshafts, idle quality, driveability and LSA-REAL WORLD EXP and OPINION

Why use a 104 LSA on a SBC? That head is good enough to use a 107-108 LSA.

But the test still supports what you're saying. The 110 did really well.

Second, the 104 LSA kicked the **** out of the other two for low end grunt, without giving up top end power. I thought that's what all you guys wanted...low end grunt.

Not necessarily. I like a broad flat power band with really good idle manners. That 104 didn't offer either.

Third, no where in that entire article is it said where each cam was installed. That is total bullshit. I'd have taken the 104 LSA and shoved it in at 100, or even 98*'s so 4-6* ahead. That would have helped the idle, because it shuts the INTAKE valve earlier and it would have moved peak torqu down a bit.

Shot in the dark here, since they didn't mention it, I'm going to guess they were either installed straight up or installed per manufacturers recommendation. Now talk about changing the test and a moving target. Lets be fair. If you get into playing around with installing cams other than factory specs you kind of negate the purpose of this test. We can also say that installing 4-6 degrees advanced will not come without consequence. It will change the dyno outcome as well as the idle and off idle manners. The same can be said of the consequence of changing the LSA. It's not without consequence. There is no free lunch here.

And yet and still, the 104 kicked ***.

The test wasn't to prove anything. The 104 did kick ***. So did the other 2. All for different desires and purposes. The thing that I didn't like is a number I love to look at. Average HP and Average tq.

We'll see.

The article that IQ52 posted actually verified what I have been saying the whole time.

Yes and no. Yes in the way that typically less LSA will outperform more as far as gross HP and torque. NO in the way that the idle and low speed suffered.

Who, in their right mind is going to use a stock converter and highway gears with a cam like we are talking?

Just an FYI, you do realize there are some dumb cement heads out there that try to do exactly that.

Edit: make sure you click "expand"