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Introducing Modern Low-Shock Camshaft Design (Cam 2)

1:23
24:00
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At 1:23 in

Lake Speed's Ford C3 NASCAR Engine: NEW Comp Cam! 20+ Year Old Camshaft Specs vs Current Technology

What happens here

The discussion shifts to a newer camshaft design (Cam 2), highlighting its 'low-shock' characteristics. This modern design differs in its intake valve opening. While it starts opening earlier, the initial ramp-up is slower compared to older designs. However, it rapidly accelerates through the top dead center (TDC) region, providing a quick burst of airflow. This allows for a more controlled power delivery at the start and a stronger pull in the mid-range.

Goal: Understand the low-shock design philosophy and its effect on initial valve opening.

Tools and materials

  • Camshaft Specification Graph N/A — Comparing the lobe profiles of Cam 1 and Cam 2
  • Pen — Tracing and marking the curves on the graph

What they say

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here around TDC if you compare this to an old like if you look at an NHRA say on stock Eliminator you know those guys with a manual they get a big heavy flywheel on them because they have like a 350 horsepower motor they'll take a heavy flywheel and rev it up get all this momentum store and then drop the clutch and you see them pull the air and the tires in the air and it looks like they're going to just take off and they get out about 60 feet they're just you know kind of slow um where you take an NHRA Pro Mod where it has so much horsepower and when it comes out you know it comes out like an arrow you know there's not a lot of up and down and everything like that they're putting the power in slowly as they get moving and that's exactly what this new where camshaft is like it comes off a little slower but then it can pour in the power later hear it about at about 10 degrees after TDC so here's TDC right here each of these is 30 degrees so about 10 degrees after TDC is where the closest pistonive is so we have to be careful in this region to make sure that we don't run the valve into the Piston Lake's doing Special a special piston for this we gave them this number but we didn't want to carve it up a whole lot more so we've paid a

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