lumpiest cam

Ivoryk3ys78 said

Aren't the Whiplash cams and I would guess some of the others designed to maximize cylinder pressure on low compression engines but still sound radical? I know generally a lopey cam when its a true performance cam is because of overlap. Doesnt it have a lot to do with the intake and exhaust duration staggering on a lot of these?

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That's the marketing hook. That's what they "say". But anything with a lot of duration, a late intake valve closing event and tight LSA is not going to build a "lot" of cylinder pressure. Also, there's no way in hell I would run stock springs with a Whiplash cam, even though they advertise that you can.

If you want a cam like "that" the Comp did it right with the Thumpr line. Low lift and lots of duration on a tight LSA. You can run the Comp 901 for small block and 911 for big blocks making springs affordable and they even fit on stock heads requiring no machining. With the Hughes stuff, they all have lifts well over .500 meaning dual springs and possible cylinder head machining, adding yet another cost.

Contrary to what some people around here say, the Thumpr cams perform well.....actual review from people who've USED them back that up. If you're looking for something to sound really nasty and not looking for every bit of power you can get out of something......which is where most street builds are, the Thumpr line might make sense.

"All that" said, you still need to treat them like any other cam with the same duration, overlap and LSA. With higher than stock converters for automatics and lower ratio rear end gears. Just like you'd treat any other camshaft.