Michael Yount

iTrader: (1)

So some folks are gonna say - yeah, it's worth it. Some will say - no, it ain't worth it. Some will say - it depends on how you're using the car/truck and what your expectations are. The tests were done on an LM7 with a spring upgrade - a requirement if you want to leverage the cam upgrade.

At the end of the day -- you're gonna have to decide what YOU think and then make a choice - there's data in the test. But others' subjective opinions are useful too, provided you understand they're subjective.

G Atsma

Those springs will work for now, though you might want to upgrade to LS2/3 springs as they are a little stiffer and will do a better job.

Scoggin Dickey

iTrader: (34)

We tested our cams in an older 5.3 a few weeks back. Dyno videos and results in our most recent post
https://ls1tech.com/forums/generatio...camshafts.html

Josh Beverly

https://www.hotrod.com/articles/ls-cam-test-comparison/

JS172

If I remember right, the Schwartz Vega ran an LS1 intake with LS6 cam, lighter springs, a 98-02 Camaro 75mm intake and computer. It was alleged to have 400 hp but I’m not sure of that’s whether it was at the flywheel or at the tires.

G Atsma

Which LS6 cam? The early one is 204/211 .525/.525, 116 LSA, while the late one is 204/218, .551/.547, 117.5 LSA.
The early one is much preferred for 5.3 use because it has more low end torque. Likely because of the tighter LSA

68Formula

You remember incorrectly, it was an LS7 camshaft.

https://www.schwartzperformance.com/...e-flying-turd/

68Formula

You remember incorrectly, it was an LS7 camshaft.

https://www.schwartzperformance.com/...e-flying-turd/

Will make over 400hp, at significant loss of torque. https://www.hotrod.com/articles/ls-cam-test-comparison/

JS172

Looking at LS7 vs. LM7 in the Hot Rod article, it seems the LS7 cam didn’t lose torque, went from 384 to 395 ft/lbs.

G Atsma

That's peak torque. It lost a bunch of torque from the bottom half of the curve.
Read the article.

Michael Yount

iTrader: (1)

What???? You mean there's other stuff going on that might be important in a street car besides what's happening at peak? ( Chuckle )