Brian Tooley Racing Stage III cam installed

[Chrispy]

It's a zero overlap cam so it'll idle pretty nicely at low rpm. One of the mags did a cam comparison and I believe it was this one, a LS9 cam, stock LSA and an NA cam. I'll see if I can find the link.

You should pick up a lot of power especially if you already have a pulley setup.

[HDRDTD]

Originally Posted by Chrispy

It's a zero overlap cam so it'll idle pretty nicely at low rpm. One of the mags did a cam comparison and I believe it was this one, a LS9 cam, stock LSA and an NA cam. I'll see if I can find the link.

You should pick up a lot of power especially if you already have a pulley setup.

This article?
http://www.chevyhardcore.com/tech-st...d-kicking-ass/

[ZO6 Bryan]

No, this one.
http://www.hotrod.com/how-to/engine/...r-cams-tested/

Notice the LS9 cam actually loses torque until you get past 4400 rpm.

[xgng]

What's the warm idle rpm at?

[Chrispy]

Originally Posted by ZO6 Bryan

No, this one.
http://www.hotrod.com/how-to/engine/...r-cams-tested/

Notice the LS9 cam actually loses torque until you get past 4400 rpm.

Yup that's it. Great writeup and comparison. I'm curious how the aggressive lift/lobes on the BTR will live after say 50K miles. Be interesting to see a similar spec cam with softer lobes. Brian knows cams inside and out.

[ZO6 Bryan]

Actually his cams aren't using the really aggressive lobes and should last just fine.

[Stephen12ZL1]

From BTR web site:

This is possibly the best overall camshaft in the performance aftermarket for GM LSA and LS9 engines. Will work great with any positive displacement supercharger on a 6.2 liter engine. With -10 degrees of overlap it has a nice, mellow idle, but makes the power of much larger cams. The secret is in minimizing the overlap, while maximizing the intake valve closing and exhaust valve opening events. This cam has proven to make more power than other cams that have more lift, which makes this cam more durable. Cam specs are 227/242 .614"/.592" 122+6 and comes a 3 bolt timing gear pattern.

Lift approaching .650" or more while using stock 15 degree rocker arms with too much open spring pressure can damage valve tips long term. We recommend maximum lift of .630" and maximum open pressure of 400 lbs when using stock rocker arms.