Tuning out afm and cam swap question

[sfc_jones]

LS7: 12638426 - 211-230 .593-.589 120.5
LMG: 12625436 - 196-201 .481-.481 116
LMG: 12593207 - 193-193 .482-.482 116

And of course what we don't see with cam specs is the shape of the lobe which is just as important for determining the motor's manners. There's a guy over on Performance Trucks yanking the cam out of his LQ4, it is smaller than the LS7 and it killed his torque and horsepower. It's better to go too small than too big.

That LS7 Cam sure looks like to have more potential for HP Gains. I was also told that there is no tuning required if you use a LS7 cam in a 5.3.

 

[swathdiver]

That LS7 Cam sure looks like to have more potential for HP Gains. I was also told that there is no tuning required if you use a LS7 cam in a 5.3.

Well, like those who run LS6 camshafts in their trucks, they experience more power but the powerband has moved higher. They've lost 30-50 ftlbs of torque down low but regained it up high and make peak horsepower north of 6000 rpms. I don't see that as truck friendly.

There are seemingly mild camshafts with duration of no more than 210 and lift usually around .500, certainly below .550 that are made for trucks and increase horsepower about 20-30 to the rear wheels. These are by Cam Motion, Crane Cams and Vinci.

Consider the information from these posts Tim: https://ls1tech.com/forums/dynamome...otion-5-3-drop-cam-results-41rwhp-22rwtq.html