So I'm trying to look around at cam specs, with my current setup, while looking at a future engine build. I have a 2004 Saab 9-3 linear that's at stage 4, and getting e-85 in the spring (3" turboback exhaust, FMIC, spec 3+ clutch w/ aluminum flywheel, siemens #60 injectors, TD04l-14t turbo swap, JZW custom tuned at 25 psi). I also have a full Koni yellow/Vogtland 35mm suspension.

I know that the b207l/r (LK9) engines are the same ecotec engine as an LSJ, and that the main difference in the b207's is the camshaft specs, found in the end of the page on this thread:
Cam Specs 06' 9-3 SS???? [Archive] - SaabCentral Forums

I'm running a lot more boost than stock, with the linear cams, and my future build will consist of forged internals, and still not sure if I want the same td04l-14t, or a gt3071... I want to use it for some racing, preferably not drag, and still want to keep it drivable for the street. I know an earlier spooling turbo will be good for autocross, but the torque spike down low will eat clutches quick, and lacks top end power that a gt3071 would have. Plus, I'm concerned about understeer and torque steer on a high performance FWD car, If any of you 400+ whp SS/TC guys could share your experiences at the track, that would be a huge help.

I've been trying to read up on camshaft applications, but stuck in limbo as to what bigger cams in this engine will do to the powerband on a small turbo on high boost vs the bigger turbo with more top end power and torque. I've seen the Comp cams that ZZP sells for the ecotec, and not sure if there is anything to gain in both situations... I already have the smaller cams, but will cams with a bigger lift offer any worthwhile improvement that should be considered here?

 

i am fallowing this here. i also have a 2005 9-3. im going for stage 3, but i would love to add cams. iv added a 3' turbo back exhaust including down pipe with no cat.also custom intercooler and intake piping with a larger intercooler. i think im going to go with brew city boost for my tuning. i think that with the right grind you could add power and put it higher up in the powerband.

 

the saab engines use different cam gears then the lsj and cams the cams we use are notched in the ends to lock the cam gears in place the saab stuff ive seen dose not use that it is flat and smooth

 

Right.
You can use lsj cams in your motors. Just need to use an lsj timing kit.

 

boom!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

 

As you Saab's don't have toworry about cam sensor allignment, you can shop @ Comp Cams directly for a suitable turbo grind.

And as above, use some LSJ cam gears for drop in placement or you need to measure the cam timing for the flat Saab gears. (See Ecotec build book for cam timing procedure)