2009-2015 Cadillac CTS-V Performance Mods Discussion, LS9 cam on the way in Cadillac CTS-V Series Forum - 2009-2015; I read "similar cam" so they will have similar gains. Since you chimed in, any recommendations? There are hundreds of ...
i went ahead and installed the ls9 cam. i hope it makes me about 30rwhp. i just wanted something that drives like stock but has good gains in power. if i don't make the power with my over all combo i will put the lingenfelterGT9 cam in.
I'm ready to order a camshaft. Does anyone that went with a ls9 wish they would have went a little larger? I plan to also do ported heads in the future so I would like something with a little more lift but I want what to be able to tell there is a cam in the car at all.
Not me, I'm perfectly happy with the LS9 cam. The power added met my expectations and being an OEM cam from a 50-state car, I'm not expecting to have any problems passing the Cali smog test down the road. If I wasn't worried about smog, I'd probably be running LPE's GT9 cam (no lope claimed and who knows if it would've passed smog anyway?). Beyond that, from what I understand, the GT11 cam has a nice, ever-so-slightly lopey idle that you can still run on an auto. At least one other forum member has posted over the last year or so that he is running this cam.
Mine went in with a 9" pulley and ported snout and I went from 525 to 574 RWHP. Although the pulley alone is said to be good for around 30, I don't think this means the cam alone would be good for only 20. It might also be good for 30 on it's own, but since I have stock heads, exhaust manifolds, and all 4 cats, perhaps that is the limiting factor. From the dyno graphs, it looks like more power across the board (pulley), but the gap increases at the top end (cam)--so they raised the rev limit slightly to take advantage of it (better springs, but stock valves, pushrods, and rockers).
Razor, I don't have my charts handy at the moment, but I seem to recall that it tracked pretty linearly. When I was at 524 RWHP, I believe my RWTQ was numerically within 10 points. I'm at 565 RWTQ now--still within 10 points.
I'm liking the specs on the GT9 camshaft, its more into the lift range a good set of CNC heads can take advantage of. I'm just wonder about how the car will behave with the larger stick in there? Does anyone have any experiance with this camshaft? Can you hear it at idle, any shake to the car, any low rpm issues?
^ thank, so you were bumped about 50+ over stock with a ls9 cam, ported snout & a 9". The 9" pulley is good for about 20-30 that would leave the snout and cam with about 20 left. The gain is smooth and very streetable. I think cam selection is a case by case basis. There are cams that will give alot of hp and pull tq or give slightly across the whole band. For someone that does inner city driving they might want a different cam than someone who drives 90% highway. Also this would play into if you are a manual transmission or automatic. If you have a large increase only at a certain rpm its much easier to get access to that power with a shifter and a clutch than two flippy paddles.