L92 Longblock + LSA Supercharger - What Cam?

[DavidBoren]

Is the truck/ vvt water pump the only accessory that is out of alignment with the CTS-V/ LSA drive? If so...

Electric water pump. The end.

[RLJ676]

Originally Posted by DavidBoren

Is the truck/ vvt water pump the only accessory that is out of alignment with the CTS-V/ LSA drive? If so...

Electric water pump. The end.

Yep, everything else would come out of the kit I linked above. The VVT cover sticks out further which is why the normal "car" pumps don't fit as cast. That's definitely an easier solution, hadn't thought of it I gues. thanks.

Waiting to see Dave's thoughts on the above, I'm definitely getting the feeling he's seeing no advantage to a VVT. Having owned a stock CTS-V I can attest there isn't a lack of torque w/ this PD blower on a 6.2... I just want to make more power than that haha.

[DavidBoren]

I would imagine that the vvt would improve the driveability, no matter what. No, you don't need it on a positive displacement blower motor. You probably don't need a positive displacement blower motor, for that matter, either.

But things like blowers and boost in these applications make the driving experience more enjoyable. And wouldn't the vvt just make all that power a little bit easier to drive? Wouldn't it just be that much more enjoyable?

Except for maybe limiting the ultimate top end numbers, what disadvantage is there to keeping the vvt?

Would you be willing to not have 700hp at the crank, for a really easy to drive 650 crank horsepower engine?

[RLJ676]

That's the math I'm trying to figure out exactly, and what the costs are.

If I can get a really fun/responsive setup with stock L92 + LSA at stock boost with a good tune that could be the way to go. Otherwise I'll go w/ a LS9 cam and stock boost if that's best as that is a known quantity and affordable, not to mention I like using GM parts where possible haha.

Only bragging rights I'd want is to have more at the wheels then a buddy w/ a lingenfelter setup on his CTS-V...where is upgrade cost more than my engine will (not the whole swap). I am already confident I can outpower his Gallardo lol.

No matter what it will exceed my tires and driving ability for most situations... but since when do we care about that?

[DavidBoren]

That's what I gathered from your previous posts. That's why I think that whatever power may come from sticking that LSA blower on your longblock, with your stock vvt cam, I think will be plenty fun.

It will be the cheapest route, as well. Stock vvt cam, LSA blower, and a good tune. Drive that, see if you have room for more boost or a bigger cam.

It's going to be a beast no matter what.

[RLJ676]

Originally Posted by DavidBoren

That's what I gathered from your previous posts. That's why I think that whatever power may come from sticking that LSA blower on your longblock, with your stock vvt cam, I think will be plenty fun.

It will be the cheapest route, as well. Stock vvt cam, LSA blower, and a good tune. Drive that, see if you have room for more boost or a bigger cam.

It's going to be a beast no matter what.

Realistically I think this is correct. Just don't want to leave a lot on the table if all it takes is a LS9 cam haha. So many variables though... All I know is I can't wait for good power I don't have to warm up for 5 minutes and gets 8 mpg!

[no go nova]

Why not port the stock blower while you have it off? Also if you run a good heat exchanger to keep the charge cool shouldn't that help with stopping knock? And a water/meth injection system that maybe engages at 8psi with a 5 gal tank system so you can run 93 no problem? Just get a good system. maybe pick up a used blower cam thats vvt or non vvt, with new springs and dont forget to do the trunnion upgrade while your at it.