Aftermarket Cam lift: Is there more power to be had?

[PJ-4.2L]

If I'm not mistaken, Schrick, Techtonics, etc- they all offer their cams with 11mm of lift. What's the stock 3.2L lift and duration? What would happen with cams that were say, 13 or 14mm of lift?

[PowerDubs]

You would coil bind the springs well before that much lift. If you changed the springs and retainers, you would still smack pistons.


- Josh

[PowerDubs]

But if you are still interested, here are flow #s. 11mm lift is .43

[PowerDubs]

And to make any power, we all need to stop breathing through this-

[sTT eV6]

As said..the runner will be your downfall.
My head flows this at 10" WG..

Steve

[Yak Meat]

Is the HPA new liquid cooled manifold any better flow wise?

[PowerDubs]

I wouldn't even run one of those on a turbo..

There are pictures somewhere showing the 'step-up' in the plenum.

[LR32]

EVERYDAY YOU LEARN SOMETHING NEW.

[Yak Meat]

I wouldn't even run one of those on a turbo..

There are pictures somewhere showing the 'step-up' in the plenum.

What do you mean?

[PowerDubs]

The design of the plenum blocks off roughly 30% of the space directly after the TB.

(At least from the picture here, on the internet, for what that is worth)

They were working with packaging constraints to be sure. Just not my cup of tea.

[need_a_VR6]

Someone should get flow numbers with the stock IM on there.

Ps: Josh, tag!

[PowerDubs]

A flow bench would be a fun tool to have...

As would a dyno..

[need_a_VR6]

I keep meaning to make one.. someday.

[PowerDubs]

Which.

Both can, and have been home built before.


- Josh

[need_a_VR6]

Flow bench first, it would be easier.

[Rford71]

I have Schrick cams 268/264 in my mk1 TT 3.2. I plan on turboing my car this winter should I leave the 268/264 in or go back to stock cams? What are the pros and cons?

Thanks
Robert

[PowerDubs]

Rob,

Cams make pwoer everywhere in the RPM range and have no negatives with the turbo.

The only reason to get rid of them is if you need to sell them for cash to fund the turbo kit.

[Rford71]

Ok,

Thanks,

Josh