Auto_Werks 3.6

Honestly I wouldn't even know where to begin for you. It seems like you understand some concepts but you apply them incorrectly to the system as a whole. Most basic concept is that air density and air pressure have a linear correlation. So compare the density of 9psi air to that of 15psi air. You've lost 40% density and thus 40% less air mass to react with gasoline to release energy to the wheels (neglecting some temperature change because the 9psi might be a little cooler). It sounds like you're trying to say that you think you've made you air pump so much more efficient that it's drawing the K26 down from 15psi to 9psi. I would simply suggest to look at benefits that cams provide to other similar naturally aspirated engines and see that you're very unlikely to have made more than 5% with a mild cam change, and not ruining the power band. You have more than likely created a valve overlap / exhaust back pressure issue that your wastegate control strategy wasn't able to overcome. That is infinitely more likely than to suggest that you might be making anywhere close to 315 crankshaft horsepower at 9psi (that's 225 stock horsepower x 1.4..... the 40% you think you're getting). Look up some dyno charts and see how much power 951s make at 10psi. You might *think the car feels faster because it probably has a torque curve that's very peaky and gives a push sensation... but i'd say you need to take the car to the dyno in a couple different configurations and see what you're actually getting. Anyone that doesn't see that the turbo itself is the cornerstone to making power on these cars is completely out to lunch. It's painfully obvious.

jimbo1111

Psi in this case is being used as an indicator for restriction. Lets say a k26 can theoretically flow 500cfm and produce 270 hp on a 951 motor at full boost. A cam change increases the engine flow enough to hit that 270 at a lower boost. Not saying you will see more hp.
This is fact not fiction. No matter what size turbo you stuff in your car you will not produce more that 330 to 350 hp on a 951 engine. Unless you improve its efficiency.
Any turbo that can hold boost till redline will yield the same result.

E-man930

🤦🏻‍♂️

Train wreck below.

SirLapsalot

Train wreck = watching the hipsters on the "premier" facebook group pretend to know what they're talking about.

333pg333

That's stupid cheap. I think I paid more than that for a custom harness although it was all milspec hardware but still, this Maxx stuff sounds an excellent option.

333pg333

Who is quoting whom? Which ones are the hipsters again?