The boost is pretty close to the same peak, with the supercharger having a slightly higher peak as the turbo boost dropped off a bit at higher RPM. Both were on the same motor, same car, same dyno, same everything but the forced induction. I had to draw over the turbo curve as it wouldn't scan very well.

 

very nice! not often you're able to see someone have the same car/dyno with two different mods that aren't cheap. thanks for sharing and nice comparison. what turbo and supercharger are being displayed on the graphs, btw

 

This is why I bought my Turbo, area under the curve

 

Yeah... that area under the curve is oh so nice!!!! That is the one thing that S2ks lack and the turbo takes care of it all... low end torque... very nice.

Andre

 

Look at power at 6k....

200hp vs 260hp


4k....
135hp vs 200hp

TURBO FTW.

 

OP... is that avatar pic for real?

 

i 1st thought 2 wheels were off the ground, but it looks like 3 or all 4 are off the ground, crazy

 

Yes it is. I believe turn 5 at Thunderhill, going reverse direction(CW).

Another example.

 

Let's do that chart vs. a KW SC.


4k 160whp turbo 125whp SC
5k 205whp turbo 185whp sc
6k 245whp turbo 255whp sc
7k 285whp turbo 320whp sc
8k 315whp turbo 370whp sc


A bit closer, with the turbo ahead under 5krpm. I'd trade that for more power up top. I'm not going to be WOT @ 4k rpm that much. Obviously things change as boost is raised, but we're doing basic kit comparisons here.

 

Here is the NEW Vortech with 13psi vs 7.5. Built 2.2L with ported head and 9:1 compression.