Originally Posted by freezeg35

hey andy, looks like your getting the more power itch just like i did. Have you installed the 3.12 pulley on my old vortech yet?

Originally Posted by 617G

Hahaha...yeah man, I've gotten the itch. I'm putting in that 3.12, 380cc and Greddy EU as we speak, along with Greddy Type RS bov, tranny cooler, walbro and a couple other minor things. My shop just did a 350z with the 3.12 and because of the cold weather it was seeing 10 lbs of boost and dynoed at like 430/340, so we'll see what I can get So far I'm enjoying your vortech very much, but the bug for more power is hard to resist

Originally Posted by THE TECH

I'm confused. The Greddy bov is not made for s/c use and has been tried in the past with less than optimal success. Supercharger psi will not change cause the weather is colder. The amount of boost produced is limited by the pulley size.

Originally Posted by sentry65

well most people with turbos are running regular street tires and not a whole lot wider - maybe 275's mounted on their big 19 inch rims. Yeah those guys spin the wheels out in 1st thru 3rd gear all day long and to them that's really cool - means "they have a lot of power" To me, it just means their car isn't very well thought out. The guys running slicks or competition or drag radial tires hook up pretty well and their car can move though

the nature of the vortech is going to help traction in the lower gears. For me, I'd rather have more traction than power cause then I know I can hammer the throttle in any gear at any rpm and it will predictably and consistently go vs having to give it 60-90% throttle in certain parts of the rpm range. This is especially important when you're dealing with turns. It's true a good driver can deal with the turbo's big torque and feel that they shouldn't give much more throttle than a certain point. But still it's nice to know you can stomp the throttle anytime with the vortech and the car won't do anything crazy. This is especially true of the single turbos who really do have more of a peaky spike of torque in the midrange - dynos always look like a pointy mountain

Some of the fastest production cars don't even have huge early torque. The car usually relies on strong lower gearing and good traction, then the bigger power comes in once the engine starts winding up. The Porsche Carrera GT for example has 435 crank torque (around 370 at the wheels) and Ferrari F430 has 343 crank torque (around 290 at the wheels). Aside from so many other things, one of the things that makes those cars as fast as they are is their ability to get such good traction. I see the turbo Z's as being more similar to vipers than those cars. And if viper people were making fun of F430 or Carrera GT people for their pitiful torque then that's their opinion.

There's lots of other things car engineers do to make cars fast other than the torque number. Let's not forget that up high, the vortech holds it's own fairly well in the torque department, and that's where you are usually when you're racing anyway.