Quote:
Originally Posted by sw20kosh
GM is right about efficiency and heat. Centri wins there. You just have to decide on if you want
A. efficiency and torque increases in the higher rpms
B. lower efficiency and torque earlier
Look at the Exige S (or Celica GTS). That EAton roots pumps out more than 250 degrees F charge into the intercooler/engine at 9 psi.
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Oh I know he was right. I was just offering insight into how it came off. You posted in a well thought out manner... and he just said "Oh well I'm right about THIS!" lol
We're sitting here and discussing efficiency and numbers, but the point of view I'm coming from is how it actually drives. Truth is, the centrifugal kit with it's stage one tune is only considerably more powerful than our current e85 n/a power levels above 5200 RPM (according to the dyno Perrin showed me). I don't know about anyone else, but while I do go above 5200, I would say 80% of my driving is below 5200. To people who share the same driving habits, this would be less satisfying than being able to stomp the pedal at 3500 and have torque available there.
I'm not so much concerned with the heat output since most of these kits are running under 8 psi. We aren't talking super high performance. The heat output of any of these kits in stage one form should be well within reasonable limits, provided they are engineered correctly.