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XfireZ51
07-09-2013, 09:41 AM
Somebody was on track to trying this. Looks to be significant hp gains.

http://www.lsxtv.com/tech-stories/engine/tech-how-external-vacuum-pumps-free-up-horsepower/?utm_source=rss&utm_medium=rss&utm_campaign=tech-how-external-vacuum-pumps-free-up-horsepower

Fully Vetted
07-09-2013, 01:34 PM
Yeah, I thought Pete was looking into this or had already looked into it. I may be mistaken but I remember this coming up before. As with anything not designed for the LT5 I wonder how it would handle being spun north of 6800 rpm on a regular basis?

Locobob
07-09-2013, 04:17 PM
I seem to recall someone saying Corey Henderson had done some research on this. I've been planning to try the pan-evac route, already have extra O2 bungs in place for tuning purposes which would work for this.