Evo X upgrades

**Kracka** · 01-03-2010

Ahh ok, I didn't know that about the X's. Will the 2nd pump only come on during boost or how will it be wired in? What are the specs on those Cosi cams?

**mlomker** · 01-03-2010

Quote:

Originally Posted by Kracka

Will the 2nd pump only come on during boost or how will it be wired in? What are the specs on those Cosi cams?

I'm going to wait for Ron to figure out the wiring & plumbing but I'm assuming a Hobbs switch based on boost for the second pump. Another company, BlaqOps, makes progressive double-pump kits for the X based off boost or maf. It's more sophisticated but they require sending in your stock hanger for modification...I don't want to pay for the downtime (rental car).

These are the same cams that murlo has--266/266. They are mild, not requiring a spring upgrade.

http://www.maperformance.com/coswort...ion-evo-x.html