Evo X upgrades

**scheides** · 06-03-2010

Quote:

Originally Posted by mlomker

In that case the assumption is that the progressive pump back-flows more than a second GSS342 would. Whether progressive or Hobbs, the second pump would not be running under vacuum.

Converting my setup to a Hobbs switch would just require swapping the other 342 in as the second pump and obtaining a Hobbs switch. All the wiring is already there in the glovebox for hooking it up.

I'll be waiting to hear from you before I try something else. I could plug the hole/disable the second pump and try it on one. If it misbehaves on a single pump then it'd prove/disprove the backflow theory.

I say get a hobbs switch and try it that way, and if it still causes problems then plug the second opening and revert to single pump. Gah what a PITA, I feel for you guys

**mlomker** · 06-03-2010

Quote:

Originally Posted by scheides

I say get a hobbs switch and try it that way, and if it still causes problems then plug the second opening and revert to single pump.

I'm wishing that I'd just gone Hobbs from the start. I didn't know that FB sold the Hobbs switches and whatnot until after paying BlaqOPs for their progressive setup. They advertised that as better than their Hobbs setup and I'm a sucker for gadgets, what can I say?

Dave has the same BlaqOPs pumps but in a stock fuel pump housing and with an afpr setup from MAP. The wrench that I threw into this was the FB hanger and I still have the stock fpr. The only thing about the FB hanger that weirds me out is the suction line setup, other than that it's just a couple holes for pushing gas so what could go wrong? lol.

I had the pump housing out and took it all apart last night to replace the primary pump, so the hoses are all good. I guess I could verify the hard-line connections underneath the car.