Vacumn pumps

Guy's I need your input. I'am in the market for a Vacumn pump setup(new/used) for Lil Tweety. What are preferred for a wet sump setup? I was thinking maybe a 3 vane pump pulling from the valve cover. What brand seems to work better than others and what kind of HP difference on the Dyno,w/or w/out a pump?

3vane is right for a wet sump, we have gain 35+ on the dyno


-rich


gz works good, moroso works fine also

Rick,

The Stefs and GZ pumps are reworked Ford smog pumps and are in the Ford Racing/SVO catalogs. The Moroso pumps are good also. I've used the Moroso 3 vane pump and seen an 18 Hp increase on the dyno on a 498 CID engine in back to back testing. You'll see a little more on bigger engines.

Charlie

Rick,
I have no data as far as engine dyno numbers. How ever I would steer clear of the Aerospace pump. I had one new and it was a piece of shit. I ended up putting a Moroso 4 vane on my motor even though it was intended for a dry sump setup. Simply use a vacuum bleed off valve that is adjustable and limit how much vaccuum it will pull

Travis.

Hey, Travis:
What problems did you experience with the Aerospace vacuum pump? I just want to know as I have the same set up on my 545 and haven't had any problems (so far). What are the issues?

Wayne (SAWDOFF) Pearce

Thx Travis, Like Wayne ask,What kind of problems did it have and are most of them setup close to the same?