http://static.summitracing.com/global/images/instructions/pax-1001839%282%291.pdfPG. 17
Not sure as to why the pressure would vent into the engine case??? must have had a broken/leaking diaphram?
http://www.theturboforums.com/smf/index.php?A couple of quotes:
Title: Re: Carter 172 gph boost referenced pump?
Post by: sean on September 30, 2008, 03:06:14 PM
Been running a boost referenced Carter mechanical for several years on a junkyard 5.0 tt combo w/o issue. It isn't a power house, (400-450hp) but it has worked for a low buck 10psi deal. Not sure where the limit of the pump is, have never tried to make more power than what it makes at 10 psi
Title: Re: Carter 172 gph boost referenced pump?
Post by: turbobubba55 on October 06, 2008, 02:50:50 PM
i had several mechanical pumps & the 172 was the best, BUT, it wouldn't keep the bowls full. anything over 7 psi- the diaphragm would stall & not pump fuel. -lots of pressure, but no flow.Straight 6 200 Ford,did not have good luck:
http://www.theturboforums.com/smf/index.php?topic=78651.25;wap2&
http://www.theturboforums.com/smf/index.php?topic=145912.0Hmmmm,, think I've seen those pics before
In general,this is just for a low buck low Boost application.
After approx 8-10 psi of boost presssure,need to run an electric FP for higher boost pressure .
MBHD
