i bought a welbro intank fuel pump thinking i knew it was a fmu because im gona be boostin my car and m not gona have hondata at first so im gona run fmu only and i just want top know is this a fmu or no?

 

unfortunately no. Not an FMU.

These would be FMU's....

http://search.ebay.com/fmu_W0QQsosortpropertyZ1

 

im kinda new with turbos...im working on a turbo kit my self and i always wondered what the purpose for the fmu was ..does it replace check valves?,or is it a cheaper way to go instead of spending the money on a hondata,aem,uberdata ? ive asked friends who know lot about turbos and they had no idea what the vortech fmu was?...sorry if this is a newb question on this subject ,but im trying to expand my knowledge on turbos

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by panda’ek &raquo;</TD></TR><TR><TD CLASS="quote">ive asked friends who know lot about turbos and they had no idea what the vortech fmu was?</TD></TR></TABLE>

Never ask these friends <U>anything</U> technical again...ever.

FMU = Fuel Managment Unit

The acronym is thrown around a lot, but typically refers to a fuel pressure regulator that has a manifold pressure reference on it. It raises fuel pressure in mutiplication to manifold pressure.

Typical 1:1 pressure regualtor in boost:
10psi of boost pressure = 1 x 10psi increase over base fuel pressure
(10psi increase + 45psi base = 55psi of fuel pressure @10psi of boost)

12:1 Vortec FMU in boost:
10psi of boost pressure = 12 x 10psi increase over base fuel pressure
((12 x 10psi increase) = 120psi + 45psi base = 165psi of fuel pressure @10psi of boost)

Now, you see why people are getting out of the pump/FMU setup? 165psi is a lot!

 

ok thanks man yea thats what i thought i already bought my fmu just wanted to make sure but imbuying the welbro fuel pump aswell as for the fuel stuff for turbo .thanks again

 

...thanks for the info...

 

only bad thing about FMU is that it boosts the fuel pressure up really really high in the fuel rail, which isn't the coolest thing. IT can be way to much sometimes 100+ PSI in the rail. Which makes it good for low boost apps.