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MRBACHAND
08-02-2009, 17:38
Recently installed a Walbro FRB-5, I only get about 5 deadheaded, and 3-5 idle pressure, averages out to 4 with load.

Just curious what others are getting with their FRB-5's.

Thanks.
ToddMeister
08-03-2009, 19:05
I have one on my 05 LLY, get about the same readings you do.
stingthieves
08-05-2009, 06:46
All you NEED -- on your model IP is a registration pressure (at all times ) something greater than zero

An average of 4 is just fine.
MRBACHAND
08-05-2009, 19:33
All you NEED -- on your model IP is a registration pressure (at all times ) something greater than zero

An average of 4 is just fine.


I completely agree with you. Even climbing steepest grade highway I could find going from 65-75 average 11 psi boost. Never dipped under 3.

My truck weighs 9500lbs too so, it was working...

I left it in there, knowing it was still supplying much move volume possibility than my stocker, but just wondering why it's stamped at 10psi, and gauge out of the pump itself (direct hookup), deadheaded at 5.