Part # to hard plumb wabro in-line
06-15-2006, 12:37 PM
#13
Originally Posted by blue 01
Did not want to cut OEM fuel lines or use rubber hoses and clamps. It was a pain in the *** to find all the thread sizes. Making the SS hoses was very easy with the Earl SS hose and fittings. It didn't increase my fuel pressure as much as I thought.
mounted the pump in 2 existing holes in the frame. Only had to drill one hole to hold the relay.I also used the Nelson wiring harness
Before walbro
in park 42
cruise @55mph 45
wide open 47
After walbro
in park 45
cruise @ 55mph 48
wide open 50
I though some people on here said they were getting 55 to 58 at wide open with the Walbro in-line.
mounted the pump in 2 existing holes in the frame. Only had to drill one hole to hold the relay.I also used the Nelson wiring harness
Before walbro
in park 42
cruise @55mph 45
wide open 47
After walbro
in park 45
cruise @ 55mph 48
wide open 50
I though some people on here said they were getting 55 to 58 at wide open with the Walbro in-line.
thanks for sharing
06-15-2006, 01:05 PM
#14
TECH Regular
Thread Starter
iTrader: (1)
Join Date: Mar 2004
Location: oregon
Posts: 475
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by peppersac
What do i need to wire my fuel pump in? My kit didnt come with jack! Also will all of those part numbers work with my walbro gls 392?
He make a wiring harness with a relay.
I dont know any thing about the walbro gls 392. Let me do a little research. I will get back to you.
Last edited by blue 01; 06-15-2006 at 01:15 PM.
06-19-2006, 10:28 AM
#17
TECH Addict
Join Date: Feb 2004
Posts: 2,120
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by blue 01
<snip>
Before walbro
in park 42
cruise @55mph 45
wide open 47
After walbro
in park 45
cruise @ 55mph 48
wide open 50
I though some people on here said they were getting 55 to 58 at wide open with the Walbro in-line.
Before walbro
in park 42
cruise @55mph 45
wide open 47
After walbro
in park 45
cruise @ 55mph 48
wide open 50
I though some people on here said they were getting 55 to 58 at wide open with the Walbro in-line.
Here is what I see with the stock in-tank pump and a Walbro GSL392 255LPH in-line pump.
Idle = 53 psi
Deceleration = 48 psi
Cruise = 58 psi
WOT = 62 psi
WOT @ 10 psi boost = 67 psi
At Idle to WOT you should see the same fuel pressure with the tank pump alone as you do with the inline unless the in-tank pump is worn out. Under boost the in-tank pump alone will likely not be able to keep up.
Thanks for the info on the fittings and the pics.
Too late for me.
I installed mine over a year ago using EFI Fuel line and fuel line clamps and it is showing no signs of wear.
06-19-2006, 11:56 AM
#19
TECH Addict
Join Date: Feb 2004
Posts: 2,120
Likes: 0
Received 0 Likes
on
0 Posts
Yes I have the stock fuel regulator and in-tank pump. The only change to the fuel system is the Walbro GSL392 installed in-line. O ya I do have the 44# injectors as well. When I first installed it I put it after the filter. After a while and some problems related to my meth kit and not my fuel system I decided to move the fuel filter and mount it after the pump. My install is not nearly as nice and professional looking as yours. Good work.
06-19-2006, 04:24 PM
#20
TECH Regular
Thread Starter
iTrader: (1)
Join Date: Mar 2004
Location: oregon
Posts: 475
Likes: 0
Received 0 Likes
on
0 Posts
I have Dakota Digital Gages. I thought they were rated as some of the best and accurate gages out there. I started installing the STS and 44 injectors this last weekend. When I get done I will see what the pressure dose then.